Patent ID: 6169140
Filing Date: 2001-01-02
Classification: C08G

Abstract:
A moisture-curable composition containing a mixture comprising a) a polyisocyanate adduct containing isocyanurate, uretdione, biuret, iminooxadiazine dione and/or allophanate groups and b) a polyacrylate resin which has an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, based on the weight of the polyacrylate resin, and contains less than 0.2% by weight of hydroxy groups, based on the weight of the polyacrylate resin, and wherein the alkoxysilane groups are incorporated as the reaction product at an NCO/OH equivalent ratio of 0.9:1.0 to 1.0:1.0 of a polyacrylate polyol with a compound containing isocyanate and alkoxysilane groups and optionally urea groups, wherein components a) and b) are present in amounts sufficient to provide an equivalent ratio of isocyanate groups to alkoxy groups, which are bound to Si, of 1.0:0.05 to 1.0:2.5.