| 摘要 |
PCT No. PCT/EP90/00520 Sec. 371 Date Nov. 28, 1991 Sec. 102(e) Date Nov. 28, 1991 PCT Filed Apr. 3, 1990 PCT Pub. No. WO90/13523 PCT Pub. Date Nov. 15, 1990.The present invention relates to a liquid, radiation-curable coating composition for the coating of glass surfaces which comprises A) 56 to 89% by weight of at least one diethylenically unsaturated polyurethane optionally containing urea groups, B) 3 to 30% by weight of at least one ethylenically unsaturated monomer, C) 0.5 to 8% by weight of at least one photoinitiator and D) 0.05 to 6% by weight of an alkoxysilane, the sum total of the components A to D being 100% by weight in each case. The coating composition uses 1.) one or more ethylenically unsaturated monomers containing carboxyl groups, optionally together with other ethylenically unsaturated monomers as the component B and 2.) an alkoxysilane containing epoxide groups as the component D. These coating compositions are employed for the coating of glass surfaces, in particular of optical glass fibers, and are distinguished by good adhesion even under humid conditions. |
