Adhesives based on polyvinyl ether copolymers

摘要

Adhesives containing polyvinyl ether copolymers having a weight average molecular weight of >10,000, comprise a) from 0 to 95% by weight of vinyl ethers of the formula I H2C=CH-O-R b) from 5 to 100% by weight of hydrophilic vinyl ethers of the formula II H2C=CH-O-R1 and c) from 0 to 30% by weight of further monomers, where R is C1-C20-alkyl and R1 is an aliphatic or cycloaliphatic radical which may be substituted by hydroxyl groups or interrupted by nonadjacent groups -Y-, Y is oxygen, sulfur or a group NR2 or N+R2R3X-, R2 and R3 independently of one another are each hydrogen or C1-C4-alkyl and X- is a counter-anion, and the molar ratio of carbon atoms to the sum of groups Y and hydroxyl groups in the aliphatic or cycloaliphatic radical is from 1.01:1 to 6.5:1.