Patent Number: 6,255,274

Title: Use of comb polymers as soil release polymers

Abstract: 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).sub.a --H, in which X is C.sub.2 H.sub.4 and/or C.sub.3 H.sub.7 and a is a number from 2 to 35, preferably from 2 to 5, c) one or more optionally sulfonated C.sub.2 -C.sub.10 -dicarboxylic acids and d) one or more compounds of the formulae NH.sub.2 R, NHR.sub.2, ROH, R.sup.1 COOH, HO(XO).sub.b --H and HO(CH.sub.2 CH.sub.2).sub.d SO.sub.3 K, in which R is C.sub.1 -C.sub.22 -alkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 is C.sub.1 -C.sub.22 -alkyl, C.sub.1 -C.sub.22 -sulfoalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -sulfoaryl, X is C.sub.2 H.sub.4 and/or C.sub.3 H.sub.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.

Inventors: Becherer; Johannes (Maintal, DE), Lang; Frank-Peter (Hattersheim, DE), Mees; Bernhard (Eppstein, DE), Morschhauser; Roman (Mainz, DE)

Assignee: Clariant GmbH

International Classification: C11D 3/37 (20060101); C11D 003/37 ()

Expiration Date: 07/03/2018