Use of comb polymers as soil release polymers

US6255274A · kind A · utility

Assignee

• Clariant Corporation · DE

Inventors

• Johannes Becherer · Maintal, DE
• Frank-Peter Lang · Hattersheim, DE
• Bernhard Mees · Charlotte, US
• Roman Morschhäuser · Mainz, DE

Key dates

• Filing date: Feb 16, 2000
• Grant date: Jul 3, 2001
• Expiry date: Feb 16, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3746
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The use of comb polymers obtained by condensation of PA1 a) a polycarboxylic acid or a polyalcohol PA1 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, PA1 c) one or more optionally sulfonated C.sub.2 -C.sub.10 -dicarboxylic acids and PA1 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.