Associative Thickeners Based on Hyperbranched Polymers

摘要

The present invention relates to associative polyurethane thickeners which comprise hyperbranched polymers in polymerized-in form, to the preparation of these thickeners, and to the use thereof, particularly in cosmetic preparations.

主权项

1. A polymer P comprising, in polymerized-in form,
a) at least one polyisocyanate b) at least one alcohol of the general formula I
R1O—R2nOH  (I)whereR1 is selected from C6-C40-alkyl, C6-C40-alkenyl, C3-C10-cycloalkyl, C6-C30-aryl and C7-C40-arylalkyl,R2 is selected from C2-C10-alkylene, C6-C10-arylene and C7-C10-arylalkylene,n is selected from 0 to 200, c) at least one hyperbranched polymer HB with functional groups, where, for the average number f of functional groups per molecule of the hyperbranched polymer, 3 d) optionally at least one compound different from b) and c) and having a molecular weight of at least 300 g/mol comprising
i. at least two OH groups andii. at least two groups selected from ether groups and ester groups, e) optionally further compounds different from b) to d) and having 1 to 10 groups that are reactive toward isocyanate groups per molecule.