| abstract |
A) 99,5 bis 75 Gew.-% olefinisch ungesättigten Monomeren, B) 0,5 bis 25 Gew.-% ungesättigten Verbindungen der Formel In und C) 0,01 bis 10 Gew.-% copolymerisierbaren olefinisch ungesättigten Acetophenon- und/oder Benzophenonderivaten, die keine Phenylgruppe mit einer freien Hydroxylgruppe in ortho-Position zur Carbonylgruppe aufweisen, nwobei nX O, S oder NR¹ und nR gegebenenfalls substituiertes C₂- bis C₆-Alkylen sind und nR¹ C₁- bis C₈-Alkyl oder Phenyl bedeutet. The invention relates to UV-crosslinkable copolymers which are composed of A) 99.5 to 75% by weight of olefinically unsaturated monomers, B) 0.5 to 25% by weight of unsaturated compounds of the formula I. and C) 0.01 to 10% by weight of copolymerizable olefinically unsaturated acetophenone and / or benzophenone derivatives which have no phenyl group with a free hydroxyl group in the ortho position to the carbonyl group, in which XO, S or NR¹ and R are optionally substituted C₂ to C₆ alkylene and R¹ is C₁ to C₈ alkyl or phenyl. n n n After crosslinking, the copolymers according to the invention are suitable as coating, impregnating or adhesive agents and in particular as pressure sensitive adhesives. |