Use of copolymers based on vinyl monomers and carboxylic...

C - Chemistry – Metallurgy – 11 – D

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C11D 3/37 (2006.01) C11D 3/00 (2006.01) D06M 15/21 (2006.01) D06M 15/285 (2006.01)

Patent

CA 2115529

ABSTRACT Use of copolymers based on vinyl monomers and carboxylic acid amides as a detergent additive The present invention relates to the use of copolymers comprising 75 - 95% by weight of the total amount of the monomer of at least one vinyl monomer which is free from carboxyl and amide groups, 5 - 20% by weight of at least one carboxylic acid amide of the formula (I) Image in which R is a hydrogen atom or a methylol radical, R1 is a hydrogen atom or a C1-C3-alkyl radical and R2 is a hydrogen atom or a methyl radical and if appropriate together with not more than 5% by weight of a copolymorizable unsaturated carboxylic acid, as a detergent additive for preventing the reabsorption of detached dyestuffs and dyestuff degradation products.

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