CZ20496A3 - Detergents inhibiting transfer of dyestuff - Google Patents

Abstract

The detergent compositions comprise a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers further comprising specific selected detergent ingredients.

Description

Detergent inhibiting agents

Technical field

The invention relates to a composition and method for inhibiting dye transfer between fabrics during laundering. In particular, the present invention relates to detergent compositions comprising N-vinylimidazole N-vinylpyrrolidone copolymers.

BACKGROUND OF THE INVENTION

One of the most difficult persistent problems with modern fabric washing processes is the tendency of some dyed fabrics to release dye into the wash solution. The dye is then transferred to other fabrics which are washed together with said fabric.

One way to overcome this problem is to trap the released dye from the colored fabric in the form of a complex or to adsorb it before it has the opportunity to get caught on another article in the wash liquor.

Polymers that inhibit dye transfer are used in detergent compositions. One type of these polymers are homopolymers and copolymers of N-vinylimidazole. Examples of such polymers are described in previous documents known in the art, such as DE 2 814 287-A, which relates to detergent compositions containing 0.1 to 10% by weight of a water-soluble or dispersible homopolymer or copolymer of N-vinylimidazole in combination with anionic and / or nonionic surfactants and other detergent ingredients. EP 372 291 relates to a method for washing fabrics which are sensitive to discoloration. The scrubbing liquid comprises anionic / nonionic surfactants and water-soluble polymers, for example, polymers or copolymers of N-vinylimidazole, N-vinyloxazolidone or N-vinylpyrrolidone. EP 327 927 discloses a granular detergent additive comprising water-soluble polymeric compounds based on N-vinylpyrrolidone and / or N-vinylimidazole and / or N-vinyloxazolidone and cationic compounds. DE 4027832-A relates to non-electrolyte liquid detergent compositions comprising zeolite A, nonionic surfactants and dye transfer inhibiting polymers. Dye transfer inhibiting polymers are homopolymers and copolymers of N-vinylpyrrolidone, and / or N-vinylimidazole and / or N-vinyloxazolidone.

It has been found that N-vinylimidazole N-vinylpyrrolidone copolymers are very effective in inhibiting the transfer of solubilized or suspension dyes while at the same time increasing the detergency performance of the specific detergent ingredients used therewith.

This finding allows the formulation of detergent compositions which exhibit excellent cleaning and dye transfer inhibiting properties.

Another embodiment of the invention relates to a method for washing colored fabrics.

The essence of the invention

The invention relates to detergent compositions comprising a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers in combination with specific detergent ingredients.

DETAILED DESCRIPTION OF THE INVENTION

N-vinylimidazole N-vinylpyrrolidone copolymer

The composition of the invention comprises as the main detergent component a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers. N-vinylimidazole N-vinylpyrrolidone enhances the detergency performance of the detergent ingredients disclosed herein. N-vinylimidazole N-vinylpyrrolidone polymers have an average molecular weight ranging from 50001,000,000, more preferably from 20,000 to 200,000. Polymers which are particularly preferred for use in the detergent compositions of the present invention comprise a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers having an average molecular weight of the polymer of from 5,000 to 50,000, more preferably from 8,000 to 30,000, most preferably from 10,000 to 20,000. The range of average molecular weights was determined using a light scattering method as described herein. in Barth HG and Mays J.W. Chemical Analysis Volume 113 Modern Methods of Polymer Characterization. In addition, it has been found that excellent overall detergency performance of detergent compositions containing N-vinylimidazole N-vinylpyrrolidone copolymers can be achieved by selecting a range of specific average molecular weights from 5000 to 50,000, more preferably from 8,000 to 30,000, most preferably from

000 to 20 000.

N-vinylimidazole The N-vinylpyrrolidone copolymers, which are characterized by having a molecular weight in the stated range of average molecular weights, have excellent dye transfer inhibiting properties while not adversely affecting the cleaning performance of the detergent compositions herein.

N-vinylimidazole The N-vinylpyrrolidone copolymer disclosed herein has a molar ratio of N-vinylimidazole to N-vinylpyrrolidone in the range of 1 to 0.2, more preferably from 0.8 to 0.3, most preferably from 0.6 to 0.4.

N-vinylimidazole N-vinylpyrrolidone copolymers are linear or branched. The amount of N-vinylimidazole of N-vinylpyrrolidone present in the detergent compositions is in the range of 0.01 to 10% by weight, preferably 0.05 to 5% by weight, most preferably 0.1 to 1% by weight, based on the weight of the detergent composition.

Detergent ingredients

In addition to the N-vinylimidazole N-vinylpyrrolidone copolymers, the compositions of the invention contain certain specific detergent ingredients. It has been found that the combination of N-vinylimidazole N-vinylpyrrolidone copolymers with said detergent ingredients enhances the dye transfer inhibiting properties of N-vinylimidazole N-vinylpyrrolidone copolymers.

A first class of ingredients are surfactant systems wherein the surfactant is a non-alkylbenzene sulfonate salt containing a surfactant system, wherein the surfactant is selected from nonionic and / or anionic and / or cationic and / or ampholytic and / or zwitterionic and / or semipolar surfactants.

Preferred surfactant systems containing a non-alkylbenzene sulfonate salt for use herein include one or more nonionic and / or anionic surfactants as described herein. These surfactants have been found to be very useful because their presence increases the efficiency of inhibiting dye transfer of N-vinylimidazole N-vinylpyrrolidone copolymers.

The alkylphenol condensates of polyethylene oxide, polypropylene oxide and polybutylene oxide are suitable for use as nonionic surfactants in the surfactant systems of the present invention. Polyethylene oxide condensates are preferred. These compounds contain the condensation products of alkylphenols having an alkyl group of 6 to 14 carbon atoms, more preferably 8 to 14 carbon atoms, in a straight or branched chain configuration, with an alkylene oxide. In a preferred embodiment, the ethylene oxide is present in an amount of 2 to 25 moles, more preferably 3 to 15 moles of ethylene oxide per mole of alkyl phenols. Commercially available nonionic surfactants of this type include Igepal ™ CO-630 supplied by GAF Corporation and Triton ™ X-45, X-114, X-100 and X-102, all of which are supplied by the Rohm and Haas Company. These surfactants are generally called alkylphenolalkoxylates (e.g., alkylphenol ethoxylates).

The condensation products of primary and secondary aliphatic alcohols with 1 to 25 moles of ethylene oxide are suitable for use as a nonionic surfactant in the nonionic surfactant systems of the present invention. The alkyl chain of the aliphatic alcohol may be either straight or branched, primary or secondary, and generally contains 8 to 22 carbon atoms. Preferred are the condensation products of alcohols having an alkyl group containing 8 to 20 carbon atoms, more preferably 10 to 18 carbon atoms, with 2 to 10 moles of ethylene oxide per mole of alcohol. Examples of commercially available nonionic surfactants of this type are Tergitol ™ 15-S-9 (condensation product of C 1 -C 6 linear alcohol with 9 moles of ethylene oxide), Tergitol ™ 24-L-6 NMW (condensation product of C -C primary alcohol with 6 moles) narrow molecular weight ethylene oxide) (both supplied by Union Carbide Corporation), Neodol ™ 45-9 (C-C linear alcohol condensation product with 9 moles of ethylene oxide), Neodol ™ 23-6.5 (C-C linear alcohol condensation product with 6 , 5 moles of ethylene oxide), Neodol ™ 45-7 (C-C linear alcohol condensation product with 7 moles of ethylene oxide), Neodol ™ 45-4 (C-C linear alcohol condensation product with 4 moles of ethylene oxide) supplied by Shell Chemical Company and Kyro ™ EOB (9-mole ethylene oxide C-alcohol condensation product), available from The Procter and Gamble Company.

Suitable for use as nonionic surfactants in the surfactant systems of this invention are the alkyl polysaccharides disclosed in U.S. Pat. No. 4,565,647, Llenado, issued Jan. 21, 1986, which have a hydrophobic moiety comprising a hydrophobic moiety; from 6 to 30 carbon atoms, more preferably 10 to 16 carbon atoms, and a polysaccharide, for example a polyglycoside, a hydrophilic group containing 1.3 to 10, more preferably 1.3 to 3, most preferably 1.3 to 2.7 carbohydrate units. Any reducing carbohydrate containing 5 or 6 carbon atoms may be used, for example glucose, galactose, and galactosyl moieties may replace the glucosyl moieties of the molecule (the hydrophobic moiety is preferably attached at the 2-, 3-, 4-, etc. position to give glucose or galactose as opposed to glucoside or galactoside). For example, the inter-saccharide linkages are between one position of the next saccharide unit and the 2-, 3-, 4- and / or 6- position of the preceding saccharide unit.

Preferred are alkyl polyglycosides having the formula wherein R ² is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl or mixtures thereof, wherein the alkyl groups contain 10 to 18, more preferably 12 to 14 carbon atoms, n is 2 or 3, more preferably 2, t has a value from 0 to 10, more preferably 0, and x has a value of 1.3 to 10, more preferably 1.3 to 3, most preferably 1.3 to 2.7. The glycosyl is preferably derived from glucose. In preparing these compounds, an alcohol or an alkylpolyethoxy alcohol is first formed and then reacted with glucose or a source of glucose to form a glucoside (attachment at position 1). The additional glycosyl units are then attached between their 1-position and the 2-, 3-, 4- and / or 6-position of the preceding glycosyl unit, more preferably at the 2-position.

Other suitable nonionic surfactants are the condensation products of ethylene oxide with the hydrophobic base formed by the condensation of propylene oxide with propylene glycol, which are suitable for use as an addition of the nonionic surfactant of the nonionic surfactant systems of the present invention. The hydrophobic portion of these compounds will preferably have a molecular weight of 1500 to 1800 and will be insoluble in water. The addition of polyoxyethylene moieties to this hydrophobic moiety tends to increase the water solubility of the molecule as a whole and the liquid nature of the product is ensured up to a polyoxyethylene content of 50% of the total weight of the condensation product, corresponding to condensation up to 40 moles of ethylene oxide. Examples of compounds of this type are some of the commercially manufactured Pluronic ™ surfactants available from BASF.

The condensation products of ethylene oxide with the product resulting from the reaction of propylene oxide with ethylenediamine are also suitable for use as nonionic surfactants in the nonionic surfactant system of the present invention. The hydrophobic moiety of these products consists of the reaction product of ethylenediamine and an excess amount of propylene oxide and generally has a molecular weight of 2500 to 3000. This hydrophobic moiety is condensed with ethylene oxide to such an extent that the condensation product contains 40 to 80% polyoxyethylene and Examples of this type of nonionic surfactant are some of the commercially available Tetronic ™ compounds available from BASF.

In view of its use as nonionic surfactants in the surfactant system of the present invention, preferred are the polyethene alkylphenol condensates, the condensation products of primary and secondary aliphatic alcohols with 1 to 25 moles of ethylene oxide, alkyl polysaccharides and mixtures thereof. The most preferred is C _{and X4} -C alkyl phenol ethoxylates having from 3 to 15 ethoxy groups and _{C x} -C alkoholethoxylátům (preferably with a mean C) having from 2 to 10 ethoxy groups, or mixtures thereof.

Highly preferred nonionic surfactants are those containing polyhydroxy fatty acid amides having the formula:

R ² -C-Z-Ν

OR ¹ wherein R ¹ is H or R ¹ is Ci_4hydrokarbyl, 2-hydroxy ethyl-1, 2-hydroxypropyl or a mixture thereof, R ² is en_US _3i hydrocarbyl, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to a chain, or an alkoxylated derivative thereof. Preferably R ^{1 is} methyl, R ^{2 is a} straight C 1 alkyl or alkenyl chain such as coconut alkyl, or a mixture thereof, and Z is derived from reducing sugars such as glucose, fructose, maltose, lactose, in a reductive amination reaction.

When added to such laundry detergent compositions, the nonionic surfactant systems of the present invention improve the ability of the laundry detergent compositions to remove greasy and oily stains over a wide range of laundry conditions.

Highly preferred anionic surfactants are those containing alkyl alkoxylated sulfates, which in this patent represent water-soluble salts or acids having the formula RO (A) SO3M, wherein R is

IT.

nesubstituovanná ^C 1O ^-C 24 alkyl or hydroxyalkyl group having a C ^ -C ^ alkyl component, preferably a C _i2 -C _2o alkyl or hydroxyalkyl, more preferably C _i2 -C _is alkyl or hydroxyalkyl, A is an ethoxy or propoxy unit, m is greater than 0, typically between 0.5 and 6, more preferably between 0.5 and 6

3, and M is H or a cation, for example a metal cation (eg, sodium, potassium, lithium, calcium, magnesium, etc.), an ammonium cation or a substituted ammonium cation. Alkyl ethoxylated sulfates, like alkyl propoxylated sulfates, are contemplated in this patent. Specific examples of substituted ammonium cations are methyl, dimethyl, trimethylammonium and quaternary ammonium cations such as tetramethylammonium and dimethylpiperidine cations and alkylamine derived cations such as ethylamine, diethylamine, triethylamine, mixtures thereof, and the like. Exemplary surfactants are C -C alkyl polyethoxylate (1.0) sulfate (C -CE (LO) M), C _x -C _i2 alkyl polyethoxylate (2.25) sulfate (C _x -C _{x 2} E (2.25) M), C, _{X2 is} -C _x alkyl polyethoxylate (3.0) sulfate (C _x2 ~ C _x E (3.0) M, and C, _{X2 is} -C _x alkyl polyethoxylate (4.0) sulfate (C _x2 ~ C _x E (4.0) M, wherein M is conveniently selected from sodium and potassium.

Suitable anionic surfactants for use herein are alkyl ester sulfonate surfactants including linear esters of ^{Cg "C2o} carboxylic acids (i.e. fatty acids) which are sulfonated with gaseous SO _x from the work The Journal of the American Oil Chemists Society, 52 (1975) , 323-329. Suitable starting materials are natural fat derived from tallow, palm oil, etc.

Alkyl ester sulfonate surfactants, which are particularly preferred for use in laundry, are alkyl ester sulfonates having the structural formula:

O

R ³ -CH-C-OR ⁴

SO ³ M wherein R is C C2ohydrokarbyl, preferably an alkyl, or combination thereof, ^R4 is _Cx-Ce hydrocarbyl, preferably an alkyl, or combination thereof, and M is a cation which forms a water soluble salt with the alkyl ester sulfonate. Suitable salt-forming cations are sodium, potassium and lithium, and substituted or unsubstituted ammonium cations such as monoethanolamine, diethanolamine and triethanolamine. Preferably R ^{3 is} C 10 -C 6 alkyl and R ^{4 is} methyl, ethyl or isopropyl. Especially preferred are the methyl ester sulfonates wherein R ³ is a C-C alkyl, _ie.

Other suitable anionic surfactants include the alkyl sulfate surfactants hereof are water soluble salts or acids of the formula ROSO ₃ M wherein R preferably is a C ₂₄ -C _XO hydrocarbyl, preferably an alkyl or hydroxyalkyl having a C _io -C _2o alkyl component, more preferably C _i2 -C _ie alkyl or hydroxyalkyl, and M is H or a cation, e.g., an alkali metal cation (e.g. sodium, potassium, lithium), or ammonium or substituted ammonium (e.g. methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations such as tetramethylammonium and dimethylpiperidine cations and quaternary ammonium cations derived from alkylamines (such as ethylamine, diethylamine, triethylamine, mixtures thereof, and the like). C -C _{x2 IE} Typically, alkyl chains are preferred for lower wash temperatures (e.g. below about 50 ° C) and C _i -C _xe alkyl chains are preferred for higher wash temperatures ..... (e.g. above 50 ° C ).

Other anionic surfactants suitable for purification purposes may also be included in the laundry detergent compositions of the present invention. These include salts (e.g. sodium, potassium, ammonium and substituted ammonium salts such as mono-, di- and triethanolamine salts) of soap, _C -C linear alkyl benzene sulfonates _and primary or secondary _C, -C _aa alkane sulphonates, _and C - C ₄ -C ₄ olefin sulfonates, sulfonated polycarboxylic acids prepared by sulfonating the pyrolyzed alkaline earth citrate product, for example as described in British Patent No. 1,082,179, C _and -C ₄ alkyl polyglycol ether sulfates (containing up to 10 moles of ethylene oxide), alkyl glycerol sulfonates, glycerol sulfonates, fatty acid glycerol sulfonates , alkyl phenol, paraffin sulfonates, alkyl phosphates, isethionates such as the acyl isethionates, N-acyl taurates, alkyl succinamates and sulfosuccinates, monoesters of sulfosuccinate (especially saturated and unsaturated C _i -C _i monoesters) and diesters. sulfosuccinate (especially saturated and unsaturated C _i -C _e diesters), acyl sarcosinates, sulfates of alkylpolysaccharides such as the sulfates of alkylpolyglucoside (the nonionic nonsulfated compounds being described below), branched primary alkyl sulfates, alkyl polyethoxy carboxylates and the like as those of the formula RO (CH _and CH _and O) _x -CH _and COO-M +, wherein R is C _{and -Caa} alkyl, k is an integer from 0 to 10, and M is a soluble salt-forming cation. Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin and resin acids and hydrogenated resin acids present in or derived from tall oil. Further examples are described in Surface Active Agents and Detergents (Vol. I and II) by Schwartz, Perry and Berch. A number of such surfactants are also generally described in U.S. Pat.

December, 1975 to Laughlin and coworkers, at column 23, line 58 to column 29, line 23 (herein incorporated by reference).

When used, the laundry detergent compositions of the present invention typically comprise from about 1% to about 40%, preferably from about 3% to about 20%, by weight of such anionic surfactants.

It has been found that alkylalkoxylated sulfate surfactants exhibit more effective dye transfer inhibition than alkylbenzene sulfonate surfactants because alkylalkoxylated sulfate surfactants improve the dye transfer inhibition efficiency of N-vinylimidazole N-vinylpyrrolidone copolymers.

The laundry detergent compositions of the present invention may also contain cationic, ampholytic, zwitterionic and semipolar surfactants, or even nonionic and / or anionic surfactants, other than the surfactants described above. Preferably, cationic surfactant systems are used which contain nonionic and ampholytic surfactants.

Cationic detersive surfactants suitable for use in the laundry detergent compositions of the present invention are those having a single long chain hydrocarbyl group. Examples of such cationic surfactants include ammonium surfactants such as alkyldimethylammonium halides and surfactants having the formula:

[R ² (OR ³ ) y] [R ⁴ (OR ³ ) y] _and R ^with N + X where R ^a is an alkyl or alkylbenzyl group having from 8 to 18 carbon atoms in the alkyl chain, each R ³ is selected from the group comprising -CH-CHa-, -CHaCH (CH 3) -, -CH 2 CH (CH 2 OH) -, -CHaCH 2 CHa-, and mixtures thereof, each R ⁴ is selected from the group consisting of C 1 -C 4 alkyl, C 1 -C 4 hydroxyalkyl and ring benzyl structures formed by joining, two R ⁴ groups, -CH3CHOH CHOH-CHOHCOR ₃ ^e OH where R ^e is any hexose or hexose polymer having a molecular weight less than 1000, and hydrogen when y is not 0, ^R is the same as R ⁴ or is represented by an alkyl chain in which the total number of carbon atoms R ³ + R ⁵ does not exceed 18, each y is from 0 to 10 and the sum of y is from 0 to 15, and X is any compatible anion.

Preferred cationic detersive surfactants are water-soluble quaternary ammonium compounds which are suitable for this composition and have the formula:

YY YY * X (i)

3 4 ⁹ wherein R is C -C alkyl, each of R, R and R are independently C ^ -C ^ alkyl, C ^ -C ^ hydroxyalkyl, benzyl, and - _(C H _{4 O)} ^ Η wherein x has a value 2 to 5 and X is an anion. Not more than one of R ₂ , R 3 _, or is to be benzyl. The alkyl chain length for R _x, which is preferred, is C, _{X2 is} -C _i3, particularly where the alkyl group is a mixture of chain lengths derived from coconut or palm kernel fat or is derived synthetically by olefin or increase synthesis 0X0 alcohols. Preferred groups for R ₂ R ₃ and are methyl and hydroxyethyl groups and the anion X may be selected from the group consisting of ions of halide, methosulphate, acetate and phosphate.

Examples of suitable quaternary ammonium compounds having formula (i) to be used according to the invention are:

coconut trimethyl ammonium chloride or bromide, coconut methyldihydroxyethylamonium chloride or bromide, decyltriethylamonium chloride, decyldimethylhydroxyethylamonium chloride or bromide, C _i2 _ _with dimethyl hydroxyethyl ammonium chloride or bromide, coconut dimethyl hydroxyethyl ammonium chloride or bromide, myristyltrimethylamoniummethyl sulfate, lauryldimethylbenzylamonium chloride or bromide, lauryl dimethyl (ethenoxy) ₄ ammonium chloride or bromide, cholinesters (compounds having formula (i), wherein R is

-CH-O-C-C alkyl and R R R is methyl) dialkylimidazolines [compounds of formula (i)].

Other cationic surfactants useful herein are also described in U.S. Pat. No. 4,228,044, Cambre, assigned

October 14, 1980.

When the cationic surfactants of this patent are used, the laundry detergent compositions typically contain 0 to 25% by weight, more preferably 3 to 15% by weight, of these cationic surfactants.

Ampholytic surfactants are also suitable for use in the laundry detergent compositions of the present invention. These surfactants can be broadly described as aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of heterocyclic secondary and tertiary amines whose aliphatic radical has a straight or branched chain. One of the aliphatic substituents contains at least 8 carbon atoms, typically 8 to 18 carbon atoms, and at least one contains an anionic group conferring increased solubility in water, for example a carboxy, sulfonate or sulfate group. See U.S. Pat. U.S. Patent No. 3,929,678 to Laughlin et al., issued December 30, 1975, at column 19, lines 18-35, for examples of ampholytic surfactants.

When ampholytic surfactants are present, the laundry detergent compositions of the present invention typically comprise from 0 to 15% by weight, more preferably from 1 to 10% by weight of such surfactants.

Zwitterionic surfactants are also suitable for use in laundry detergent compositions. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. See U.S. Pat. No. 3,929,678, issued to Laughlin and co-workers on December 30, 1975, at column 19, line 38 to column 22, line 48, which exemplifies zwitterionic surfactants.

When the zwitterionic surfactants of this patent are used, the laundry detergent compositions typically comprise from 0 to 15% by weight, more preferably from 1 to 10% by weight, of these zwitterionic surfactants.

Semi-polar nonionic surfactants are a special category of nonionic surfactants comprising water-soluble amine oxides containing one alkyl moiety of from 10 to 18 carbon atoms and 2 moieties selected from the group consisting of alkyl and hydroxyalkyl groups of from 1 to 3 carbon atoms? water-soluble phosphine oxides containing one alkyl moiety having 10 to 18 carbon atoms and 2 moieties selected from the group consisting of alkyl and hydroxyalkyl groups containing 1 to 3 carbon atoms; and water-soluble sulfoxides containing one alkyl moiety of from 10 to 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyl groups of from 1 to 3 carbon atoms.

Semi-polar nonionic detergent surfactants include amine oxide surfactants having the formula

O

R ³ (OR ⁴⁾ x N ^(R) 2 wherein R ³ is alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures thereof, these groups contain from 8 to 22 carbon atoms,? R ⁴ is an alkylene or hydroxyalkylene group or a mixture thereof, and these groups contain 2 to 3 carbon atoms; x has a value from 0 to 3? and each R ^s is an alkyl or hydroxyalkyl group containing 1 to 3 carbon atoms or a polyethylene oxide group containing from 1 to 3 ethylene oxide groups. ^R groups may be attached to each other, e.g., through an oxygen or nitrogen atom, to form a ring structure.

These amine oxide surfactants in particular include ^C io ~ ^_c ia alkyldimethylamine oxides and C _Q -C _i2 alkoxyethyldihydroxyethylamin18 oxides.

When the semipolar nonionic surfactants are used in the laundry detergent compositions of the present invention, the laundry detergent compositions typically comprise 0-15% by weight, more preferably 1-10% by weight, of these semipolar nonionic surfactants.

The present invention further relates to laundry detergent compositions comprising at least 1% by weight, more preferably 3 to 65% by weight, and most preferably 10 to 25% by weight of total surfactants.

A second class of detergent ingredients which have been found to have beneficial effects in terms of enhanced dye transfer inhibition are enzymes selected from the group consisting of peroxidases, cellulases, or mixtures thereof.

The celluloses used according to the invention are both bacterial and fungal celluloses. Preferably, they have a pH optimum of 5 to 9.5. Suitable cellulases are described in U.S. Pat. No. 4,435,307 to Barbesgoard et al., which discloses fungal celluloses produced by Humicola insolens. Suitable cellulases are also disclosed in GB-A-2.075.028, GB-A-2.095.275 and DE-OS-2.247.832.

Examples of such cellulases are cellulases produced by Humicola insolens (Humicola grisea var. Thermoidea), particularly Humicola DSM 1800, and cellulases produced by Bacillus N or cellulase 212 produced by bacteria of the genus Aeromonas and cellulase extracted from hepatopancreas mollusc (Dolabella).

Other suitable cellulases are those derived from Humicola insulens having a molecular weight of 50 KDa, an isoelectric point of 5.5, and containing 415 amino acids. Such cellulase is described in co-pending European Patent Application No. 93200811.3, filed March 19, 1993. A particularly suitable cellulase is color-friendly cellulase. Examples of such cellulases are cellulases disclosed in European Patent Application No. 91202879.2, filed November 6, 1991, called Carezy (Novo). N-vinylimidazole N-vinylpyrrolidone copolymers have been found to synergistically improve the color appearance performance of cellulases.

Suitable lipase enzymes for use in detergent compositions include enzymes produced by Pseudomonas family microorganisms such as Pseudomonas stutzeri ATCC 19.154 described in British Patent 1,372,034. Suitable lipases are those that exhibit a positive immunological cross reaction with a lipase antibody produced by Pseudomonas fluorescens IAM 1057. This lipase is available from Amano Pharmaceutical Co. Ltd., Nagoya, Japan under the trade name Lipase P Amano ”, hereinafter referred to as Amano-P. Particularly suitable lipases are Ml Lipase (Ibis) and Lipolase (Novo).

Peroxidase enzymes are used in combination with sources of oxygen, such as percarbonate, perborate, persulfate, hydrogen peroxide, etc., and are used for bleaching a solution, i.e. to prevent transfer of dye pigments that are released from substrates during washing operations to other substrates present in the wash solution. Peroxidase enzymes are known in the art and include, for example, horseradish peroxidase, ligninase, and haloperoxidase such as chloroperoxidase and bromoperoxidase. Peroxidase-containing detergent compositions are described, for example, in PCT International Application WO 89/099813 and in European Patent Application No. EP-A-060899.

91202882.6, filed Nov. 6, 1991.

N-vinylimidazole N-vinylpyrrolidone copolymers have been found to synergistically improve the dye transfer inhibition efficiency of peroxidase.

Other detergent ingredients that may be included in detergent compositions for many reasons are cleaning enzymes. They serve, for example, to remove protein, sugar and triglyceride spots, and to prevent the transfer of released dye. Proteases, amylases, lipases, cellulases and peroxidases as well as mixtures thereof can be used. However, other types of enzymes may also be used. These enzymes are of any suitable plant, animal, bacterial, fungal or yeast type.

Enzymes are normally used in sufficient amounts, about 5 mg, more typically 0.05 to 3 mg, of active enzyme per gram of composition.

Suitable examples of proteases include subtilisins that are obtained from certain strains of Bacillus subtilis and B. licheniformis. Commercially available proteolytic enzymes suitable for removing protein spots are those sold under the trade names Alcalase, Savinase and Esperase by Novo Industries A / S (Denmark), Maxatase supplied by International Bio-Synthetics, Inc. (Netherlands), FN-base supplied by Genencor, and Optimase and Opticlean supplied by MKC.

In the category of proteolytic enzymes, the enzymes we call Proteasa A and Protease B are of particular interest for liquid detergent compositions herein. Protease A is described in European Patent Application 130,756. Protease B is described in European Patent Application Serial No. 87303761.8. Amylases include, for example, amylases obtained from a special strain B.

licheniformis, described in detail in British Patent No. 1,296,839 (Novo). Amylolytic proteins include, for example, Rapidase, Maxamyl (International Bio-Synthetics, Inc) and Termamyl (Novo Industries).

In liquid preparations, an enzyme stabilization system is preferably used. Enzyme stabilization techniques for aqueous detergent compositions are well known in the art. For example, one technique for stabilizing enzymes in aqueous solutions involves using free calcium ions from sources such as calcium acetate, calcium formate, and calcium propionate. Calcium ions can be used in combination with short chain carboxylic acid salts, preferably the formates are used. See, for example, U.S. Pat. The use of polyols such as glycerol and sorbitol, alkoxy alcohols, dialkyl glycoethers, mixtures of polyvalent alcohols with polyfunctional aliphatic amines (e.g., diethanolamine, triethanolamine, diisopropanolamine, etc.) and boric acid or alkali metal borates has also been suggested. Enzyme stabilization techniques are further described and exemplified in U.S. Pat. No. 4,261,868, U.S. Pat. No. 3,600,319 and European Patent Application No. 0 199 405, Application No. 86200586.5. Non-boric acid and borate stabilizers are preferred. Enzyme stabilization systems are also described, for example, in U.S. Pat. Nos. 4,261,868, 3,600,319 and 3,519,570.

Other suitable detergent additives which may be added are the enzyme oxidant scavengers described in co-pending European patent application N 92870018.6, filed January 31, 1992. Examples of such enzyme oxidant scavengers are ethoxylated tetraethylene polyamines.

Particularly preferred detergent additives are combinations with technologies which are also gentle on the color of the fabric. Examples of such technologies are those using the polyvinylpyrrolidone polymers described in EP 0 508 034 and polyamine N-oxide containing polymers described in co-pending European patent applications N 92202168.8 and N 93201198.4. Other examples are cellulase and / or peroxidases and / or color maintenance rejuvenation. Such metallocatalysts are described in co-pending European Patent Application No. 92870181.2. In addition, it has been found that the N-imidazole N-vinylpyrrolidone copolymers of the present invention eliminate or reduce the deposition of the metallocatalyst on the fiber, resulting in greater whiteness of the washed fabric.

Preferred detergent ingredients which may be added to the detergent compositions of the present invention also include bleaching compositions. The components of these bleaching agents are one or more oxygen bleaching agents and, depending on the bleaching agent selected, one or more bleach activators. When present, the bleaching compounds are typically present at a concentration of from about 1% to about 10% of the detergent composition. In general, bleaching agents are preferred components in non-liquid formulations, for example, granular detergents. If present, the amount of bleach activators will typically be 0.1 to 60%, more typically 0.5 to 40% of the bleaching composition.

The bleaching agent used in this patent is any of the bleaching agents suitable for use in detergent compositions, including oxygen bleaching agents and other compositions known in the art.

In a method aspect, this invention further provides a method for cleaning fabrics, fibers, textiles, at temperatures below 50 ° C, especially below about 40 ^e C, with a detergent composition containing N-vinylimidazole N-vinylpyrrolidone copolymers in combination with bleaching agents. An activated or non-activated bleaching agent may be used as the bleaching agent useful in the present invention.

One category of oxygen bleaching agents that can be used includes bleaching agents containing percarboxylic acid and salts thereof. Suitable examples of this class of agents include magnesium monoperoxyphthalate hexahydrate, magnesium salt of metachloroperbenzoic acid, 4-nonylamino-4-oxoperoxybutyric acid, and diperoxydodecanedioic acid. Such bleaching agents are described in U.S. Pat. U.S. Patent 4,483,781; Patent Application 740,446, European Patent Application 0 133 354, and U.S. Pat. Highly preferred bleaching agents also include 6-nonylamino-6-oxoperoxycaproic acid as described in U.S. Pat. No. 4,634,551.

Another category of bleaching agents that can be used includes halogen bleaching agents. Examples of hypohalite bleaching agents include, for example, trichloroisocyanuric acid, sodium and potassium dichloroisocyanurates, and N-chloro and N-bromoalkanesulfonamides. Such materials are normally added at a concentration of 0.5 to 10% by weight of the final product, more preferably 1 to 5% by weight.

Preferably, the bleaching agents suitable for use in the present invention include bleaching peroxy agents. Examples of suitable water-soluble solid bleaching peroxy agents include hydrogen peroxide release agents such as hydrogen peroxide, perborates, for example, perborate monohydrate, perborate tetrahydrate, persulfates, percarbonates, peroxydisulfates, perfosphates, and peroxyhydrates. Preferred bleaching agents are percarbonates and perborates.

Hydrogen peroxide releasing agents can be used in combination with bleach activators such as tetraacetylethylenediamine (TAED), nonanoyloxybenzenesulfonate (NOBS, described in US patent 4 412 934), 3,5-trimethylhexanoloxybenzenesulfonate (ISONOBS, described in EP 120 591) or pentaacetylglucose. which are perhydrolyzed to form a peracid as an active bleach component having an improved bleaching effect. Suitable activators are also citrate acyl esters, such as those described in co-pending European patent application no.

91870207.7.

Hydrogen peroxide is also present when an enzyme system (ie, enzyme and substrate) is added which is capable of generating hydrogen peroxide at the beginning or during washing and / or rinsing. Such enzyme systems are described in EP Patent Application 91202655.6, filed October 9, 1991.

Other bleaching peroxy agents suitable for use in the present invention include organic peroxyacids such as percarboxylic acids.

Bleaching agents other than oxygen bleaches are also known in the art and can be used in accordance with the present invention. One type of non-oxygen bleaching agent of particular interest is photoactivated bleaching agents such as sulfonated, zinc and / or phthalocyanine-containing aluminum. These materials can be applied to the substrate during the wash. After irradiation with light in the presence of oxygen, for example by hanging the clothes out to dry in daylight, sulfonated, zinc containing phthalo25 cyanine is activated, and as a result, the substrate is bleached. Preferred zinc-containing phthalocyanine and the photoactivation bleaching process are described in U.S. Pat. In a typical example, detergent compositions will contain from 0.025 to 1.25% by weight of a sulfonated, zinc-containing phthalocyanine.

Preferably, the compositions of the present invention comprise kaolin clay. It has been found that the N-vinylimidazole N-vinylpyrrolidone copolymers of the present invention are very compatible with kaolin because the dye transfer inhibition properties of the polymers are not negatively affected by the presence of the kaolin clays described herein. In addition, it was found that the softening ability of clays proposed for use together with N-vinylimidazole N-vinylpyrrolidone copolymers was maintained. Particularly suitable are softening fabric clays as described in EP 0 522 206.

The compositions of the invention may further comprise a filler. Any conventional filler system can be used in this case, including aluminosilicate materials, silicates, polycarboxylates and fatty acids, materials such as ethylenediaminetetraacetate, metal ion masking agents such as aminopolyphosphonates, particularly ethylenediaminetetramethylenephosphonic acid and diethylenetriaminepentamethylenephosphonate. Although phosphate builders are less preferred for environmental reasons, they can also be used in this case.

Suitable fillers are inorganic ion exchange materials, typically an inorganic, hydrated aluminosilicate, especially a hydrated synthetic zeolite, such as a hydrated zeolite A, X, B or HS.

Another suitable inorganic filler material is a layered silicate, for example SKS-6 (Hoechst). SKS-6 is a crystalline layered silicate containing sodium silicate (Na Si _and O _e ). _________ _______

Suitable polycarboxylates containing one carboxylic group are lactic acid, glycolic acid and ether derivatives of these acids as described in Belgian Patent Nos. 831 368, 821 369 and 821 370. Polycarboxylates containing two carboxyl groups include the water-soluble salts of succinic acid , malonic, (ethylenedioxy) di-acetic, maleic, diglycolic, tartaric, tartronic and fumaric and ether carboxylates described in German Offenlegenschrift No. 2,446,686 and 2,446,687 and U.S. Pat. No. 3,935,257, and the sulfinylcarboxylates disclosed in Belgian Patent No. 840,623. Polycarboxylates containing three carboxyl groups include, in particular, water-soluble citrates, aconitrates and citraconates, succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No. 1,379,241, lactoxysuccinates disclosed in Dutch application 7205873 and oxypolycarboxylate materials such as 2-oxa-1,3,3-propanetricarboxylates described in British Patent No. 1,387,447.

Polycarboxylates containing four carboxyl groups include the oxydisuccinates described in British Patent No. 1,261

829, 1,1,2,2-ethanethetracarboxylates, 1,1,3,3-propantetracarboxylates and 1,1,2,3-propantetracarboxylates. Polycarboxylates containing sulfo substituents include the sulfosuccinate derivatives disclosed in British Patent Nos. 1,398,421 and 1,398,422 and U.S. Pat. No. 3,936,448, and the sulfonated pyrolyzed citrates disclosed in British Patent No. 1,082,179, while polycarboxylates containing phosphone substituents are disclosed in British Patent No. 1,439,000.

Alicyclic and heterocyclic polycarboxylates include cyclopentane-cis, cis, cis-tetracarboxylates, cyclopentadiene pentacarboxylates, 2,3,4,5-tetrahydrofuran-cis, cis, cis-tetracarboxylates, 2,5-tetrahydrofuran-cis-dicarboxylates, 2,2,5,5 5-tetrahydrofurantetracarboxylates, 1,2,3,4,5,6-hexane hexacarboxylates and carboxymethyl derivatives of polyhydric alcohols such as sorbitol, mannitol and xylitol. Aromatic polycarboxylates include melitic acid and pyromellitic acid, and phthalic acid derivatives disclosed in British Patent No. 1,425,343.

Of the above, the preferred polycarboxylates are hydroxycarboxylates containing up to three carboxyl groups per molecule, in particular citrates.

Filler systems preferably used in these compositions include a mixture of a water-insoluble aluminosilicate builder such as zeolite A or layered silicate (sks / 6) with a water-soluble carboxylate chelating agent, such as citric acid.

A suitable chelating agent useful in the detergent compositions of the present invention is ethylenediamine-N, N'-disuccinic acid (EDDS) or its alkali metal, alkaline earth metal, ammonium or substituted ammonium salts, or mixtures thereof. Preferred EDDS compounds are the free acid form and the sodium or magnesium salt thereof. Examples of such preferred sodium salts of EDDS are Na ₂ EDDS and NazEDDS. Preferred magnesium salts of EDDS are MgEDDS and Mg ₂ EDDS. Magnesium salts are most preferred for use in the compositions of the invention.

In particular, in the form of liquid formulations, suitable fatty acid fillers are saturated or unsaturated C fatty acids or their soaps. Preferred saturated species have 12 to 16 carbon atoms in the alkyl chain. A preferred unsaturated fatty acid is oleic acid. A preferred builder system for use in granular compositions is a mixture of a water-insoluble aluminosilicate builder such as zeolite A and a water-soluble carboxylate chelating agent such as citric acid. Other filler materials that may be part of the filler system for use in granular compositions are inorganic materials such as alkali metal carbonates, bicarbonates, silicates, and organic materials such as organic phosphonates, aminopolyalkylene phosphonates, and aminopolycarboxylates. Other suitable water-soluble organic salts are homopolymeric or copolymeric acids, or salts thereof, wherein the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of this type are described in GB-A-1 596 756. Examples of such salts are polyacrylates having a molecular weight of 2000 to 5000 and their copolymers with maleic anhydride. Such copolymers have a molecular weight of 20,000 to 70,000, in particular 40,000.

The detergent builder salts are normally used in an amount of from 10 to 80% by weight of the composition, preferably from 20 to 70% by weight, most typically from 30 to 60% by weight.

Another suitable additive is a soap suds suppressor, exemplified by silicones and silicosilicone mixtures. Representative silicones are generally alkylated polysiloxane materials, while silicates are normally used in finely divided forms, such as silicate aerogels and xerogels, and hydrophobic silicates of various types. These substances are added as solid materials in which the suds suppressor is suitably contained in a water-soluble or water-dispersible impermeable carrier of a substantially non-surfactant detergent so that it can be released. As an alternative, a soap suds suppressor that is dissolved or dispersed in a liquid carrier and used by spraying onto one or more other components may be used.

A preferred silicone suds suppressor is described by Bartollot et al. Other particularly suitable soap suds suppressors are the self-emulsifying silicone soap suds suppressors described in German patent application DTOS 2,646,126 filed April 28, 1977. An example of such a compound is DC-544, which is commercially available from Dow Corning, and it is a siloxanglycol copolymer. Particularly suitable soap suds suppressors are suppressor systems comprising a mixture of silicone oils and 2-alkyl-alkanols. Suitable 2-alkyl-alkanols are 2-butyl-octanols, which are marketed under the trade name Isofol 12 R. Such a soap suds suppressor system is described in co-pending European patent application N 92870174.7, filed November 10, 1992.

Particular preference is given to the silicone suds suppressors described in co-pending European Patent Application No. 92201649.8. Said compositions comprise a silicone / silicate mixture in combination with a non-porous silicate such as Aerosil ^K.

The soap suds suppressors described above are normally used in concentrations of 0.001 to 2% by weight of the composition, preferably 0.01 to 1% by weight.

Other ingredients used in detergent compositions are also used, such as soil release agents, clay release agents, optical brighteners, abrasive agents, bactericidal agents, gloss loss inhibitors, coloring agents and / or encapsulated or unencapsulated fragrances.

Suitable anti-redeposition agents and soil release agents of the present invention are cellulose derivatives such as methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, and homo- and copolymeric polycarboxylic acids or salts thereof. Polymers of this type include polyacrylates and copolymers containing maleic anhydride-acrylic acid, which we have previously referred to as fillers, as well as copolymers of maleic anhydride with ethylene, methyl vinyl ether or methacrylic acid, wherein the maleic anhydride represents at least 20 mol% of the copolymer. These are normally used in concentrations of 0.5 to 10% by weight, more preferably 0.75 to 8% by weight, most preferably 1 to 6% by weight of the composition.

Preferred optical brighteners are of anionic nature. Examples are 4.4 ^x disodium bis- (2-diethanolamino-4-anilino 's-triazin-6-ylamino) stilbene-2: 2 ¹ disulphonate, disodium 4-4 ¹ -bis- (2-morpholin 4-anilino-s-triazin-6-ylaminostilben-2: 2 ¹ disulphonate, disodium 4,4 ¹ -bis- (2,4-dianilino-s-triazin-6-ylamino) stilbene-2: ^{2; L} - disulfonate, monosodium 4 ¹ , 4 ^{1; L-} bis- (2,4-dianiline-s-triazin-6-ylamino) stilbene-2-sulfonate, disodium 4,4-31 bis- (2-aniline-4- ( N-methyl-N-2-hydroxyethylamino) -s-triazin-6-ylamino> stilbene-2,2 '- disulphonate, disodium 4,4 ^x -bis- (4-phenyl-2, 1,3-triazol-2-yl) stilbene-2,2 ¹ disulphonate, disodium 4,4 ¹ bis (2-anilino-4- (l-methyl-2-hydroxyethylamino) -s-triazin-6-ylamino) stilbene-2,2 ¹ disulphonate and sodium 2 (stilbyl-4 ¹¹ (naphtho-1 ¹ ^ 2: 4,5) -1,2,3-triazol-2 ^{and L-sulfonate.}

Other suitable polymeric materials are polyethylene glycols, especially those having a molecular weight of 1000 to 10,000, preferably 2000 to 8000, preferably 4000. These materials are used in concentrations of 0.20 to 5% by weight, more preferably 0.25 to 2.5% by weight. %. These polymers and the aforementioned homo- and copolymeric polycarboxylate salts are excellent for improving whiteness preservation, in terms of textile ash deposition, and the cleansing properties of clay, protein-rich and oxidizable soils in the presence of transient metal impurities.

Clay release agents suitable for use in the compositions of this invention are conventional copolymers or terpolymers of terephthalic acid with ethylene glycol and / or propylene glycol units in various configurations. Examples of such polymers are described in commonly assigned U.S. Pat. Nos. 4116885 and 4711730, and European Published Patent Application No. 0 272 033. A particularly preferred polymer, in accordance with EP-A-0

272 033, is one having the formula (CH (PEG)) (ΡΟΗ) [(T-PO) (T-PEG)] T (PO ^X 3 '' 4 3 * 0, * 7 S ^X '0, 25 ^U '' 2, S '' ^{0.4 JX}

H) ((PEG) CH) * 0.2 S * * 4 3 3 * 0 7 - where PEG is - (OC _and HJO-, PO is (OC ₃ H ₆ O) and T is (pcOC 2 H 6) WHAT).

Modified polyesters such as random copolymers of dimethyl terephthalate, dimethyl sulfoisophthalate, ethylene glycol and 1-2 propanediol are also very suitable. The end groups are primarily sulfobenzoate and secondly monoesters of ethylene glycol and / or propanediol. The object is to obtain a polymer having sulfobenzoate groups at both ends. Primarily in this context, most of the copolymers herein have sulfobenzoate groups at their ends. However, some copolymers will not in all cases have such groups at the ends, and therefore their end groups may be ethylene glycol monoester and / or propane-1-2 diol, and will secondary to these types of molecules.

The polyesters selected here contain 46% by weight of dimethyl terephthalic acid, 16% by weight of propane-1,2-diol, 10% by weight of ethylene glycol, 13% by weight of dimethylsulfobenzoic acid and 15% by weight of sulfoisophthalic acid, and have a molecular weight of 3000. described in detail in EPA 311 342.

The detergent compositions of the present invention are in the form of liquid, pasty, gel or granular. Particularly preferred are detergent compositions having a pH of 7 to 11, more preferably 9 to 10.5. The granular compositions of the present invention may also be in compact form, i.e. they may have a relatively higher density than conventional granular detergents, i.e., a density of 550 to 950 g / L. In such a case, the granular detergent compositions of the present invention will contain minor amounts of the inorganic salt used as a filler compared to conventional granular detergents. Such typical inorganic salts are alkaline earth metal sulfates and chlorides, the most typical of which is sodium sulfate. Compact detergents typically contain a maximum of 10% salt as filler.

The liquid compositions of the invention may also be in concentrated form. In such a case, the liquid detergent compositions of the present invention will contain less water than conventional liquid detergents. Typically, the water content of the concentrated liquid detergent is less than 30% by weight, more preferably less than 20% by weight, most preferably less than 10% by weight, based on the total weight of the detergent composition. Another example of a liquid composition is a non-aqueous composition which is substantially free of water. Both aqueous and non-aqueous liquid compositions can be structured or unstructured.

The present invention also relates to a method of inhibiting the transfer of solubilized dyes and dye suspensions from one fabric to another that occurs during laundering of colorants.

The method comprises contacting fabrics with a wash solution as previously described.

The process of the invention is suitably applicable during the washing process. The washing process is preferably carried out at a temperature of 5 to 75 ° C, in particular 20 to 60 ° C, but the polymers are effective up to 95 ° C and above. The pH of said solution is preferably 7 to 11, in particular 7.5 to 10.5.

The method and compositions of the invention may also be used as detergent additive products. These additive products are used to enhance or enhance the performance of conventional detergent compositions.

The detergent compositions of the present invention include compositions that are used to clean substrates such as fabrics, fibers, hard surfaces, skins, and the like. Examples are hard surface cleaners (with or without abrasives), detergent detergents and dishwashing detergents for use in automatic dishwashers and for ... hand washing.

The following Examples illustrate specific examples of compositions of the present invention, but do not limit or otherwise limit the scope of the invention. The scope of the invention is determined by the claims which follow.

AND"

DETAILED DESCRIPTION OF THE INVENTION

Example I (A / B / C / D)

The liquid detergent composition of the present invention is prepared as follows:

% By weight based on the total weight of the detergent composition

AND (B) C D Linear alkylbenzenesulfonate 10 Fatty acid polyhydroxyamide - 5 - 3 Alkylalkoxylated sulfate - - 9 4 Alkylsulfate 4 8 4 15 Dec

Fatty acid alcohol ethoxylate

(c _and -c _s ) 12 12 12 5 Fatty Acid 10 10 10 10 Oleic acid 4 4 4 - Citric acid 1 1 1 1 Diethylenetriaminepentamethylene phosphonic acid 1.5 1.5 1.5 1.5 NaOH 3.4 3.4 3.4 3.4 Propanediol 1.5 1.5 1.5 1.5 Ethanol 10 10 10 10 Ethoxylated tetraethylenepentamine 0.7 0.7 0.7 0.7 Thermamy1 R 300 KNU / g 0.1 0.1 0.1 0.1 Carezyme R 5000 CEVU / g 0.02 0.02 0.02 0.02 Protease 40 mg / g 1,8 1,8 1,8 1,8 Lipolasa R 100 KLU / g 0.1 0.1 0.1 0.1 Endoglucanase A 5000 CEVU / g 0.5 0.5 0.5 0.5 Soap foam suppressor (ISOFOL ¹ ) 2.5 2.5 2.5 2.5 H 0 ..a and -. . . 7.5 7.5  -

N-vinylimidazole N-vinylpyrrolidone new copolymer Minor additives

0,1-1 0,1-1 0,1-1 up to 100%

0,1-1

Example II (A / B / C / D)

The liquid detergent composition of the present invention is prepared as follows:

% By weight based on the total weight of the detergent composition

AND (B) C D Linear alkylbenzenesulfonate 10 «« Fatty acid polyhydroxyamide - 5 - 3 Alkylalkoxylated sulfate - - 9 4 Alkylsulfate 4 8 4 15 Dec

Fatty acid alcohol ethoxylate

(C _and -c) 12 12 12 5 Fatty acid 10 10 10 10 Oleic acid 4 4 4 Citric acid 1 1 1 1 Diethylenetriaminepentamethylene 1.5 1.5 1.5 1.5 phosphonic acid NaOH 3.4 3.4 3.4 3.4 Propanediol 1.5 1.5 1.5 1.5 Ethanol 10 10 10 10 Ethoxylated tetraethylenepentamine 0.7 0.7 0.7 0.7 Thermamyl R 300 KNU / g 0.1 0.1 0.1 0.1 Carezyme R 5000 CEVU / g 0.02 0.02 0.02 0.02 Protease 40 mg / g 1,8 1,8 1,8 1,8 Lipolasa R 100 KLU / g 0.1 0.1 0.1 0.1 Endoglucanase A 5000 CEVU / g 0.5 0.5 0.5 0.5 Soap Foam Suppressor (ISOFOL *) 2.5 2.5 2.5 2.5 ^H and ° 7.5 7.5 - - N-vinylimidazole N-vinylpyrrolido- new copolymer 0,1-1 0,1-1 0,1-1 0,1-1 Metal catalyst 0,1-1 0,1-1 0,1-1 0,1-1 Poly (4-vinylpyridine) -N-oxide 0,1-1 0,1-1 0,1-1 0,1-1 Kaolin clay - - 4 4 Peroxidase 0.1 0.1 - - Minor admixtures to 100%

Example III (A / B / C / D / E)

The compact granular detergent composition of the present invention is prepared in the following composition:

% By weight based on total detergent composition

AND (B) C D E Linear alkylbenzenesulfonate 11, 4 Fatty Acid Polyhydroxyamide - 10 - - - Alkylalkoxylated sulfate - - 9 9 9 Tallow alkyl sulfate 1.80 1.80 1.80 1.80 1.80 C _4-6 alkylsulfate 3.00 3.00 3.00 3.00 3.00 7 x ethoxylated C alcohol 4.00 4.00 4.00 4.00 4.00 11 x ethoxylated alcohol of tallow 1.80 1.80 1.80 1.80 1.80 Dispersing agent 0.07 0.07 0.07 0.07 0.07 Silicone fluid 0.80 0.80 0.80 0.80 0.80 Trisodium citrate 14.00 14.00 14.00 14.00 14.00 Citric acid 3.00 3.00 3.00 3.00 3.00 Zeolite 32.50 32.50 32.50 32.50 32.50 Di ethylenentri aminpentamethylenen- phosphonic acid 0.6 0.6 0.6 0.6 0.6 Maleic acid copolymer and acrylic acid 5.00 5.00 5.00 5.00 5.00 Cellulase (active protein) 0.03 0.03 0.03 0.03 0.03 Alkalasa / BAN 0.60 0.60 0.60 0.60 0.60 Lipolasa 0.36 0.36 0.36 0.36 0.36 Sodium silicate 2.00 2.00 2.00 2.00 2.00 Sodium sulfate 3.50 3.50 3.50 3.50 3.50 Percarbonate - - - 20 May Perborate 15 Dec 15 Dec 15 Dec - - TAED 5 - 5 5 N-vinylimidazole N-vinylpyrrolido- new copolymer o, 1-1 0, 1-1 0,1-1 0 , 1-1 0 , 1-1 Minor admixtures to 100 %

Example IV (A / B / C / D / E)

The compact granular detergent composition of the present invention is prepared in the following composition:

% By weight based on the total weight of the detergent composition

AND (B) C D E Linear alkylbenzenesulfonate 11, 4 - Fatty Acid Polyhydroxyamide - 10 - - - Alkylalkoxylated sulfate - - 9 9 9 Tallow alkyl sulfate 1.80 1.80 1.80 1.80 1.80 C _4-6 alkyl sulfate 3.00 3.00 3.00 3.00 3.00 7 * x ethoxylated C ₄ alcohol 4.00 4.00 4.00 4.00 4.00 etχ ethoxylated tallow alcohol 1.80 1.80 1.80 1.80 1.80 Dispersing agent 0.07 0.07 0.07 0.07 0.07 Silicone fluid 0.80 0.80 0.80 0.80 0.80 Trisodium citrate 14.00 14.00 14.00 14.00 14.00 Citric acid 3.00 3.00 3.00 3.00 3.00 Zeolite 32.50 32.50 32.50 32.50 32.50

Diethylenetriaminepentamethylene

phosphonic acid 0.6 0.6 0.6 0.6 0.6 Maleic acid copolymer and acrylic acid 5.00 5.00 5.00 5.00 5.00 Cellulase (active protein) 0.03 0.03 0.03 0.03 0.03 Savinase 0.60 0.60 0.60 0.60 0.60 Lipolasa 0.36 0.36 0.36 0.36 0.36 Sodium silicate 2.00 2.00 2.00 2.00 2.00 Sodium sulfate 3.50 3.50 3.50 3.50 3.50 Percarbonate - - - 20 May Perborate 15 Dec 15 Dec 15 Dec - TAED 5 - 5 5 -

N-vinylimidazole N-vinylpyrrolido-

new copolymer 0,1-1 0,1-1 0,1-1 0,1-1 0,1-1 Metal catalyst 0,1-1 0,1-1 0,1-1 0,1-1 0,1-1 Poly (4-vinylpyridine) -N-oxide 0,1-1 0,1-1 0,1-1 0,1-1 0,1-1 Kaolin clay - - - 4 4 Peroxidase - 0.1 0.1 - Minor admixtures to 100 %

The above compositions (Examples 1.11 A / B / C / D and Examples III, IV A / B / C / D / E) had excellent properties, showed excellent washing and detergency performance, and also had excellent performance in terms of gentle behavior against colors of dyed fabrics and from the point of view of washing together colored and white fabrics.

»»

Industrial applicability

The invention relates to detergent compositions comprising a polymer selected from N-vinylimidazole N-vinylpyrrolidone copolymers in combination with specific detergent additives.

<P \ j 2-θφ £

Claims (10)

The patent claims that the copolymer comprises A detergent composition comprising N-vinylimidazole N-vinylpyrrolidone and characterized in that the composition further comprises an alkylbenzene sulfonate-free surfactant system. 2. A detergent composition according to claim 1 wherein said alkylbenzene sulfonate-free surfactant system comprises a surfactant selected from the group of alkylalkoxylated sulfates. 3. A detergent composition comprising N-vinylimidazole N-vinylpyrrolidone copolymer and characterized in that the composition further comprises an enzyme selected from the group of cellulas or peroxidase or a mixture thereof. 4. A detergent composition comprising N-vinylimidazole N-vinylpyrrolidone copolymer and characterized in that the composition further comprises kaolin clay. 5. A detergent composition according to claims 1 to 4 comprising N-vinylimidazole N-vinylpyrrolidone copolymer characterized in that it has an average molecular weight in the range of 5000 to 50,000. 6. A detergent composition according to claim 5 wherein said copolymer has an average molecular weight of 8000 to 30,000. The detergent composition of claim 6, wherein said copolymer has an average molecular weight in the range of 10,000 to 20,000. 8. A detergent composition as claimed in any one of claims 1 to 7 in the form of a granular, liquid, gel or pasty form. 9. A detergent composition according to claims 1-8, wherein the detergent composition has a value between 7 and 11, more preferably between 9 and 10.5. 10. A detergent composition according to claims 1 to 9, wherein the detergent additive is in the form of a dust-free granule or liquid.