EP1035194B1 - Use of comb polymers as soil release polymers - Google Patents

Description

The present invention relates to the use of soil release agents Comb polymers in detergents and cleaning agents.

Dirt-dissolving polymers have been the subject of intensive use for many years Development work. Originally as a textile aid for the finishing of Synthetic fibers, especially polyester fibers, developed today, they find as so-called washing aids also used in washing and cleaning agents for the household linen. Common names for such Soil-releasing compounds are “soil release polymers” or “soil Repellents "because they treat the treated surfaces dirt-repellent Give properties.

Most of the soil release polymers are Polyester based on terephthalic acid, polyalkylene glycols and monomers Glycols.

These are due to their structural relationship to polyester fabrics or polyester-containing blended fabric well from an aqueous solution or Wash liquor adsorbs and forms a hydrophilic on the hydrophobic fabric Movie off. This causes the tissue's affinity for hydrophobic Oil and grease dirt is reduced. At the same time, the wettability of the Polyester fabric improved with the aqueous wash liquor. Both lead to one easier removal of oily or greasy stains that normally are very difficult to remove from polyester fabric. In addition, the Moisture transport (water absorption and absorbency) in the treated hydrophobic fabrics such as polyester or polyester / cotton blended fabrics significantly improved, which has a positive effect on the wearing properties. additionally the soil release polymers also improve the antistatic and the Sliding properties. This facilitates the handling of the tissues at the Textile processing.

Soil dissolving polyesters of the type mentioned above are also known, the anionic Contain groups such as sulfonic acid groups (EP-A-24 985, US-A-4 427 557, WO 94/03 570, WO 93/21 294, WO 95/02 030).

It has now been found that so-called comb polymers, as described in DE 198 09 948.7 are described as dirt release polymers can.

a) einer Polycarbonsäure oder einem Polyalkohol,

b) einem oder mehreren gegebenenfalls durch Sulfogruppen substituierten Polyalkoholen mit 2 bis 4 OH-Gruppen oder Polyglykolen der Formel HO-(XO)_a-H, worin X C₂H₄ und/oder C₃H₇ und a eine Zahl von 2 bis 35, vorzugsweise 2 bis 5 bedeutet,

c) einer oder mehreren gegebenenfalls sulfonierten C₂-C₁₀-Dicarbonsäuren und

d) einer oder mehreren Verbindungen der Formeln NH₂R, NHR₂, ROH, R¹COOH, HO(XO)_b-H, HO(CH₂CH₂)_dSO₃K worin R C₁-C₂₂-Alkyl oder C₆-C₁₀-Aryl, R¹ C₁-C₂₂-Alkyl, C₁-C₂₂-Sulfoalkyl, C₆-C₁₀-Aryl oder C₆-C₁₀-Sulfoaryl, X C₂H₄ und/oder C₃H₇, b eine Zahl von 3 bis 40, vorzugsweise 3 bis 20, d eine Zahl von 1 bis 10, vorzugsweise 1 bis 4 und K ein Kation bedeuten, als Schmutzablösepolymere.

The invention thus relates to the use of comb polymers as soil release polymers, these commolymers being obtained by condensation of

a) a polycarboxylic acid or a polyalcohol,

b) one or more polyalcohols which are optionally substituted by sulfo groups and have 2 to 4 OH groups or polyglycols of the formula HO- (XO) _a -H, where XC ₂ H ₄ and / or C ₃ H ₇ and a is a number from 2 to 35 , preferably means 2 to 5,

c) one or more optionally sulfonated C ₂ -C ₁₀ dicarboxylic acids and

d) one or more compounds of the formulas NH ₂ R, NHR ₂ , ROH, R ¹ COOH, HO (XO) _b -H, HO (CH ₂ CH ₂ ) _d SO ₃ K in which RC ₁ -C ₂₂ alkyl or C ₆ -C ₁₀ aryl, R ¹ C ₁ -C ₂₂ alkyl, C ₁ -C ₂₂ sulfoalkyl, C ₆ -C ₁₀ aryl or C ₆ -C ₁₀ sulfoaryl, XC ₂ H ₄ and / or C ₃ H ₇ , b is a number from 3 to 40, preferably 3 to 20, d is a number from 1 to 10, preferably 1 to 4 and K is a cation, as soil release polymers.

The main polymer chain of the comb polymers according to the invention preferably consists of polymeric aliphatic, cycloaliphatic or aromatic polycarboxylic acids or their derivatives such as, for example, polyacrylic acid, polymethacrylic acid, polymaleic acid, polymaleic anhydride and polynorbornene acid or their esters with aliphatic, cycloaliphatic or aromatic alcohols with C ₁ -C ₂₂ . The number average molecular weights of these polycarboxylic acids can be between 1,000 and 2,000,000 g / mol, the range from 2,000 to 100,000 g / mol being preferred.

Furthermore, the polymer main chain can consist of a polymer aliphatic, cycloaliphatic or aromatic polyalcohol, for example Polyvinyl alcohol or polynorbornyl alcohol. The number average molecular weights these polyalcohols can be between 1,000 and 2,000,000 g / mol, the Range of 2,000 to 100,000 g / mol is preferred.

In addition, static, alternating or block-like copolymers of the two classes of compounds mentioned above with other vinyl monomers such as styrene, acrylamide, α-methylstyrene, styrene, N-vinylpyrrolidone, N-vinyl pyridine, N-vinyl formamide, N-vinyl caprolactone, vinyl acetate or Acrylamidopropylene sulfonic acid, vinyl sulfonic acid, vinyl phosphonic acid and their Alkali, alkaline earth and ammonium salts can be used.

These polycarboxylic acids or polyalcohols are reacted with a mixture of components b) to d) as defined above, with oligomers Form polyester side chains. Component b) may be considered polyalcohols aromatic, aliphatic or substituted by a sulfo group cycloaliphatic nature as defined above, for example ethylene glycol, 1,2-propanediol, 1,2-butanediol, 1,4-butanediol, sodium 1,2-dihydroxypropoxyethanesulfonate, Glycerin, pentaerythritol.

Component c) consists of at least difunctional aromatic, aliphatic and / or cycloaliphatic C ₂ -C ₁₀ dicarboxylic acids, such as, for example, terephthalic acid, isophthalic acid, cyclohexanedicarboxylic acid, succinic acid, adipic acid, 2,6-naphthalenedicarboxylic acid and optionally one or more sulfonated aromatic, aliphatic or cycloaliphatic C ₃ -C ₁₀ dicarboxylic acids, for example sulfosuccinic acid or 5-sulfoisophthalic acid or mixtures thereof.
To improve the solubility in water, the sulfo group in the sulfo-containing components is preferably in the form of an alkali, alkaline earth or ammonium, mono-, di-, tri- or tetra-alkyl or -hydroxyalkyl-ammonium salt, an alkyl group 1 to 22 C atoms and the other alkyl groups as well as the hydroxyalkyl group can contain 1 to 4 C atoms.

aromatische, aliphatische oder cycloaliphatische Monoalkylamine oder Dialkylamine, wobei die Alkylgruppe 1 bis 22 C-Atome enthalten kann;

aromatische, aliphatische oder cycloaliphatische Monocarbonsäuren mit 1 bis 200 C-Atomen bei den aliphatischen und 6 bis 10 C-Atomen bei den aromatischen bzw. cycloaliphatischen Monocarbonsäuren;

aliphatische Monoalkohole mit 1 bis 22 C-Atomen oder aromatische und cycloaliphatische Monoalkohole mit 6 bis 10 C-Atomen;

Polyalkoxyverbindungen der Formel HO-(AO)_xR, wobei A -C₂H₄- oder -C₃H₇-, x eine Zahl von 3 bis 40, vorzugsweise 3 bis 20 und R Wasserstoff oder C₁-C₂₂-Alkyl bedeutet.

Component d) is a so-called endcap group. The following groups are possible:

aromatic, aliphatic or cycloaliphatic monoalkylamines or dialkylamines, where the alkyl group can contain 1 to 22 C atoms;

aromatic, aliphatic or cycloaliphatic monocarboxylic acids with 1 to 200 C atoms for the aliphatic and 6 to 10 C atoms for the aromatic or cycloaliphatic monocarboxylic acids;

aliphatic monoalcohols with 1 to 22 C atoms or aromatic and cycloaliphatic monoalcohols with 6 to 10 C atoms;

Polyalkoxy compounds of the formula HO- (AO) _x R, where A -C ₂ H ₄ - or -C ₃ H ₇ -, x is a number from 3 to 40, preferably 3 to 20 and R is hydrogen or C ₁ -C ₂₂ alkyl means.

Particularly preferred as component d) are sulfonated mono- or polyethylene glycols of the formula H (OCH ₂ CH ₂ ) _d SO ₃ M, where d is a number from 1 to 10, preferably from 1 to 4 and M is an alkali or alkaline earth metalation. The comb polymers according to the invention can alternatively also be free from components according to d). In this case, the side chains of the comb polymer terminate with a hydrogen atom.

The comb polymers preferably consist of 0.5 to 10% by weight of the component a), 15 to 45 wt .-% of component b), 30 to 70 wt .-% of component c) and 10 to 30% by weight of component d).

The number average molecular weights of the comb polymers can be advantageous between 2,000 and 2,000,000 g / mol, particularly advantageously between 2,000 and 100,000 g / mol are preferred, with the range of 2,000-30,000 g / mol being preferred Is used, very particularly advantageously from 5,000 - 15,000 g / mol.

The comb polymers are synthesized according to methods known per se, by components a) to d) with the addition of a catalyst Normal pressure to be heated to temperatures of 160 to about 220 ° C. Then the Reaction in a vacuum at temperatures from 160 to approx. 240 ° C while distilling off excess glycols continued. The known ones are suitable for the reaction Transesterification and condensation catalysts of the prior art, such as for example titanium tetraisopropylate, dibutyltin oxide or Antimony trioxide / calcium acetate. For more details on how to run the The method is referred to EP 442 101.

The invention also relates to the use of these comb polymers in Detergents and cleaning agents, in particular to increase their cleaning performance against oily and greasy soiling.

The detergent and cleaning agent formulations in which the inventive Comb polymers can be used are powder, granulate, paste, gel-like or liquid. Examples of these are heavy-duty detergents, mild detergents, Color detergent, wool detergent, curtain detergent, modular detergent, Washing tablets, bar soaps, stain salts, laundry starches and stiffeners, ironing aids. They contain at least 0.1%, preferably between 0.1 and 10% and particularly preferably 0.2 to 3% of the comb polymers according to the invention. The wording are depending on their intended application in their composition of the type of adapt to washable textiles or the surfaces to be cleaned. she contain conventional detergents and cleaning agents, such as the State of the art. Representative examples of such washing and Detergent ingredients are described below.

The total concentration of surfactants in the finished washing and Detergent formulation can range from 1 to 99%, preferably from 5 to 80% (all% by weight). The surfactants used can be anionic, nonionic, be amphoteric and cationic. Mixtures of the surfactants mentioned can also be used be used. Preferred detergent and cleaning agent formulations contain anionic and / or nonionic surfactants and their mixtures with other surfactants.

As anionic surfactants come sulfates, sulfonates, carboxylates, phosphates and Mixtures of these into consideration. Suitable cations are alkali metals such as e.g. Sodium or potassium or alkaline earth metals, such as e.g. B. calcium or magnesium as well as ammonium, substituted ammonium compounds, including mono-, di- or triethanolammonium cations, and mixtures thereof. The following types of Anionic surfactants are of particular interest: Alkyl ester sulfonates, alkyl sulfates, alkyl ether sulfates, alkyl benzene sulfonates, Alkanesulfonates and soaps as described below.

worin R¹ einen C₈-C₂₀-Kohlenwasserstoffrest, bevorzugt Alkyl, und R einen C₁-C₆ Kohlenwasserstoffrest, bevorzugt Alkyl, darstellt. M steht für ein Kation, das ein wasserlösliches Salz mit dem Alkylestersulfonat bildet. Geeignete Kationen sind Natrium, Kalium, Lithium oder Ammoniumkationen, wie Monoethanolamin, Diethanolamin und Triethanolamin. Bevorzugt bedeuten R¹ C₁₀-C₁₆-Alkyl und R Methyl, Ethyl oder Isopropyl. Besonders bevorzugt sind Methylestersulfonate, in denen R¹ C₁₀-C₁₆-Alkyl bedeutet.Alkyl ester sulfonates include linear esters of C ₈ -C ₂₀ carboxylic acids (ie fatty acids) which are sulfonated using gaseous SO ₃ , as described in "The Journal of the American Oil Chemists Society" 52 (1975), pp. 323-329. Suitable starting materials are natural fats such as tallow, coconut oil and palm oil, but can also be synthetic in nature. Preferred alkyl ester sulfonates, especially for detergent applications, are compounds of the formula

wherein R ^{1 is} a C ₈ -C ₂₀ hydrocarbon radical, preferably alkyl, and R is a C ₁ -C ₆ hydrocarbon radical, preferably alkyl. M stands for a cation that forms a water-soluble salt with the alkyl ester sulfonate. Suitable cations are sodium, potassium, lithium or ammonium cations, such as monoethanolamine, diethanolamine and triethanolamine. R ^{1 is} preferably C ₁₀ -C ₁₆ alkyl and R is methyl, ethyl or isopropyl. Methyl ester sulfonates in which R ^{1 is} C ₁₀ -C ₁₆ alkyl are particularly preferred.

Here, alkyl sulfates are water-soluble salts or acids of the formula ROSO ₃ M, in which R is a C ₁₀ -C ₂₄ hydrocarbon radical, preferably an alkyl or hydroxyalkyl radical with a C ₁₀ -C ₂₀ alkyl component, particularly preferably a C ₁₂ -C ₁₈ alkyl or Is hydroxyalkyl. M is hydrogen or a cation, e.g. an alkali metal cation (e.g. sodium, potassium, lithium) or ammonium or substituted ammonium, e.g. B. methyl, dimethyl and trimethylammonium cations and quaternary ammonium cations, such as tetramethylammonium and dimethylpiperidinium cations and quaternary ammonium cations, derived from alkylamines such as ethylamine, diethylamine, triethylamine and mixtures thereof. Alkyl chains with C ₁₂ -C ₁₆ are preferred for low washing temperatures (eg below approx. 50 ° C) and alkyl chains with C ₁₆ -C ₁₈ for higher washing temperatures (eg above approx. 50 ° C).

Alkyl ether sulfates are water-soluble salts or acids of the formula RO (A) _m SO ₃ M, in which R is an unsubstituted C ₁₀ -C ₂₄ alkyl or hydroxyalkyl radical, preferably a C ₁₂ -C ₂₀ alkyl or hydroxyalkyl radical, particularly preferably C ₁₂ -C _{18 represents} alkyl or hydroxyalkyl. A is an ethoxy or propoxy unit, m is a number greater than 0, preferably between approximately 0.5 and approximately 6, particularly preferably between approximately 0.5 and approximately 3, and M is a hydrogen atom or a cation such as, for , As sodium, potassium, lithium, calcium, magnesium, ammonium or a substituted ammonium cation. Specific examples of substituted ammonium cations are methyl, dimethyl, trimethylammonium and quaternary ammonium cations such as tetramethylammonium and dimethylpiperidinium cations as well as those derived from alkylamines such as ethylamine, diethylamine, triethylamine or mixtures thereof. Examples include C ₁₂ to C ₁₈ fatty alcohol ether sulfates, the content of EO being 1, 2, 2.5, 3 or 4 mol per mol of the fatty alcohol ether sulfate, and in which M is sodium or potassium.

In secondary alkanesulfonates, the alkyl group can either be saturated or unsaturated, branched or linear and optionally with a hydroxyl group be substituted. The sulfo group can be at any position on the C chain, with the primary methyl groups at the beginning and end of the chain none Possess sulfonate groups. The preferred secondary alkanesulfonates contain linear alkyl chains with about 9 to 25 carbon atoms, preferably about 10 to about 20 Carbon atoms and particularly preferably about 13 to 17 carbon atoms. The Cation is, for example, sodium, potassium, ammonium, mono-, di- or Triethanolammonium, calcium or magnesium, and mixtures thereof. sodium is preferred as the cation.

In addition to secondary alkanesulfonates, primary alkanesulfonates can also be used in the washing and cleaning agents according to the invention are used.

The preferred alkyl chains and cations correspond to those of the secondary alkane sulfonates.
The preparation of primary alkanesulfonic acid, from which the corresponding sulfonates which are effective as surfactants are obtained, is described, for example, in EP 854 136-A1.

Other suitable anionic surfactants are alkenyl or alkylbenzenesulfonates. The Alkenyl or alkyl group can be branched or linear and optionally with a Hydroxyl group may be substituted. The preferred alkylbenzenesulfonates contain linear alkyl chains with about 9 to 25 carbon atoms, preferably from about 10 to about 13 carbon atoms, the cation is sodium, potassium, ammonium, mono-, di- or Triethanolammonium, calcium or magnesium and mixtures thereof. For mild Magnesium is preferred as the cation for surfactant systems Standard washing applications, however, sodium. The same applies to Alkenylbenzenesulfonates.

The term anionic surfactants also includes olefin sulfonates which are obtained by sulfonating C ₁₂ -C ₂₄ -, preferably C ₁₄ -C ₁₆ -α-olefins with sulfur trioxide and subsequent neutralization. Due to the manufacturing process, these olefin sulfonates can contain smaller amounts of hydroxyalkanesulfonates and alkane disulfonates. Special mixtures of α-olefin sulfonates are described in US 3,332,880.

Other preferred anionic surfactants are carboxylates, e.g. Fatty acid soaps and comparable surfactants. The soaps can be saturated or unsaturated and can have various substituents, such as hydroxyl groups or α-sulfonate groups contain. Linear saturated or unsaturated are preferred Hydrocarbon residues as a hydrophobic portion with about 6 to about 30, preferably about 10 up to approx. 18 carbon atoms.

Other suitable anionic surfactants are salts of acylaminocarboxylic acids, the acyl sarcosinates formed in the alkaline medium by reaction of fatty acid chlorides with sodium sarcosinate; Fatty acid-protein condensation products obtained by reacting fatty acid chlorides with oligopeptides; Salts of alkyl sulfamidocarboxylic acids; Salts of alkyl and alkylaryl ether carboxylic acids; C ₈ -C ₂₄ olefin sulfonates, sulfonated polycarboxylic acids, prepared by sulfonation of the pyrolysis products of alkaline earth metal citrates, as described, for example, in GB-1,082,179; Alkylglycerol sulfates, oleylglycerol sulfates, alkylphenol ether sulfates, primary paraffin sulfonates, alkyl phosphates, alkyl ether phosphates, isethionates such as acyl isethionates, N-acyl taurides, alkyl succinates, sulfosuccinates, monoesters of sulfosuccinates (especially saturated and unsaturated C ₁₂ -C ₁₈ diester sulfates (especially saturated and unsaturated C ₁₂ -C ₁₈ diesters) unsaturated C ₁₂ -C ₁₈ diesters), acyl sarcosinates, sulfates of alkyl polysaccharides such as sulfates of alkyl polyglycosides, branched primary alkyl sulfates and alkyl polyethoxy carboxylates such as those of the formula RO (CH ₂ CH ₂ ) _k CH ₂ COO ^- M ⁺ , where RC ₈ to C ₂₂ -Alkyl, k is a number from 0 to 10 and M is a cation, resin acids or hydrogenated resin acids, such as rosin or hydrogenated rosin or tall oil resins and tall oil resin acids. Further examples are described in "Surface Active Agents and Detergents" (Vol. I and II, Schwartz, Perry and Berch).

The following compounds, for example, are suitable as nonionic surfactants: Polyethylene, polypropylene and polybutylene oxide condensates of alkylphenols.

These compounds include the condensation products of alkylphenols with a C ₆ to C ₂₀ alkyl group, which can be either linear or branched, with alkene oxides. Compounds with about 5 to 25 mol of alkene oxide per mol of alkylphenol are preferred. Commercially available surfactants of this type are, for example, lgepal® CO-630, Triton® X-45, X-114, X-100 and X-102, and the ®Arkopal-N brands from Clariant GmbH. These surfactants are referred to as alkylphenol alkoxylates, for example alkylphenol ethoxylates.

Condensation products of aliphatic alcohols with approx. 1 to approx. 25 mol Ethylene oxide.

The alkyl chain of the aliphatic alcohols can be linear or branched, primary or secondary, and generally contains from about 8 to about 22 carbon atoms. The condensation products of C ₁₀ to C ₂₀ alcohols with about 2 to about 18 moles of ethylene oxide per mole of alcohol are particularly preferred. The alkyl chain can be saturated or unsaturated. The alcohol ethoxylates can have a narrow ("narrow range ethoxylates") or a wide homolog distribution of the ethylene oxide ("broad range ethoxylates"). Examples of commercially available nonionic surfactants of this type are Tergitol® 15-S-9 (condensation product of a linear secondary C ₁₁ -C ₁₅ alcohol with 9 mol ethylene oxide), Tergitol® 24-L-NMW (condensation product of a linear primary C ₁₂ -C ₁₄ -alcohol with 6 mol ethylene oxide with a narrow molecular weight distribution). The Genapol® brands from Clariant GmbH also fall under this product class.

Condensation products of ethylene oxide with a hydrophobic base by condensation of propylene oxide with propylene glycol.

The hydrophobic part of these compounds preferably has a molecular weight between about 1500 and about 1800. The attachment of ethylene oxide to this Hydrophobic part leads to an improvement in water solubility. The product is liquid up to a polyoxyethylene content of approx. 50% of the total weight of the Condensation product, which is a condensation with up to about 40 mol of ethylene oxide equivalent. Commercially available examples of this product class are the Pluronic® brands from BASF and the ®Genapol PF brands from Clariant GmbH.

Condensation products of ethylene oxide with a reaction product of Propylene oxide and ethylenediamine.

The hydrophobic unit of these compounds consists of the reaction product of Ethylene diamine with excess propylene oxide and generally has Molecular weight from about 2500 to 3000. At this hydrophobic unit Ethylene oxide up to a content of approx. 40 to approx. 80% by weight of polyoxyethylene and a molecular weight of about 5000 to 11000 added. Commercially available Examples of this class of compounds are the ®Tetronic brands from BASF and the ®Genapol PN brands from Clariant GmbH.

Semipolar nonionic surfactants

R ist hierbei eine Alkyl-, Hydroxyalkyl- oder Alkylphenolgruppe mit einer Kettenlänge von ca. 8 bis ca. 22 Kohlenstoffatomen, R² ist eine Alkylen- oder Hydroxyalkylengruppe mit ca. 2 bis 3 Kohlenstoffatomen oder Mischungen hiervon, jeder Rest R¹ ist eine Alkyl- oder Hydroxyalkylgruppe mit ca. 1 bis ca. 3 Kohlenstoffatomen oder eine Polyethylenoxidgruppe mit ca. 1 bis ca. 3 Ethylenoxideinheiten und x bedeutet eine Zahl von 0 bis etwa 10. Die R¹-Gruppen können miteinander über ein Sauerstoff- oder Stickstoffatom verbunden sein und somit einen Ring bilden. Aminoxide dieser Art sind besonders C₁₀-C₁₈-Alkyldimethylaminoxide und C₈-C₁₂-Alkoxiethyl-Dihydroxyethylaminoxide.This category of nonionic compounds includes water-soluble amine oxides, water-soluble phosphine oxides and water-soluble sulfoxides, each having an alkyl radical of from about 10 to about 18 carbon atoms. Semipolar nonionic surfactants are also amine oxides of the formula

R is an alkyl, hydroxyalkyl or alkylphenol group with a chain length of about 8 to about 22 carbon atoms, R ² is an alkylene or hydroxyalkylene group with about 2 to 3 carbon atoms or mixtures thereof, each R ¹ is an alkyl - Or hydroxyalkyl group with approx. 1 to approx. 3 carbon atoms or a polyethylene oxide group with approx. 1 to approx. 3 ethylene oxide units and x means a number from 0 to approx. 10. The R ¹ groups can be connected to one another via an oxygen or nitrogen atom and thus form a ring. Amine oxides of this type are especially C ₁₀ -C ₁₈ alkyl dimethyl amine oxides and C ₈ -C ₁₂ alkoxy diethyl dihydroxyethyl amine oxides.

fatty acid amides Fatty acid amides have the formula

worin R eine Alkylgruppe mit ca. 7 bis ca. 21, bevorzugt ca. 9 bis ca. 17 Kohlenstoffatomen ist und jeder Rest R¹ Wasserstoff, C₁-C₄-Alkyl, C₁-C₄-Hydroxyalkyl oder (C₂H₄O)_xH bedeutet, wobei x von ca. 1 bis ca. 3 variiert. Bevorzugt sind C₈-C₂₀-Amide, -monoethanolamide, -diethanolamide und - isopropanolamide.

wherein R is an alkyl group with about 7 to about 21, preferably about 9 to about 17 carbon atoms and each radical R ^{1 is} hydrogen, C ₁ -C ₄ alkyl, C ₁ -C ₄ hydroxyalkyl or (C ₂ H ₄ O) _x means H, where x varies from about 1 to about 3. C ₈ -C ₂₀ amides, monoethanolamides, diethanolamides and isopropanolamides are preferred.

Other suitable nonionic surfactants are alkyl and alkenyl oligoglycosides as well Fatty acid polyglycol esters or fatty amine polyglycol esters each with 8 to 20, preferably 12 to 18 carbon atoms in the fatty alkyl radical, alkoxylated triglycamides, Mixed ethers or mixed formyls, alkyl oligoglycosides, alkenyl oligoglycosides, fatty acid N-alkyl glucamides, Phosphine oxides, dialkyl sulfoxides and protein hydrolyzates.

worin R¹ C₈-C₂₂-Alkyl- oder -Alkenyl, R² Wasserstoff oder CH₂CO₂M, R³ CH₂CH₂OH oder CH₂CH₂OCH₂CH₂CO₂M, R⁴ Wasserstoff, CH₂CH₂OH oder CH₂CH₂COOM, Z CO₂M oder CH₂CO₂M, n 2 oder 3, bevorzugt 2, M Wasserstoff oder ein Kation wie Alkalimetall, Erdalkalimetall, Ammonium oder Alkanolammonium bedeutet.Typical examples of amphoteric or zwitterionic surfactants are alkyl betaines, alkylamide betaines, aminopropionates, aminoglycinates, or amphoteric imidazolinium compounds of the formula

wherein R ^{1 is} C ₈ -C ₂₂ alkyl or alkenyl, R ^{2 is} hydrogen or CH ₂ CO ₂ M, R ³ CH ₂ CH ₂ OH or CH ₂ CH ₂ OCH ₂ CH ₂ CO ₂ M, R ^{4 is} hydrogen, CH ₂ CH ₂ OH or CH ₂ CH ₂ COOM, Z CO ₂ M or CH ₂ CO ₂ M, n 2 or 3, preferably 2, M is hydrogen or a cation such as alkali metal, alkaline earth metal, ammonium or alkanolammonium.

Preferred amphoteric surfactants of this formula are monocarboxylates and Dicarboxylates. Examples include cocoamphocarboxypropionate, Cocoamidocarboxypropionic acid, Cocoamphocarboxyglycinat (or also as Cocoamphodiacetate) and Cocoamphoacetat.

Further preferred amphoteric surfactants are alkyldimethylbetaines and Alkyldipolyethoxybetaines with an alkyl radical having about 8 to about 22 carbon atoms, which can be linear or branched, preferably having 8 to 18 carbon atoms and particularly preferably having about 12 to about 18 carbon atoms. These connections e.g. from Clariant GmbH under the trade name ®Genagen LAB marketed.

Suitable cationic surfactants are substituted or unsubstituted straight-chain or branched quaternary ammonium salts of the type R ¹ N (CH ₃ ) ₃ ^⊕ X ^⊖ , R ¹ R ² N (CH ₃ ) ₂ ^⊕ X ^⊖ , R ¹ R ² R ³ N (CH ₃ ) ^⊕ X ^⊖ or R ¹ R ² R ³ R ⁴ N ^⊕ X ^⊖ . The radicals R ¹ , R ² , R ³ and R ⁴ can preferably independently of one another unsubstituted alkyl with a chain length between 8 and 24 carbon atoms, in particular between 10 and 18 carbon atoms, hydroxyalkyl with about 1 to about 4 carbon atoms. Atoms, phenyl, C ₂ to C ₁₈ alkenyl, C ₇ to C ₂₄ aralkyl, (C ₂ H ₄ O) _x H, where x is from about 1 to about 3, one or more alkyl groups containing ester groups or cyclic quaternary ammonium salts. X is a suitable anion.

Other detergent ingredients included in the present invention may include inorganic and / or organic builders, to reduce the hardness of the water.

These builders can range in weight from about 5% to about 80% Detergent and cleaning agent compositions may be included. inorganic Builders include, for example, alkali, ammonium and Alkanolammonium salts of polyphosphates such as tripolyphosphates, Pyrophosphates and glassy polymeric metaphosphates, phosphonates, silicates, Carbonates including bicarbonates and sesquicarbonates, sulfates and Aluminosilicates.

Examples of silicate builders are the alkali metal silicates, especially those with an SiO ₂ : Na ₂ O ratio between 1.6: 1 and 3.2: 1, and layered silicates, for example sodium layered silicates, as described in US Pat. No. 4,664,839, available from Clariant GmbH under the SKS® brand. SKS-6® is a particularly preferred layered silicate builder.

Aluminosilicate builders are particularly preferred for the present invention. These are in particular zeolites with the formula Na _z [(AlO ₂ ) _z (SiO ₂ ) _y ] .xH ₂ O, in which z and y are integers of at least 6, the ratio of z to y between 1.0 to about 0.5, and x is an integer from about 15 to about 264.

Suitable ion exchangers based on aluminosilicate are commercially available. This Aluminosilicates can be crystalline or amorphous in structure and can naturally occurring or synthetically produced. Procedure for the Production of ion exchangers based on aluminosilicate are described in U.S. 3,985,669 and U.S. 4,605,509. Preferred ion exchangers based synthetic crystalline aluminosilicates are available under the name zeolite A, Zeolite P (B) (including those disclosed in EP-A-0 384 070) and Zeolite X. Preferred are aluminosilicates with a particle diameter between 0.1 and 10 µm.

Suitable organic builders include polycarboxyl compounds such as for example ether polycarboxylates and oxydisuccinates, such as in U.S. 3,128,287 and U.S. 3,635,830. Builders are also said to be on "TMS / TDS" from U.S. 4,663,071.

Other suitable builders include the ether hydroxypolycarboxylates, Copolymers of maleic anhydride with ethylene or vinyl methyl ether, 1,3,5-trihydroxybenzene-2,4,6-trisulfonic acid and carboxymethyloxysuccinic acid, the alkali, ammonium and substituted ammonium salts of polyacetic acids such as e.g. Ethylenediaminetetraacetic acid and nitrilotriacetic acid, and also polycarboxylic acids, such as mellitic acid, succinic acid, oxydisuccinic acid, polymaleic acid, benzene-1,3,5-tricarboxylic acid, Carboxymethyloxy succinic acid and its soluble salts.

Citrate-based builders, e.g. Citric acid and its soluble salts, especially the sodium salt, are preferred polycarboxylic acid builders that also in granulated formulations, in particular together with zeolites and / or Layered silicates can be used.

Other suitable builders are the 3,3-dicarboxy-4-oxa-1,6-hexanedioates and the related compounds disclosed in US 4,566,984.

If phosphorus-based builders can be used, and especially if soap bars for laundry are to be formulated by hand various alkali metal phosphates such as sodium tripolyphosphate, Sodium pyrophosphate and sodium orthophosphate can be used. Likewise can phosphonate builders such as ethane-1-hydroxy-1,1-diphosphonate and others known phosphonates as described, for example, in US Pat. No. 3,159,581, US Pat. No. 3,213,030, U.S. 3,422,021, U.S. 3,400,148 and U.S. 3,422,137 are used.

The cleaning agents can contain customary auxiliaries or other materials, that enhance the cleaning effect, for the treatment or care of the serve cleaning object or the performance characteristics of the Change detergent composition.

Suitable auxiliaries include the substances mentioned in US Pat. No. 3,936,537, for example enzymes, in particular proteases, lipases and cellulases, Foam booster, foam brakes, anti-tarnish and / or anti-corrosion agents, Suspending agents, dyes, fillers, optical brighteners, disinfectants, Alkalis, hydrotropic compounds, antioxidants, enzyme stabilizers, perfumes, Solvents, solubilizers, redeposition inhibitors, dispersants, Color transfer inhibitors, e.g. B. polyamine N-oxides such as poly- (4-vinylpyridine-N-oxide), Polyvinylpyrrolidone and copolymers of N-vinylimidazole and N-vinyl pyrrolidone, processing aids, plasticizers and anti-static aids.

The detergent and detergent compositions of the present invention can optionally contain one or more conventional bleaches, as well as activators or stabilizers, in particular peroxy acids, which are not compatible with the Comb polymers according to the invention react. In general, must be ensured be that the bleach used with the detergent ingredients are tolerated. Conventional test methods, such as determining the Bleaching activity of the formulated detergent depending on the Storage times can be used for this purpose.

The peroxy acid can either be a free peroxy acid or a combination from an inorganic persalt, for example sodium perborate or Sodium percarbonate and an organic peroxyacid precursor that leads to a Peroxyacid is converted when the combination of persalt and Peroxyacid precursor is dissolved in water. The organic peroxyacid precursors are often referred to as bleach activators in the prior art. Examples of suitable organic peroxyacids are disclosed in US 4,374,035, U.S. 4,681,592, U.S. 4,634,551, U.S. 4,686,063, U.S. 4,606,838 and U.S. 4,671,891.

Examples of compositions suitable for bleaching laundry and which contain perborate bleaches and activators are described in U.S. 4,412,934, U.S. 4,536,314, U.S. 4,681,695 and U.S. 4,539,130.

Examples of peroxyacids preferred for use in this invention are peroxydodecanedioic acid (DPDA), the nonylamide of Peroxysuccinic acid (NAPSA), the nonyl amide of peroxyadipic acid (NAPAA) and decyldiperoxysuccinic acid (DDPSA). The peroxy acid is preferably in contain a soluble granulate, according to the method from US-4,374,035. A preferred bleaching granulate contains, in percent by weight, 1% to 50% of one exothermic soluble compound such as boric acid; 1% to 25% of one with the peroxyacid-compatible surfactant, such as C13LAS; 0.1% to 10% of one or more chelate stabilizers, such as for example sodium pyrophosphate; and 10% to 70% of a water soluble Salt such as sodium sulfate.

The peroxyacid bleaching agent is used in amounts equal to an amount of available oxygen between about 0.1% to about 10%, preferably between about 0.5% to about 5%, especially from about 1% to 4%. The Percentages refer to the total weight of the Detergent composition.

Suitable amounts of the peroxyacid-containing bleaching agent, based on a Unit dose of the detergent composition according to the invention as it is is used for a typical wash liquor containing about 65 liters of water from 15 to 60 ° C, produce between about 1 ppm to about 150 ppm available Oxygen, preferably between about 2 ppm to about 20 ppm Oxygen. The wash liquor should have a pH between 7 and 11, preferably between 7.5 and 10.5 in order to obtain a sufficient bleaching result achieve. Reference is made to column 6, lines 1 to 10 of US 4,374,035.

Alternatively, the bleach composition can be an appropriate one organic peroxyacid precursor containing one of the above Peroxyacids generated when in an aqueous alkaline solution Hydrogen peroxide reacts. The source of the hydrogen peroxide can be any be inorganic peroxide, which releases hydrogen peroxide in aqueous solution, such as such as sodium perborate (monohydrate and tetrahydrate) and sodium percarbonate.

The proportion of the peroxide-containing bleaching agents in the inventive Detergent compositions range from about 0.1% by weight to about 95% by weight, and preferably between about 1% by weight and about 60% by weight. If the bleach composition is also fully formulated Detergent composition, it is preferred that the proportion of the peroxide-containing bleaching agent is between about 1% by weight to about 20% by weight.

The amount of bleach activators with the comb polymers of the invention can generally be used is between 0.1 and 60% by weight, preferably between 0.5 and 40% by weight. Are the used Bleach compositions fully formulated at the same time Detergent compositions, the amount of bleach activators, which is in is contained, preferably between about 0.5 and 20 wt .-%.

The peroxy acid and the comb polymers according to the invention are preferably in a weight ratio between available oxygen from the peroxyacid comb polymer according to the invention from about 4: 1 to about 1:30, in particular from about 2: 1 to about 1:15, and especially from about 1: 1 to about 1: 7.5. This Combination can be used both as a fully formulated product and as an additive to one Detergents are used.

The detergent compositions according to the invention can be one or contain several conventional enzymes. Such enzymes are e.g. lipases, Amylases, proteases and cellulases. A preferred enzyme is cellulase. The cellulase used here can be obtained from bacteria or fungi and should have an optimal pH range between 5 and 9.5. suitable Cellulases are disclosed in US 4,435,307. It is cellulase that is produced by a strain of Humicola insolens, especially the strain Humicola DSM 1800 or another cellulase-212-producing mushroom that belongs to the genus Aeromonas, and cellulase from the hepatopancreas certain marine molluscs were extracted. Suitable cellulases are also in GB-A-2,075,028, GB-A-2,085,275 and DE-OS-2,247,832.

Preferred cellulases are described in WO-91/17 243. The invention Detergent compositions contain enzymes in amounts up to about 50 mg, preferably from about 0.01 mg to about 10 mg per gram of Detergent composition. Based on the weight of the washing and Detergent compositions containing the comb polymers of the invention contain, the proportion of the enzymes is at least 0.001 wt .-%, preferably between about 0.001% by weight to about 5% by weight, in particular from about 0.001 % To about 1% by weight, especially from about 0.01% to about 1% by weight.

Particularly preferred enzymes are lipases which, as fat-cleaving enzymes enable better detachment of native oils and fats from soiled tissues and thus support the comb polymers of the invention in their action, wherein generally additive as well as synergistic effects can be achieved.

The comb polymers according to the invention which are used in aqueous textile washing liquors Concentrations between about 1 to about 180 ppm are used, preferably in Concentrations between about 30 to about 90 ppm are effective cleaning and dirt-removing treatment for polyester, Polyester cotton blends and other synthetic fabrics. The Textile washing liquors are preferably alkaline with a pH range between about 7 to about 11, especially between about 7.5 to about 10.5, being typical Detergent ingredients are present. Surprisingly, especially insofar as the pH and anionic surface-active compounds are concerned are those that are usually contained in detergents and cleaning agents Detergents also in amounts in the cleaning agents according to the invention be used as it corresponds to the prior art. They fulfill theirs usual purpose, i.e. for example cleaning or bleaching tissue without that they have an adverse effect on the dirt-removing properties of the have comb polymers according to the invention.

The comb polymers according to the invention can be used to achieve soil release Finish also in commercially available fabric softeners for household use be used. These essentially contain softening components, Co-plasticizers, emulsifiers, perfumes, dyes and electrolytes, and are on set an acidic pH of below 7, preferably between 3 and 5.

eingesetzt, worin

R¹ =

C₈-C₂₄ n-, bzw. iso-Alkyl, bevorzugt C₁₀-C₁₈ n-Alkyl

R² =

C₁-C₄-Alkyl, bevorzugt Methyl

R³ =

R¹ oder R²

R⁴ =

R² oder Hydroxyethyl oder Hydroxypropyl oder deren Oligomere

X^- =

Bromid, Chlorid, Jodid, Methosulfat, Acetat, Propionat, Lactat

sind.Quaternary ammonium salts of the type are used as plasticizing components

used where

R ¹ =

C ₈ -C ₂₄ n- or iso-alkyl, preferably C ₁₀ -C ₁₈ n-alkyl

R ² =

C ₁ -C ₄ alkyl, preferably methyl

R ³ =

R ¹ or R ²

R ⁴ =

R ² or hydroxyethyl or hydroxypropyl or their oligomers

X ^- =

Bromide, chloride, iodide, methosulfate, acetate, propionate, lactate

are.

Examples include distearyldimethylammonium chloride, Ditallow alkyl dimethyl ammonium chloride, ditallow alkyl methyl hydroxypropyl ammonium chloride, Cetyltrimethylammonium chloride or the corresponding Benzyl derivatives such as dodecyldimethylbenzylammonium chloride. cyclic quaternary ammonium salts such as alkyl morpholine derivatives can also be used.

worin

R =

C₈-C₂₄ n-, bzw. iso-Alkyl, bevorzugt C₁₀-C₁₈ n-Alkyl

X =

Bromid, Chlorid, Jodid, Methosulfat

A =

NH-CO-, -CO-NH-, -O-CO-, -CO-O-

ist.In addition to the quaternary ammonium compounds, imidazolinium compounds (1) and imidazoline derivatives (2) can be used.

wherein

R =

C ₈ -C ₂₄ n- or iso-alkyl, preferably C ₁₀ -C ₁₈ n-alkyl

X =

Bromide, chloride, iodide, methosulfate

A =

NH-CO-, -CO-NH-, -O-CO-, -CO-O-

is.

A particularly preferred class of compounds are the so-called ester quats. It are reaction products of alkanolamines and fatty acids, which then with conventional alkylation or hydroxyalkylation agents be quaternized.

mit

R¹ =

C₁-C₃ Hydroxyalkyl, bevorzugt Hydroxyethyl und

R², R³ =

R¹ oder C₁-C₃ Alkyl, bevorzugt Methyl.

Preferred alkanolamines are compounds according to the formula

With

R ¹ =

C ₁ -C ₃ hydroxyalkyl, preferably hydroxyethyl and

R ² , R ³ =

R ¹ or C ₁ -C ₃ alkyl, preferably methyl.

Triethanolamine and methyldiethanolamine are particularly preferred.

Other particularly preferred starting products for esterquats are Aminoglycerol derivatives such as e.g. B. Dimethylaminopropanediol.

Alkylation or hydroxyalkylation agents are preferred, preferably alkyl halides Methyl chloride, dimethyl sulfate, ethylene oxide and propylene oxide.

wobei R-C-O abgeleitet ist von C₈-C₂₄-Fettsäuren, die gesättigt oder ungesättigt sein können. Beispiele hierfür sind Capronsäure, Caprylsäure, hydrierte oder nicht oder nur teilweise hydrierte Talgfettsäuren, Stearinsäure, Ölsäure, Linolensäure, Behensäure, Palmitinstearinsäure, Myristinsäure und Elaidinsäure. n liegt im Bereich von 0 bis 10, vorzugsweise 0 bis 3, besonders bevorzugt 0 bis 1.Examples of ester quats are compounds of the formulas:

where RCO is derived from C ₈ -C ₂₄ fatty acids, which can be saturated or unsaturated. Examples of these are caproic acid, caprylic acid, hydrogenated or not or only partially hydrogenated tallow fatty acids, stearic acid, oleic acid, linolenic acid, behenic acid, palmitic stearic acid, myristic acid and elaidic acid. n is in the range from 0 to 10, preferably 0 to 3, particularly preferably 0 to 1.

worin

R¹ und R²

unabhängig voneinander C₈ - C₂₄ n- bzw. iso-Alkyl, bevorzugt C₁₀-C₁₈ n-Alkyl,

A

-CO - NH- oder -NH -CO-,

n

1 - 3, bevorzugt 2,

m

1 - 5, bevorzugt 2 - 4

bedeuten.Further preferred fabric softener raw materials with which the comb polymers according to the invention can be combined are amido amines based on, for example, dialkyltriamines and long-chain fatty acids, and their oxyethylates or quaternized variants. These connections have the following structure:

wherein

R ¹ and R ²

independently of one another C ₈ -C ₂₄ n- or iso-alkyl, preferably C ₁₀ -C ₁₈ n-alkyl,

A

-CO - NH- or -NH -CO-,

n

1 - 3, preferably 2,

m

1-5, preferably 2-4

mean.

By quaternization of the tertiary amino group, a radical R ³ , which can be C ₁ -C ₄ -alkyl, preferably methyl, and a counterion X, which can be chloride, bromide, iodide or methyl sulfate, can additionally be introduced. Amidoaminooxethylates and their quaternized secondary products are offered under the trade names ®Varisoft 510, ®Varisoft 512, ®Rewopal V 3340 and ®Rewoquat W 222 LM.

The preferred use concentrations of the invention Comb polymers in the fabric softener formulations correspond to those for Detergent formulations are called.

In addition to the applications mentioned in detergents and fabric softeners / laundry after-treatment agents can the comb polymers according to the invention in all household cleaning agents and all technical cleaning agents have a good soil release effect compared to hydrophobic To achieve contamination. Household cleaning supplies and technical Detergents can use the above representative examples of surfactants, Contain builders, optical brighteners, bleaches and enzymes.

Examples of household cleaning agents are all-purpose cleaners, dishwashing detergents, Carpet cleaning and waterproofing agents, cleaning and care products for floors and other hard surfaces, e.g. made of plastic, ceramic, glass.

Examples of technical cleaning agents are plastic cleaning and Care products, such as for housings and car fittings, as well as cleaning and Care products for painted surfaces such as car bodies.

Liquid-formulated cleaning agents containing the comb polymers according to the invention contain, generally have a pH below 8.

Examples Example 1:

In a 1 liter four-necked flask with KPG stirrer, 20 cm Vigreux column with Claisen bridge, Internal thermometer and gas inlet tube became 220 g Dimethyl terephthalate, 92 g of dimethyl 5-sulfoisophthalate monosodium salt, 140 g ethylene glycol, 212 g 1,2-propylene glycol, 149 g 72.4% sodium hydroxyethoxyethanesulfonate, 7.4 g of polyacrylic acid with an average molecular weight of 2000, 0.4 g of anhydrous sodium acetate and 0.3 g of titanium tetraisopropylate submitted. The mixture was then inertized with nitrogen and opened within half an hour 165 - 167 ° C heated. The temperature rose within a further 2.5 hours 210 - 220 ° C increased. At an internal temperature of approx. 165 ° C the transesterification or Esterification and thus the distillation of methanol and water. After about 5 hours, more than 95% of the expected amount had distilled off. In the course of about 1 hour the pressure was reduced to 1-5 mbar and at 220 - 225 ° C condensed for a further 2 - 5 hours, a mixture of Ethylene glycol and 1,2-propylene glycol distilled off and the batch increasingly viscous will, but still stirrable. After the condensation was finished with Nitrogen vented and cooled. The product solidifies on cooling Room temperature to a solid brittle mass. Yield 440 g.

Analogously to Example 1, the following starting materials were used according to the invention Comb polymers made:

Example 2

310 g dimethyl terephthalate 130 g ethylene glycol 200 g 1,2-propylene glycol 140 g Sodium hydroxyethoxyethanesulfonate 72.4% 73 g Sodium dihydroxypropoxyethanesulfonate 80.5% 9.6 g Polyacrylic acid (average molecular weight 2000) 0.4 g Sodium acetate anhydrous 0.3 g tetraisopropoxide Yield 510 g

Example 3

290 g dimethyl terephthalate 126 g ethylene glycol 220 g 1, 2-propylene glycol 120 g 3-sulfobenzoic acid monosodium salt 88 g Sodium dihydroxypropoxyethanesulfonate 80.5% 7.7 g Polyacrylic acid (average molecular weight 2000) 0.4 g Sodium acetate anhydrous 0.3 g tetraisopropoxide Yield 510 g

Example 4

272 g dimethyl terephthalate 140 g ethylene glycol 245 g 1,2-propylene glycol 125 g 3-sulfobenzoic acid monosodium salt 83 g 5-Sulfoisophthalsäuredimethylestematriumsalz 6.7 g Polyacrylic acid (average molecular weight 2000) 0.5 g Sodium acetate anhydrous 0.4 g tetraisopropoxide Yield 520 g

Example 5

255 g dimethyl terephthalate 130 g ethylene glycol 230 g 1,2-propylene glycol 118 g 3-sulfobenzoic acid monosodium salt 78 g 5-Sulfoisophthalsäuredimethylesternatriumsalz 6.3 g Polyacrylic acid (average molecular weight 100,000) 98 g triethylene 0.4 g Sodium acetate anhydrous 0.3 g tetraisopropoxide Yield 520 g

Example 6

291 g dimethyl terephthalate 130 g ethylene glycol 230 g 1,2-propylene glycol 80 g 5-sulfoisophthalic acid dimethyl esters NA salt 89 g 5-Sulfoisophthalsäuredimethylesternatriumsalz 160 g Sodium hydroxyethoxyethanesulfonate 72.4% 4.4 g Polyvinyl alcohol (average molecular weight 100,000) 0.5 g Sodium acetate anhydrous 0.4g tetraisopropoxide Yield 530 g

The comb polymers according to the invention were designed for their soil release effect compared with prior art soil release polymers.

For this purpose, the substances were added in a concentration of 1% to a washing powder containing phosphate and one containing no phosphate. These washing powders were used to pre-wash the polyester WFK 30 A test fabric (laundry research institute Krefeld). The fabric pretreated in this way was dried and soiled with used motor oil. After an exposure time of 1 hour, the test fabric was washed with the same washing powders.
For comparison, test fabric was washed both without the addition of soil release polymers and with the addition of 1% of commercial soil release polymers.
The reflectance of the test tissue was measured to assess the dirt detachment.
The following compounds were used as the prior art soil release polymer:

Comparative Example 1:

®Repel-O-Tex SRP 4, Rhodia, 70% WS, used in a concentration of 1% based on the active ingredient.

Comparative Example 2:

®Sokalan HP 40, BASF, 25% WS, used in a concentration of 1% based on the active ingredient. washing conditions Washing machine Linitest water hardness 20 ° dH liquor ratio 1:40 wash temperature 40 ° C washing time 30 min. detergent concentration 6 g / l

IEC-A (phosphatfreies Waschpulver)

IEC-B (phosphathaltiges Waschpulver)

Waschergebnisse mit den erfindungsgemäßen Kammpolymeren im Vergleich zu Soil Release Polyestern des Standes der Technik in dem phosphatfreien Waschpulver IEC-A: IEC-A Remission ( % ) ohne Zusatz 23,1 + 1 % Soil Release Polymer:    Vergleichsbeispiel 1 24,8    Vergleichsbeispiel 2 26,5 + 1 % Kammpolymer: Beispiel 1 36,6 Beispiel 2 36,0 Beispiel 3 37,9 Beispiel 4 37,1 Beispiel 5 36,5 Beispiel 6 38,8 Waschergebnisse mit den erfindungsgemäßen Kammpolymeren im Vergleich zu Soil Release Polyestern des Standes der Technik in dem phosphathaltigen Waschpulver IEC-B: IEC-B Remission ( % ) ohne Zusatz 24,5 + 1 % Soil Release Polymer:    Vergleichsbeispiel 1 25,7    Vergleichsbeispiel 2 27,3 + 1 % Kammpolymer: Beispiel 1 38,1 Beispiel 2 37,0 Beispiel 3 38,4 Beispiel 4 37,7 Beispiel 5 37,3 Beispiel 6 38,7 IEC-A/ Wäschereiforschungs-Anstalt Krefeld phosphatfreies Waschpulver IEC-B/ Wäschereiforschungs-Anstalt Krefeld phosphathaltiges Waschpulver ®Repel-O-Tex SRP 4/ Ethylenglykol-Polyethylenglykol Rhodia Terephthalsäure-Copolymer zu 70 %, Rest Natriumsulfat und Natriumaluminiumsilikat ®Sokalan HP 40/ 25 % nichtionisches Polykondensat auf 75 % BASF Zeolith A The following standard detergents from the Krefeld laundry research institute were used as washing powder:

IEC-A (phosphate-free washing powder)

IEC-B (washing powder containing phosphate)

Washing results with the comb polymers according to the invention in comparison with soil release polyesters of the prior art in the phosphate-free washing powder IEC-A: IEC-A Remission (%) without addition 23.1 + 1% Soil Release Polymer: Comparative Example 1 24.8 Comparative Example 2 26.5 + 1% comb polymer: example 1 36.6 Example 2 36.0 Example 3 37.9 Example 4 37.1 Example 5 36.5 Example 6 38.8 Washing results with the comb polymers according to the invention compared to soil release polyesters of the prior art in the phosphate-containing washing powder IEC-B: IEC-B Remission (%) without addition 24.5 + 1% Soil Release Polymer: Comparative Example 1 25.7 Comparative Example 2 27.3 + 1% comb polymer: example 1 38.1 Example 2 37.0 Example 3 38.4 Example 4 37.7 Example 5 37.3 Example 6 38.7 IEC-A / laundry research institute Krefeld phosphate-free washing powder IEC-B / Krefeld laundry research institute washing powder containing phosphate ®Repel-O-Tex SRP 4 / Ethylene glycol, polyethylene glycol Rhodia 70% terephthalic acid copolymer, balance sodium sulfate and sodium aluminum silicate ®Sokalan HP 40 / 25% non-ionic polycondensate to 75% BASF Zeolite A

Claims (9)

1. The use of comb polymers obtained by condensation of

   a) a polycarboxylic acid or a polyalcohol

   b) one or more optionally sulfo-substituted polyalcohols having 2 to 4 OH groups or polyglycols of the formula HO-(XO)_a-H, in which X is C₂H₄ and/or C₃H₇ and a is a number from 2 to 35, preferably from 2 to 5,

   c) one or more optionally sulfonated C₂-C₁₀-dicarboxylic acids and

   d) one or more compounds of the formulae NH₂R, NHR₂, ROH, R¹COOH, HO(XO)_b-H and HO(CH₂CH₂)_dSO₃K, in which R is C₁-C₂₂-alkyl or C₆-C₁₀-aryl, R¹ is C₁-C₂₂-alkyl, C₁-C₂₂-sulfoalkyl, C₆-C₁₀-aryl or C₆-C₁₀-sulfoaryl, X is C₂H₄ and/or C₃H₇, b is a number from 3 to 40, preferably 3 to 20, d is a number from 1 to 10, preferably 1 to 4, and K is a cation, as soil release polymers.
2. The use of comb polymers as claimed in claim 1, wherein the comb polymers comprise 0.5 to 10% by weight of the component a), 15 to 45% by weight of the component b), 30 to 70% by weight of the component c) and 10 to 30% by weight of the component d).
3. The use of comb polymers as claimed in claim 1, wherein the component a) is polyacrylic acid, polymethacrylic acid, polymaleic acid, polymaleic anhydride, polynorbomenic acid or the C₁-C₂₂-esters thereof, polyvinyl alcohol or polynorbomyl alcohol.
4. The use of comb polymers as claimed in claim 1, wherein the component b) is ethylene glycol, 1,2-propanediol, 1,2-butanediol, 1,4-butanediol, sodium 1,2-dihydroxypropoxyethanesulfonate, glycerol or pentaerythritol.
5. The use of comb polymers as claimed in claim 1, wherein the component c) is terephthalic acid, isophthalic acid, cyclohexanedicarboxylic acid, succinic acid, adipic acid, 2,6-naphthalenedicarboxylic acid, sulfosuccinic acid or 5-sulfoisophthalic acid. .
6. The use of comb polymers as claimed in claim 1, wherein the component d) is a compound of the formula H(OCH₂CH₂)_dSO₃M, in which d is a number from 1 to 10 and M is an alkali metal or alkaline earth metal cation.
7. The use of comb polymers as claimed in claim 1 in detergents and cleaning agents for textiles, washing aids, fabric aftertreatment compositions and cleaning agents for hard surfaces.
8. The use of comb polymers as claimed in claim 1 in aqueous solutions or formulations for achieving a soil release finish on textiles.
9. The use of comb polymers as claimed in claim 1 in liquid, pasty, gel-like or granulated form.