A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
31/1, 167/153, 1
A61K 31/765 (2006.01) A61K 8/06 (2006.01) A61K 8/81 (2006.01) A61K 47/32 (2006.01) A61Q 1/00 (2006.01) A61Q 1/02 (2006.01) A61Q 5/02 (2006.01) A61Q 5/06 (2006.01) A61Q 11/00 (2006.01) A61Q 17/02 (2006.01) A61Q 17/04 (2006.01) A61Q 19/00 (2006.01) A61Q 19/10 (2006.01) C08F 8/00 (2006.01) C08F 8/28 (2006.01)
Patent
CA 1120857
ABSTRACT OF THE DISCLOSURE Cosmetic, pharmaceutical and technical compositions containing as a thickening agent cross-linked polymers obtained by copolymerizing 99.9 to 50 molar % of acrylamide, from 0 to 45 molar % of a compound of the formula I Image (I) in which R2 and R3 are hydrogen, or one of the radicals R2 and R3 is methyl, the other being hydrogen, X is cyano, alkoxycarbonyl whose alkoxy radical may also be substituted by -OH; alkanoyloxy, alkanoylamino which - if they have at least 4 carbon atoms - may also for a pyrrolidone or caprolactam ring; phenyl, carboxyl or trialkoxysilyl with 1 to 2 carbon atoms in the alkoxy groups, and from 0.1 to 20 molar % of a cross-linking agent in the presence of a radical initiator in a water-miscible alkanol, mixing the polymer dispersion obtained under the action of strong shearing forces with 5 to 99.9 molar % of an alkali metal hydroxide heating the mixture at a temperature of from 30 to 150°C up to the saponification of 5 to 99.9 molar % of amide groups to form -COOM- groups, and either isolating the copolymer obtained or methylolating the amide groups with paraformaldehyde.
321382
Balzer Juliane
Engelhardt Friedrich
Quack Jochen M.
Reng Alwin
Ribka Joachim
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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