CN1454072A - Personal care composition comprising hydrophobic gel - Google Patents

Abstract

Disclosed are personal care compositions comprising, by weight: (a) from about 5% to about 35% of a hydrophobic gel comprising: (i) a cholesteryl derivative; (ii) an oil-swellable (iii) a non-volatile liquid oil; and (iv) a polar solvent; and (b) a carrier substantially free of water, surfactants, and lecithin; The need for physical stability in personal care compositions.

Description

Personal care composition comprising hydrophobic gel

field of invention

The present invention relates to personal care compositions comprising hydrophobic gels. The composition is especially useful in the preparation of lipsticks, foundations and creams.

Background of the invention

Lipsticks are mainly made of lipophilic or hydrophobic materials. Lipsticks designed to provide a moisturizing benefit to the lips contain water, polar solvents, or other moisturizing components that are more or less hydrophilic. The use of associative structures has been suggested to incorporate the moisturizing component in the lipophilic matrix of the lipstick. While such lipstick compositions provide good moisturizing benefits to the lips, they are not entirely satisfactory in terms of physical stability, color stability and perspiration resistance.

Physical stability relates to the stability of the lipstick during storage and use. For example, a stable lipstick will not deform during storage at room temperature and will not bend or crack under normal conditions of use. Color stability relates to the stability of the color during storage and after application on the lips. It is known that lipsticks containing high levels of moisturizing components tend to change color over time after application to the lips. Sweating is a phenomenon that occurs on the surface of the lipstick and is believed to be caused by oils and/or solvents separating and leaching from the lipophilic base of the lipstick. Sweating gives a bad appearance to the user.

Emulsion compositions using cholesteryl derivatives and swelling clay materials are disclosed in, for example, Japanese publication A-8-20529. While such emulsions are believed to provide physical stability to the composition, further improvements are still needed.

Based on the foregoing, there remains a need for lipstick compositions that not only have improved physical stability, improved color stability, and improved perspiration resistance, while also providing a moisturizing benefit to the lips. There is also a need for personal care compositions having improved physical stability over a broad range of viscosities and/or hardnesses.

Summary of the invention

The present invention relates to personal care compositions comprising the following components by weight:

(a) from about 5% to about 35% of a hydrophobic gel comprising:

(i) cholesteryl derivatives;

(ii) oil-swellable clay materials;

(iii) non-volatile liquid oils; and

(iv) polar solvents; and

(b) a carrier substantially free of water, surfactants and lecithin;

The personal care composition satisfies the need for a personal care composition with improved physical stability.

The present invention also relates to lip balm compositions that satisfy the need for improved physical stability, improved color stability, and improved perspiration resistance, while providing a moisturizing benefit to the lips.

The invention also relates to suitable processes for the preparation of the compositions described above.

These and other features, aspects and advantages of the present invention will become apparent to those skilled in the art from a reading of the present specification, disclosure and claims.

Detailed description of the invention

Definitions of terms used herein are listed below.

"Comprising" means that other steps and other ingredients that do not affect the end result can be added. The term includes "consisting of" and "consisting essentially of".

All percentages are by weight of the total composition unless expressly stated otherwise.

All cited references are hereby incorporated by reference in their entirety. Citation of any document is not an admission as to its availability as prior art to the present invention.

All ratios are by weight unless otherwise indicated.

The products and methods of the invention are described in detail below.

Cholesteryl derivatives

The compositions of the present invention comprise cholesteryl derivatives having a high water holding capacity. The cholesteryl derivatives used in the present invention provide hydrophobic gels with oil-swellable clay materials, non-volatile liquid oils and polar solvents. Without being bound by theory, it is believed that the cholesteryl derivatives retain polar solvents, thereby providing stable gels.

The amount of the cholesteryl derivative contained is adjusted according to the amount of the polar solvent. That is, when a high level of polar solvent is required, a high level of cholesteryl derivative is included to effectively maintain the polar solvent. To provide a lipstick composition, the cholesteryl derivative comprises from about 2% to about 7%, preferably from about 3% to about 6%, by weight of the total composition.

Cholesteryl derivatives that can be used in the present invention include cholesterol and fatty acids with 12 to 22 carbon atoms or hydroxy fatty acids with high water holding capacity, preferably cholesterol 12-hydroxystearate, cholesterol macadami nutate , Cholesteryl Stearate and mixtures thereof. Commercially available cholesteryl derivatives include cholesteryl 12-hydroxystearate under the tradename Salacos HS from Nisshin Oil Mills, Ltd., and cholesteryl 12-hydroxystearate under the tradename YOFCO MAC from Nippon Fine Chemical Co., Ltd. Sterol macadami nutate.

Oil-swellable clay material

The compositions of the present invention comprise oil-swellable clay materials having a high oil-swellability. The oil-swellable clay materials used in the present invention provide hydrophobic gels together with cholesteryl derivatives, non-volatile liquid oils and polar solvents. The oil-swellable clay material is first swollen with a non-volatile liquid oil and then mixed with the other ingredients to make the hydrophobic gel. Without being bound by theory, it is believed that while absorbing the non-volatile liquid oil, the oil-swellable clay material also keeps the cholesteryl derivative and the polar solvent tightly bound within its structure.

The oil-swellable clay material acts as a thickener for the composition. Accordingly, the amount of oil-swellable clay material included is adjusted according to the desired viscosity and hardness of the composition. To provide a lipstick composition, the oil-swellable clay material comprises from about 0.1% to about 1%, preferably from about 0.2% to about 0.5%, by weight of the total composition.

Oil-swellable clay materials useful in the present invention include hectorite, bentonite, montmorillonite and bentonite which have been modified to be compatible with oil. The modification is preferably quaternization with ammonium compounds. Preferred oil-swellable clay materials include quaternary ammonium-modified hectorite. Commercially available oil-swelling clay materials include benzyldimethylstearyl ammonium hectorite available from Rheox. Inc. under the trade designation Bentone 38 CG OR.

non-volatile oil

The compositions of the present invention comprise a fixed oil suitable for personal use. To provide a hydrophobic gel for use in lipstick compositions, the non-volatile oil comprises from about 2% to about 10%, preferably from about 4% to about 7%, by weight of the total composition.

The fixed oils useful in the present invention may also be employed in a carrier, depending on the desired product characteristics. In this case, preferably, the fixed oil used for the preparation of the hydrophobic gel is mixed separately from the other components for the preparation of the hydrophobic gel. Thus, the fixed oil used to make the carrier is preferably mixed with the other ingredients used to make the carrier, if present; and finally the hydrophobic gel and carrier are mixed together to make the composition of the invention.

Non-volatile oils useful in the present invention are, for example, tridecyl isononanoate, isostearyl isostearate, isocetyl isostearate, isopropyl isostearate, isonononyl Isodecyl Myristate, Cetyl Caprylate, Isononyl Isononanoate, Diisopropyl Myristate, Isocetyl Myristate, Isotridecyl Myristate, Isopropyl Myristate Esters, Isostearyl Palmitate, Isocetyl Palmitate, Isodecyl Palmitate, Isopropyl Palmitate, Octyl Palmitate, Caprylic/Capric Triglycerides, Glyceryl Tris-2-Ethylhexanoate Esters, Diglycerol Sebacate, Neopentyl Glycol Di(2-Ethylhexanoate), Diisopropyl Dipolylinoleate, Tocopherol, Tocopheryl Acetate, Avocado Oil, Camellia Oil, Turtle oil, macadamia oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, almond oil, wheat germ oil, pasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla Oil, Soybean Oil, Peanut Oil, Tea Seed Oil, Coconut Oil, Rice Bran Oil, Chinese Paulownia Oil, Japanese Paulownia Oil, Jojoba Oil, Rice Germ Oil, Tricaprylycerin, Triisopalmitin, Trimethylol Propane Triisostearate, Isopropyl Myristate, Glyceryl Tri-2-Ethylhexanoate, Pentaerythritol Tetra-2-Ethylhexanoate, Lanolin, Liquid Lanolin, Liquid Paraffin, Squalane , petrolatum and mixtures thereof. Commercially available oils include, for example, tridecyl isononanoate under the tradename Crodamol TN from Croda, carboxyl esters containing the isotope carbon 13 from Nisshin Oil Mills, Ltd. and tocopheryl acetate from Eisai.

式(I)Non-volatile oils useful herein also include polyalkyl or polyaryl siloxanes having the following structure (I):

Formula (I)

wherein R ⁹³ is alkyl or aryl, and p is an integer from about 7 to about 8,000. Z ⁸ represents a group blocking the end of the siloxane chain. (R ⁹³ ) substituted on the siloxane chain or Z ⁸ alkyl or aryl substituted at the end of the siloxane chain may have any structure as long as the resulting siloxane satisfies the following conditions: remains liquid at room temperature; is dispersible; non-irritating, non-toxic, or harmful when applied to the skin; compatible with the other components of the composition; and chemically stable under normal conditions of use and storage. Suitable ^Z groups include hydroxy, methyl, methoxy, ethoxy, propoxy and aryloxy. The two R ⁹³ groups on the silicon atom may represent the same or different groups. Preferably, the two R ⁹³ groups represent the same group. Suitable ^R93 groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl. Preferred silicone compounds are polydimethylsiloxane, polydiethylsiloxane and polymethylphenylsiloxane. Polydimethylsiloxanes, also known as simethicones, are especially preferred. Polyalkylsiloxanes that may be used include, for example, polydimethylsiloxanes. These silicone compounds are available, for example, from the General Electric Company in its Viscasil ^(R) and SF96 series, and from Dow Corning in its Dow Corning 200 series.

Polyalkylaryl siloxane fluids may also be used and include, for example, polymethylphenylsiloxanes. These siloxanes are available, for example, from the General Electric Company as SF1075 methyl phenyl fluid, or from Dow Corning as 556 Cosmetic Grade Fluid.

Also useful in the present invention as fixed oils are the various grades of mineral oils. Mineral oil is a liquid mixture of hydrocarbons obtained from petroleum. Specific examples of suitable hydrocarbons include paraffin oil, mineral oil, dodecane, isododecane, hexadecane, isohexadecane, eicosene, isoeicosene, tridecane, tetradecane, Polybutene, polyisobutylene, and mixtures thereof.

polar solvent

The compositions of the present invention comprise a polar solvent which is soluble in water. Polar solvents provide a moisturizing benefit to the skin. The polar solvent also acts as a solvent for encapsulating water-soluble humectants that would otherwise be incompatible in the lipophilic carrier matrix. Without being bound by theory, it is believed that the polar solvent remains in the cholesteryl derivative and is further entrapped in the oil-swellable clay material to provide a stable hydrophobic gel.

To provide a lipstick composition, the polar solvent comprises from about 0.01% to about 10%, preferably from about 1% to about 8%, by weight of the total composition.

Polar solvents useful in the present invention include polyhydric alcohols such as glycerin, 1,3-butanediol, propylene glycol, hexylene glycol, propylene glycol, ethylene glycol, diethylene glycol, dipropylene glycol, diglycerin, sorbitol, and Other sugars that are in liquid form at room temperature. Also useful herein are water-soluble alkoxylated nonionic polymers such as polyethylene glycols.

Commercially available polar solvents that can be used in the present invention include: glycerin available from Asahi Denka; propylene glycol available from Inolex under the tradename LEXOL PG-865/855; 1,2-propanediol USP available from BASF; available from Daisel Kagaku Kogyo Dipropylene Glycol available from BASF under the same trade name; Diglycerol available from Solvay GmbH under the trade name DIGLYCEROL; Sodium Hyaluronate available from ActiveOrganics under the trade name ACTIMOIST; of the AVIAN SODIUMHYALURONATE range; sodium hyaluronate from Ichimaru Pharcos.

water soluble humectant

The compositions of the present invention may also contain a water-soluble humectant in an amount soluble in the aforementioned polar solvents, preferably from about 0.1% to about 10%, more preferably from about 1% to about 5%.

Water-soluble humectants that can be used in the present invention include niacinamide, panthenol, bacterial culture medium, allantoin, sodium lactate, PCA soda, amino acids, urea, sodium hyaluronate, chondroitin sulfate, collagen, elastin, pectin, Carrageenan, sodium alginate, trehalose, tuberose, chitin derivatives, chitosan derivatives, and mixtures thereof. Nicotinamide and panthenol are commercially available from, for example, Roche.

hydrophobic gel

When contained in a lipophilic carrier, the hydrophobic gel can hold polar and water-soluble materials in a stable manner in the hydrophobic gel. By varying the amount and type of carrier, compositions containing hydrophobic gels and varying viscosities and hardnesses can be prepared, ranging from stiff lipsticks to thin creams. Personal care compositions containing hydrophobic gels provide improved physical stability, such as stability and viscosity under phase conditions. Without being bound by theory, it is believed that the hydrophobic gels of the present invention have excellent thermal stability and are thus stable in environments exceeding room temperature.

The hydrophobic gels of the present invention are preferably prepared by a process comprising the following steps:

(a) mixing the mixture of cholesteryl derivative, oil swelling clay material and non-volatile oil at a speed of about 1500 rpm to about 3000 rpm, preferably about 1500 rpm to about 2500 rpm and about mixing at a temperature of from 80°C to about 95°C, preferably from about 88°C to about 92°C; and

(b) mixing the polar solvent with the mixture obtained in step (a) at least about 4000 rpm, preferably from about 4000 rpm to about 8000 rpm, more preferably from about 5000 rpm to about 7000 rpm speed and mixing at a temperature of from about 85°C to about 95°C, preferably from about 88°C to about 92°C.

Mixing can be performed using high shear mixers known in the art, such as those known as Homomixer or Disper. The hydrophobic gels of the present invention are preferably prepared in 2 steps by mixing at higher rotational speeds than are typically used to prepare personal care compositions. Without being bound by theory, it is believed that in step (a), the mixture of components is mixed at a controlled rotational speed so that the oil-swellable clay material swells to provide the cholesteryl hydroxystearate and subsequently added very The solvent is trapped in a sufficient space within the oil-swellable clay material, while the mixing is not too vigorous so as not to destroy the structure of the oil-swellable clay material. Without being bound by theory, it is believed that in step (b), the mixture of components is mixed at high rotational speed so that the polar solvent is effectively trapped in the oil-swellable clay material. This is believed to provide stability to the hydrophobic gel.

The hydrophobic gel thus obtained is then mixed with the carrier using conventional mixing means.

carrier

The compositions of the present invention comprise a carrier substantially free of water, surfactants and lecithin suitable for the desired application. By being substantially free of such components, it is believed that the hydrophobic gel provides physical stability, color stability and perspiration resistance to the composition. Furthermore, due to the substantial absence of surfactants, compositions that are mild to the skin can be obtained. By "substantially free" is meant that the composition does not contain active water, surfactants or lecithin. However, the invention does not exclude the use of components which may carry insignificant amounts of water, surfactants or lecithin as impurities or by-products. For example, it is known in the art that the aforementioned polar solvents can carry a small percentage of water. Such small amounts of water are acceptable in the compositions of the present invention. Typically, the level of any water, surfactant or lecithin should be less than about 1%, preferably less than about 0.5%, respectively, of the total composition.

Because they contain substantially no water, surfactants, or lecithin, the carriers of the present invention are lipophilic in nature. Any component compatible with the hydrophobic gel can be used as a carrier. Choose a carrier to prepare a variety of personal care compositions including lipsticks, foundations, pigmented or unpigmented skin or hair creams, antiperspirant sticks and hair sticks. Solid waxes, gelling agents, fixed oils as mentioned above, powders, coloring pigments and other lipophilic active ingredients can be incorporated into the carrier. The above-mentioned fixed oils may be contained in a carrier. The fixed oil used for the carrier may be the same or different from that used to prepare the hydrophobic gel.

For the preparation of lipsticks, foundations and creams, the carrier is selected from one or more solid waxes, fixed oils, powders and coloring pigments. The compositions of the present invention are especially suitable for the preparation of lipstick compositions comprising solid waxes and coloring pigments in a carrier.

solid wax

The compositions of the present invention may comprise solid waxes. To provide a lipstick composition, the solid wax comprises from about 10% to about 20%, preferably from 12% to about 15%, by weight of the total composition. The amount of solid wax is controlled to give the product the desired hardness and strength.

Solid waxes useful in the present invention are paraffin wax, microcrystalline wax, ozokerite wax, ceresin wax, carnauba wax, candelilla wax, eicosyl behenate, and mixtures thereof. Mixtures of various waxes are preferably used.

Commercially available solid waxes useful in the present invention include: candelilla wax NC-1630 from Noda wax, ozokerite SP-1021 from Strahl & Pitsh and eicosyl behenate from Cas Chemical.

Powders and Coloring Pigments

Compositions of the invention may comprise powders and colored pigments. To provide a lipstick composition, the powder and coloring pigment comprise from about 1% to about 30%, preferably from 2% to about 20%, by weight of the total composition. The amount and type of powder and coloring pigments are selected according to desired product characteristics such as shade, coverage, UV protection and different skin feel.

Materials that can be used in the present invention are clay inorganic powders such as talc, mica, sericite, silica, magnesium silicate, synthetic fluorophlogopite, calcium silicate, aluminum silicate, bentonite and montmorillonite; pearlescent pigments such as Aluminum oxide, barium sulfate, calcium hydrogen phosphate, calcium carbonate, titanium oxide, finely divided titanium oxide, zirconium oxide, zinc oxide, hydroxyapatite, iron oxide, iron titanate, ultramarine blue, Prussian blue, chromium oxide, hydroxide Chromium, cobalt oxide, cobalt titanate, mica coated with titanium oxide; organic powders such as polyester, polyethylene, polystyrene, methyl methacrylate resin, cellulose, 12-nylon, 6-nylon, styrene-acrylic Copolymers, polypropylene, vinyl chloride polymers, tetrafluoroethylene polymers, boron nitride, fish scale guanine, tar lake dyes and natural lake dyes.

A certain percentage of spherical pigments can be used. In a preferred embodiment, the material is selected according to the oil absorption capacity of the pigment. In a preferred embodiment, a pigment having a high oil-absorbing ability and a pigment having a low oil-absorbing ability are used in combination.

Hydrophobic treated pigments can also be used. Such hydrophobically treated pigments can be prepared by treating the above-mentioned substrate materials with hydrophobic treating agents, including silicones such as methylsiloxane, polydimethylsiloxane and permethicone. Fluoroalkylsilanes; fatty materials such as stearic acid; metal soaps such as aluminum dimyristate; aluminum hydrogenated tallow glutamate, hydrogenated lecithin, lauroyl lysine, aluminum salts of perfluoroalkyl phosphates, and mixtures thereof .

additional ingredients

The compositions of the present invention may comprise other additional ingredients which may be selected by those skilled in the art according to the desired characteristics of the final product and which are suitable to make the compositions more cosmetically or aesthetically acceptable or to render them of additional use Beneficial effect. Such additional components generally are used individually at levels not exceeding about 5% by weight of the composition.

The compositions of the present invention may also comprise non-volatile dispersed silicones commonly referred to as silicone gums. As used herein, the term "silicone gum" refers to a polyorganosiloxane material having a viscosity greater than or equal to 1,000,000 mPa·s at a temperature of 25°C. Silicone gums are believed to improve abrasion resistance such as durability. The mass molecular weight of "silicone gum" is typically above about 200,000, usually between about 200,000 and about 1,000,000. Specific examples include polydimethylsiloxane, poly(dimethylsiloxane methylvinylsiloxane) copolymer, poly(dimethylsiloxane diphenylsiloxane methylvinylsiloxane) oxane) copolymers and mixtures thereof. Commercially available silicone gums are described in the General Electric Silicone Rubber Product Data Sheets as SE 30, SE 33, SE 54 and SE 76.

The compositions of the present invention may also comprise silicone resins which are highly crosslinked polysiloxane systems. Silicone resins are believed to enhance spreadability and improve skin feel. The crosslinking is introduced by incorporation of trifunctional and tetrafunctional silanes together with monofunctional or difunctional silanes or both during the production of the polysiloxane resin. As is known in the art, the degree of crosslinking required to obtain a silicone resin will vary depending on the particular silane moieties incorporated into the silicone resin. In general, siloxane materials that have a sufficient content of trifunctional and tetrafunctional silane monomer units, and thus a sufficient level of crosslinking, so that they form hard or strong films when dry are considered silicon oxane resin. The ratio of oxygen atoms to silicon atoms is indicative of the level of crosslinking of a particular silicone material. Silicone materials having at least about 1.1 oxygen atoms per silicon atom are typically silicone resins of the present invention. Preferably, the ratio of oxygen 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- and methyl chloride Vinylsilanes and tetrachlorosilanes, of which methyl-substituted silanes are the most commonly used. Preferred are crosslinked silicone powders under the trade names Trefil E-505C, Trefil E-506C and 9506 Powder; suspensions of silicone elastomers under the trade names BY29-119 and BY29-122; and Latexes of silicone compounds under the tradenames SH5500, SC5570 and SM 5571; all available from Dow Corning.

Other silicone resins that may be used are silicone resin powders such as the material with the CTFA designation polymethylsilsequioxane, which is commercially available as Tospearl ^™ from Toshiba Silicones.

Silicone materials, especially silicone resins, are conveniently identified according to an abbreviated nomenclature system known to those skilled in the art as the "MDTQ" nomenclature. Under this nomenclature, silicones are described in terms of the presence of the various siloxane monomers that make up the silicones. In short, the symbol M refers to the monofunctional unit (CH ₃ ) ₃ SiO _0.5 ; D refers to the difunctional unit (CH ₃ ) ₂ SiO; T refers to the trifunctional unit (CH ₃ ) SiO _1.5 ; Q refers to the tetrafunctional Unit SiO2. "'" of unit symbols such as M', D', T' and Q' means a substituent other than methyl and must be specifically defined each time it occurs. Typical other substituents include groups such as vinyl, phenyl, amino, hydroxyl, and the like. Under the MDTQ system, polysiloxanes are completed in terms of symbolic subscripts denoting the total number of the various units in the polysiloxane, or in terms of their average value, or as molar ratios of the different units in specific indicated proportions expressed together with the molecular weight. A description of the alkane material. A higher molar amount of T, Q, T' and/or Q' relative to D, D', M and/or M' in a polysiloxane resin means a higher level of crosslinking. However, as noted above, the overall level of crosslinking can also be expressed by the ratio of oxygen to silicon.

Preferred silicone resins useful herein are MQ, MT, MTQ, MQ and MDTQ resins. Accordingly, the preferred siloxane substituent is methyl. Particularly preferred are MQ resins wherein the M:Q ratio is from about 0.5:1.0 to about 1.5:1.0 and the average molecular weight of the resin is from about 1000 to about 10,000. A commercially available MQ resin is eg trimethylsiloxysilicate available from Dow Corning under the tradename BY11-018.

The compositions of the present invention may also comprise water-soluble polymers. The water soluble polymers are believed to provide long-lasting results. Water soluble polymers that may be used include sodium carboxymethylcellulose, polyvinylpyrrolidone, polyvinyl alcohol, xanthan gum, agar, pulleran, bentonite, and mixtures thereof. Commercially available water soluble polymers include the Carbopol series from B.F. Goodrich Company, and PVP K-30 from G.A.F. Chemicals.

Other components that may be formulated into the compositions of the present invention are: preservatives such as benzyl alcohol, methylparaben, propylparaben, imidazolidinyl urea and EDTA and salts thereof, fragrance, UV and IR shielding and absorbents such as ethylhexyl methoxycinnamate and others.

Example

The following examples further describe and demonstrate preferred embodiments within the scope of the present invention. These examples are given only to illustrate the invention and are not to be construed as limiting the invention, since various changes can be made therein without departing from the spirit and scope of the invention.

Examples 1 to 5

The following cosmetic compositions were prepared from the following components by using the preparation methods described herein: serial number components Example 1 Example 2 Example 3 Example 4 Example 5 1 Quaternium-18 hectorite ^* 1 0.2 0.2 0.2 0.2 0.3 2 Cholesteryl Hydroxystearate ^* 2 3 6 5 5 3 Cholesteryl Macadamiate ^* 3 3 4 Phenyl trimethicone ^* 4 5 5 7 5 Liquid paraffin ^* 5 2 5 6 Niacinamide ^* 6 2 2 3.3 7 Urea ^* 7 2 8 Glycerin ^* 8 6 6 8 8 10 9 Ocerose wax ^* 9 4 4 4 4 4 10 Microcrystalline Wax ^* 10 1.5 1.5 1.5 1.5 1.5 11 Candelilla Wax ^* 11 5 5 5 5 5 12 Paraffin ^* 12 3 3 3 3 2 13 Diglyceryl Sebacate/Isopalmitate ^* 13 22.3 22.3 22.3 22.3 14 Absorb refined lanolin ^* 14 2.5 2.5 2.5 2.5 2.5 15 Lanolin Oil ^* 15 20 20 20 16 Carboxylate with isotope carbon 13 ^* 16 7 7 7 16 20.2 17 Isotridecyl Isononanoate ^* 17 3 3 3 5 10 18 Ethylhexyl Methoxycinnamate 3.5 19 preservative 0.5 0.5 0.5 0.5 0.5 20 powder pigment 15 15 15 20 30

Component Definition

^* 1 Quaternium-18 hectorite: Bentone 38 from Rheox.Inc.

^* 2 Cholesteryl hydroxystearate: Salacos HS available from Nisshin Oil Mills, Ltd.

^* 3Cholesteryl Macadamiate: Yofco MAC available from Nippon Fine Chemical

^* 4 Phenyl trimethicone: Silicone oil KF-56 from Shinetsu Silicone

^* 5 Liquid paraffin: Liquid paraffin available from Witco Chemicla

^* 6 Niacinamide: Niacinamide from Roche

^* 7 Urea: Urea obtained from Taisei Chemical

^* 8 Glycerin: Glycerin USP from Asahi Denka

^* 9 Ozorite: Ozorite SP-1021 from Strahl & Pitsh

^* 10 Microcrystalline wax: Multiwax 180-M Yellow from Witco Chemical

^* 11 Candelilla wax: Candelilla wax NC-1630 from Noda wax

^* 12 Paraffin wax: Paraffin wax FT-150 from Sazole

^* 13 Diglyceryl Sebacate/Isopalmitate: Salacos DGS-16 from Nisshin Oil Mills

^* 14 Absorbent Refined Lanolin: Crodalan SWL from Croda

^* 15 Lanolin Oil: Lanolin Oil from Croda

^* 16 Trioctanoin: Hexalan obtained from Nisshin Oil Mills, Ltd

^* 17 Isotridecyl isononanoate: Crodamol TN preparation from Croda

The cosmetic compositions of Examples 1 to 5 were suitably prepared as follows: First, the mixture of component numbers 1 to 5 was heated at 1500 rpm to 2500 rpm in a sealed tank at a temperature of 90° C. using a Homomixer. Speed spread. Separately, the mixture of component numbers 6 to 8 was dissolved at a temperature of 90°C. Add this solution (component numbers 6 to 8) to the dispersion liquid (component numbers 1 to 5), and use a Homomixer to further disperse the mixture at a speed of 5000 rpm to 7000 rpm to form a hydrophobic gel. glue. Next, heat the components No. 9 to 19 shown above in a sealed tank at a temperature of 80°C until dissolved, then add the above-mentioned hydrophobic gel and component No. 20, and heat the mixture at a temperature of 80°C using a disperser Disperse to make a lipophilic dispersion. The temperature of the resulting dispersion liquid was adjusted to a temperature of 80°C. Finally, this dispersion liquid was filled in an airtight container, and cooled to room temperature.

The embodiments represented by the above examples have many advantages. For example, Examples 1 to 3 provide lipsticks that provide improved lip softness, moisturization, and reduce visible lip lines and wrinkles around the lips. Embodiment 4 provides noodle noodles. Example 5 provides a loose powder. The foundations of Examples 4 to 5 provided improved softness, moisturization, and reduced visible lines and wrinkles on the skin, especially facial skin. The cosmetic compositions of Examples 1 to 5 also had improved stability in terms of physical hardness, color and perspiration.

It should be understood that the examples and specific implementations described in the present invention are only illustrative, and those skilled in the art may make various changes or changes thereto without departing from the spirit and scope of the present invention.

Claims (6)

1. personal care composition, said composition comprises by weight:

(a) about 5% to about 35% hydrophobic gel, this gel comprises:

(i) cholesteryl derivant;

(ii) oily expansive clay material;

(iii) non-volatile liquid oil; With

(iv) polar solvent; With

(b) be substantially free of the carrier of water, surfactant and lecithin.

2. as the personal care composition of lip pomade, foundation cream or cream, said composition comprises by weight:

(a) about 5% to about 35% hydrophobic gel, this gel comprises:

(i) cholesteryl derivant;

(ii) oily expansive clay material;

(iii) non-volatile liquid oil; With

(iv) polar solvent; With

(b) be substantially free of the carrier of water, surfactant and lecithin, this carrier comprises one or more solid wax and powder or coloring pigment.

3. be used as the compositions of the claim 1 of lip pomade, said composition comprises by weight:

(a) about 10% to about 20% hydrophobic gel, and this gel comprises by whole composition weight meter:

(i) about 2% to about 7% cholesteryl derivant;

(ii) about 0.1% to 1% oily expansive clay material;

(iii) about 2% to about 10% non-volatile liquid oil; With

(iv) about 0.01% to about 10% polar solvent; With

(b) be substantially free of the carrier of water, surfactant and lecithin, this carrier comprises solid wax and powder or coloring pigment.

4. the lip composition of claim 3, said composition also comprises the water-soluble wetting agent that exists with the amount that can be dissolved in polar solvent.

5. the lip composition of claim 4, wherein this water-soluble wetting agent is about 1% to about 5% nicotiamide, this polar solvent is a glycerol, and the content of glycerol be niacinamide content at least about 3 times.

6. the preparation of compositions method of claim 1, this method comprises the following step:

(a) with the mixture of cholesteryl derivant, oily expansive clay material and non-volatile liquid oil, mix with about 1500 rev/mins of extremely about 3000 rev/mins speed with in about 85 ℃ of extremely about 95 ℃ temperature;

(b) with the mixture that obtains in polar solvent and the step (a) to mix to about 92 ℃ temperature at least about 4000 rev/mins speed with at about 85 ℃; With

(c) carrier is mixed with the mixture of acquisition in the step (b).