Patent ID: 6875506

Claim:
A polyacrylate obtained by thermal crosslinking of a polymer mixture comprising the following components: a) a polyacrylate copolymer of the following monomers i) acrylates and/or methacrylates of the following formula CH 2 ═CH(R 1 )(COOR 2 ), where R 1 ═H or CH 3 and R 2 is an alkyl chain with 1-20 carbon atoms, at 65-99% by weight, based on a), ii) olefinically unsaturated monomers containing functional groups, at 0-15% by weight, based on a), iii) acrylates and/or methacrylates whose alcohol component contains tert-butoxycarbonyl (BOC) or a combination of tert-butoxycarbonyl (BOC) and hydroxyl groups, at 1-20% by weight, based on a), at 80-99.8% by weight, based on the polymer mixture, b) a polymerization regulating photoinitiator at 0.1-15% by weight, based on the polymer mixture, c) difunctional isocyanata and/or bifunctional epoxide at 0.1-5% by weight based on the polymer mixture.