C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
167/300, 362/50,
C08L 57/00 (2006.01) A61K 8/87 (2006.01) A61Q 19/00 (2006.01) C02F 1/56 (2006.01) C08F 220/36 (2006.01) C08F 220/60 (2006.01) C08F 246/00 (2006.01) C08L 75/04 (2006.01) C09D 7/00 (2006.01) D06P 1/52 (2006.01) D06P 1/607 (2006.01)
Patent
CA 2028041
HOE 89/F 341 Abstract of the disclosure: Copolymers based on ethylenically unsaturated monomers and containing urethane groups, processes for their preparation and their use Copolymers prepared by free-radical-initiated copolymeri- zation of ethylenically unsaturated copolymerizable monomers, in which the copolymers are preferably syn- thesized from a) 25 to 85% by weight of ethylenically unsaturated hydrophobic monomers, and b) 1 to 50% by weight of ethylenically unsaturated monomers capable of salt formation, and c) 0.1 to 30% by weight of surface-active urethane derivatives containing ethylenically unsaturated carboxyl or carbamido radicals, and d) 0 to 10% by weight of other ethylenically unsat- urated monomers different from a) to c) and con- taining functional radicals, and e) 0 to 5% by weight of ethylenically unsaturated carbonyl compounds, and f) 0 to 5% by weight of ethylenically polyunsaturated or polyfunctional monomers capable of crosslinking, and g) 0 to 5% by weight of molecular weight regulators, and, if aqueous dispersions or the copolymers isolated therefrom are present, these furthermore contain h) 0.1 to 10% by weight, relative to the total amount of all monomer units in the copolymer, of emulsi- fiers and/or protective colloids, and, if desired, the copolymers are partially or completely neutra- lized and converted into water-soluble or colloid- water-dispersible copolymer salts and, if desired, are obtained in solid form. Use of the products as viscosity-increasing and rheology- modifying thickener substances in aqueous systems.
Huth Hans-Ullrich
Zimmerschied Klaus
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
Huth Hans-Ullrich
Zimmerschied Klaus
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