Water-soluble or water-swellable, associatively thickening...

Details Water-soluble or water-swellable, associatively thickening... Water-soluble or water-swellable, associatively thickening...

2007-07-03

2007-07-03

Pezzuto, Helen L (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S264000, C526S287000, C526S292950, C526S307000, C526S307300, C526S307700, C526S328000, C526S320000, C526S332000, C524S804000, C524S808000, C524S818000

Reexamination Certificate

active

10343102

ABSTRACT:
The invention relates to water-soluble or water-swellable copolymers which contain sulfo groups and which are based on (meth)acrylamide-alkylsulfonic acids and (meth)acrylamide or N-vinyl compounds, and to their use as additives for aqueous construction materials systems or for water-based paint and coating systems. The inventive copolymers also represent water retention agents which are highly effective, even when used in relatively small quantities, and which are highly compatible in construction material and paint systems of this type.

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patent: 2003/0027964 (2003-02-01), Quadir et al.
patent: 0 522 756 (1996-01-01), None

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