HK1101671A - Personal care composition containing a cleansing phase and a benefit phase - Google Patents

Description

Personal care compositions comprising a cleansing phase and a benefit phase

Technical Field

The present invention relates to personal care compositions suitable for use on mammalian skin and hair. These compositions comprise a cleansing phase and at least one benefit phase (benefit phase) selected from the group consisting of a fatty compound gel network (fat compound gel network), a hydrophobic gel network in a fatty compound gel network, a fatty compound gel network in a hydrophobic gel network, or a silicone or silicone gel. These products are used to provide a multi-phase cleansing composition that is packaged in physical contact while remaining stable and providing improved in-use and after-use hair and skin benefits.

Background

Cleansing compositions which may comprise detersive surfactants and cationic polymers to enhance deposition of conditioning oils, such as silicone oils, to impart conditioning or smoothness properties to the surfaces treated therewith are known in the art. However, these conditioning oils are limited in the range of physical, optical, and aesthetic benefits they provide. Rinse-off conditioning compositions comprising cationic surfactants and fatty alcohols are also known. These compositions also contain various oils and silicone compounds to provide surface smoothness, curl control, and hair grooming benefits. Conditioners for hair have a particular viscosity desired for such products. These products are based on a combination of surfactants (usually quaternary ammonium compounds) and fatty alcohols. This combination produces a gel network structure that provides the desired rheological properties to the composition.

Typically, individuals with higher hair conditioning requirements use separate shampoo and conditioner products. The hair conditioning benefits provided by conditioning-shampoos, commonly referred to as 2-in-1 shampoos, are not always sufficient. Treatment with a separate conditioning agent provides excellent wet and dry hair conditioning benefits. The gel network structure of the hair conditioner can produce unique in-use and after-use wet hair conditioning benefits.

There has been a long felt need to deliver conditioner gel network benefits from a bottle of hair cleansing-conditioning composition. Typically, when the conditioning gel network is added to a hair cleansing composition comprising a detersive/anionic surfactant, the rheology of both the conditioning gel network and the cleansing composition is disrupted. This undesirable interaction between the anionic cleansing phase and the conditioning gel network has a negative impact on the lather performance of the product.

One attempt at providing hair conditioning and cleansing benefits from personal cleansing products while maintaining gel network structure and lather is a dual chamber package. These packages include separate cleansing and conditioning compositions and are capable of co-dispensing the two in one or two-stream. The separate conditioning and cleansing compositions are maintained in a physically separate and stable state during long term storage and immediately prior to application, and then mixed at the time of dispensing or after dispensing, providing conditioning and cleansing benefits from a physically stable system. While such dual-chamber delivery systems may provide improved conditioning benefits over the use of conventional systems, it is often difficult to obtain consistent and uniform performance because of the uneven dispensing ratio between the cleansing and benefit phases from these dual-chamber packages. In addition, these packaging systems add considerable cost to the finished product.

Thus, there remains a need for a personal cleansing composition that provides cleansing and improved hair conditioning benefits delivered from a single product. There also remains a need for a personal cleansing composition comprising two phases in physical contact that is stable over time. Accordingly, it is an object of the present invention to provide a multi-phase hair cleansing composition comprising a cleansing phase and a benefit phase (e.g., conditioning, styling, hair shine enhancement, hair coloring, hair moisturizing, hair health enhancement, etc.) which is packaged in physical contact while remaining stable, wherein the composition provides improved in-use and after-use hair benefits.

Summary of The Invention

The present invention relates to a multi-phase personal care composition comprising a cleansing phase and at least one benefit phase selected from the group consisting of a fatty compound gel network, a hydrophobic gel network in a fatty compound gel network, a fatty compound gel network in a hydrophobic gel network, or a silicone or silicone gel. These products are used to provide multi-phase cleansing compositions that are packaged in physical contact while remaining stable and providing improved in-use and after-use hair and skin benefits. In the present invention, the cleansing phase, the benefit phase, or both the cleansing phase and the benefit phase can be visually clear.

The present invention also relates to a method of using the multi-phase personal care composition.

Detailed Description

The present invention relates to multi-phase personal care compositions suitable for use on mammalian hair or skin comprising a cleansing phase and a benefit phase. It has been surprisingly found that a multi-phase liquid cleansing composition comprising a cleansing phase and an additional benefit phase, wherein the cleansing phase and the additional benefit phase are packaged in physical contact while remaining stable, can be formulated to provide improved hair benefit during and after application while also providing excellent hair conditioning and cleansing benefits. It has been found that the above compositions can be formulated with sufficiently high levels of benefit agents without affecting the lather performance and stability of the product. It has been found that multiphase personal care compositions with enhanced stability can be formulated by density matching of the cleansing phase and benefit phase, as well as incorporating a structuring agent (structurant) in the cleansing phase.

The essential components of the multi-phase personal care composition are described below. Also included are non-exclusive descriptions of various optional and preferred components that may be used in embodiments of the present invention. While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description.

All percentages, parts and ratios are based on the total weight of the composition of the present invention, unless otherwise specified. All weights as they pertain to listed ingredients are based on the active level and, therefore, do not include solvents or by-products that may be included in commercially available materials, unless otherwise specified. Herein, the term "weight percent" may be expressed as "wt.%".

All molecular weights used in the present invention are weight average molecular weights expressed as grams/mole, unless otherwise indicated.

The term "charge density" as used herein relates to the ratio of the number of positive charges on the monomeric units making up the polymer to the molecular weight of said monomeric units. The charge density multiplied by the polymer molecular weight determines the number of positively charged sites on a given polymer chain.

Herein, "comprising" means that other steps and other ingredients which do not affect the end result can be added. The term includes the terms "consisting of and" consisting essentially of. The compositions and methods/processes of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well as any of the additional or optional ingredients, components, steps, or limitations described herein.

The term "visually distinct" as used herein means that the regions occupied by each phase are individually recognizable to the human eye when the distinct, separate regions are in contact with each other (i.e., they are not emulsions or particle dispersions smaller than about 100 microns).

The term "visually transparent" as used herein means that the composition has a transmission of greater than 60%, preferably greater than 80%. The transparency of the composition was determined using ultraviolet/visible (UV/VIS) spectrophotometry, which measures the absorption and transmission of UV/VIS light by sampling. Light wavelengths of 600nm have been shown to be sufficient to characterize the transparency of cosmetic compositions. Typically, it is best to follow specific instructions associated with the particular spectrophotometer being used. Typically, the process of determining percent transmittance begins with setting the spectrophotometer to 600 nm. Then, a calibration "blank" was run, and the readout was calibrated to 100% transmission. The test sample is then placed in a cuvette designed to fit the particular spectrophotometer and the percent transmission is measured spectrophotometrically at 600 nm.

The terms "multi-phased" and "multi-phase" as used herein mean that at least two phases occupy separate and distinct physical spaces in the package in which they are stored, but are in direct contact with each other (i.e., they are not separated by a barrier, and they are not emulsified). In a preferred embodiment of the present invention, a "multi-phase" personal care composition comprising at least two phases is present in the container in a visually distinct pattern. The pattern results from the mixing or homogenization of a "multiphase" composition. These patterns include, but are not limited to, the following examples: striped, marbled, straight, interrupted, cracked, mottled, veined, tufted, spotted, geometric, speckled, ribbon, helical, spiral, aligned, variegated, textured, grooved, ridged, waved, sinusoidal, helical, twisted, curved, looped, ribbon, slitted, contoured, non-homogeneous, laced, interwoven or braided, basket, spotted, and tessellated. Preferably, the pattern is selected from the group consisting of striped, geometric, marbled and combinations thereof. In a preferred embodiment, the striped pattern may be relatively uniform and consistent throughout the package. Alternatively, the striped pattern may be non-uniform, i.e., wavy, or non-uniform to some extent. The striped pattern need not extend over the entire package. These phases may be of various colors or contain particles, glitter or pearl powder.

The term "water-soluble" as used herein means that the components of the present composition are soluble in water. Typically, this component should be dissolved at a concentration of about 0.1%, preferably about 1%, more preferably about 5%, even more preferably about 15% by weight of the aqueous solvent at about 25 ℃.

As used herein, unless otherwise indicated, the term "anhydrous" refers to compositions or materials that contain less than about 10%, more preferably less than about 5%, even more preferably less than about 3%, and even more preferably 0% water by weight.

As used herein, unless otherwise indicated, the term "ambient conditions" refers to ambient conditions of 101kPa (one (1) atmosphere), 50% relative humidity, and 25 ℃.

As used herein, unless otherwise indicated, the term "stable" refers to compositions in which the visible pattern or arrangement of the phases in different locations in the package does not change significantly over time when left in physical contact under ambient conditions for a period of at least about 180 days. Furthermore, it means that no separation, cream-like or precipitation occurs. By "separate" is meant that the perfect distribution of the visually distinct phases is disrupted such that a larger area of at least one phase is brought into aggregation until the equilibrium distribution ratio of two or more compositions relative to each other is disrupted.

As used herein, unless otherwise indicated, the term "personal care composition" refers to compositions of the present invention, wherein the compositions are intended to include only those compositions that are topically applied to hair or skin, and particularly to exclude those compositions that are primarily directed to other applications (such as hard surface cleaning, fabric or laundry cleaning, and similar other applications) and are not primarily intended to be topically applied to hair or skin.

The pH of the compositions of the present invention is preferably from about 2 to about 8.5, more preferably from about 3 to about 7.5, even more preferably from about 3.5 to about 6.5. The ratio of the cleansing phase to the benefit phase is preferably from about 10: 1 to about 1: 10.

The cleansing phase exhibits high viscosity, but it is highly shear diluted. The viscosity of the cleansing and benefit phases ranges from about 10pa.s (10,000 centipoise) to about 200,000pa.s (200,000,000 centipoise) when the stress is measured from about 1 to about 20 pascals, more preferably from about 100pa.s (100,000) to about 100,000pa.s (100,000,000 centipoise) when the stress is measured from about 1 to about 20 pascals. The viscosity of the phases can be measured using a Haake RS 150 RheoStress rheometer. The measurements were performed under controlled stress conditions of about 1 pascal to about 500 pascals. Measurements were made using a 60mm parallel plate with a plate gap size of about 0.75 mm. All measurements were made at about 25 ℃.

With appropriate composition, the cleansing phase may constitute lamellar or vesicular structures. Both lamellar and vesicular structures are considered liquid crystalline and are birefringent. The birefringent material appears bright between crossed polarizers under an optical microscope.

A. Cleansing phase

The multi-phase personal care compositions of the present invention comprise a cleansing phase suitable for application to hair or skin. Surfactants suitable for use herein include any known or otherwise effective cleansing surfactant suitable for application to hair or skin, and which is also compatible with the other essential ingredients in the aqueous cleansing phase of the composition. These cleansing surfactants include anionic surfactants, nonionic surfactants, cationic surfactants, zwitterionic or amphoteric surfactants, or combinations thereof. Preferably the cleansing phase is structured and/or discrete.

The aqueous cleansing phase of the multi-phase personal care composition preferably comprises a cleansing surfactant at a concentration of from about 1% to about 85%, more preferably from about 3% to about 80%, even more preferably from about 5% to about 70%, by weight of the aqueous cleansing phase. The preferred pH range for the cleansing phase is from about 3 to about 10, preferably from about 5 to about 8.

Anionic surfactants suitable for use in the cleansing phase include alkyl sulfates and alkyl ether sulfates. Each of these materials has the formula ROSO₃M and RO (C)₂H₄O)_xSO₃M, wherein R is an alkyl or alkenyl group of from about 8 to about 24 carbon atoms, x is from 1 to 10, and M is a water-soluble cation such as ammonium, sodium, potassium, and triethanolamine. Alkyl ether sulfates are typically prepared as condensation products of ethylene oxide with monohydric alcohols containing from about 8 to about 24 carbon atoms. Preferably, R has from about 10 to about 18 carbon atoms in the alkyl and alkyl ether sulfates. The alcohol may be derived from fats, such as coconut oil or tallow, or may be synthetic. Lauryl alcohol and straight chain alcohols derived from coconut oil are preferred herein. The above alcohols may be reacted with from about 1 to about 10, preferably from about 2 to about 5, more preferably about 3, molar ratios of ethylene oxide, and the resulting mixture (which molecular species has, for example, an average of 3 moles of ethylene oxide per mole of alcohol) is treated with sulfuric acid and neutralized.

Specific examples of alkyl ether sulfates that can be used in the cleansing phase are sodium and ammonium cocoalkyl triethylene glycol ether sulfate, sodium and ammonium tallow alkyl triethylene glycol ether sulfate, and sodium and ammonium tallow alkyl hexaoxyethylene sulfate. Highly preferred alkyl ether sulfates are those comprising a mixture of individual compounds having an average alkyl chain length of from about 10 to about 16 carbon atoms and an average degree of ethoxylation of from about 1 to about 4 moles of ethylene oxide.

Other suitable anionic surfactants include those of the formula [ R¹-SO₃-M]Water soluble salts of organic sulfuric acid reaction products of (2), wherein R¹Selected from straight or branched chain saturated aliphatic hydrocarbon groups having from about 8 to about 24, preferably from about 10 to about 18, carbon atoms; and M is a cation. Suitable examples are salts of organic sulfuric acid reaction products of hydrocarbons of the methane series, including iso-, neo-, exo- (ineso-) and n-paraffins having from about 8 to about 24 carbon atoms, preferably from about 10 to about 18 carbon atoms, and sulfonating agents, e.g., SO obtained according to known sulfonation methods, including bleaching and hydrolysis₃、H₂SO₄And oleum. Preference is given to sulfonation of C_10-18Alkali metal and ammonium salts of n-paraffins. Other suitable surfactants are described in McCutcheon's emulsifiers and Detergents, published by m.c. publishing co, journal of 1989 and U.S. patent 3,929,678.

Preferred anionic surfactants useful in the cleansing phase include: ammonium lauryl sulfate, ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monoglyceride sodium sulfate, sodium lauryl sulfate, sodium laureth sulfate, potassium laureth sulfate, sodium lauryl sarcosinate, sodium lauroyl sarcosinate, lauryl sarcosinate, cocoyl sarcosine, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate, potassium lauryl sulfate, monoethanolamine cocoyl sulfate, sodium tridecyl benzene sulfonate, sodium dodecyl benzene sulfonate, and combinations thereof.

For example, in some embodiments, anionic surfactants having branched alkyl chains, such as sodium trideceth sulfate, are preferred. In some embodiments, mixtures of anionic surfactants may be used.

Additional surfactants selected from the classes of amphoteric, zwitterionic, cationic, and/or nonionic surfactants can be incorporated into the cleansing phase composition.

Amphoteric surfactants suitable for use in the cleansing phase include those broadly described as derivatives of aliphatic secondary and tertiary amines in which the aliphatic radical can be straight or branched chain and wherein one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic water solubilizing group, e.g., carboxy, sulfonate, sulfate, phosphate, or phosphonate. Examples of compounds falling within this definition are: sodium 3-dodecylaminopropionate, sodium 3-dodecylaminopropane sulfonate, sodium lauryl sarcosinate, N-alkyl taurines (such as those prepared by reacting dodecylamine with sodium isethionate, as set forth in U.S. Pat. No. 2,658,072), N-higher alkyl aspartates (such as those prepared according to the process set forth in U.S. Pat. No. 2,438,091), and those products described in U.S. Pat. No. 2,528,378.

Zwitterionic surfactants suitable for use in the cleansing phase include those that are broadly described as derivatives of aliphatic quaternary ammonium, phosphonium, and sulfonium compounds, in which the aliphatic radicals can be straight or branched chain, and wherein one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic group, e.g., carboxy, sulfonate, sulfate, phosphate, or phosphonate. Suitable zwitterionic surfactants described above are of the formula:

wherein R is²Comprising an alkyl, alkenyl or hydroxyalkyl group having from about 8 to about 18 carbon atoms, from 0 to about 10 ethylene oxide moieties and from 0 to about 1 glyceryl moiety; y is selected from nitrogen, phosphorus and sulfur atoms; r³Is an alkyl or monohydroxyalkyl group containing from about 1 to about 3 carbon atoms; x is 1 when Y is a sulfur atom, and X is 2 when Y is a nitrogen atom or a phosphorus atom; r⁴Is an alkylene or hydroxyalkylene group having from about 1 to about 4 carbon atoms and Z is a group selected from carboxylate, sulfonate, sulfate, phosphonate, and phosphate.

Other zwitterionic surfactants suitable for use in the cleansing phase include betaines including higher alkyl betaines, such as coco dimethyl carboxymethyl betaine, coco amidopropyl betaine, coco betaine, lauryl amidopropyl betaine, oleyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl-alpha-carboxyethyl betaine, cetyl dimethyl carboxymethyl betaine, lauryl bis- (2-hydroxyethyl) carboxymethyl betaine, stearyl bis- (2-hydroxypropyl) carboxymethyl betaine, oleyl dimethyl-gamma-carboxypropyl betaine, and lauryl bis- (2-hydroxypropyl) -alpha-carboxyethyl betaine. Representative of the sulfobetaines may be coco dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, lauryl dimethyl sulfoethyl betaine, lauryl bis- (2-hydroxyethyl) sulfopropyl betaine, and the like; amino betaines and amino sulfobetaines (wherein RCONH (CH)₂)₃The group is attached to the nitrogen atom in the betaine) may also be used in the present invention, wherein R is an alkyl group.

Amphoacetates and diamphoacetates may also be used.

Amphoacetate salt

Amphoacetate salt

The amphoacetates and diamphoacetates conform to the formulas (above) wherein R is an aliphatic group containing from about 8 to about 18 carbon atoms. M is a cation such as sodium, potassium, ammonium or substituted ammonium, and n is from about 7 to about 17. In some embodiments, sodium lauryl amphoacetate, sodium cocoamphoacetate, disodium lauryl amphoacetate, and disodium cocoamphoacetate are preferred.

Fatty acid alkanolamides may also be used. Preferred alkanolamides include Cocamide MEA (cocoyl monoethanolamide) and Cocamide MIPA (cocoyl monoisopropanolamide). More preferred are ethoxylated alkanolamides. In this embodiment, PPG-2 hydroxyethyl coco/isostearamide liquid surfactant is preferred.

Cationic surfactants may also be used in the cleansing phase but are generally less preferred and preferably comprise less than about 5% by weight of the cleansing phase composition.

Nonionic surfactants suitable for use in the aqueous cleansing phase include the condensation products of alkylene oxide groups (hydrophilic in nature) with an organic hydrophobic compound, which may be aliphatic or alkyl aromatic in nature.

Without being bound by theory, it is believed that in some embodiments, the compositions of the present invention may have a layered structure. The compositions of the present invention have free-flowing non-newtonian shear thinning properties and the ability to suspend components (which is a known property of lamellar phase surfactant compositions).

Typically, surfactants are sold as aqueous or other solvent solutions that dilute them to less than 100% active surfactant, thus "active surfactant" refers to the actual amount of surfactant delivered into a free-flowing composition from a commercial surfactant formulation.

A preferred cleansing phase is available from Rhodia under the tradename Miracare SLB-365. This cleansing phase was a blend of sodium trideceth sulfate, sodium lauroamphoacetate, and cocamide MEA.

The total amount of all surfactants (e.g., anionic, nonionic, amphoteric and/or zwitterionic, and cationic) taken together is typically from about 8% to about 30% active surfactant, and preferably from about 10% to about 20% active surfactant. In some embodiments, it is preferred that at least one surfactant has an aliphatic chain, which may have branching or unsaturation, or a combination thereof.

B. Beneficial phase

The multi-phase personal care composition of the present invention further comprises at least one benefit phase selected from the group consisting of a fatty compound gel network, a hydrophobic gel network in a fatty compound gel network, a fatty compound gel network in a hydrophobic gel network, or a silicone or silicone gel. Preferably, the benefit phase is present in an amount of from about 1% to about 95%, preferably from about 5% to about 90%, more preferably from about 10% to about 80%, by weight of the composition. Each benefit phase may serve as a delivery vehicle for delivering a conditioning agent or other benefit agent to the hair, or it may serve as a conditioning agent or other benefit agent itself.

1. Fatty compound gel network:

the benefit phase of the present invention may comprise a gel network. The gel network comprises a cationic surfactant, a solid fatty compound, and an aqueous carrier.

a. Cationic surfactant

The cationic surfactant may be included in the benefit phase composition at a level of preferably from about 0.1% to about 10%, more preferably from about 1% to about 8%, still more preferably from about 2% to about 5% by weight.

The cationic surfactant, together with the fatty compound and aqueous carrier below, form a gel network suitable for providing various benefits such as slippery feel on wet hair and softness and moisturized feel on dry hair. According to the above gel base provided, the cationic surfactant and the fatty compound are contained at such a level that the molar ratio of the cationic surfactant to the fatty compound is in the range of preferably about 1: 1 to 1: 10, more preferably about 1: 2 to 1: 6.

Preferred cationic surfactants are those having longer alkyl chains, i.e., C18-22 alkyl groups. The above cationic surfactants include, for example, behenyltrimethylammonium chloride and stearyltrimethylammonium chloride, and also more preferably behenyltrimethylammonium chloride. It is believed that cationic surfactants having longer alkyl chains provide improved deposition on hair and thus improved conditioning benefits, such as improved softness on dry hair, compared to cationic surfactants having shorter alkyl chains. It is also believed that the above cationic surfactants can reduce irritation compared to cationic surfactants containing shorter alkyl chains.

Cationic surfactants useful herein are those corresponding to the general formula (I):

wherein R is¹⁰¹、R¹⁰²、R¹⁰³And R¹⁰⁴At least one of which is selected from aliphatic groups having from about 8 to about 30 carbon atoms or aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl groups having up to about 22 carbon atoms, R¹⁰¹、R¹⁰²、R¹⁰³And R¹⁰⁴The remaining groups in (a) are independently selected from aliphatic groups having from about 1 to about 22 carbon atoms or aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl groups having up to about 22 carbon atoms; x^-Is salifying anionSuch as those selected from the group consisting of halide (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkylsulfate, and alkylsulfonate. In addition to carbon and hydrogen atoms, aliphatic groups may also contain ether linkages and other groups such as amino groups. Longer chain aliphatic groups, such as those of about 12 carbon atoms or more, may be saturated or unsaturated. R¹⁰¹、R¹⁰²、R¹⁰³And R¹⁰⁴Independently selected from C₁To about C₂₂Alkyl groups are preferred. Non-limiting examples of cationic surfactants useful in the present invention include materials having the following CTFA designation: quaternary ammonium-8, Quaternary ammonium-14, Quaternary ammonium-18 dimethyl sulfate, Quaternary ammonium-24, and mixtures thereof.

Among the cationic surfactants of the general formula (I), preferred are those comprising at least one alkyl group having at least 16 carbon atoms in the molecule. Non-limiting examples of the above preferred cationic surfactants include: behenyl trimethyl ammonium chloride available from Croda under the trade name incroquat tmc-80 and Sanyo Kasei under the trade name ECONOL TM 22; cetyltrimethylammonium chloride, available for example under the trade name CA-2350 from Nikko Chemical, hydrogenated tallow alkyl trimethyl ammonium chloride, dialkyl (14-18) dimethyl ammonium chloride, ditallow alkyl dimethyl ammonium chloride, dihydrogenated tallow alkyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dicetyl dimethyl ammonium chloride, di (docosyl/eicosyl) dimethyl ammonium chloride, di (docosyl) dimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, stearyl propylene glycol phosphate dimethyl ammonium chloride, stearyl amidopropyl dimethyl benzyl ammonium chloride, stearyl amidopropyl dimethyl (myristyl acetate) ammonium chloride, and N- (stearyl cholestyryl formyl methyl) pyridinium chloride.

Also preferred as cationic surfactants are hydrophilically substituted cationic surfactants wherein at least one substituent contains one or more aromatic, ether, ester, amide or amino moietiesAs substituents or as links in the radical chain, in which R¹⁰¹To R¹⁰⁴At least one of the radicals containing one or more hydrophilic moieties selected from alkoxy (preferably C)₁To C₃Alkoxy), polyoxyalkylene (preferably C)₁To C₃Polyoxyalkylene), alkylamido, hydroxyalkyl, alkyl ester, and combinations thereof. Preferably, the hydrophilically substituted cationic surfactant comprises from about 2 to about 10 nonionic hydrophile moieties within the above ranges. Preferred hydrophilically substituted cationic surfactants include those of the following formulas (II) to (VIII):

chemical formula (II)

Wherein n is¹From about 8 to about 28, m¹+m²Is from about 2 to about 40, Z¹Is a short-chain alkyl radical, preferably C₁-C₃Alkyl, more preferably methyl, or (CH)₂CH₂O)_m3H, wherein m¹+m²+m³Is from about 10 to about 60, and X^-Is a salt-forming anion as defined above;

chemical formula (III)

Wherein n is²Is from about 1 to about 5, R¹⁰⁵、R¹⁰⁶And R¹⁰⁷Is independently C₁-C₃₀Alkyl radical, the remainder being CH₂CH₂OH，R¹⁰⁸、R¹⁰⁹And R¹¹⁰Is independently C₁-C₃₀Alkyl radical, the remainder being CH₂CH₂OH, and X^-Is a salt-forming anion as defined above;

chemical formula (IV)

Chemical formula (V)

Wherein independently for formulae (IV) and (V), Z²Is an alkyl group, preferably C₁-C₃Alkyl, more preferably methyl; z³Being short-chain hydroxyalkyl (C)₁-C₃) Preferably hydroxymethyl or hydroxyethyl; n is³And n⁴Independently an integer from about 2 to about 4 (inclusive of 2 and 4), preferably from about 2 to about 3 (inclusive of 2 and 3), more preferably 2; r¹¹¹And R¹¹²Independently is a substituted or unsubstituted hydrocarbyl group, preferably C₁₂To C₂₀An alkyl or alkenyl group; and X^-Is a salt-forming anion as defined above;

chemical formula (VI)

Wherein R is¹¹³Is a hydrocarbon radical, preferably C₁-C₃Alkyl, more preferably methyl, Z⁴And Z⁵Independently a short chain hydrocarbyl group, preferably C₂-C₄Alkyl or alkenyl, more preferably ethyl, m⁴Is from about 2 to about 40, preferably from about 7 to about 30, and X^-Is a salt-forming anion as defined above;

chemical formula (VII)

Wherein R is¹¹⁴And R¹¹⁵Independently is C₁-C₃Alkyl, preferably methyl, Z⁶Is C₁₂-C₂₂A hydrocarbyl, alkylcarboxyl or alkylamido group, a is a protein, preferably collagen, keratin, milk protein, silk protein, soy protein, wheat protein, or hydrolyzed forms thereof; and X^-Is a salt-forming anion as defined above;

chemical formula (VIII)

Wherein n is⁵Is 2 or 3, R¹¹⁶And R¹¹⁷Independently is C₁-C₃A hydrocarbon radical, preferably methyl, and X^-Is a salt-forming anion as defined above. Non-limiting examples of hydrophilically substituted cationic surfactants useful in the present invention include those having the following CTFA designation: quaternary ammonium-16, Quaternary ammonium-26, Quaternary ammonium-27, Quaternary ammonium-30, Quaternary ammonium-33, Quaternary ammonium-43, Quaternary ammonium-52, Quaternary ammonium-53, Quaternary ammonium-56, Quaternary ammonium-60, Quaternary ammonium-61, Quaternary ammonium-62, Quaternary ammonium-70, Quaternary ammonium-71, quaternary ammonium-75, Quaternary ammonium-76 hydrolyzed collagen, Quaternary ammonium-77, Quaternary ammonium-78, Quaternary ammonium-79 hydrolyzed collagen, Quaternary ammonium-79 hydrolyzed keratin, Quaternary ammonium-79 hydrolyzed milk protein, Quaternary ammonium-79 hydrolyzed silk protein, Quaternary ammonium-79 hydrolyzed soy protein and Quaternary ammonium-79 hydrolyzed wheat protein, Quaternary ammonium-80, Quaternary ammonium-81, Quaternary ammonium-82, Quaternary ammonium-83, Quaternary ammonium-84, and mixtures thereof.

Highly preferred hydrophilically substituted cationic surfactants include dialkylaminoethylhydroxyethyl monomethylammonium salts, dialkylaminoethyldimethylammonium salts, and mixtures thereof; for example, commercially available under the following trade names: VARISOFT 110, VARISOFT 222, VARIQUATK1215, and VARIQUAT638, available from Witco Chemical; MACKPRO KLP, MACKPRO WLW, MACKPROMLP, MACKPRO NSP, MACKPRO NLW, MACKPRO WWP, MACKPRONLP, MACKPRO SLP, purchased from McIntyre; ETHOQUAD 18/25, ETHOQUADO/12PG, ETHOQUAD C/25, ETHOQUAD S/25, and ETHODUOQUAD, available from Akzo; DEHYQUAT SP, available from Henkel and ATLAS G265, available from ICI America.

Salts of primary, secondary and tertiary fatty amines are also suitable cationic surfactants. The alkyl groups of these amines preferably have from about 12 to about 22 carbon atoms and may be substituted or unsubstituted. Particularly useful are amido-substituted tertiary fatty amines. Such amines useful herein include stearamidopropyl dimethylamine, stearamidopropyl diethylamine, stearamidoethyl dimethylamine, palmitamidopropyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl diethylamine, arachidamidoethyl dimethylamine, diethylaminoethyl stearamide. Also suitable are dimethylstearylamine, dimethylsoyamine, soyamine, tetradecylamine, tridecylamine, ethylstearylamine, N-tallow propylenediamine, ethoxylated (with 5 moles of ethylene oxide) stearylamine, dihydroxyethylstearylamine and eicosyldidodecylamine. These amines are typically used in combination with an acid to provide the cationic species. Preferred acids useful herein include L-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, citric acid, L-glutamic acid hydrochloride, L-aspartic acid, and mixtures thereof; more preferred are L-glutamic acid, lactic acid and citric acid. Cationic amine surfactants included among those useful in the present invention are disclosed in U.S. Pat. No. 4,275,055.

Protonatable amines with H from acids⁺Is preferably from about 1: 0.3 to 1: 1.2, and more preferably from about 1: 0.4 to about 1: 1.1.

b. Aliphatic compounds

The fatty compound gel network phase comprises a fatty compound present in an amount of from about 0.01% to about 20%, preferably from about 0.1% to about 15%, more preferably from about 0.2% to about 10%, by weight of the fatty compound gel network. The gel matrix may be formed from the fatty compound, and/or the cationic surfactant compound may be first mixed with, suspended in, and/or dissolved in water when forming the gel matrix.

The fatty compounds useful herein have a melting point of 25 ℃ or higher and are selected from the group consisting of fatty alcohols, fatty acids, and mixtures thereof. It will be appreciated that the compounds disclosed in this section of the specification may in some cases fall into more than one category, for example certain fatty alcohol derivatives may also be classified as fatty acid derivatives. However, the specified classifications are not intended to be limiting to that particular compound, but are made for convenience of classification and nomenclature. Furthermore, it will be appreciated that certain compounds having the desired number of carbon atoms may have a melting point below 25 ℃ depending on the number and position of the double bonds and the length and position of the branches. Such low melting compounds would not be included in this section. Non-limiting examples of high melting point compounds can be found in "International Cosmetic Ingredient Dictionary", fifth edition, 1993; and "CTFA Cosmetic Ingredient Handbook", second edition, 1992.

Fatty alcohols useful herein are those having from about 14 to about 30 carbon atoms, preferably from about 16 to about 22 carbon atoms. These fatty alcohols are saturated and may be straight chain alcohols or branched chain alcohols. Non-limiting examples of fatty alcohols include cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof.

Fatty acids useful herein are those having from about 10 to about 30 carbon atoms, preferably from about 12 to about 25 carbon atoms, and more preferably from about 16 to about 22 carbon atoms. These fatty acids are saturated and may be straight chain acids or branched chain acids. Also included are diacids, triacids, and other polyacids that meet the requirements herein. Also included herein are salts of these fatty acids. Non-limiting examples of fatty acids include lauric acid, palmitic acid, stearic acid, behenic acid, sebacic acid, and mixtures thereof.

High purity single compound aliphatic compounds are preferred. Single compounds of pure fatty alcohols selected from pure cetyl alcohol, stearyl alcohol and behenyl alcohol are preferred. By "pure" herein is meant that the compound is at least about 90% pure, preferably at least about 95% pure. These single compounds of high purity provide good rinsability on the hair when the consumer rinses off the composition.

2. Hydrophobic gel network

Another embodiment of the present invention may comprise a hydrophobic gel network. The anhydrous gel is based on a variety of hydrocarbons and esters. The gelling agent is a combination of ethylene/propylene/styrene copolymer and butylene/ethylene/styrene copolymer. Various gelled hydrocarbon solvents can be used to deliver conditioning ingredients onto the hair surface. The hydrocarbon solvent may be volatile or non-volatile. The hydrophobic gel network may comprise a hydrophobic solvent thickened with a polymeric gelling agent. Suitable hydrocarbon gels are available from Penereco Corporation under the tradename Versagel.

Examples of gels based on non-volatile solvents are Versagel materials, including Versagel M (based on mineral oil), Versagel ME (based on hydrogenated polyisobutene), Versagel MP (based on isopropyl palmitate), Versagel MC (based on isohexadecane). An example of a volatile hydrocarbon gel is Versagel MD (isododecane based).

3. Combination of fatty compound gel network and hydrophobic gel network:

another embodiment of the invention may comprise a fatty compound gel network in a hydrophobic gel network or a hydrophobic gel network in a fatty compound gel network. As mentioned above, a suitable example of this phase is a fatty alcohol comprising hair conditioning ingredients, which is dispersed in a hydrophobic gel network. The hydrophobic gel network may also comprise hair conditioning ingredients. The ratio of fatty compound gel network to hydrocarbon gel network preferably ranges from about 95: 5 to about 5: 95, more preferably from about 90: 10 to about 10: 90, and even more preferably from about 80: 20 to about 20: 80.

4. Siloxanes or siloxane gels

Another embodiment of the present invention may comprise a silicone or silicone gel. The silicones described for use in water-in-oil emulsions are suitable for use in the benefit phase as long as they meet the viscosity requirements. High molecular weight silicones and silicone gums are useful because of their inherent conditioning effect on hair. Examples of high molecular weight polydimethylsiloxanes are Dow Corning 200 fluids (0.06, 0.3 and 0.6 m)²S (60000, 300000 and 600000 centistokes)). The low molecular weight siloxane may be gelled, added to the high molecular weight siloxane, or a combination of both. An example of a suitable silicone gelling agent is a silicone elastomer, such as Dow Corning 9040. Silicones can be volatile or non-volatile, with the preferred silicone depending on the desired benefit.

C. Stability enhancing agent

1. Lamellar structuring agents and polymeric structuring agents

The compositions of the present invention preferably comprise from about 0.1% to about 10% by weight of a structuring agent in the cleansing phase, which functions in the composition to form a lamellar phase. It is believed that the lamellar phase may enhance the interfacial stability between the cleansing phase and the benefit phase.

Suitable structuring agents include fatty acids or ester derivatives thereof, fatty alcohols, or glyceryl tri (hydroxystearate), polycare 133. More preferably, the structuring agent is lauric acid or glycerol tris (hydroxystearate).

In a preferred embodiment of the present invention, the surfactant composition used in the cleansing phase exhibits non-newtonian shear thinning behavior (referred to herein as a free-flowing composition). These cleaning compositions comprise water, at least one anionic surfactant, an electrolyte and at least one alkanolamide. It has been found that by using a cleansing phase that exhibits non-newtonian shear thinning behavior, the stability of the resulting personal cleansing composition can be improved.

If present, the alkanolamide has the general structure:

wherein R is C₈To C₂₄Or in some embodiments preferably C_{8 to}C₂₂Or in other embodiments C_{8 to}C₁₈Saturated or unsaturated, linear or branched aliphatic radical, R₁And R₂Are identical or different C₂-C₄A linear or branched aliphatic group, x ═ 0 to 10; y is 1 to 10, and wherein the sum of x and y is less than or equal to 10.

When present in the composition, the alkanolamides are present in an amount of from about 0.1% to about 10% by weight, and in some embodiments preferably from about 2% to about 5% by weight. Some preferred alkanolamides include Cocamide MEA (cocomonoethanolamide) and Cocamide MIPA (cocomonoisopropanolamide). Co-surfactants selected from the classes of non-ionic, amphoteric and/or zwitterionic surfactants or cationic surfactants may optionally be incorporated.

In addition, the surfactant phase may comprise a polymer and an inorganic structuring agent. Anionic and nonionic structuring agents are preferred. Useful herein are vinyl polymers such as crosslinked acrylic acid polymers having the CTFA name carbomer, cellulose derivatives and modified cellulose polymers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, polyvinylpyrrolidone, polyvinyl alcohol, guar gum, karaya gum, starch-based polymers (rice, corn, potato, wheat), carrageenan, pectin, agar, quince seed (quince seed), algin (algae extract), microbial polymers such as dextran, succinoglucan, pullulan, starch-based polymers such as carboxymethyl starch, methylhydroxypropyl starch, alginic acid-based polymers such as sodium alginate, propylene glycol alginate, acrylate polymers such as sodium polyacrylate, Polymethacrylates, polyacrylamides, polyethyleneimines, and inorganic water-soluble substances such as bentonite, magnesium aluminum silicate, laponite, hectorite, and anhydrous silicic acid.

Commercially available viscosity modifiers that are highly useful herein include carbomers, all available under the trade names Carbopol934, Carbopol 940, Carbopol 950, Carbopol 980 and Carbopol 981, all available from b.f. goodrich Company, acrylate/steareth methacrylate copolymer, all available under the trade name Aculyn (especially Aculyn 46) from Rohm and Hass, nonoxy (nonoxynyl) hydroxyethyl cellulose, all available under the trade name AMERCELL polyethylene HM-1500, all available under the trade name Amerchol, methyl cellulose, all available under the trade name BENECEL, hydroxyethyl cellulose, all available under the trade name naosol, hydroxypropyl cellulose, all available under the trade name zucel, cetyl hydroxyethyl cellulose, all available under the trade name POLYSURF 67, all available under the trade names Hercules, ethylene oxide and/or propylene oxide based POLYMERs, all available under the trade names bowax PEGs, polyethylene waxes and srhcons, all available under the trade names Amerchol.

Other optional structuring agents include crystallization agents which may be classified as acyl derivatives, long chain amine oxides, and mixtures thereof. These structuring agents are described in U.S. Pat. No. 4,741,855. These preferred structuring agents include ethylene glycol esters of fatty acids preferably having from about 16 to about 22 carbon atoms. Other long chain acyl derivatives include long chain esters of long chain fatty acids (e.g., stearyl stearate, cetyl palmitate, etc.); long chain esters of long chain alkanolamides (e.g., stearyl diethanolamine distearate, stearyl monoethanolamine stearate); and glycerides (e.g., glyceryl distearate, trihydroxystearin, tribehehenate (tribehenin)), a commercially available example of which is Thixin R, available from Rheox, inc. In addition to the preferred materials listed above, long chain acyl derivatives, ethylene glycol esters of long chain carboxylic acids, long chain amine oxides, and alkanolamides of long chain carboxylic acids may also be used as structuring agents.

Other long chain acyl derivatives suitable for use as structuring agents include N, N-dihydrocarbylaminobenzoic acid and water-soluble salts thereof (e.g., Na, K), especially N, N-di (hydrogenated) C's of this type₁₆、C₁₈And tallow amido benzoic acids, which are commercially available from the Stepan Company.

Examples of suitable long chain amine oxides for use as structuring agents include alkyl (C)₁₆-C₂₂) Dimethylamine oxides, such as stearyl dimethylamine oxide. Other suitable structuring agents include primary amines having a fatty alkyl moiety of at least about 16 carbon atoms, examples of which include palmitylamine or octadecylamine, and secondary amines having two fatty alkyl moieties each having at least about 12 carbon atoms, examples of which include dipalmitylamine or di (hydrogenated tallow) amine. Other suitable structuring agents also include di (hydrogenated tallow) phthalic acid amide and crosslinked maleic anhydride-methyl vinyl ether copolymers.

The electrolyte, if used, may be added to the composition itself, or may be formed in situ by counter-ions included in one of the starting materials. The electrolyte preferably comprises anions including phosphate, chloride, sulfate or citrate and cations including sodium, ammonium, potassium, magnesium or mixtures thereof. Some preferred electrolytes are sodium or ammonium chloride or sulfate.

The electrolyte should be present in an amount to facilitate formation of a free flowing composition. Typically, this amount is from about 0.1% to about 15% by weight, preferably from about 1% to about 6% by weight of the cleansing phase, but can vary if desired.

2. Density regulator

In order to further improve the stability under stress conditions (such as high temperature and vibration), it is preferable to adjust the densities of the respective phases so that they are substantially equal. This is called density matching. To achieve density matchingThe low density microspheres are added to the denser phase of the composition. The low density microspheres used to reduce the overall density of the cleansing phase are particles having a density of less than about 0.7g/cm³Preferably less than about 0.2g/cm³More preferably less than about 0.1g/cm³And even more preferably less than about 0.05g/cm³. The low density microspheres are generally less than about 200 μm to about 100 μm in diameter, and even more preferably less than about 40 μm. Preferably, the density difference between the cleansing phase and the benefit phase is less than about 0.30g/cm³Preferably less than about 0.15g/cm³More preferably, the density difference is less than about 0.10g/cm³And even more preferably have a density differential of less than about 0.05g/cm³And even more preferably a density of less than about 0.01g/cm³。

The microspheres are made of any suitable inorganic or organic material that is compatible for use on the skin, i.e., non-irritating and non-toxic.

Expandable microspheres made of thermoplastic material are known and can be obtained according to the processes described, for example, in patents and patent applications EP-56219, EP-348372, EP-486080, EP-320473, EP-112807 and U.S. Pat. No. 3,615,972.

The internal cavity of the expandable hollow microspheres contains a gas, which may be a hydrocarbon such as isobutane or isopentane, or alternatively air. Among the hollow microspheres which may be used, particular mention should be made of the one sold under the trademark EXPANCEL^®(thermoplastic expandable microspheres) are commercially available from Akzo Nobel Company, especially those of DE (dry) or WE (hydrated) grade. The embodiment comprises the following steps: expancel^®091 DE 40d30、Expancel^®091 DE 80 d30、Expancel^®051 DE 40 d60、Expancel^®091 WE40 d24、Expancel^®053 DE 40 d20。

Representative microspheres derived from inorganic materials include, for example, "Qcel^®Hollow microspheres "and" EXTENDSOSHERES^TMCeramic hollow spheres ", both available from PQ Corporation. The embodiment is as follows: qcel^®300、Qcel^®6019、Qcel^®6042S。

Just as the addition of low density microspheres to the denser phase of the present invention improves vibrational stability, a high density material can be added to the less dense phase to increase its density, with the same effect on stability.

The density of each phase was measured with a densitometer. The density is calculated in g/cc. When matching densities, the densities of the two phases need not be substantially different and should preferably be within +/-15%, more preferably within +/-10%, even more preferably within +/-5%.

D. Aqueous carrier

The compositions of the present invention may comprise an aqueous carrier. They preferably comprise from about 50% to about 99.8% by weight of water. The aqueous phase may optionally include other liquids, water-miscible or water-soluble solvents such as lower alkyl alcohols, e.g. C₁-C₅Alkyl monoalcohols, preferably C₂-C₃An alkyl alcohol. However, the liquid fatty alcohol must be miscible in the aqueous phase of the composition. The fatty alcohol may be naturally miscible in the aqueous phase or may be made miscible by the use of co-solvents or surfactants.

E. Additional Components

The compositions herein may comprise a variety of additional components suitable to make the compositions more cosmetically or aesthetically acceptable or to provide them with additional use benefits. Additional ingredients may be present in either the cleansing phase or the benefit phase.

1. Wetting agents and solutes

Suitable benefit agents are one or more humectants and solutes. A variety of humectants and solutes can be employed and can be present in an amount of from about 0.1% to about 50%, preferably from about 0.5% to about 35%, more preferably from about 2% to about 20%, by weight of non-volatile organics having a solubility of at least 5 parts in 10 parts water. Preferred water-soluble organic materials are selected from polyols having the following structure:

R1-O(CH₂-CR2O)_nH

wherein R1 ═ H, C1-C4 alkyl; r2 ═ H, CH₃And n is 1 to 200; C2-C10 alkanediols, guanidines, glycolic acid and glycolate salts (e.g., ammonium salts and tetraalkylammonium salts), lactate salts (e.g., ammonium salts and tetraalkylammonium salts), polyhydroxy alcohols (e.g., sorbitol, glycerol, hexanetriol, propylene glycol, hexanediol, etc.), polyethylene glycols, sugars and starches, sugar and starch derivatives (e.g., alkoxylated glucose), panthenol (including D-, L-and D, L-configurations), pyrrolidone carboxylic acid, hyaluronic acid, lactamide monoethanolamine, acetamide monoethanolamine, urea, and salts having the general formula (HOCH)₂CH₂)_xNH_yAnd (ii) ethanolamine of (i) (wherein x is 1-3; y is 0-2, and x + y is 3) and mixtures thereof. Preferred polyols are selected from the group consisting of glycerol, polyoxypropylene (1) glycerol and polyoxypropylene (3) glycerol, sorbitol, butylene glycol, propylene glycol, sucrose, urea and triethanolamine.

2. Water-soluble nonionic polymers

The compositions of the present invention may comprise from about 0.1% to about 10%, more preferably from about 0.2% to about 5%, and even more preferably from about 0.5% to about 3% by weight of a water-soluble nonionic polymer.

The polymers of the present invention are characterized by the general formula:

wherein R is selected from the group consisting of H, methyl, and mixtures thereof. When R is H, these materials are polymers of ethylene oxide, also known as polyethylene oxide, polyoxyethylene and polyethylene glycol. When R is methyl, these materials are polymers of propylene oxide, also known as polypropylene oxides, polyoxypropylenes, and polypropylene glycols. When R is methyl, it is also understood that various positional isomers of the resulting polymer may be present. In the above structure, n has an average value of about 2,000 to about 14,000, preferably about 5,000 to about 9,000, more preferably about 6,000 to about 8,000.

The polyethylene glycol polymer useful herein is particularly preferably PEG-2M, wherein R is H and n has an average value of about 2,000(PEG 2-M is also known as Polyox WSR)^®N-10, available from Union carbide, also known as PEG-2,000); PEG-5M, wherein R is H and n has an average value of about 5,000(PEG 5-M is also known as Polyox WSR)^®N-35 and Polyox WSR^®N-80, both available from Union Carbide, also known as PEG-5,000 and Polyethylene Glycol 300,000); PEG-7M, wherein R is H and n has an average value of about 7,000(PEG 7-M is also known as PolyoxWSR)^®N-750 from Union Carbide); PEG-9M, wherein R is H and n has an average value of about 9,000(PEG 9-M is also known as Polyox WSR)^®N-3333 from Union carbide); PEG-14M, wherein R is H and n has an average value of about 14,000(PEG 14-M is also known as Polyox WSR)^®N-3000 from Union Carbide). Other useful polymers include polypropylene glycol and mixed polyethylene/polypropylene glycols.

3. Styling polymers

The compositions of the present invention may comprise a styling polymer. The compositions herein generally comprise from about 0.1% to about 15%, preferably from 0.5% to about 8%, more preferably from about 1% to about 8%, by weight of the composition, of a styling polymer. The use of higher or lower levels of polymer is not excluded as long as an effective amount thereof is used to provide adhesive or film-forming properties to the composition and the composition can be formulated and effectively used for its intended purpose.

These styling polymers provide hair styling performance to the compositions of the present invention by providing polymer deposition on the hair after application. As is known to those skilled in the art, the polymer deposited on the hair has viscosity and cohesive strength and effects styling primarily by forming bonds between the hair fibers upon drying.

Many such polymers are known in the art, including water-soluble and water-insoluble organic polymers and water-insoluble silicone graft polymers, all of which are suitable for use in the compositions of the present invention, provided that they also have the requisite characteristics or properties described below. Such polymers may be prepared by conventional or other known polymerization techniques well known in the art, one of which examples includes free radical polymerization.

The weight average molecular weight of the styling polymer should be at least about 20,000, preferably greater than about 25,000, more preferably greater than about 30,000, and most preferably greater than about 35,000. There is no upper limit to molecular weight, except that the utility of the invention is limited for practical reasons, such as processing, aesthetic characteristics, formulation properties, etc. Typically, the weight average molecular weight will be less than about 10,000,000, more typically less than about 5,000,000, and typically less than about 2,000,000. The weight average molecular weight is preferably between about 20,000 and about 2,000,000, more preferably between about 30,000 and about 1,000,000, and most preferably between about 40,000 and about 500,000.

Suitable silicone grafted polymers are also disclosed in European patent application 90307528.1, published as European patent application 0408311A 2 in 1991, month 1, day 11, U.S. Pat. No. 5,061,481, published in 1991, Suzuki et al, day 29, month 10, month 481, published in 1992, month 4, day 21, U.S. Pat. No. 5,106,609, published in 1992, month 3, day 31, U.S. Pat. No. 5,100,658, published in 1992, month 3, day 31, U.S. Pat. No. 5,100,657, published in 1992, month 3, day 14, U.S. Pat. No. 5,104,646, published in 1991, month 8, day 27, U.S. Ser. No. 07/758,319, published in Torgson et al, month 8, month 27, and U.S. Ser. No. 07/758,320, published in 1991, day 27.

Suitable cationic polymers include polyquaternium-4 (Celquat H-100; L200-supplier National Starch); polyquaternium-10 (Celquat SC-240C; SC-230M-supplier National Starch); (UCARE Polymer series-JR-125, JR-400, LR-400, LR-30M, LK, supplier Amerchol); polyquaternium-11 (Gafquat 734; 755N-supplier ISP); polyquaternium-16 (Luviquat FC 370; FC 550; FC 905; HM-552 supplier BASF); PVP/dimethylaminoethyl methacrylate (copolymer 845; 937; 958-ISP supplier); vinylcaprolactam/PVP/dimethylaminoethyl methacrylate copolymer (Gaffix VC-713; H2OLD EP-1-supplier ISP); chitosan (Kytamer L; Kytamer PC-supplier Amerchol); polyquaternium-7 (Merquat 550-supplier Calgon); polyquaternium-18 (Mirapol AZ-1 supplied by Rhone-Poulenc); polyquaternium-24 (Quatrisoft Polymer LM-200-supplier Amerchol); polyquaternium-28 (Gafquat HS-100-supplier ISP); polyquaternium-46 (Luviquat Hold-supplier BASF); and chitosan glycolate (HydagenCMF; CMFP-supplier Henkel); hydroxyethyl cetyl diammonium phosphate (Luviquat MonoCP-supplier BASF); and guar hydroxypropyltriammonium chloride (Jaguar C series-13S, -14S, -17, 162, -2000, Hi-CARE 1000 supplier Rh * ne-Poulenc).

Suitable amphoteric polymers include octyl acrylate/butylaminoethyl methacrylate copolymers (Amphomer 28-4910, Amphomer LV-7128-4971, Lovocryl-4728-4947-National Starch), and methacryloyl ethyl betaine/methacrylate copolymers (Diadormer series, supplier Mitsubishi).

Partially zwitterionic polymers are also useful. They have a positive charge over a wide pH range but contain acidic groups that are negatively charged only at basic pH. The polymer is positively charged at lower pH and neutral (both negative and positive) at higher pH. The zwitterionic polymer may be selected from cellulose derivatives, wheat derivatives and chitin derivatives as known in the art. Non-limiting examples of zwitterionic polymers useful herein include polyquaternium-47 (Merquat 2001-supplier Calgon (zwitterionic copolymer of acrylic acid, methacrylamidopropyltrimethylammonium chloride, and methyl acrylate)); carboxybutylchitosan (Chitolam NB/101-sold by Pilot Chemical Company, manufactured by Lamberti); and dicarboxyethyl chitosan (N- [ (3 ' -hydroxy-2 ', 3 ' -dicarboxy) ethyl ] - β -D- (1, 4) -glucosamine) (available from Amerchol, e.g., CHITOLAM NB/101).

Useful nonionic polymers include PVP or polyvinylpyrrolidone (PVP K-15, K-30, K-60, K-90, K-120-supplier ISP) (Luviskol K series 12, 17, 30, 60, 80, & 90-supplier BASF); PVP/VA (PVP/VA series S-630; 735, 635, 535, 335, 235-supplier ISP) (Luviskol VA) PVP/DMAPA acrylate copolymer (Styleze CC-10-supplier ISP); PVP/VA/vinyl propionate copolymer (Luviskol VAP 343E, VAP 343I, VAP343 PM-supplier BASF); hydroxyethyl cellulose (Cellosize HEC-supplier Amerchol); and hydroxypropyl guar resin (Jaguar HP series-8, -60, -105, -120-supplier Rh * ne-Poulenc).

A wide variety of natural, semi-natural and synthetic styling polymers are useful herein, see encyclopedia of polymers and thiechers, Cosmetic & Toiletries, Vol.117, No. 12, 12.2002, pp.67-120 for suitable styling polymers.

4. Liquid fatty alcohols and fatty acids

Liquid fatty alcohols useful herein include those having from about 10 to about 30 carbon atoms, preferably from 12 to about 25 carbon atoms, more preferably from about 16 to about 22 carbon atoms. These liquid fatty alcohols may be straight or branched chain alcohols, and may be saturated or unsaturated alcohols. Solid fatty compounds are those fatty alcohols which are solid when they are in a substantially pure state at 25 ℃, while liquid fatty alcohols are those fatty alcohols which are liquid at 25 ℃. Non-limiting examples of such compounds include oleyl alcohol, palmitoleic alcohol, isostearyl alcohol, isocetyl alcohol, and mixtures thereof. While poly fatty alcohols are useful herein, mono fatty alcohols are preferred.

Fatty acids useful herein include those having from about 10 to about 30 carbon atoms, preferably from about 12 to about 25 carbon atoms, more preferably from about 16 to about 22 carbon atoms. These fatty acids may be straight or branched chain acids and may be saturated or unsaturated. Suitable fatty acids include, for example, oleic acid, linoleic acid, isostearic acid, linolenic acid, ethyl linolenic acid, arachidonic acid, ricinoleic acid, and mixtures thereof.

Fatty acid derivatives and fatty alcohol derivatives are defined herein to include, for example, esters of fatty acids, alkoxylated fatty alcohols, and mixtures thereof. Non-limiting examples of fatty acid derivatives and fatty alcohol derivatives include, for example, methyl linoleate, ethyl linoleate, isopropyl linoleate, isodecyl oleate, isopropyl oleate, ethyl oleate, octyldodecyl oleate, oleyl oleate, decyl oleate, butyl oleate, methyl oleate, octyldodecyl stearate, octyldodecyl isostearate, octyldodecyl isopalmitate, octyl isononanoate, octyl pelargonate, hexyl isostearate, isopropyl isostearate, isodecyl isononanoate, isopropyl isostearate, ethyl isostearate, methyl isostearate, and oleyl polyoxyethylene ether-2.

Commercially available liquid fatty alcohols and derivatives thereof useful herein include oleyl Alcohol, available under the trade name UNJECOL 90BHR from Shin-nihon Rika, various liquid esters, available under the trade name SCHERCEMOL series, available from Scher, hexyl isostearate, available under the trade name HIS, and isopropyl isostearate, available under the trade name ZPIS, available from Kokyu Alcohol.

5. Cationic polymer conditioning agents

The compositions of the present invention may also comprise one or more cationic polymeric conditioning agents. The cationic polymer conditioning agent is preferably water soluble. The range of use of the cationic polymer is typically the same as that of the cationic surfactant disclosed above.

The term "water-soluble" cationic polymer refers to a polymer that is sufficiently soluble in water at 25 ℃ to form a substantially clear solution to the naked eye at a concentration of 0.1% in water (distilled or equivalent). Preferably the polymer will dissolve sufficiently to form a substantially clear solution at a concentration of 0.5%, more preferably at a concentration of 1.0%.

The cationic polymers herein generally have a weight average molecular weight of at least about 5,000, typically at least about 10,000, and less than about 1 million. Preferably, the molecular weight is from about 100,000 to about 2 million. The cationic polymers typically have-cationic nitrogen-containing moieties such as quaternary ammonium or cationic amino moieties, and mixtures thereof.

The cationic charge density is preferably at least about 0.1 meq/gram, more preferably at least about 0.5 meq/gram, even more preferably at least about 1.1 meq/gram, and even more preferably at least about 1.2 meq/gram. The average molecular weight of such suitable cationic polymers is generally between about 10,000 and about 1 million, preferably between about 50,000 and about 5 million, more preferably between about 100,000 and about 3 million. One skilled in the art will recognize that the charge density of the amino group-containing polymer may vary depending on the pH and the isoelectric point of the amino group. The charge density should be within the pH limits to be used as described above.

Any anionic counterion can be used in the cationic polymer so long as it meets the water solubility criteria. Suitable counterions include halide (e.g., Cl, Br, I or F, preferably Cl, Br or I), sulfate and methylsulfate. Since this list is not unique, other counterions can also be used.

The nitrogen-containing cationic moiety is typically present as a substituent on a portion of the total monomer units of the cationic hair conditioning polymer. Thus, the cationic polymer can include copolymers, terpolymers, etc. of quaternary ammonium or cationic amine-substituted monomer units and other non-cationic units (referred to herein as spacer monomer units). These polymers are known in The art and many variations thereof can be found in CTFA Cosmetic ingredient dictionary, 3 rd edition, Estrin, crossey and Haynes, eds (The Cosmetic, Toiletry, and france Association, inc., Washington, d.c., 1982).

Suitable cationic polymers include, for example, copolymers of vinyl monomers having cationic amine or quaternary ammonium functionality with water-soluble spacer monomers such as acrylamide, methacrylamide, alkyl and dialkyl acrylamides, alkyl and dialkyl methacrylamides, alkyl acrylates, alkyl methacrylates, vinyl caprolactone and vinyl pyrrolidone. The alkyl and dialkyl substituted monomers preferably have C₁-C₇Alkyl, more preferably C₁-C₃An alkyl group. Other suitable spacer monomers include vinyl esters, vinyl alcohol (made by hydrolysis of polyvinyl acetate), maleic anhydride, propylene glycol, and ethylene glycol.

The cationic amine can be a primary, secondary, or tertiary amine depending on the particular species and pH of the composition. In general, secondary and tertiary amines are preferred, with tertiary amines being particularly preferred.

Amine-substituted vinyl monomers can be polymerized in the amine form and then optionally converted to ammonium by quaternization. The amines may also be similarly quaternized after formation of the polymer. For example, the tertiary amine functional group is quaternized by reaction with a salt of the formula R 'X, wherein R' is a short chain alkyl group, preferably C₁-C₇Alkyl, more preferably C₁-C₃Alkyl, and X is an anion, which forms a water soluble salt with the quaternary ammonium.

Suitable cationic amino and quaternary ammonium monomers include, for example, vinyl compounds substituted with dialkylaminoalkyl acrylate, dialkylaminoalkyl methacrylate, monoalkylaminoalkyl acrylate, monoalkylaminoalkyl methacrylate, trialkyl methacryloxyalkyl ammonium salt, trialkyl acryloxyalkyl ammonium salt, diallyl quaternary ammonium salts, and vinyl quaternary ammonium monomers having cyclic cationic nitrogen-containing rings such as pyridinium, imidazolium salts, and quaternized pyrrolidone, for example, alkyl vinyl imidazolium salts, alkyl vinyl pyridinium salts, alkyl vinyl pyrrolidone salts. The alkyl portion of these monomers is preferably a lower alkyl such as C₁-C₃Alkyl, more preferably C₁And C₂An alkyl group. Suitable amine-substituted vinyl monomers for use herein include dialkylaminoalkyl acrylates, dialkylaminoalkyl methacrylates, dialkylaminoalkylacrylamides, and dialkylaminoalkyl methacrylamides, wherein the alkyl group is preferably C₁-C₇Hydrocarbyl, more preferably C₁-C₃An alkyl group.

The cationic polymers of the present invention may comprise a mixture of monomer units derived from amine and/or quaternary ammonium substituted monomers and/or compatible spacer monomers.

Suitable cationic hair conditioning polymers include, for example: copolymers of 1-vinyl-2-pyrrolidone and 1-vinyl-3-methylimidazolium salts (e.g., chloride salts) (known in the art as polyquaternium-16 by Cosmetic, toiletty, and Fragrance Association, "CTFA"), such as those available under the trade name LUVIQUAT (e.g., LUVIQUAT FC 370) from BASF Wyandotte corp; copolymers of 1-vinyl-2-pyrrolidone and dimethylaminoethyl methacrylate (known in the art as polyquaternium-11 by CTFA), such as that available under the trade name GAFQUAT (e.g., GAFQUAT 755N) from Gaf Corporation; polymers containing cationic diallyl quaternary ammonium, including, for example, dimethyldiallylammonium chloride homopolymer and copolymers of acrylamide and dimethyldiallylammonium chloride, referred to in the art (CTFA) as polyquaternium 6 and polyquaternium 7, respectively; and mineral acid salts of aminoalkyl esters of homopolymers and copolymers of unsaturated carboxylic acids having from about 3 to about 5 carbon atoms, as described in U.S. Pat. No. 4,009,256.

Other cationic polymers that can be used include polysaccharide polymers, such as cationic cellulose derivatives and cationic starch derivatives.

Cationic polysaccharide polymers suitable for use herein include those having the following formula:

wherein: a is an anhydroglucose residue, such as a starch or cellulose anhydroglucose residue; r is an alkylene oxide, polyoxyalkylene, or hydroxyalkylene group or combination thereof; r₁、R₂And R₃Independently an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, an alkoxyalkyl group, or an alkoxyaryl group, each group containing up to about 18 carbon atoms, and the total number of carbon atoms per cationic moiety (i.e., R)₁、R₂And R₃The sum of the number of carbon atoms) is preferably about 20 or less; and X is an anionic counterion. Suitable counterions includeHalide ions (e.g. Cl, Br, I or F, preferably Cl, Br or I), sulfate and methylsulfate. Since this list is not unique, other counterions can also be used.

The cationic cellulose can be its Polymer JR^®And LR^®A series of polymers are available from amerchol corp, a salt of hydroxyethyl cellulose reacted with trimethylammonium substituted epoxide, known in the art (CTFA) as polyquaternary ammonium 10. Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide, known in the art (CTFA) as polyquaternary ammonium 24. These materials are available under the trade name Polymer LM200^®Purchased from Amerchol corp.

Other cationic polymers that can be used include cationic guar derivatives such as guar hydroxypropyltrimonium chloride (available from Celanese Corp. in its Jaguar R series). Other materials include quaternary nitrogen-containing cellulose ethers (as described in U.S. Pat. No. 3,962,418) and copolymers of etherified cellulose and starch (as described in U.S. Pat. No. 3,958,581).

As discussed above, the cationic polymers herein are water soluble. But this does not mean that it must be dissolved in the composition. However, the cationic polymer is preferably soluble in the composition, or soluble in a complex coacervate phase in the composition formed by the cationic polymer and the anionic species. The cationic polymer may form a complex coacervate with an anionic surfactant or an anionic polymer (e.g., sodium polystyrene sulfonate) optionally added to the compositions herein.

6. Silicone conditioning agents

The compositions of the present invention may also include nonvolatile, soluble or insoluble silicone conditioning agents. By "soluble" is meant that the silicone conditioning agent is miscible with the aqueous carrier of the composition so as to be part of the same phase. By "insoluble" is meant that the silicone forms a separate, discontinuous phase from the aqueous carrier, such as in the form of an emulsion or suspension of silicone droplets.

The silicone hair conditioning agents for use in the compositions of the present invention are present in an amount of from about 0.05% to about 10%, preferably from about 0.1% to about 6%, more preferably from about 0.3% to about 5%, even more preferably from about 0.5% to about 3%, by weight of the composition.

Soluble silicones include silicone copolyols such as dimethicone copolyols, for example polyether silicone modified polymers such as polypropylene oxide, polyethylene oxide modified polydimethylsiloxanes, with the ethylene oxide and/or propylene oxide being present in an amount sufficient to provide solubility in the composition.

However, insoluble siloxanes are preferred. Insoluble silicone hair conditioners useful herein preferably have a viscosity of from about 0.001 to about 2m at 25 ℃²Per second (about 1,000 to about 2,000,000 centistokes), more preferably about 0.01 to about 1.8m²(about 10,000 to about 1,800,000), even more preferably about 0.1 to about 1.5m²(about 100,000 to about 1,500,000). Viscosity can be measured according to the glass capillary viscometer Method disclosed in 1970, 20.7.20.d. Dow Corning corporation Test Method CTM 0004.

Suitable insoluble non-volatile silicone fluids include polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes, polyether siloxane copolymers, and mixtures thereof. Other insoluble non-volatile silicone liquids having hair conditioning properties may also be used. The term "non-volatile" as used herein means that the siloxane has a boiling point of at least about 260 c, preferably at least about 275 c, and more preferably at least about 300 c. These materials exhibit very low or no significant vapor pressure at ambient conditions. The term "polysiloxane fluid" means a viscosity of less than about 1m at 25 ℃²Flowable silicone material per second (1,000,000 centistokes). Typically, the viscosity of the fluid at 25 ℃ will be between about 5X 10^-6To about 1m²A/s (about 5 to about 1,000,000 centistokes), preferably between about 1X 10^-5To about 0.3m²(ii) between about 10 and about 300,000 centistokes.

The silicone fluids herein also include polyalkyl or polyaryl siloxanes having the following structure:

wherein R is an alkyl or aryl group and x is an integer from about 7 to about 8,000. "A" represents a group that blocks the end of a siloxane chain.

The alkyl or aryl groups substituted on the silicone chain (R) or at the end of the silicone chain (a) may have any structure, so long as the resulting silicone remains fluid at room temperature, is hydrophobic, is non-irritating when applied to hair, is non-toxic, is not harmful, is compatible with the other components of the composition, is chemically stable under normal use and storage conditions, and is capable of being deposited on and conditions the hair.

Suitable a groups include methyl, methoxy, ethoxy, propoxy, and aryloxy. The two R groups on the silicon atom may represent the same group or different groups. Preferably both R groups represent the same group. Suitable R groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl. Preferred siloxanes are polydimethylsiloxane, polydiethylsiloxane and polymethylphenylsiloxane. Polydimethylsiloxane is particularly preferred.

Non-volatile polyalkylsiloxane fluids that may be used include, for example, polydimethylsiloxanes. These silicones are available, for example, from General electric company as the Viscasil R and SF 96 series and from Dow Corning as the Dow Corning 200 series.

Polyalkylaryl siloxane fluids that may be used also include polymethylphenylsiloxanes. These siloxanes can be obtained, for example, from General Electric Company as SF 1075 methylphenyl Fluid or from Dow Corning as 556Cosmetic Grade Fluid.

Particularly preferred for enhanced shine of the hair are highly arylated silicones, such as highly phenylated polyethyl silicone compounds, having a refractive index of about 1.46 or greater, especially about 1.52 or greater. When these high refractive index silicones are used, they should be mixed with a spreading agent (such as a surfactant or a silicone resin as described below) to reduce surface tension and enhance the film-forming ability of the material.

Polyether siloxane copolymers that can be used include, for example, polypropylene oxide modified polydimethylsiloxanes (e.g., Dow Corning DC-1248), ethylene oxide or mixtures of ethylene oxide and propylene oxide can also be used. The ethylene oxide and polypropylene oxide content should be sufficiently low to prevent dissolution in the composition.

References disclosing suitable silicone fluids include U.S. Pat. No. 2,826,551, U.S. Pat. No. 3,964,500, U.S. Pat. No. 4,364,837 and british patent 849,433. Silicone compounds distributed by petarch Systems, inc., 1984 provide a rough, although not exclusive, list of suitable polysiloxane fluids.

Other silicone hair conditioning materials that are particularly useful in silicone conditioners are insoluble silicone gums. The term "silicone gum" as used herein means a viscosity of greater than or equal to 1m at 25 ℃²Polyorganosiloxane material per second (1,000,000 centistokes). Silicone gums are described by Petrarch and others, including U.S. Pat. No. 4,152,416, and "Chemistry and technology of Silicones" by Noll, Walter, New York: academic Press 1968. Also described as Silicone gums are the General Electric Silicone Rubber Product Data Sheets SE 30, SE33, SE54 and SE 76. The weight average molecular weight of the "silicone gum" is typically in excess of about 200,000, and is usually between about 200,000 and about 1,000,000. Specific examples include polydimethylsiloxane, (polydimethylsiloxane) (methylvinylsiloxane) copolymer, poly (dimethylsiloxane) (diphenylsiloxane) (methylvinylsiloxane) copolymer, and mixtures thereof.

Preferred silicone hair conditioners comprise a polydimethylsiloxane gum (which is highly viscous)At about 1m²S (1,000,000 centistokes)) and polydimethylsiloxane fluids (having a viscosity of about 1X 10^-5m²(10 centistokes) to about 0.1m²/s (100,000 centistokes)) in which the ratio of gum to fluid is from about 30: 70 to about 70: 30, preferably from about 40: 60 to about 60: 40.

An optional ingredient that may be included in the silicone conditioning agent is a silicone resin. The silicone resin is a highly crosslinked polysiloxane system. The crosslinking is introduced by incorporating trifunctional and tetrafunctional silanes with monofunctional or difunctional silanes, or both, during the production of the silicone resin. As understood in the art, the degree of crosslinking required to obtain a silicone resin will vary depending on the particular silane units incorporated into the silicone resin. Generally, silicone materials having a sufficient amount of trifunctional and tetrafunctional siloxane monomer units (and thus, a sufficient level of crosslinking) to form a rigid or hard film upon drying are considered to be silicone resins. The ratio of oxygen atoms to silicon atoms is an indication of the level of crosslinking of a particular silicone material. The silicone resins of the present invention are generally silicone materials having at least about 1.1 oxygen atoms per silicon atom. Preferably, the ratio of oxygen atoms to silicon atoms is at least about 1.2: 1.0. Silanes used in the preparation of silicone resins include monomethyl-, dimethyl-, trimethyl-, monophenyl-, diphenyl-, methylphenyl-, monovinyl-, methylvinyl-chlorosilane, and tetrachlorosilane, with methyl-substituted silanes being most commonly used. Preferred resins are GESS4230 and SS4267 supplied by General Electric. Commercially available silicone resins are generally provided in dissolved form in low viscosity volatile or nonvolatile silicone fluids. It will be apparent to those skilled in the art that silicone resins suitable for use in the present invention should be provided and incorporated in such dissolved form in the compositions of the present invention. The silicone resin enhances deposition of the silicone on the hair and enhances the shine of hair having a high refractive index volume.

For background information on silicones, including the sections discussing silicone fluids, silicone gums and silicone resins, and the preparation of silicones, reference is made to Encyclopaedia of Polymer Science and engineering, Vol.15, 2 nd edition, p.204-308, John Wiley & Sons, Inc., 1989.

Silicone materials and particularly silicone resins can be conveniently identified according to the shorthand nomenclature system known to those skilled in the art as the "MDTQ" nomenclature. Under this system, the siloxane is described in terms of the various siloxane monomer units present that make up the siloxane. Briefly, the symbol M represents a functional unit (CH)₃)₃SiO_0.5(ii) a D represents a difunctional unit (CH)₃)₂SiO; t represents a trifunctional unit (CH)₃)SiO_1.5(ii) a Q represents a quadruple or tetrafunctional unit SiO₂. The main moieties in the unit symbols such as M ', D', T 'and Q' represent substituents other than methyl, and are specifically defined for each case. Typical other substituents include groups such as vinyl, phenyl, amino, hydroxy, and the like. The molar ratios of the units, either in the subscripts of the symbols representing the total number of units of each type in the silicone (or an average thereof), or in the ratios specifically indicated in combination with the molecular weight, allow for the description of the silicone materials in terms of the MDTQ system. In silicone resins, a higher molar amount of T, Q, T 'and/or Q' relative to D, D ', M and/or M' means a higher level of crosslinking. However, the overall degree of crosslinking can also be expressed by the ratio of oxygen to silicon.

Silicone resins useful herein are preferably MQ, MT, MTQ, MQ and MDTQ resins. Thus, the preferred siloxane substituent is methyl. Especially preferred are MQ resins wherein the M: Q ratio is from about 0.5: 1.0 to about 1.5: 1.0, the resins having an average molecular weight of from about 1000 to about 10,000.

7. Dandruff removing agent

The compositions of the present invention may also comprise an anti-dandruff agent. Non-limiting examples of suitable anti-dandruff particles include: pyrithione salts, pyrrole, selenium sulfide, galangin, particulate sulfur, and mixtures thereof. Preferred are pyrithione salts. The anti-dandruff particulate described above should be physically and chemically compatible with the essential components of the composition and should not unduly impair product stability, aesthetics or performance.

The pyrithione salt anti-dandruff particulate, especially 1-hydroxy-2-pyrithione salts, is a highly preferred anti-dandruff agent particulate for use in the compositions of the present invention. The concentration of the pyrithione anti-dandruff particulate is typically from about 0.1% to about 4%, preferably from about 0.1% to about 3%, more preferably from about 0.3% to about 2%, by weight of the composition. Preferred pyrithione salts include those formed from heavy metals such as zinc, tin, cadmium, magnesium, aluminum and zirconium, preferably zinc, more preferably the zinc salt of 1-hydroxy-2-pyrithione (referred to as "zinc pyrithione" or "ZPT"), more preferably platelet-shaped 1-hydroxy-2-pyrithione salts, wherein the particles have an average size of up to about 20 μ, preferably up to about 5 μ, more preferably up to about 2.5 μ. Salts formed with other cations such as sodium are also suitable. Pyrithione antidandruff agents are described, for example, in U.S. patent 2,809,971, U.S. patent 3,236,733, U.S. patent 3,753,196, U.S. patent 3,761,418, U.S. patent 4,345,080, U.S. patent 4,323,683, U.S. patent 4,379,753, and U.S. patent 4,470,982. It is envisaged that when ZPT is used as an anti-dandruff particulate in the compositions herein, the growth or regrowth of hair may be stimulated or regulated (or both stimulated and regulated), or hair loss may be reduced or inhibited, or hair will appear thicker or fuller.

In addition to the anti-dandruff active selected from polyvalent metal salts of pyrithione, the present invention may further comprise one or more fungicidal or antimicrobial actives in addition to the metal pyrithione salt active. Suitable antimicrobial actives include coal tar, sulfur, maytansinoid ointment, castellani pigments, aluminum chloride, gentian violet, octopirox (octopirox ethanolamine), ciclopirox yethylanone, undecylenic acid and its metal salts, potassium permanganate, selenium sulfide, sodium thiosulfate, propylene glycol, bitter orange oil, urea preparations, griseofulvin, 8-hydroxyquinoline chloroiodoxyquine, thiodiazole, thiocarbamates, haloprogin, polyalkenes, hydroxypyridinones, morpholine, benzylamine, allylamines (e.g., terbinafine), tea tree oil, clove leaf oil, coriander, rose benseradix, berberine, thyme red, cinnamon oil, cinnamaldehyde, citronellac acid, hinokitiol, ichthammol, Sensiva SC-50, eleestab HP-100, azelaic acid, lysozyme, iodopropynyl butylcarbamate (IPBC), isothiazolinones such as octyl isothiazolinone and azolones, and combinations thereof. Preferred antimicrobial agents include itraconazole, ketoconazole, selenium sulfide and coal tar.

Azole antimicrobials include imidazoles such as benzimidazole, benzothiazole, bifonazole, butoconazole nitrate, climbazole, clotrimazole, croconazole, eberconazole, econazole, Elubiol, fenticonazole, fluconazole, isoconazole, ketoconazole, lanoconazole, metronidazole, miconazole, nyconazole, omoconazole, oxiconazole nitrate, sertaconazole, sulconazole nitrate, tioconazole, thiazole, and triazoles such as terconazole and itraconazole, and combinations thereof. When present in the composition, the azole antimicrobial active is present in an amount of from about 0.01% to about 5%, preferably from about 0.1% to about 3%, and more preferably from about 0.3% to about 2%, by weight of the composition. Especially preferred herein is ketoconazole.

Selenium sulfide is a particulate antidandruff agent suitable for use in the antimicrobial compositions of the present invention at effective concentrations ranging from about 0.1% to about 4%, preferably from about 0.3% to about 2.5%, more preferably from about 0.5% to about 1.5%, by weight of the composition. Selenium sulphide is generally considered to be a compound having one mole of selenium and two moles of sulphur, although it may also be a compound according to the general formula Se_xS_yWherein x + y is 8. The mean particle size of the selenium sulphide is typically below 15 μm, preferably below 10 μm, as measured by a pre-laser light scattering device (e.g. a Malvern 3600 instrument). Selenium sulfide compounds are disclosed, for example, in U.S. Pat. No. 2,694,668, U.S. Pat. No. 3,152,046, U.S. Pat. No. 4,089,945, and U.S. Pat. No. 4,885,107.

Sulfur may also be used as a particulate antimicrobial/antidandruff agent in the antimicrobial compositions of the present invention. Effective concentrations of particulate sulfur are typically from about 1% to about 4%, preferably from about 2% to about 4%, by weight of the composition.

The present invention may also comprise one or more keratolytic agents such as salicylic acid.

Additional antimicrobial actives of the present invention may include melaleuca (tea tree) extract and charcoal. The present invention may also comprise a combination of antimicrobial actives. The combination may include octopirox and zinc 1-oxo-2-mercaptopyridine, pine tar and sulfur, salicylic acid and zinc 1-oxo-2-mercaptopyridine, octopirox and climbazole, and salicylic acid and octopirox, and mixtures thereof. The sulfur is typically from about 1% to about 4%, preferably from about 2% to about 4%.

8. Granules

The personal care compositions of the present invention may comprise particles. Water-insoluble solid particles of various shapes and densities are useful. The particles of the present invention have a particle size (volume average measured based on particle size described below) of less than about 100 μm, preferably less than about 60 μm, and more preferably a particle size of less than about 30 μm.

The particles that may be present in the present invention may be natural, synthetic or semi-synthetic. In addition, mixed particles may also be present. The synthetic particles may be made from crosslinked polymers or non-crosslinked polymers. The particles in the present invention may have a surface charge or their surface may be modified with organic or inorganic substances such as surfactants, polymers and inorganic substances. Particle complexes may also be present.

Non-limiting examples of synthetic particles include nylon, silicone resins, poly (meth) acrylates, polyethylene, polyesters, polypropylene, polystyrene, polyurethanes, polyamides, epoxy resins, urea resins, and acrylic powders. Non-limiting examples of useful particles are Microease 110S, 114S, 116 (micronized synthetic wax), Micropoly 210, 250S (micronized polyethylene), Microslide (micronized polytetrafluoroethylene) and Microsilk (combination of polyethylene and polytetrafluoroethylene), all available from Micro Powder, Inc. Other examples include Luna (smooth silica particles) particles available from Phenomenex, MP-2200 (polymethylmethacrylate), EA-209 (ethylene/acrylate copolymer), SP-501 (Nylon-12), ES-830 (polymethylmethacrylate), BPD-800, BPD-500 (polyurethane) particles available from Kobo Products, Inc., and silicone resins available from GESilicones under the trade name Tospearl particles. Ganzpearl GS-0605 crosslinked polystyrene (available from Presperse) is also useful.

Non-limiting examples of mixed particles include Ganzpearl GSC-30SR (sericite and cross-linked polystyrene mixed powder) and SM-1000, SM-200 (mica and silica mixed powder, available from Presperse).

The interference pigments of the present invention are platelet-shaped particles. The platelet-shaped particles of the multi-phase personal care composition preferably have a thickness of no more than about 5 μm, more preferably no more than about 2 μm, and still more preferably no more than about 1 μm. The thickness of the platelet-shaped particles of the multi-phase personal care composition is preferably at least about 0.02 μm, more preferably at least about 0.05 μm, even more preferably at least about 0.1 μm, and still more preferably at least about 0.2 μm.

The interference pigments of the multi-phase personal care composition comprise a multilayer structure. The center of the particle is a flat matrix with a Refractive Index (RI) typically below 1.8. A wide variety of particulate substrates may be used herein. Non-limiting examples are natural mica, synthetic mica, graphite, talc, kaolin, aluminum oxide flakes, bismuth oxychloride, silica flakes, glass flakes, ceramics, titanium dioxide, CaSO₄、CaCO₃、BaSO₄Borosilicate, and mixtures thereof, preferably mica, silica, and alumina flakes.

A single layer film or a multi-layer film may be coated on the surface of the above substrate. The film is made of a high refractive material. The refractive index of these materials is typically above 1.8.

A wide variety of films are useful herein. A non-limiting example is TiO₂、Fe₂O₃、SnO₂、Cr₂O₃、ZnO、ZnS、ZnO、SnO、ZrO₂、CaF₂、Al₂O₃BiOCl, and mixtures thereof, or in the form of a separate layer, preferably TiO₂、Fe₂O₃、Cr₂O₃、SnO₂. For multilayer structures, the film may be composed of all high refractive index materials, or alternatively composed of films having high and low RI materials with a high RI film as the top layer.

Non-limiting examples of interference pigments useful herein include those under the trade name PRESTIGE^®、FLONAC^®Those provided by perspersperse, inc; under the trade name TIMIRON^®、COLORONA^®、DICHRONA^®And XIRONA^®Those provided by EMD Chemicals, inc; and FLAMENCO by the trade name^®、TIMICA^®、DUOCHROME^®Those provided by Engelhard co.

In an embodiment of the invention, the surface of the interference pigment is hydrophobic or has been hydrophobically modified. The Contact Angle of interference pigments was measured using Particle Contact Angle Test as described in co-pending application serial No. 60/469,075, filed on 8/5/2003. The larger the contact angle, the more hydrophobic the interference pigment. The interference pigments of the present invention have a contact angle of at least 60 degrees, more preferably greater than 80 degrees, even more preferably greater than 100 degrees, and still more preferably greater than 100 degrees.

Non-limiting examples of hydrophobic surface treatments useful herein include silicones, acrylate silicone copolymers, acrylate polymers, alkylsilanes, titanium isopropyl triisostearate, sodium stearate, magnesium myristate, perfluoroalcophosphate, perfluoropolymethyl isopropyl ether, lecithin, carnauba wax, polyethylene, chitosan, lauroyl lysine, vegetable lipid extracts, and mixtures thereof, preferably silicones, silanes and stearates. Surface treatment mechanisms include USCosmetics, KOBO Products Inc. and Cardre Inc.

9. Crosslinked hydrosilane elastomers

The personal care compositions of the present invention may comprise a crosslinked silicone elastomer. The crosslinked silicone elastomer is present in an amount of from about 0.01% to about 15%, preferably from about 0.1% to about 10%, even more preferably from about 1% to about 5%, by weight of the composition. These benefit agents provide hair alignment and softness (emollient) benefits to the hair. The preferred composition is a dimethicone/vinyl dimethicone crosspolymer. The dimethicone/vinyl dimethicone crosspolymer is provided by a variety of suppliers including Dow Corning (DC 9040 and DC 9041), general electric (SFE 839), Shin Etsu (KSG-15, 16, 18[ dimethicone/phenyl vinyl dimethicone crosspolymer ]), Grant Industries (GransilTM stock series), and lauryl dimethicone/vinyl dimethicone crosspolymer is provided by Shin Etsu (e.g., KSG-31, KSG-32, KSG-41, KSG-42, KSG-43, and KSG-44). Crosslinked organopolysiloxane elastomers useful herein and methods for making them are further described in U.S. Pat. No. 4,970,252, U.S. Pat. No. 5,760,116, U.S. Pat. No. 5,654,362, and Japanese patent application JP 61-18708 assigned to Pola Kasei Kogyo KK. Silicone elastomers of the type described in U.S. patents 5,412,004, 5,837,793, and 5,811,487 may also be used herein. The elastomers of the present invention are preferably cured under anhydrous conditions or in an anhydrous environment.

10. Higher alkylene (Peralkylene) hydrocarbons

The present invention may comprise a higher alkylene hydrocarbon (peralkylene hydrocarbon) material. These are branched alk (en) yl species with a pendant group of-H, C_1-4Alk (en) yl or (-H or C)_1-4Alk (en) yl) substituted saturated or unsaturated cyclic hydrocarbon, and wherein at least 10% of the number of pendant groups are other than-H, more preferably from 25% to 75%, most preferably from 40% to 60%. The preferred alkyl side group is methyl.

Preferably, the high alk (en) yl hydrocarbon species have a weight average molecular weight of less than about 4200, preferably from about 180 to about 2500. These low molecular weight high-alk (en) yl hydrocarbon materials are available, for example, from BP under the tradename Indopol, Solatex under the tradename Solanes, and Chevron under the tradename Oronite OLOA.

It is also advantageous to control the particle size of the high alk (en) yl hydrocarbon material in order to maintain suitable conditioning characteristics of the composition. By using a low molecular weight high alk (en) yl hydrocarbon material, the need for large amounts of expensive conditioning oils is significantly reduced, reducing the consumption associated with conventional styling shampoos.

Preferred high alk (en) yl hydrocarbon species are polymers of butylene, isoprene, terpene and styrene, and copolymers of any combination of these monomers, such as butyl rubber (polymethacrylene-co-isoprene), natural rubber (cis-1, 4-polyisoprene) and hydrocarbon resins, such as those provided in Encyclopedia of Chemical Technology (3 rd edition, volume 8, page 852-869) by Kirk and Ohmer, for example, aliphatic and aromatic petroleum resins, terpene resins, and the like. It is especially preferred to use polymers that are soluble in low molecular weight high alk (en) yl hydrocarbon materials or other solvents or carriers, if used.

Particularly preferred are higher alk (en) yl hydrocarbon materials having the formula:

wherein: n is 0 to 3, preferably 1;

m is an integer such that the weight average molecular weight of the hydrocarbon is less than or equal to 4200.

R¹is-H or C_1-4An alkyl group; preferably methyl;

R²is C_1-4An alkyl group; preferably methyl;

R³is-H or C_1-4Alkyl radical(ii) a Preferably- -H or methyl

Particularly preferred are polybutene materials having the following formula:

wherein R is⁴Is composed of

These materials are available under the trade name Permethyl from Presperse Inc. The total content of high alk (en) yl hydrocarbons in the hair styling composition is preferably from about 0.01% to about 10%, more preferably from about 0.2% to about 5%, even more preferably from about 0.2% to about 2%, by weight of the composition.

11. Hair dye/dye

The compositions of the present invention may also contain hair dyes/dyes. Hair dyes/dyes useful herein include anthraquinone, azo, nitro, alkali, triarylmethane, or disperse dyes, or any combination thereof. A range of direct dyes, including basic dyes and neutral dyes, may also be used herein. Suitable dyes are described in us 5,281,240 and us 4,964,874.

12. Other ingredients

The compositions herein may contain a variety of other optional components suitable to make the compositions more cosmetically or aesthetically acceptable or to provide additional use benefits. These conventional optional ingredients are well known to those skilled in the art. Additional ingredients may be present in either the cleansing phase or the benefit phase.

A variety of additional ingredients may be formulated in the compositions of the present invention. These components include: other conditioning agents; hair retention polymers used in various styling products (i.e., hair sprays, mousses, gels, etc.) to enhance the ability to style hair and provide durability of hair styling; detersive surfactants such as anionic, nonionic, amphoteric, and zwitterionic surfactants; additional thickeners and suspending agents such as xanthan gum, guar gum, hydroxyethyl cellulose, methyl cellulose, hydroxyethyl cellulose, starch and starch derivatives; viscosity modifiers such as methanolamides of long chain fatty acids such as cocomonoethanolamide; a crystalline suspending agent; pearlescent aids such as ethylene glycol distearate; preservatives such as benzyl alcohol, methyl paraben, propyl paraben and imidazolidinyl urea; polyvinyl alcohol; ethanol; pH adjusters such as citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate; salts, typically such as potassium acetate and sodium chloride; colorants such as any FD & C or D & C dyes; hair oxidizing (bleaching) agents such as hydrogen peroxide, perborates and persulfates; hair reducing agents, such as thioglycolates; a fragrance; sequestering agents, such as disodium edetate; polymeric plasticizers such as glycerol, diisobutyl adipate, butyl stearate and propylene glycol. Other non-limiting examples of these optional ingredients include: vitamins and their derivatives (such as ascorbic acid, vitamin E, tocopherol acetate, and the like), sunscreens, thickeners (such as polyol alkoxylates, available from Croda under the trade name crotix), preservatives for maintaining the antimicrobial integrity of cleansing compositions, anti-acne agents (resorcinol, salicylic acid, and the like), antioxidants, skin soothing and healing agents (such as aloe vera extract, allantoin, and the like), chelating and sequestering agents, and agents suitable for aesthetic purposes (such as fragrances, essential oils, skin sensates, pigments, pearlescers (such as mica and titanium dioxide), lakes, colorants, and the like (such as clove oil, menthol, camphor, eucalyptus oil, and eugenol)). Non-limiting examples of suitable carboxylic copolymers, emulsifiers, emollients, and other additional ingredients are disclosed in U.S. Pat. No. 5,011,681. These optional ingredients are generally used individually at levels of from about 0.01% to about 10.0%, preferably from about 0.05% to about 5.0%, by weight of the composition.

Application method

The multi-phase personal care compositions of the present invention are used in a conventional manner to provide conditioning and other benefits. These methods of use depend on the type of composition used, but generally involve applying an effective amount of the product to the hair or skin, which can then be rinsed off from the hair or skin (in the case of hair rinses), or allowed to remain on the hair or skin (in the case of gels, creams, and creams). By "effective amount" is meant an amount sufficient to provide a dry combing benefit. Typically about 1g to about 50g is applied to the hair, skin or scalp. Typically, the composition is distributed throughout the hair or skin by rubbing or massaging the hair, scalp or skin. Preferably, the composition is applied to wet or damp hair before the hair is dried. After applying such a composition to the hair, the hair is dried and styled according to the user's preference. Alternatively, the composition is applied to dry hair, which is then combed and styled according to the user's preferences. The multi-phase personal care composition is useful for delivering conditioning benefits to hair or skin, and/or hair styling benefits to hair or skin, and/or hair coloring benefits to hair or skin by topically applying an effective amount of the composition to hair or skin, and then rinsing the composition with water to remove the composition from the hair or skin.

Preparation method

The multi-phase personal care compositions of the present invention can be prepared by any known or otherwise effective technique suitable for making and formulating the desired multi-phase product form. It is particularly effective to combine toothpaste tube filling technology with a rotary table design. Specific non-limiting examples of such processes, as they are applied to specific embodiments of the present invention, are set forth in the examples below.

Non-limiting examples

The compositions illustrated in the following examples illustrate specific embodiments of the compositions of the present invention, but are not intended to be limiting thereof. Other variations may be made by those skilled in the art without departing from the spirit and scope of the invention. These exemplary embodiments of the compositions of the present invention provide enhanced deposition of multiphase personal care compositions due to enhanced coacervate formation.

The compositions illustrated in the following examples are prepared by conventional formulation and mixing methods, one example of which is described above. Unless otherwise indicated, all exemplified amounts are listed in weight percent, except minor ingredients such as diluents, preservatives, colored solutions, hypothetical ingredients, botanical drugs, and the like.

Dual phase compositions comprising both a cleansing phase and an additional (conditioning) phase

	Example 1	Example 2	Example 3	Example 4
					Composition (I)	Weight percent of	Weight percent of	Weight percent of	Weight percent of
Cleansing phase composition
					Lauryl polyoxyethylene ether-3 ammonium sulfate	3.0	3.0	3.0	-
Sodium lauryl amphoacetate (Miranol L-32Ultra, available from Rhodia)	16.7	16.7	16.7	-
					Surfactant blend (MiracareSLB-365, available from Rhodia)	-	-	-	23.7
Ammonium dodecyl sulfate	1.0	1.0	1.0	3.3
					Ammonium lauryl polyoxyethylene ether sulfate				0.42
Lauric acid (Emry 625)	0.9	0.9	0.9	2.0
					Glycerol tris (hydroxystearate) (Thixcin R)	2.0	2.0	2.0	-
Guar hydroxypropyl trimonium chloride (N-Hance 3196, available from Aqualon)	0.17	0.75	0.75	0.7
					Guar hydroxypropyl trimonium chloride (Jaguarc-17, available from Rhodia)	0.58	-	-	-
Polyquaternary ammonium 10(UCARE Polymer JR-30M, available from Amerchol)	0.45	-	-	-
					Polymethacrylamidopropyltrimonium chloride (Polycare 133 available from Rhodia)	-	0.24	-	0.13
Polyquaternary ammonium-39 (Merqurt Plus 3300, available from Calgon)	-	0.81	-	-
					PEG 90M (Polyox WSR301, available from Union Carbide)	0.25	-	-	-
PEG-14M (Polyox WSR N-3000H, available from Union Carbide)	0.45	2.45	2.45	-
					Linoleamidopropyl PG-dimethyl ammonium chloride phosphorus	-	1.0	4.0	-

Acid ester polydimethylsiloxane (Monasil PLN, available from Uniqema)
					Polydimethylsiloxane (Viscasil330M, available from General Electric)	-	-	-	4.2
Ethylene glycol distearate				1.5
					Glycerol	1.4	4.9	4.9	-
Sodium chloride	0.3	0.3	0.3	2.84
					Sodium benzoate	0.25	0.25	0.25	-
Ethylene diamine tetraacetic acid disodium (Hampene NA2/Dissolvine NA-2X)	0.13	0.13	0.13	0.05
					1, 3-dimethylol-5, 5-dimethylhydantoin	0.37	0.37	0.37	-
DMDM hydantoin (Lonza)	-	-	-	0.37
					D&C Red #30 Talc lake	-	-	-	0.05
Citric acid	1.6	0.95	0.95	0.64
					Titanium dioxide	0.5	0.5	0.5	-
Perfume	0.5	0.5	0.5	0.25
					Water (W)	Proper amount of	Proper amount of	Proper amount of	Proper amount of
Expancel 091-DE-40-D30(ExpancelCorp.)	0.00001	0.00001	0.00001	0.000015
					Benefit phase composition
Stearamidopropyl dimethylamine (1)	2.00	1.60	2.00	3.0
					Stearamidoethyldiethylamine (2)
Behenyl trimethyl ammonium chloride (3)	-	3.4	-	-
					L-glutamic acid (4)	0.64	0.51	0.64	0.96
Cetyl alcohol (5)	2.50	2.32	3.75	3.75
					Stearyl alcohol (6)	4.50	4.2	6.75	6.75
Oleyl alcohol (7)	-	-	-	-
					Mineral oil (8)		-	-	-
Dimethicone blend (9)	-	4.2
					Silicone emulsion (10)				6.3

Polydimethylsiloxane Silicone fluid blend (11)	4.2	-	4.2
					Benzyl alcohol	0.40	0.40	0.40	0.40
EDTA	0.10	0.13	0.10	0.10
					Kathon CG(12)	0.03	0.03	0.03	0.03
P-hydroxybenzoic acid methyl ester
					Propyl p-hydroxybenzoate
Panthenyl ethyl ether	0.05	0.1		0.06
					Panthenol	0.09	0.09		0.05
Sodium chloride	-	0.01	-	-
					Perfume	0.25	0.20	0.20	0.25
Water (W)	Proper amount of	Proper amount of	Proper amount of	Proper amount of
					Cleansing phase/benefit phase ratio	40/60	70/30	70/30	70/30

(1) Stearamidopropyl dimethylamine: amidoamine MPS available from Nikko

(2) Stearamidoethyldiethylamine: amidoamine S available from Nikko

(3) Behenyl trimethyl ammonium chloride available as Genamin KDMP from Clariant

(4) L-glutamic acid: l-glutamic acid (cosmetic grade) from Ajinomoto

(5) Cetyl alcohol: KONOL series available from New Japan Chemical

(6) Stearyl alcohol: KONOL series available from New Japan Chemical

(7) Oleyl alcohol: UNJECOL 90BHR available from New Japan Chemical

(8) Mineral oil: benol from Witco

(9)60％0.00035m²Per s (350 centistokes) and 40% 18m²A fluid polydimethylsiloxane blend (18,000,000 centistokes) available from General Electric Silicones Products.

(10) Dow Corning HMW 2220 nonionic emulsion

(11) Polydimethylsiloxane fluid blend (0.5MM centistokes/0.0002 m)²Per s (200 centistokes) [15/85 v/v%]) Available from General Electric silicon Products.

(12) Kathon CG: mixtures of methylchloroisothiazoline and methylisothiazoline, available from Rohm& Hass Co.。

Example 5

Example 6

Example 7

Example 8

Example 9

Composition (I)	Weight percent of	Weight percent of	Weight percent of	Weight percent of	Weight percent of
						Cleansing phase composition
Lauryl polyoxyethylene ether-3 ammonium sulfate	3.0	3.0	3.0	-	3.0
						Sodium lauryl amphoacetate (Miranol L-32Ultra, available from Rhodia)	16.7	16.7	16.7	-	16.7
Surfactant blend (Miracare SLB-365 available from Rhodia)	-	-	-	23.7	-
						Ammonium dodecyl sulfate	1.0	1.0	1.0	3.3	1.0
Ammonium lauryl polyoxyethylene ether sulfate				0.42
						Lauric acid (Emry 625)	0.9	0.9	0.9	2.0	0.9
Glycerol tris (hydroxystearate) (Thixcin R)	2.0	2.0	2.0	-	2.0
						Guar hydroxypropyl trimonium chloride (N-Hance 3196, available from Aqualon)	0.17	0.75	0.75	0.7	0.17
Guar hydroxypropyl trimonium chloride (Jaguar C-17, available from Rhodia)	0.58	-	-	-	0.58
						Polyquaternary ammonium 10(UCARE Polymer JR-30M, available from Amerchol)	0.45	-	-	-	0.45
Polymethacrylamidopropyltrimonium chloride (Polycare 133 available from Rhodia)	-	0.24	-	0.13	-
						Polyquaternium-39 (Merqurt Plus 3300, available from	-	0.81	-	-	-

Calgon)
						PEG 90M (Polyox WSR301, available from Union Carbide)	0.25	-	-	-	0.25
PEG-14M (Polyox WSRN-3000H, available from Union carbide)	0.45	2.45	2.45	-	0.45
						Linoleamidopropyl PG-dimethyl ammonium chloride phosphate polydimethylsiloxane (Monasil PLN, available from Uniqema)	-	1.0	4.0	-	-
Polydimethylsiloxane (Viscasil330M, available from general electric)	-	-	-	4.2	-
						Ethylene glycol distearate				1.5
Glycerol	1.4	4.9	4.9	-	1.4
						Sodium chloride	0.3	0.3	0.3	2.84	0.3
Sodium benzoate	0.25	0.25	0.25		0.25
						Ethylene diamine tetraacetic acid disodium (Hampene A2/DissolvinA-2X)	0.13	0.13	0.13	0.05	0.13
1, 3-dimethylol-5, 5-dimethylhydantoin	0.37	0.37	0.37	-	0.37
						DMDM hydantoin (Lonza)	-	-	-	0.37	-
D&C Red #30 Talc lake	-	-	-	0.05	-
						Citric acid	1.6	0.95	0.95	0.64	1.6
Titanium dioxide	0.5	0.5	0.5	-	0.5
						Perfume	0.5	0.5	0.5	0.25	0.5
Water (W)	Proper amount of	Proper amount of	Proper amount of	Proper amount of	Proper amount of
						Expancel 091-DE-40-D30	0.00001	0.00001	0.00001	0.000015	0.00001

(Expancel Corp.)
						Benefit phase composition
Versagel MD500	72.3	91.6	-	-	-
						Versagel ME 1600	-	-	-	72.3	-
Versagel MP 1600	-	-	96.0	-	-
						Versagel M1600	-	-	-	-	-
Cetyl alcohol	5.0	-	-	5.0	-
						Stearyl alcohol	9.0	-	-	9.0	-
L-glutamic acid	1.3	-	-	1.3	-
						Stearamidopropyl dimethylamine	4.0	-	-	4.0	-
Dimethicone blend (1)	8.4	8.4	-	8.4
						Polydimethylsiloxane (2)	-	-	-	-	100
Aminosilicones	-	-	4.0	-	-
						Cleansing phase/benefit phase ratio	80/20	80/20	80/20	70/30	96/4

(1)60％0.00035m²Per s (350 centistokes) and 40% 18m²A fluid polydimethylsiloxane blend (18,000,000 centistokes) available from General Electric Silicones Products.

(2) High molecular weight polydimethylsiloxane having a viscosity of about 0.3m²S (300,000 centistokes). (from Dow Corning)

The cleansing phase compositions of examples 1,5 and 9 were prepared by first obtaining the following premixes: citric acid was premixed in water at a ratio of 1: 3, guar polymer was premixed with Jaguar C-17 and N-Hance 3196 in water at a ratio of about 1: 10, UCARE was premixed with JR-30M in water at a ratio of about 1: 30, Polyox was premixed with PEG-90M and PEG-14M in glycerol at a ratio of about 1: 2. The following ingredients were then added to the main mixing vessel: ammonium lauryl sulfate, laureth-3 sulfate, citric acid premix, Miranol L-32ultra, sodium chloride, sodium benzoate, disodium ethylenediaminetetraacetate, lauric acid, Thixcin R, guar premix, UCARE premix, Polyox premix, and balance water. The vessel was then heated with stirring until it reached 88 deg.C (190 deg.F). It was allowed to mix for about 10 minutes. The batch was cooled with a cold water bath while stirring slowly until it reached 43 deg.C (110 deg.F). The following ingredients were added: 1, 3-dimethylol-5, 5-dimethylhydantoin, spice, titanium dioxide. Stirring until a homogeneous solution is formed.

The cleansing phase compositions of examples 2 and 6 were prepared by first obtaining the following premixes: citric acid was premixed in water at a ratio of about 1: 3, guar polymer and N-Hance 3196 were premixed in water at a ratio of about 1: 10, Polyox and PEG-14M were premixed in glycerol at a ratio of about 1: 2. The following ingredients were then added to the main mixing vessel: ammonium lauryl sulfate, laureth-3 sulfate, citric acid premix, Miranol L-32 ultrara, sodium chloride, sodium benzoate, disodium ethylenediaminetetraacetate, lauric acid, Thixcin R, guar premix, Polyox premix, Polycare133, Merquat Plus 3300, Monosil PLN, and balance water. The vessel was then heated with stirring until it reached 88 deg.C (190 deg.F). Mix for about 10 minutes. The batch was then cooled with a cold water bath while stirring slowly until it reached 43 deg.C (110 deg.F). Finally, the following ingredients were added: 1, 3-dimethylol-5, 5-dimethylhydantoin, spice, titanium dioxide. Stirring until a homogeneous solution is formed.

The cleansing phases of examples 3 and 7 were prepared by first obtaining a premix of citric acid in water at a ratio of about 1: 3, guar polymer with N-Hance 3196 in water at a ratio of about 1: 10, and Polyox with PEG-14M in glycerol at a ratio of about 1: 2. The following ingredients were then added to the main mixing vessel: ammonium lauryl sulfate, laureth-3 sulfate, citric acid premix, Miranol L-32 ultrara, sodium chloride, sodium benzoate, disodium ethylenediaminetetraacetate, lauric acid, Thixcin R, guar premix, Polyox premix, Monasil PLN, and balance water. The vessel was then heated with stirring until it reached 88 deg.C (190 deg.F). The vessel was mixed for about 10 minutes. The batch was then cooled with a cold water bath while stirring slowly until it reached 43 deg.C (110 deg.F). Finally, the following ingredients were added: 1, 3-dimethylol-5, 5-dimethylhydantoin, spice, titanium dioxide. Stirring until a homogeneous solution is formed.

The cleansing phase compositions of examples 4 and 8 were prepared by first obtaining the following premixes: a silicone premix (10: 1 ratio) in water containing ammonium laureth sulfate, a premix of ethylene glycol distearate with ammonium lauryl sulfate (1: 1 ratio) and a premix of citric acid with water (1: 1 ratio). The ingredients were added in the following order: water, Nhance 3196, citric acid, Polycare133, Hampene, ammonium lauryl sulfate, Miracare SLB-365, lauric acid. Heated to 150 ℃ and stirred for 15 minutes, slowly cooled to 60 ℃ and then added with sodium chloride, D & C red # 30. DMDM hydantoin was added when it reached 40 ℃, the pH was adjusted between 5.8 and 6.2 with citric acid, the fragrance and silicone were added, and stirred for 30 minutes. The batch was centrifuged and density adjusted by adding Expancel.

For the preparation of the benefit phase compositions of examples 1 to 4, water, stearamidopropyl dimethylamine and about 50% L-glutamic acid were mixed at a temperature above 70 ℃. Then, the high melting point aliphatic compound and benzyl alcohol are added with stirring. Cooled to below 60 c, then the remaining L-glutamic acid and other remaining components are added with stirring and then cooled to about 30 c.

In the benefit phase compositions of examples 5 to 8, the required amount of the appropriate Versagel was weighed into a container and then heated to 40 ℃ to 50 ℃ while stirring at a speed of 31.4-53 radians/s (300 and 500 rpm). Then, the other ingredients were added until a homogeneous mixture was obtained.

In the benefit phase composition of example 9, a recognized polydimethylsiloxane was used.

While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

All documents cited in the background, summary and detailed description of the invention are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention.

Claims (9)

1. A multi-phase personal care composition, said multi-phase personal care composition comprising:

a. at least one cleansing phase, preferably the cleansing phase is present in an amount of from 1% to 85% by weight of the composition, more preferably from 3% to 80% by weight of the composition, and

b. at least one benefit phase selected from the group consisting of a fatty compound gel network, a hydrophobic gel network in a fatty compound gel network, a fatty compound gel network in a hydrophobic gel network, and a silicone or silicone gel, preferably the benefit phase is present in an amount of from 1% to 95% by weight of the composition, more preferably from 5% to 90% by weight of the composition,

wherein the cleansing phase and the benefit phase are visually distinct phases that are packaged and held in physical contact.

2. The multi-phase personal care composition of claim 1, wherein said cleansing phase is a blend of sodium trideceth sulfate, sodium lauroamphoacetate, and cocamide MEA.

3. The multi-phase personal care composition according to any one of the preceding claims, wherein said benefit phase is a fatty alcohol gel network comprising a cationic surfactant and a fatty compound, or a hydrophobic gel network comprising a hydrophobic solvent thickened with a polymeric gelling agent, or a fatty compound gel network in a hydrophobic gel network.

4. The multi-phase personal care composition according to any one of the preceding claims, further comprising an aqueous carrier and/or a stability enhancing agent, preferably thermoplastic expandable microspheres and/or an additional component selected from humectants, solutes, water-soluble nonionic polymers, styling polymers, liquid fatty alcohols, fatty acids, cationic polymer conditioners, silicone conditioners, particles, crosslinked silicone elastomers, higher alkylene hydrocarbons and hair colorants and dyes.

5. The multi-phase personal care composition according to any one of the preceding claims, wherein said cleansing phase further comprises a structuring agent.

6. The multi-phase personal care composition according to any one of the preceding claims, wherein the difference in density between said cleansing phase and said benefit phase is less than 0.30g/cm³Preferably less than 0.05g/cm³。

7. The multi-phase personal care composition according to any one of the preceding claims, wherein said cleansing phase, said benefit phase, or both said cleansing phase and said benefit phase are visually clear.

8. The multi-phase personal care composition according to any one of the preceding claims, wherein said visually distinct phases form a pattern selected from the group consisting of stripes, geometric shapes, marbleized stripes, and combinations thereof.

9. A method of delivering a conditioning benefit to hair or skin and/or a hair styling benefit to hair or skin and/or a hair coloring benefit to hair or skin, the method comprising the steps of:

a) topically applying to the hair or skin an effective amount of a composition according to any of the preceding claims; and

b) removing the composition from the hair or skin by rinsing with water.