FLUESSIGE, STRAHLENHAERTBARE UEBERZUGSMASSE FUER DIE BESCHICHTUNG VON GLASOBERFLAECHEN

摘要

The invention concerns a coating compound containing A) 56 to 89 % by wt. of at least one ethylenically unsaturated polyurethane optionally containing urea groups, B) 10 to 30 % by wt. of at least one ethylenically unsaturated monomer, C) 0.5 to 8 % by wt. of at least one photo-initiator and D) 0.05 to 6 % by wt. of d1) at least one azidosilane N3-R<3>-Si-R<1>n(OR<2>)3-n in which R<1> is a C1-C3 alkyl, phenyl, benzyl or toluyl group, R<2> is a C1-C4 alkyl, C2-C4 alkoxyalkyl, phenyl or benzyl group, R<3> is a C1-C8 alkylene group which may include in the chain an oxygen atom, a sulphur atom or an -(NR<4>) group, R<4> being hydrogen or a methyl, ethyl or phenyl group, and n is 0, 1 or 2, and, optionally, d2) at least one aminoalkoxysilane H2N-R<5>-Si-R<6>m(OR<7>)3-m in which R5 is a C1-C6 alkylene, C5-C6 cycloalkylene or C5-C6 arylene group which may, in addition, be substituted by one or two C1-C3 alkyl groups, R<6> and R<7> are C1-C6 alkyl or C5-C6 cycloalkyl groups which may be substituted by one or two C1-C3 alkyl groups and m is 0, 1 or 2, the sum of the components A to D being 100 % by wt. and all weight percentages being relative to coating.