Acryloyldimethyltaurine acid-based grafted copolymers

Details Acryloyldimethyltaurine acid-based grafted copolymers Acryloyldimethyltaurine acid-based grafted copolymers

2006-12-19

2006-12-19

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S158000, C526S287000, C526S288000, C526S303100, C526S307200

Reexamination Certificate

active

07151137

ABSTRACT:
The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization ofA) acryloyldimethyltaurine and/or acryloyldimethyltaurates,B) if desired, one or more other olefinically unsaturated, optionally crosslinking comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, the copolymerizationC) taking place in the presence of at least one polymeric additive having a number-average molecular weight of from 200 g/mol to 109g/mol.The water-soluble or water-swellable copolymers of the present invention are useful in paper processing, laundry detergents, textile processing, petroleum extraction and formulating cosmetics.

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