Cationically modified comb polymers based on...

Details Cationically modified comb polymers based on... Cationically modified comb polymers based on...

2006-07-25

2006-07-25

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...

C526S287000, C526S292200, C526S292600, C526S312000, C524S458000, C524S461000

Reexamination Certificate

active

07081507

ABSTRACT:
The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization ofA) acryloyldimethyltaurine and/or acryloyldimethyltaurates,B) optionally, one or more other olefinically unsaturated, noncationic, optionally crosslinking comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol,C) one or more mono- or polyolefinically unsaturated, optionally crosslinking macromonomers each possessing at least one oxygen, nitrogen, sulfur or phosphorus atom and having a number-average molecular weight of greater than or equal to 200 g/mol, andD) one or more olefinically unsaturated, cationic comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, the copolymerizationE) taking place in the presence or absence of at least one polymeric additive having number-average molecular weights of from 200 g/mol to 109g/mol.The water-soluble or water-swellable copolymers of the present invention are useful in formulating cosmetics.

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English Translationof International Preliminary Examination Report, PCT/EP01/13856, Dated Feb. 26, 2003.

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