Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1995-04-21
1997-05-06
McFarlane, Anthony
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
510360, C11D 328, C11D 337
Patent
active
056271514
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to the use of copolymers of 1-vinylpyrrolidone and 1-vinylimidazole with nitrogen-containing basic ethylenically unsaturated monomers in the form of the free bases, in the form of the salts with organic or inorganic acids or in quaternized form as detergent additives for inhibiting dye transfer during the wash; to novel polymers of vinylpyrrolidone, vinylimidazole and vinylimidazolium compounds; to processes for preparing same; and to their use in detergents.
DE-B-2 232 353 discloses detergent and cleaner mixtures consisting essentially of from 95 to 60% by weight of nonionic detergents and from 5 to 40% by weight of a partially or completely water-soluble polyvinylpyrrolidone and essentially free of anionic surface-active agents. The vinylpyrrolidone polymers inhibit the transfer of dye from colored to white textiles during the wash. The vinylpyrrolidone polymers have molecular weights within the range from about 10,000 to about 1,000,000. Not only homopolymers but also copolymers of vinylpyrrolidone are contemplated. Suitable comonomers are said to be acrylonitrile and maleic anhydride. However, the effectiveness of the vinylpyrrolidone dye/color transfer inhibitors is greatly impaired by anionic surfactants.
DE-A-2 814 287 discloses detergent and cleaner compositions containing anionic and/or nonionic surfactants, builders and other customary detergent additives and also, as stain inhibitors, from 0.1 to 10% by weight of water-soluble or water-dispersible homo- or copolymers of N-vinylimidazole. The polymers have a specific viscosity of from 0.01 to 5 in a 1% strength by weight aqueous solution at 20.degree. C.
Tenside 28, pages 428 to 433 (1991) discloses using polyvinylimidazole, polyvinylpyrrolidone and copolymers of vinylpyrrolidone and acrylamide or vinylimidazole and acrylamide as color transfer inhibitor in the wash liquor in the washing of textile materials.
WO-A-90/01920 discloses for example copolymers which contain vinylpyrrolidone and quaternized basic monomers, such as dimethylaminopropylacrylamide, in polymerized form. The polymers are used in cosmetic formulations, such as hairsprays or skin care agents.
EP-A-0 337 354 relates to hair shampoos which contain for example alkylpolyglucosides as surface-active agent and a cationic polymer. Suitable cationic polymers include for example copolymers of diallylammonium salts and acrylamide or quaternized polyvinylpyrrolidone.
EP-A-0 013 585 discloses dishwashing agents which include an anionic surface-active agent, a nonionic surface-active agent or mixtures thereof, a copolymer of N-vinylpyrrolidone and dimethylaminoethyl methacrylate and an alkali metal salt of casein.
EP-A-0 457 205 discloses the use of water-soluble or water-dispersible grafted proteins which are obtainable by free-radically initiated copolymerization of monoethylenically unsaturated monomers in the presence of proteins, as detergent and cleaner additives. The grafted proteins improve the primary and secondary detergency and also the soil-release properties of phosphate-free and low-phosphate detergent and cleaner formulations.
The abovementioned polymers with the exception of the grafted proteins described in EP-A-0 457 205 have the disadvantage that they are neither biodegradable nor removable from water by adsorption on sewage sludge.
It is an object of the present invention to provide a detergent additive which inhibits dye transfer during the wash and is at least eliminable from water by adsorption on sewage sludge.
We have found that this object is achieved by the use of copolymers obtainable by free-radically initiated copolymerization of monomer mixtures comprising thereof, N,N'-dialkylaminoalkyl(meth)acrylamides, 4-vinylpyridine, 2-vinylpyridine and/or diallyldialkylamines, each in the form of the free bases, in the form of a salt or in quaternized form, and/or 1-vinylimidazolium compounds of the formula ##STR1## where R is C.sub.1 -C.sub.18 -alkyl or benzyl and X.sup..crclbar. is an anion, and optionally
as detergent additives for inhib
REFERENCES:
patent: 5207941 (1993-05-01), Kroner et al.
Detering Juergen
Schade Christian
Trieselt Wolfgang
Tropsch Juergen
BASF - Aktiengesellschaft
Ghyka Alexander G.
McFarlane Anthony
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