EP1438346A1

EP1438346A1 - Cotton active, dirt removing urethane-based polymers

Info

Publication number: EP1438346A1
Application number: EP02785207A
Authority: EP
Inventors: Josef Penninger; Wolfgang Denuell; Rainer SCHÖNFELD
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2001-10-22
Filing date: 2002-10-12
Publication date: 2004-07-21
Also published as: JP4567334B2; CN1575308A; JP2005506417A; WO2003035712A1; CN1575308B; US20040224871A1; HK1070376A1; MXPA04003737A; US7098179B2

Abstract

The aim of the invention is to improve the cleaning power of detergents when textiles consisting of or containing cotton are washed. This is substantially achieved by incorporating a urethane-based polymer.

Description

"Cotton-active dirt-releasing polymers based on urethane"

The present invention relates to the use of certain dirt-releasing polymers for enhancing the cleaning performance of detergents when washing textiles, in particular those which consist of cotton or contain cotton, and detergents which contain such dirt-releasing polymers.

In addition to the ingredients that are indispensable for the washing process, such as surfactants and builder materials, detergents generally contain other ingredients, which can be summarized under the term washing aids and which include such different active ingredient groups as foam regulators, graying inhibitors, bleaching agents, bleach activators and color transfer inhibitors. Such auxiliary substances also include substances which impart dirt-repellent properties to the laundry fiber and which, if present during the washing process, support the dirt-removing ability of the other detergent components. The same applies analogously to cleaning agents for hard surfaces. Such soil release agents are often referred to as "soil release" actives or because of their ability to make the treated surface, for example the fiber, dirt repellent, "soil repellents". Because of their chemical similarity to polyester fibers in textiles made from this material, particularly effective dirt-releasing active ingredients are copolyesters which contain dicarboxylic acid units, alkylene glycol units and polyalkylene glycol units. Soil-removing copolyesters of the type mentioned and their use in detergents have been known for a long time.

For example, German Offenlegungsschrift DT 16 17 141 describes a washing process using polyethylene terephthalate-polyoxyethylene glycol copolymers. German laid-open specification DT 22 00 911 relates to detergents, the nonionic surfactant and a copolymer of polyoxyethylene glycol and polyethylene terephthalate contain. German laid-open specification DT 22 53 063 mentions acidic textile finishing agents which contain a copolymer of a dibasic carboxylic acid and an alkylene or cycloalkylene polyglycol and optionally an alkylene or cycloalkylene glycol. Polymers made from ethylene terephthalate and polyethylene oxide terephthalate, in which the polyethylene glycol units have molecular weights from 750 to 5000 and the molar ratio of ethylene terephthalate to polyethylene oxide terephthalate is 50:50 to 90:10, and their use in detergents are described in the German patent DE 28 57 292 described. Polymers with a molecular weight of 15,000 to 50,000 made of ethylene terephthalate and polyethylene oxide terephthalate, the polyethylene glycol units having molecular weights of 1000 to 10,000 and the molar ratio of ethylene terephthalate to polyethylene oxide terephthalate being 2: 1 to 6: 1, can be according to the German published patent application DE 33 24 258 can be used in detergents. European patent EP 066 944 relates to textile treatment agents which contain a copolyester of ethylene glycol, polyethylene glycol, aromatic dicarboxylic acid and sulfonated aromatic dicarboxylic acid in certain molar ratios. European or European patent EP 185 427 discloses methyl or ethyl end-capped polyesters with ethylene and / or propylene terephthalate and polyethylene oxide terephthalate units and detergents which contain such a soil release polymer. European patent EP 241 984 relates to a polyester which, in addition to oxyethylene groups and terephthalic acid units, also contains substituted ethylene units and glycerol units. From the European patent EP 241 985, polyesters are known which, in addition to oxyethylene groups and terephthalic acid units, contain 1,2-propylene, 1,2-butylene and / or 3-methoxy-1,2-propylene groups and glycerol units, and with C, - C ₄ -alkyl groups are end group-capped. European patent EP 253 567 relates to soil release polymers with a molecular weight of 900 to 9000 made of ethylene terephthalate and polyethylene oxide terephthalate, the polyethylene glycol units having molecular weights of 300 to 3000 and the molar ratio of ethylene terephthalate to polyethylene oxide terephthalate 0.6 to Is 0.95. European patent application EP 272 033 discloses polyesters with poly-propylene terephthalate and polyoxyethylene terephthalate units which are end group-capped by C _M alkyl or acyl radicals. European patent EP 274 907 describes sulfoethyl end-capped terephthalic Soil-release polyester containing latex. In European patent application EP 357 280, soil-release polyesters with terephthalate, alkylene glycol and poly-C ₂ -glycol units are produced by sulfonation of unsaturated end groups. German patent application DE 26 55 551 describes the reaction of such polyesters with polymers containing isocyanate groups and the use of the polymers prepared in this way to prevent dirt from being re-absorbed when washing synthetic fibers. From the German patent DE 28 46 984, detergents are known which contain a reaction product of a polyester with a prepolymer containing terminal isocyanate groups, obtained from a diisocyanate and a hydrophilic nonionic macrodiol, as the dirt-removing polymer.

The polymers known from this extensive state of the art have the disadvantage that they have no or only inadequate effectiveness in textiles which do not consist, or at least not predominantly, of polyester. A large part of today's textiles, however, consists of cotton or cotton-polyester blended fabrics, so that there is a need for polymers which are more effective at removing soiling from such textiles in the case of greasy soiling.

Surprisingly, it has been found that this object can be achieved by using certain urethane-based polymers.

The invention relates to the use of dirt-releasing polymers which are obtainable by polymerizing polyisocyanates with polymeric polyols with an average molecular weight of more than 1000 D and a water solubility at 20 ° C. of over 300 g of polymer per liter and polyols with an average molecular weight of less than 12000 D and a water solubility at 20 ° C of less than 100 g per liter and optionally other polyols and their mixtures, to enhance the cleaning performance of detergents when washing textiles that are made of cotton or contain cotton.

The washing performance-enhancing effect of the polymers to be used according to the invention is particularly pronounced when used repeatedly, that is to say in particular for Removal of soiling from corresponding textiles that had already been washed in the presence of the polymer before they were soiled.

Preferred polymeric polyols with an average molecular weight of over 1000 D and a water solubility at 20 ° C. of over 300 g of polymer per liter can be described by the general formula I,

W [(O- (CH ₂ -) _a ) _b -OH] _c (I)

in which a for a number from 1 to 3, b for a number from 3 to 800, preferably from 17 to

800 and c represents a number from 1 to 6, where b can vary within one molecule;

W can stand for H- with c = 1,

- (CH ₂ ) _d - with c = 2, where d stands for a number from 2 to 12,

-CH ₂ - (CH-) _e -CH ₂ - with c = e + 2, where e stands for a number from 1 to 4,

- (CH2) _e -CH (CH ₂ -) - (CH ₂ ) _e - with c = 3, where e is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or one

Radical containing both aliphatic and aromatic groups.

A particularly preferred polymeric polyol with high water solubility is polyethylene glycol, very particularly preferred is polyethylene glycol with an average molecular weight between 3000 and 12000 D.

Preferred polyols with an average molecular weight of less than 12,000 D and a water solubility at 20 ° C. of less than 100 g per liter can be described by the general formulas (II) to (V)

HO-X-CHY-OH (II),

in which X represents a linear or branched alkylene group having 1 to 48 carbon atoms and Y represents hydrogen or an alkyl group having 1 to 24 carbon atoms, V [(O - ((CH ₂ -) _f CHR ¹ -) ΛOH] _i (III)

in which R ^{1 is} hydrogen or an alkyl group having 1 to 6 carbon atoms, f is a number of

0 to 3, g is a number from 1 to 4 and h is a number from 5 to 300, where R ¹ , f and h can vary within one molecule;

V can stand for H- with i = 1,

- (CH ₂ ) _k - with i = 2, where k is a number from 2 to 12,

-CH ₂ - (CH -), - CH ₂ - with i = 1 + 2, where 1 stands for a number from 1 to 4,

- (CH ₂ ) _r CH (CH ₂ -) - (CH ₂ ) _r with c = 3, where 1 is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or one

Radical containing both aliphatic and aromatic groups

HO ((- CHR ² (-CH ₂ ) _n -O) ₀ -Cy -C (R ³ ) (R ⁴ ) -Cy- (O - ((CH ₂ -) _p CHR ² -) _q ) _r OH ( IV)

in which Cy represents phenylene or cyclohexylidene, R ^{2 represents} hydrogen or an alkyl group having 1 to 6 C atoms, R ³ and R ⁴ independently of one another represent hydrogen or an alkyl group having 1 to 6 C atoms or together represent an aliphatic bridge (CR ⁵ R ⁶ ) form _S , in which s represents a number from 4 to 6 and R ⁵ and R ⁶ independently of one another are H or an alkyl group having 1 to 6 C atoms or a double bond, where R ⁵ and R ^{6 are} within a bridge can vary, m and p independently of one another for a number from 0 to 3, n and q independently of one another for a number of

1 to 4 and o and r independently of one another represent a number from 0 to 20, where R ² , m and p can vary within one molecule;

V [-OC (O) - (C (R ⁷ ) (R ⁸ )) _t - (CHOH) _u - (CH ₂ ) _w -H] _i (V)

in which R ⁷ and R ^{8 can} independently represent H or an alkyl group having 1 to 6 C atoms or a multiple bond to the adjacent C atom, where R ⁷ and R ⁸ can vary within one molecule, t and w independently of one another are a number from 0 to 20 and u is the number 0 or 1, where t, u and w can vary within one molecule, V can stand for H- or CH ₃ - with i = 1,

- (CH ₂ ) _k - with i = 2, where k is a number from 2 to 12,

-CH ₂ - (CH-) _r CH ₂ - with i = 1 + 2, where 1 is a number from 1 to 4,

HO-CH ₂ - (CH-) _r CH ₂ - with i = 1 + 1, where 1 stands for a number from 1 to 4,

Radical containing both aliphatic and aromatic groups.

Polymeric polyols according to formula (III) are preferably derived from 1,2-propylene glycol, 1,2-butanediol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol and / or neo -pentylglycol. Particularly preferred polymeric polyols according to formula (III) are polypropylene oxide and polytetrahydrofuran with average degrees of polymerization in the range from 3 to 70.

Polymeric diols according to formula (IV) are preferably derived from bisphenol A or bisphenol F. Particularly preferred diols according to formula (IV) are propoxylated and ethoxylated bisphenol A.

Preferred polyols according to formula (V) are castor oil, partially hydrogenated castor oil, partially hydrolyzed castor oil and their derivatives.

Preferred further polyols are dimefylolpropionic acid and its salts, N-alkyldiethanolamine and its salts and water-soluble polymeric polyols with an average molecular weight of less than 1000 D and a water solubility at 20 ° C. of over 500 g of polymer per liter, which correspond to the general formula I, in where a is a number from 1 to 3, b is a number from 3 to 16 and c is a number from 1 to 6, where b can vary within one molecule. In these connections W can stand for H- with c = 1,

- (CH ₂ ) _d - with c = 2, where d stands for a number from 2 to 12, -CH ₂ - (CH-) _e -CH ₂ - with c = e + 2, where e stands for a number of 1 to 4, - (CH ₂ ) _e -CH (CH ₂ -) - (CH ₂ ) _e - with c = 3, where e is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or a radical which contains both aliphatic and aromatic groups.

The particularly preferred polyols also include polyethylene glycol with an average molecular weight of 300 D to 1000 D.

In a further preferred embodiment of the invention, polymers are used which are obtainable by using mixtures of at least two polymeric diols of different degrees of polymerization (b in formula I), the degrees of polymerization of the two polymer diol variants according to formula (I) preferably being at least about Distinguish factor 10, for example when using a first polymeric diol with a degree of polymerization in the range from 8 to 15 and a second polymeric diol with a degree of polymerization in the range from 100 to 150.

The polyisocyanates are compounds of the general structure (O = C = N-) _t Z, where t is the number 2 or 3, Z is an aliphatic or aromatic radical or a radical which has both aliphatic and aromatic groups contains. Among these, preferred are compounds in which the isocyanate groups are bonded to an aromatic radical via alkylene groups, or in which the isocyanate groups are bonded to aromatic radicals which are bonded to one another directly or via an alkylene group. In a preferred embodiment of the invention, the polyisocyanate is a diisocyanate.

Examples of suitable diisocyanates are 1,5-naphthylene diisocyanate, 4,4'-diphenylmethane diisocyanate (MDI), hydrogenated MDI (H ₁₂ MDI), xylylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), 4,4'-diphenyldimethylmethane diisocyanate, di- and Tetraalkyldiphenylmethane diisocyanate, 4,4'-dibenzyldiisocyanate, 1,3-

Phenylene diisocyanate, 1,4-phenylene diisocyanate, the isomers of tolylene diisocyanate (TDI), 1-methyl-2,4-diisocyanato-cyclohexane, 1,6-diisocyanato-2,2,4-trimethylhexane, 1,6-diisocyanato-2, 4,4-trimethylhexane, l-isocyanatomethyl-3-isocyanato-l, 5,5-trimethylcyclohexane (IPDI), chlorinated and brominated diisocyanates, phosphorus-containing diisocyanates, 4,4'-diisocyanatophenylperfluoroethane, tetramethoxybutane 1,4-diisocyanate, Butane 1,4-di isocyanate, hexane-1,6-diisocyanate (HDI), dicyclohexylmethane diisocyanate, cyclohexane-1,4-diisocyanate, ethylene diisocyanate, phthalic acid bis-isocyanatoethyl ester, furthermore diisocyanates with reactive halogen atoms, such as l-chloromethylphenyl-2,4-di- isocyanate, 1-bromomethylphenyl-2,6-diisocyanate, 3,3-bis-chloromethylether-4,4'-diphenyl-diisocyanate. Sulfur-containing polyisocyanates are obtained, for example, by reacting 2 mol of hexamethylene diisocyanate with 1 mol of thiodiglycol or dihydroxydi- hexyl sulfide. Other important diisocyanates are trimethylhexamethylene diisocyanate, 1,4-diisocyanatobutane, 1,12-diisocyanatododecane and dimer fatty acid diisocyanate. Tetramethylene, hexamethylene, undecane, dodecamethylene, 2,2,4-trimethylhexane, 1,3-cyclohexane, 1,4-cyclohexane, 1,3- or 1,4-tetramethylxylene are particularly suitable. , Isophorone, 4,4-dicyclohexylmethane and lysine ester diisocyanate. 4,4'-Diphenylmethane diisocyanate and / or tetramethylxylene diisocyanate are very particularly preferred, in particular the m-TMXDI.

The molar ratio of polyol - that is the sum of polymeric polyols according to formula (I) and polyol according to formulas (II) to (V) - to polyisocyanate is preferably 1: 1 to 1.5: 1, in particular 1.05: 1 to 1.3: 1. The molecular weight or the average molecular weight or the maximum of the molecular weight distribution of preferred dirt-releasing polyurethanes is in the range from 1500 to 2,000,000, in particular from 8,000 to 150,000.

In the production of polyurethanes to be used, which is known in principle and particularly preferred in principle, the procedure is preferably such that first of all the polyisocyanate, preferably a diisocyanate, and polymeric polyol of the formula (I), which is preferably a diol (c = 2 ), prepares prepolymers with excess polyol, which are extended in a second stage by reaction with further polyisocyanate and a polyol according to formula (II), (III), (IV) or (V), which is preferably also a diol. It is possible to use a different diisocyanate in the second stage than in the first stage, for example to carry out the reaction of the first stage with MDI and the reaction of the second stage with TMXDI. If, as stated above, several polymeric polyols according to Formula (I) with different degrees of polymerization is to be used, it is preferred to use the one with the lowest degree of polymerization in the first stage and the one or those with a higher degree of polymerization in the second stage together with the polyol according to formula (II), (III), ( IV) or (V). In the latter variant, a polymeric diol of the formula (I) in which b is a number from 3 to 16 is preferably used in the first stage and a polymeric diol of the formula (I) in which b is a in the second stage Number from 17 to 800 is used. Urethane-based polymers thus obtainable are preferably used in the context of the present invention.

As described, the polyurethanes used according to the invention can be produced in a simple manner and are ecologically and toxicologically harmless. They lead to a significantly better detachment of, in particular, grease and cosmetic stains on cotton or cotton-containing fabrics than is the case when using compounds known hitherto for this purpose. Alternatively, significant amounts of surfactants can be saved while maintaining the ability to remove fat.

Another object of the invention is the use of a combination of such a cotton-active dirt-releasing polymer based on urethane with a polyester-active dirt-releasing polymer made of a dicarboxylic acid and an optionally polymeric diol for enhancing the cleaning performance of detergents when washing textiles.

The known polyester-active dirt-releasing polymers which can be used in addition to the urethane-based polymers essential to the invention include copolyesters of dicarboxylic acids, for example adipic acid, phthalic acid or terephthalic acid, diols, for example ethylene glycol or propylene glycol, and polydiols, for example polyethylene glycol or polypropylene glycol. The preferred dirt-releasing polyesters used include those compounds which are formally accessible by esterification of two monomer parts are, the first monomer is a dicarboxylic acid HOOC-Ph-COOH and the second monomer is a diol HO- (CHR "-) _a OH, which can also be present as a polymeric diol H- (O- (CHR _n -) _a ) _b OH Therein, Ph denotes an o-, m- or p-phenylene radical which can carry 1 to 4 substituents selected from alkyl radicals having 1 to 22 carbon atoms, sulfonic acid groups, carboxyl groups and mixtures thereof, R "is hydrogen, an alkyl radical with 1 to 22 carbon atoms and their mixtures, a a number from 2 to 6 and b a number from 1 to 300. Preferably, both monomer diol units -O- (CHR _π -) _a O- and also lie in the polyesters obtainable from these Polymer diol units - (O- (CHR ^u -) _a ) _b O-. The molar ratio of monomer diol units to polymer diol units is preferably 100: 1 to 1: 100, in particular 10: 1 to 1:10. The degree of polymerization b in the polymer diol units is preferably in the range from 4 to 200, in particular from 12 to 140. The molecular weight or the average molecular weight or the maximum of the molecular weight distribution of preferred dirt-releasing polyesters is in the range from 250 to 100,000, in particular from 500 to 50,000 The acid on which the radical Ph is based is preferably selected from terephthalic acid, isophthalic acid, phthalic acid, trimellitic acid, mellitic acid, the isomers of sulfophthalic acid, sulfoisophthalic acid and sulfoterephthalic acid and mixtures thereof. If their acid groups are not part of the ester bonds in the polymer, they are preferably in salt form, in particular as an alkali or ammonium salt. Among them, the sodium and potassium salts are particularly preferred. If desired, instead of the HOOC-Ph-COOH monomer, small amounts, in particular not more than 10 mol%, based on the amount of Ph with the meaning given above, of other acids which have at least two carboxyl groups can be present in the dirt-releasing polyester. These include, for example, alkylene and alkenylene dicarboxylic acids such as malonic acid, succinic acid, fumaric acid, maleic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid. The preferred diols HO- (CHR "-) _a OH include those in which R" is hydrogen and a is a number from 2 to 6, and those in which a is 2 and R ¹¹ is hydrogen and the alkyl radicals 1 to 10, in particular 1 to 3 carbon atoms is selected. Among the latter diols, those of the formula HO-CH ₂ -CHR "-OH, in which R ^{11 has} the meaning given above, are particularly preferred. Examples of diol components are ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1,2-decanediol, 1,2 -Dodecanediol and neopentyl glycol. Particularly preferred among the polymeric diols is polyethylene glycol with an average molecular weight in the range from 1000 to 6000.

If desired, the polyesters composed as described above can also be end group-closed, alkyl groups having 1 to 22 carbon atoms and esters of monocarboxylic acids being suitable as end groups. The end groups bonded via ester bonds can be based on alkyl, alkenyl and aryl monocarboxylic acids having 5 to 32 C atoms, in particular 5 to 18 C atoms. These include valeric acid, caproic acid, oenanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, undecenoic acid, lauric acid, lauroleic acid, tridecanoic acid, myristic acid, myristoleic acid, pentadecanoic acid, palmitic acid, stearic acid, petroselinic acid, petroselaidic acid, linoleic acid, linoleic acid, linoleic acid, linoleic acid, oleolic acid, oleol acid , Arachic acid, gadoleic acid, arachidonic acid, behenic acid, erucic acid, brassidic acid, clupanodonic acid, lignoceric acid, cerotic acid, melissic acid, benzoic acid, which can carry 1 to 5 substituents with a total of up to 25 C atoms, in particular 1 to 12 C atoms, for example tert. -Butylbenzoesäure. The end groups can also be based on hydroxymonocarboxylic acids having 5 to 22 carbon atoms, which include, for example, hydroxyvaleric acid, hydroxycaproic acid, ricinoleic acid, their hydrogenation product hydroxystearic acid and o-, m- and p-hydroxybenzoic acid. The hydroxy monocarboxylic acids can in turn be linked to one another via their hydroxyl group and their carboxyl group and can therefore be present several times in an end group. The number of hydroxymonocarboxylic acid units per end group, that is to say their degree of oligomerization, is preferably in the range from 1 to 50, in particular from 1 to 10. In a preferred embodiment of the invention, polymers of ethylene terephthalate and polyethylene oxide terephthalate in which the polyethylene glycol units have molecular weights of 750 to 5000 and the molar ratio of ethylene terephthalate to polyethylene oxide terephthalate is 50:50 to 90:10, used in combination with nitrogen-containing soil release polymers. The soil release polymers to be used according to the invention are preferably water-soluble, the term “water-soluble” being understood to mean a solubility of at least 0.01 g, preferably at least 0.1 g, of the polymer per liter of water at room temperature and pH 8. Preferred polymers have under these conditions, however, a solubility of at least 1 g per liter, in particular at least 10 g per liter.

The use according to the invention can take place in the context of a washing process in such a way that the urethane-based polymer is added separately to a detergent-containing liquor, or the polymer is introduced into the liquor as part of the detergent. Another object of the invention is therefore a detergent which contains a urethane-based polymer described above.

Detergents which contain a urethane-based polymer to be used according to the invention can contain all the usual other constituents of such compositions which do not interact undesirably with the soil-release polymer essential to the invention. The polymer is preferably incorporated into detergents in amounts of 0.1% by weight to 5% by weight, in particular 0.5% by weight to 2.5% by weight.

Surprisingly, it has been found that such polymers with the properties indicated above have a positive effect on the action of certain other detergent and cleaning agent ingredients, and that, conversely, the action of the cotton-active soil-release polymer is enhanced by certain other detergent ingredients. These effects occur in particular in the case of enzymatic active substances, in particular proteases and lipases, in water-insoluble inorganic builders, in water-soluble inorganic and organic builders, in particular based on oxidized carbohydrates, in bleaching agents based on peroxygen, in particular in the case of alkali percarbonate, and in the case of synthetic anionic surfactants from sulfate and Sulfonate type, which is why the use of said ingredients together with polymers to be used according to the invention is preferred.

In a preferred embodiment, such an agent contains nonionic surfactant, selected from fatty alkyl polyglycosides, fatty alkyl polyalkoxylates, in particular ethoxylates and / or propoxylates, fatty acid polyhydroxyamides and / or ethoxylation and / or propoxylation products of fatty alkylamines, vicinal diols, fatty acid alkyl esters and / or fatty acid amides and mixtures thereof, in particular in an amount in the range from 2% by weight to 25% by weight.

A further embodiment of such agents comprises the presence of synthetic anionic surfactants of the sulfate and / or sulfonate type, in particular fatty alkyl sulfate, fatty alkyl ether sulfate, sulfofatty acid esters and / or sulfofatty acid disalts, in particular in an amount in the range from 2% by weight to 25% by weight. The anionic surfactant is preferably selected from the alkyl or alkenyl sulfates and / or the alkyl or alkenyl ether sulfates in which the alkyl or alkenyl group has 8 to 22, in particular 12 to 18, carbon atoms.

The nonionic surfactants in question include the alkoxylates, in particular the ethoxylates and / or propoxylates of saturated or mono- to polyunsaturated linear or branched chain alcohols having 10 to 22 carbon atoms, preferably 12 to 18 carbon atoms. The degree of alkoxylation of the alcohols is generally between 1 and 20, preferably between 3 and 10. They can be prepared in a known manner by reacting the corresponding alcohols with the corresponding alkylene oxides. The derivatives of fatty alcohols are particularly suitable, although their branched chain isomers, in particular so-called oxo alcohols, can also be used to prepare alkoxylates which can be used. Accordingly, the alkoxylates, in particular the ethoxylates, of primary alcohols with linear, in particular dodecyl, tetradecyl, hexadecyl or octadecyl radicals, and mixtures thereof, can be used. Corresponding alkoxylation products of alkylamines, vicinal diols and carboxamides which correspond to the alcohols mentioned with regard to the alkyl part can also be used. In addition, there are the ethylene oxide and / or propylene oxide insertion products of fatty acid alkyl esters, as can be prepared in accordance with the process specified in international patent application WO 90/13533, and fatty acid polyhydroxyamides, as in accordance with the processes in US Pat. No. 1,985,424. US 2 016 962 and US 2 703 798 and the international patent application WO 92/06984 can be considered. So-called alkyl polyglycosides suitable for incorporation into the agents according to the invention are compounds of the general formula (G) _n -OR ¹² , in which R ^{12 is} an alkyl or alkenyl radical having 8 to 22 C atoms, G is a glycose unit and n is a number between 1 and 10 mean. Such compounds and their preparation are described, for example, in European patent applications EP 92 355, EP 301 298, EP 357 969 and EP 362 671 or US Pat. No. 3,547,828. The glycoside component (G) _n is an oligomer or polymer from a naturally occurring aldose or ketose monomer, in particular glucose, mannose, fructose, galactose, talose, gulose, altrose, allose, idose, ribose, Arabinose, xylose and lyxose include. The oligomers consisting of such glycosidically linked monomers are characterized not only by the type of sugar they contain, but also by their number, the so-called degree of oligomerization. The degree of oligomerization n generally takes fractional numerical values as the quantity to be determined analytically; it is between 1 and 10, for the glycosides preferably used below 1.5, in particular between 1.2 and 1.4. The preferred monomer building block is glucose because of its good availability. The alkyl or alkenyl part R ^{12 of} the glycosides preferably also originates from easily accessible derivatives of renewable raw materials, in particular from fatty alcohols, although their branched chain isomers, in particular so-called oxo alcohols, can also be used to produce usable glycosides. Accordingly, the primary alcohols with linear octyl, decyl, dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful. Particularly preferred alkyl glycosides contain a coconut fatty ^{alkyl radical} , ie mixtures with essentially R ¹² = dodecyl and R ¹² = tetradecyl.

Nonionic surfactant is contained in agents which contain a soil release active ingredient used according to the invention, preferably in amounts from 1% by weight to 30% by weight, in particular from 1% by weight to 25% by weight, amounts in the Upper part of this range are more likely to be found in liquid detergents and particulate detergents preferably contain smaller amounts of up to 5% by weight. Instead or in addition, the agents can contain further surfactants, preferably synthetic anionic surfactants of the sulfate or sulfonate type, such as, for example, alkylbenzenesulfonates, in amounts of preferably not more than 20% by weight, in particular from 0.1% by weight to 18% by weight. %, each based on the total mean. Synthetic anionic surfactants which are particularly suitable for use in such compositions are the alkyl and / or alkenyl sulfates having 8 to 22 carbon atoms and carrying an alkali metal, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion as countercation. The derivatives of fatty alcohols with in particular 12 to 18 carbon atoms and their branched-chain analogs, the so-called oxo alcohols, are preferred. The alkyl and alkenyl sulfates can be prepared in a known manner by reacting the corresponding alcohol component with a conventional sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and then neutralizing with alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases. Such alkyl and or alkenyl sulfates are in the compositions which contain a polymer according to the invention based on urethane, preferably in amounts of 0.1% by weight to 15% by weight, in particular from 0.5% by weight to 10 % By weight.

The sulfate-type surfactants that can be used also include the sulfated alkoxylation products of the alcohols mentioned, so-called ether sulfates. Such ether sulfates preferably contain 2 to 30, in particular 4 to 10, ethylene glycol groups per molecule. Suitable anionic surfactants of the sulfonate type include the .alpha.-sulfoesters obtainable by reacting fatty acid esters with sulfur trioxide and subsequent neutralization, in particular those derived from fatty acids with 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, and linear alcohols with 1 up to 6 carbon atoms, preferably 1 to 4 carbon atoms, derived sulfonation products, as well as the sulfofatty acids resulting from these by formal saponification.

Soaps can be considered as further optional surfactant ingredients, whereby saturated fatty acid soaps, such as the salts of lauric acid, myristic acid, palmitic acid or stearic acid, as well as soaps derived from natural fatty acid mixtures, for example coconut, palm kernel or tallow fatty acids, are suitable. In particular, there are Soap mixtures are preferred which are composed of 50% by weight to 100% by weight of saturated C ₁₂ -C ₁₈ fatty acid soaps and up to 50% by weight of oleic acid soap. Soap is preferably contained in amounts of 0.1% by weight to 5% by weight. However, in particular in liquid compositions which contain a polymer used according to the invention, higher amounts of soap, as a rule up to 20% by weight, can also be present.

In a further embodiment, an agent which contains a polymer to be used according to the invention contains water-soluble and / or water-insoluble builders, in particular selected from alkali alumosilicate, crystalline alkali silicate with a modulus above 1, monomeric polycarboxylate, polymeric polycarboxylate and mixtures thereof, in particular in amounts in the range from 2.5% to 60% by weight.

An agent which contains a polymer to be used according to the invention preferably contains 20% by weight to 55% by weight of water-soluble and / or water-insoluble, organic and / or inorganic builders. The water-soluble organic builder substances include, in particular, those from the class of the polycarboxylic acids, in particular citric acid and sugar acids, and also the polymeric (poly) carboxylic acids, in particular the polycarboxylates of the international patent application WO 93/16110 accessible by oxidation of polysaccharides, polymeric acrylic acids, methacrylic acids, maleic acids and copolymers of these, which may also contain small amounts of polymerizable substances in copolymerized form without carboxylic acid functionality. The relative molecular weight of the homopolymers of unsaturated carboxylic acids is generally between 5000 and 200000, that of the copolymers between 2000 and 200000, preferably 50,000 to 120,000, based on free acid. A particularly preferred acrylic acid-maleic acid copolymer has a relative molecular weight of 50,000 to 100,000. Suitable, albeit less preferred, compounds of this class are copolymers of acrylic acid or methacrylic acid with vinyl ethers, such as vinyl methyl ethers, vinyl esters, ethylene, propylene and styrene, in which the proportion of acid is at least 50% by weight. Terpolymers can also be used as water-soluble organic builder substances which contain two carboxylic acids and / or their salts as monomers and vinyl alcohol and / or a vinyl alcohol derivative or a third monomer Contain carbohydrate. The first acidic monomer or its salt is derived from a monoethylenically unsaturated C ₃ -C ₈ carboxylic acid and preferably from a C ₃ -C ₄ monocarboxylic acid, in particular from (meth) acrylic acid. The second acidic monomer or its salt can be a derivative of a C ₄ -C ₈ dicarboxylic acid, maleic acid being particularly preferred. In this case, the third monomeric unit is formed from vinyl alcohol and / or preferably an esterified vinyl alcohol. Vinyl alcohol derivatives which are an ester of short-chain carboxylic acids, for example of C ₁ -C ₄ -carboxylic acids, with vinyl alcohol are particularly preferred. Preferred terpolymers contain 60% by weight to 95% by weight, in particular 70% by weight to 90% by weight of (meth) acrylic acid or (meth) acrylate, particularly preferably acrylic acid or acrylate, and maleic acid or Maleinate and 5 wt .-% to 40 wt .-%, preferably 10 wt .-% to 30 wt .-% vinyl alcohol and / or vinyl acetate. Terpolymers in which the weight ratio (meth) acrylic acid or (meth) acrylate to maleic acid or maleate is between 1: 1 and 4: 1, preferably between 2: 1 and 3: 1 and in particular 2: 1 and 2 are very particularly preferred , 5: 1 lies. Both the amounts and the weight ratios are based on the acids. The second acidic monomer or its salt can also be a derivative of an allylsulfonic acid which, in the 2-position, has an alkyl radical, preferably a C 1 -C ₄ -alkyl radical, or an aromatic radical which is preferably derived from benzene or benzene derivatives is substituted. Preferred terpolymers contain 40% by weight to 60% by weight, in particular 45 to 55% by weight of (meth) acrylic acid or (meth) acrylate, particularly preferably acrylic acid or acrylate, 10% by weight to 30% by weight. %, preferably 15% by weight to 25% by weight of methallyl sulfonic acid or methallyl sulfonate and as the third monomer 15% by weight to 40% by weight, preferably 20% by weight to 40% by weight of a carbohydrate , This carbohydrate can be, for example, a mono-, di-, oligo- or polysaccharide, mono-, di- or oligosaccharides being preferred, sucrose being particularly preferred. The use of the third monomer presumably creates predetermined breaking points in the polymer, which are responsible for the good biodegradability of the polymer. These terpolymers can in particular be prepared by processes described in German patent DE 42 21 381 and German patent application DE 43 00 772. are written, and generally have a relative molecular mass between 1000 and 200000, preferably between 200 and 50,000 and in particular between 3000 and 10,000. They can be used, in particular for the preparation of liquid compositions, in the form of aqueous solutions, preferably in the form of 30 to 50 percent by weight aqueous solutions. All of the polycarboxylic acids mentioned are generally used in the form of their water-soluble salts, in particular their alkali metal salts.

Such organic builder substances are preferably present in amounts of up to 40% by weight, in particular up to 25% by weight and particularly preferably from 1% by weight to 5% by weight. Amounts close to the above-mentioned upper limit are preferably used in paste-like or liquid, in particular water-containing, agents in which the polymer according to the invention is contained.

In particular, crystalline or amorphous alkali alumosilicates are used as water-insoluble, water-dispersible inorganic builder materials, in amounts of up to 50% by weight, preferably not more than 40% by weight, and in liquid compositions in particular from 1% by weight to 5% by weight. used. Among these, the crystalline aluminosilicates in detergent quality, in particular zeolite NaA and optionally NaX, are preferred. Amounts close to the above upper limit are preferably used in solid, particulate compositions. Suitable aluminosilicates in particular have no particles with a grain size above 30 mm and preferably consist of at least 80% by weight of particles with a size below 10 mm. Their calcium binding capacity, which can be determined according to the information in German patent DE 24 12 837, is in the range from 100 to 200 mg CaO per gram. Suitable substitutes or partial substitutes for the aluminosilicate mentioned are crystalline alkali silicates, which can be present alone or in a mixture with amorphous silicates. The alkali silicates which can be used as builders in the compositions preferably have a molar ratio of alkali oxide to SiO ₂ below 0.95, in particular from 1: 1.1 to 1:12, and can be amorphous or crystalline. Preferred alkali silicates are the sodium silicates, in particular the amorphous sodium silicates, with a Na ₂ O: SiO ₂ molar ratio of 1: 2 to 1: 2.8. Such amorphous alkali silicates are commercially available, for example, under the name Portil®. borrowed. Those with a Na ₂ O: SiO ₂ molar ratio of 1: 1.9 to 1: 2.8 can be produced by the process of European patent application EP 0 425 427. They are preferably added as a solid and not in the form of a solution during production. Crystalline phyllosilicates of the general formula Na ₂ Si _x O _{2x + 1} yH ₂ O, in which x, the so-called modulus, is a number from 1.9 to, are preferably used as crystalline silicates, which may be present alone or in a mixture with amorphous silicates 4 and y is a number from 0 to 20 and are preferred values for x 2, 3 or 4. Crystalline layered silicates which fall under this general formula are described, for example, in European patent application EP 0 164 514. Preferred crystalline layered silicates are those in which x assumes the values 2 or 3 in the general formula mentioned. In particular, both β- and δ-sodium disilicate (Na ₂ Si ₂ O ₅ -yH ₂ O) are preferred, whereby β-sodium disilicate can be obtained, for example, by the method described in international patent application WO 91/08171. δ-sodium silicates with a modulus between 1.9 and 3.2 can be produced according to Japanese patent applications JP 04/238 809 or JP 04/260 610. Practically anhydrous crystalline alkali silicates of the above general formula, in which x denotes a number from 1.9 to 2.1, can also be prepared from amorphous alkali silicates, as in European patent applications EP 0 548 599, EP 0 502 325 and EP 0 452 428 described, can be used in agents containing a polymer according to the invention. In a further preferred embodiment of agents according to the invention, a crystalline layered sodium silicate with a modulus of 2 to 3 is used, as can be produced from sand and soda by the process of European patent application EP 0 436 835. Crystalline sodium silicates with a modulus in the range from 1.9 to 3.5, as can be obtained by the processes of European patent EP 0 164 552 and / or European patent application EP 0 294 753, are used in a further preferred embodiment of washing machines. or cleaning agents which contain a polymer according to the invention. Their alkali silicate content is preferably 1% by weight to 50% by weight and in particular 5% by weight to 35% by weight, based on the anhydrous active substance. If alkali alumosilicate, in particular zeolite, is also present as an additional builder substance, the content of alkali silicate is preferably 1% by weight to 15% by weight and in particular 2% by weight to 8% by weight, based on anhydrous active substance. The weight ratio of aluminosilicate to silicate, based in each case on anhydrous active substances, is then preferably 4: 1 to 10: 1. In compositions which contain both amorphous and crystalline alkali silicates, the weight ratio of amorphous alkali silicate to crystalline alkali silicate is preferably 1: 2 to 2: 1 and in particular 1: 1 to 2: 1.

In addition to the inorganic builder mentioned, other water-soluble or water-insoluble inorganic substances can be used in the compositions which contain a soil-release polymer to be used according to the invention. In this context, the alkali carbonates, alkali hydrogen carbonates and alkali sulfates and mixtures thereof are suitable. Such additional inorganic material can be present in amounts up to 70% by weight.

In addition, the agents can contain further constituents customary in washing and cleaning agents. These optional constituents include, in particular, enzymes, enzyme stabilizers, bleaching agents, bleach activators, complexing agents for heavy metals, for example aminopolycarboxylic acids, aminohydroxypolycarboxylic acids, polyphosphonic acids and / or aminopolyphosphonic acids, graying inhibitors, for example cellulose ethers, color transfer inhibitors, for example

Polyvinylpyrrolidone or polyvinylpyrdine-N-oxide, foam inhibitors, for example organopolysiloxanes or paraffins, solvents and optical brighteners, for example stilbene disulfonic acid derivatives. In agents which contain a polymer according to the invention, up to 1% by weight, in particular 0.01% by weight to 0.5% by weight, of optical brighteners, in particular compounds from the class of the substituted 4,4'- Bis- (2,4,6-triamino-s-triazinyl) -stilbene-2,2'-disulfonic acids, up to 5% by weight, in particular 0.1% by weight to 2% by weight, of complexing agents for heavy metals , in particular aminoalkylenephosphonic acids and their salts, up to 3% by weight, in particular 0.5% by weight to 2% by weight, of graying inhibitors and up to 2% by weight, in particular 0.1% by weight to 1% by weight .-% contain foam inhibitors, the weight percentages each refer to the entire average. Solvents which are used in particular in the case of liquid compositions which contain a polymer according to the invention are, in addition to water, preferably those which are water-miscible. These include the lower alcohols, for example ethanol, propanol, iso-propanol, and the isomeric butanols, glycerol, lower glycols, for example ethylene and propylene glycol, and the ethers which can be derived from the classes of compounds mentioned. The polyesters according to the invention are generally dissolved or in suspended form in such liquid compositions.

Any enzymes present are preferably selected from the group comprising protease, amylase, lipase, cellulase, hemicellulase, oxidase, peroxidase or mixtures thereof. Protease obtained from microorganisms, such as bacteria or fungi, is primarily suitable. It can be obtained in a known manner by fermentation processes from suitable microorganisms, which are described, for example, in German patent applications DE 19 40 488, DE 20 44 161, DE 22 01 803 and DE 21 21 397, US Pat. Nos. 3,632,957 and US 4,264,738, European patent application EP 006 638 and international patent application WO 91/02792 are described. Proteases are commercially available, for example, under the names BLAP®, Savinase®, Esperase®, Maxatase®, Optimase®, Alcalase®, Durazym® or Maxapem®. The lipase that can be used can be obtained from Humicola lanuginosa, as described, for example, in European patent applications EP 258 068, EP 305 216 and EP 341 947, from Bacillus species, as described, for example, in international patent application WO 91/16422 or European patent application EP 384 717 , from Pseudomonas species, as for example in European patent applications EP 468 102, EP 385 401, EP 375 102, EP 334 462, EP 331 376, EP 330 641, EP 214 761, EP 218 272 or EP 204 284 or the international Patent application WO 90/10695 described, from Fusarium species, such as described in European patent application EP 130 064, from Rhizopus species, such as described in European patent application EP 117 553, or from Aspergillus species, such as in European Patent application EP 167 309 described can be obtained. Suitable lipases are, for example, under the names Lipolase®, Lipozym®, Lipomax®, Amano®-Lipase, Toyo-Jozo®-Lipase, Meito®- Lipase and Diosynth® lipase commercially available. Suitable amylases are commercially available, for example, under the names Maxamyl®, Termamyl®, Duramyl® and Purafect® OxAm. The cellulase which can be used can be an enzyme which can be obtained from bacteria or fungi and which has a pH optimum, preferably in the weakly acidic to weakly alkaline range from 6 to 9.5. Such cellulases are known, for example, from German published applications DE 31 17 250, DE 32 07 825, DE 32 07 847, DE 33 22 950 or European patent applications EP 265 832, EP 269 977, EP 270 974, EP 273 125 and EP 339 550 and the international patent applications WO 95/02675 and WO 97/14804 known and commercially available under the names Celluzyme®, Carezyme® and Ecostone®.

The usual enzyme stabilizers which may be present, in particular in liquid agents, include amino alcohols, for example mono-, di-, triethanol- and propanolamine and mixtures thereof, lower carboxylic acids, as known, for example, from European patent applications EP 376 705 and EP 378 261, Boric acid or alkali borates, boric acid-carboxylic acid combinations, as known, for example, from European patent application EP 451 921, boric acid esters, such as known from international patent application WO 93/11215 or European patent application EP 511 456, boronic acid derivatives, such as from European patent application EP 583 536 known, calcium salts, for example the Ca-formic acid combination known from the European patent EP 28 865, magnesium salts, such as known from the European patent application EP 378 262, and / or sulfur-containing reducing agents, such as from de European patent applications EP 080 748 or EP 080 223 are known.

Suitable foam inhibitors include long-chain soaps, in particular beech soap, fatty acid amides, paraffins, waxes, microcrystalline waxes, organopolysiloxanes and mixtures thereof, which may also contain microfine, optionally silanized or otherwise hydrophobized silica. For use in particulate compositions, such foam inhibitors are preferably bound to granular, water-soluble carrier substances, as is the case, for example, in the German patent application DE 34 36 194, the European patent applications EP 262 588, EP 301 414, EP 309 931 or the European patent specification EP 150 386.

Furthermore, an agent which contains a polymer used according to the invention can contain graying inhibitors. Graying inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing the graying of the fibers. Water-soluble colloids of mostly organic nature are suitable for this, for example the water-soluble salts of polymeric carboxylic acids, glue, gelatin, salts of ether carboxylic acids or ether sulfonic acids of starch or cellulose or salts of acidic sulfuric acid esters of cellulose or starch. Water-soluble polyamides containing acidic groups are also suitable for this purpose. Soluble starch preparations and starch products other than those mentioned above can also be used, for example partially hydrolyzed starch. Na carboxymethyl cellulose, methyl cellulose, methyl hydroxyethyl cellulose and mixtures thereof are preferably used.

A further embodiment of such an agent, which contains a soil-release polymer to be used according to the invention, contains bleaching agents based on peroxygen, in particular in amounts in the range from 5% by weight to 70% by weight, and optionally bleach activator, in particular in amounts in the range from 2% to 10% by weight. These bleaching agents that can be considered are the per compounds generally used in detergents, such as hydrogen peroxide, perborate, which can be present as tetra- or monohydrate, percarbonate, perpyrophosphate and persilicate, which are generally present as alkali metal salts, in particular as sodium salts. Such bleaching agents are in detergents which contain a polymer used according to the invention, preferably in amounts of up to 25% by weight, in particular up to 15% by weight and particularly preferably from 5% by weight to 15% by weight, in each case on the entire medium, with percarbonate in particular being used. The optional component of the bleach activators comprises the commonly used N- or O-acyl compounds, for example multiply acylated alkylenediamines, in particular tetraacetylethylenediamine, acylated glycolurils, in particular tetraacetylglycol. uril, N-acylated hydantoins, hydrazides, triazoles, urazoles, diketopiperazines, sulfurylamides and cyanurates, also carboxylic acid anhydrides, especially phthalic anhydride, carboxylic acid esters, especially sodium isononanoyl phenolsulfonate, and acylated sugar derivatives, especially pentaacetyl glucose. The bleach activators can be coated or granulated with coating substances in a known manner in order to avoid the interaction with the per-compounds during storage, with the aid of carboxymethyl cellulose granulated tetraacetyl ethylenediamine with average grain sizes of 0.01 mm to 0.8 mm, for example can be prepared by the process described in European Patent EP 37 026, and / or granulated 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine, as described in German Patent DD 255 884 described method can be prepared, is particularly preferred. Such bleach activators are preferably contained in detergents in amounts of up to 8% by weight, in particular from 2% by weight to 6% by weight, in each case based on the total agent.

In a preferred embodiment, an agent into which the soil release polymer to be used according to the invention is incorporated is particulate and contains 20% by weight to 55% by weight of inorganic builder, up to 10% by weight, in particular 2% by weight. % to 8% by weight of water-soluble organic builder, 10% by weight to 25% by weight of synthetic anionic surfactant, 1% by weight to 5% by weight of nonionic surfactant, up to 25% by weight, in particular 5% by weight % to 20% by weight of bleach, in particular alkali percarbonate, up to 15% by weight, in particular 1% to 10% by weight of bleach activator and up to 25% by weight, in particular 0.1%. % to 25% by weight of inorganic salts, in particular alkali metal carbonate or hydrogen carbonate.

Examples

Example 1: Preparation of the polyurethanes

492.4 g and 1208.5 g of polyethylene glycol 600 (degree of polymerization approx. 13) were introduced and dewatered at 80 ° C. and 1 mbar for approx. 2 hours. Subsequently, 187.7 g or 375.4 g of 4,4'-diphenylmethane diisocyanate were added in portions of 40-50 g under nitrogen at 80 ° C. over about 90 minutes and then stirred at 80 ° C. under nitrogen until the isocyanate was completely used up (approx. 2 h). The prepolymers P1 (average molecular weight approximately 6600) and P2 (average molecular weight approximately 2700) were obtained.

465 g PI were dehydrated with 468 g polyethylene glycol 6000 (degree of polymerization approx. 137) and 23 g 12-hydroxy-octadecan-l-ol for approx. 2 h at 100 ° C. and 2 mbar and then with 44 g tetramethylxylylene diisocyanate at 150 - 160 ° C to constant melt viscosity to the polymer SRP1 (ratio OH: NCO 1.21) implemented.

575 g of P2 were dehydrated with 318 g of polyethylene glycol 6000 (degree of polymerization approx. 137) and 30 g of 12-hydroxy-octadecan-l-ol for approx. 2 h at 100 ° C. and 2 mbar, and then with 77 g of tetramethylxylylene diisocyanate at 150 - 160 ° C to constant melt viscosity to the polymer SRP2 (ratio OH: NCO 1.14) implemented.

267 g of P2 were dehydrated with 118 g of polyethylene glycol 6000 (degree of polymerization approx. 137), 14 g of 12-hydroxy-octadecan-l-ol and 23 g of dimethylolpropionic acid for approx. 1 h at 90 ° C. and 1 mbar and then with 78 g of tetramethylxylylene diisocyanate at 140-150 ° C. up to a constant melt viscosity to form the polymer SRP3 (ratio OH: NCO 1.06). Example 2

Containing a detergent (VI)

ABS 12 parts by weight

FAS 5 parts by weight

C12 / 14 7 EO 3 parts by weight

TAED 7 parts by weight

Percarbonate 17 parts by weight

Soda 13 parts by weight

Zeolite 28 parts by weight

Sokalan CP 5 5 parts by weight

Tinopal DMS-X 0.2 parts by weight

2 parts by weight of SRP1 (Wl) or 2 parts by weight of SRP2 (W2) were added. Fabrics made from pure cotton, refined cotton and polyester / cotton blended fabrics 50/50 were treated as follows:

Washing machine: Miele W 918 Novotronic

Primary washing performance: normal program single-washing process

Washing temperature: 40 ° C

Determination: 3 times

Fleet volume: 18 1

Water hardness: 16 ° dH

Filling wash: 3.5 kg clean laundry

The fabrics were washed uncontaminated three times with the detergent to be tested under the conditions specified above and dried after each wash. After prewashing three times, the fabrics were soiled with the following standardized soiling by hand:

0.15 g cream rouge 0.10 g lipstick 0.10 g black shoe polish 0.10 g dust / skin fat

The soiled tissues were measured with a Minolta CR 200 and then aged at RT for 7 days. The soiled tissues were then stapled onto towels and washed under the conditions specified above. The tissues were dried and measured again with a Minolta CR 200. The following washing results (dde values) resulted:

Table 2: Cotton pure

Table 3: Cotton refined

Table 4: Cotton / polyester

It can be seen that the detergents with the polymers (W1 and W2) to be used according to the invention have a significantly better washing performance than the agent which lacks the polymer.

Claims

claims

1. Use of dirt-releasing polymers which are obtainable by polymerizing polyisocyanates with polymeric polyols with an average molecular weight of more than 1000 D and a water solubility at 20 ° C. of more than 300 g of polymer per liter, and also polyols with an average molecular weight of less than 12000 D and one Water solubility at 20 ° C of less than 100 g per liter and possibly other polyols and their mixtures, to enhance the cleaning performance of detergents when washing textiles made of cotton or containing cotton.

2. Use of dirt-releasing polymers which are obtainable by polymerizing polyisocyanates with polymeric polyols having an average molecular weight of more than 1000 D and a water solubility at 20 ° C. of more than 300 g of polymer per liter and polyols having an average molecular weight of less than 12000 D and one Water solubility at 20 ° C of less than 100 g per liter and optionally other polyols and their mixtures, to enhance the cleaning performance of detergents when washing textiles that are made of cotton or contain cotton and had already been washed in the presence of the polymer before they were washed with the dirt was provided.

3. Use of a combination of dirt-releasing polymer, which is obtainable by polymerizing polyisocyanates with polymeric polyols with an average molecular weight of more than 1000 D and a water solubility at 20 ° C. of over 300 g of polymer per liter and polyols with an average molecular weight of less than 12000 D and a water solubility at 20 ° C of less than 100 g per liter and optionally other polyols and their mixtures, and a polyester-active dirt-releasing polymer from a dicarboxylic acid and an optionally polymeric diol to enhance the cleaning performance of detergents when washing textiles.

4. Use according to one of claims 1 to 3, characterized in that the polymeric polyol with a mean molecular weight of over 1000 D and a water solubility at 20 ° C of over 300 g of polymer per liter of a compound of formula (I)

W is [(O- (CH ₂ -) _a ) _b -OH] _c (I), in which a is a number from 1 to 3, b is a number from 17 to 800 and c is a number from 1 to 6 stands, whereby b can vary within a molecule, W stands for H- with c = 1,

- (CH ₂ ) _d - with c = 2, where d stands for a number from 2 to 12,

- (CH2) _e -CH (CH ₂ -) - (CH ₂ ) _e - with c = 3, where e is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or a radical which contains both aliphatic and aromatic groups.

5. Use according to one of claims 1 to 3, characterized in that the polymeric polyol with an average molecular weight of over 1000 D and a water solubility at 20 ° C of over 300 g of polymer per liter of a polyethylene glycol, in particular with an average molecular weight between 3000 and 12000 D, is.

6. Use according to one of claims 1 to 5, characterized in that the polyol with an average molecular weight of less than 12000 D and a water solubility at 20 ° C of less than 100 g per liter corresponds to one of the general formulas (II) to (V) .

HO-X-CHY-OH (II),

in which X represents a linear or branched alkylene group having 1 to 48 carbon atoms and Y represents hydrogen or an alkyl group having 1 to 24 carbon atoms,

V [(O - ((CH ₂ -) _f CHR '-) ΛOH] _i (III) in which R ^{1 is} hydrogen or an alkyl group having 1 to 6 carbon atoms, f is a number from 0 to 3, g is a number from 1 to 4 and h is a number from 5 to 300, where R ¹ , f and h can vary within a molecule; V for H- with i = l,

- (CH ₂ ) _k - with i = 2, where k stands for a number from 2 to 12, -CH ₂ - (CH -), - CH ₂ - with i = 1 + 2, where 1 stands for a number of 1 to 4, - (CH ₂ ), - CH (CH ₂ -) - (CH ₂ ) _r with c = 3, where 1 is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or a radical which contains both aliphatic and aromatic groups,

HO ((- CHR ² (-CH ₂ ) _m ) _n -O) ₀ -Cy -C (R ³ ) (R ⁴ ) -Cy- (O - ((CH ₂ -) _p CHR ² -) _q ) _r OH (IV)

in which Cy represents phenylene or cyclohexylidene, R ^{2 represents} hydrogen or an alkyl group having 1 to 6 C atoms, R ³ and R ⁴ independently of one another represent hydrogen or an alkyl group having 1 to 6 C atoms or together represent an aliphatic bridge (CR ⁵ R ⁶ ) form _S , in which s represents a number from 4 to 6 and R ⁵ and R ⁶ independently of one another are H or an alkyl group having 1 to 6 C atoms or a double bond, where R ⁵ and R ^{6 are} within a bridge can vary, m and p independently of one another represent a number from 0 to 3, n and q independently of one another represent a number from 1 to 4 and o and r independently of one another represent a number from 0 to 20, where R ² , m and p can vary within a molecule,

V [-OC (O) - (C (R ⁷ ) (R ⁸ )) _t - (CHOH) _u - (CH ₂ ) _w -H] _i (V)

in which R ⁷ and R ^{8 can} independently represent H or an alkyl group having 1 to 6 C atoms or a multiple bond to the adjacent C atom, where R ⁷ and R ⁸ can vary within one molecule, t and w independently of one another are a number from 0 to 20 and u is the number 0 or 1, where t, u and w can vary within one molecule, V is H or CH ₃ - with i = l, - (CH ₂ ) _k - with i = 2, where k stands for a number from 2 to 12, -CH ₂ - (CH -), - CH ₂ - with i = 1 + 2, where 1 stands for a number of 1 to 4, HO-CH ₂ - (CH -), - CH ₂ - with i = 1 + 1, where 1 stands for a number from 1 to 4, - (CH ₂ ), - CH (CH ₂ -) - (CH ₂ ) _r with c = 3, where 1 is a number from 1 to 4, or any aliphatic, alicyclic or aromatic radical or a radical which contains both aliphatic and aromatic groups.

7. Use according to one of claims 1 to 6, characterized in that the polymers are obtainable by using polyisocyanates of the general structure (O = C = N-) _t Z, where t is the number 2 or 3, Z is an aliphatic or is an aromatic group or a group containing both aliphatic and aromatic groups.

8. Use according to claim 7, characterized in that the polyisocyanate is a diisocyanate.

9. Use according to claim 8, characterized in that the diisocyanate is diphenylmethane diisocyanate and / or tetramethylxylene diisocyanate.

10. Use according to one of claims 1 to 9, characterized in that the molar ratio of polyol to polyisocyanate is 1: 1 to 1.5: 1, in particular 1.05: 1 to 1.3: 1.

11. Use according to one of claims 1 to 10, characterized in that the polymer is obtainable by, in a first step, from a diisocyanate and a polymeric diol of the formula (I)

W [(O- (CH ₂ -) J _b -OH] _c (I) in which a is a number from 1 to 3, b is a number from 3 to 800 and c is a number from 1 to 6, where b can vary within one molecule, W for H- with c = l,

- (CH ₂ ) _d - with c = 2, where d stands for a number from 2 to 12, -CH ₂ - (CH-) _e -CH ₂ - with c = e + 2, where e stands for a number of 1 to 4, - (CH2) _e -CH (CH ₂ -) - (CH ₂ ) _e - with c = 3, where e is a number from 1 to 4, or for any aliphatic, alicyclic or aromatic radical or a radical which contains both aliphatic and aromatic groups, prepolymers with excess diol, which in a second stage by reaction with further diisocyanate and a diol according to formula (II), (III), (IV) or (V) can be extended.

12. Use according to claim 11, characterized in that the polymer is obtainable by using a different diisocyanate in the second stage than in the first stage.

13. Use according to claim 11 or 12, characterized in that the polymer is obtainable by using a plurality of polymeric diols according to formula (I) with different degrees of polymerization and the one with the lowest degree of polymerization in the first stage and the one or those with a higher degree of polymerization used in the second stage together with the diol according to formula (II), (III), (IV) or (V).

14. Use according to claim 13, characterized in that in the first stage a polymeric diol according to formula (I) in which b represents a number from 3 to 16, and in the second stage a polymeric diol according to formula (I), in which b stands for a number from 17 to 800, is used.

15. Detergent containing a dirt-releasing polymer which is obtainable by polymerizing polyisocyanates with polymeric polyols with an average molecular weight of more than 1000 D and a water solubility at 20 ° C. of over 300 g of polymer per liter and polyols with an average molecular weight of less than 12000 D and a water solubility at 20 ° C of less than 100 g per liter and optionally other polyols and their mixtures.

16. Composition according to claim 15, characterized in that it contains the polymer in amounts of 0.1 wt .-% to 5 wt .-%, in particular 0.5 wt .-% to 2.5 wt .-%.