申请人:GENERAL ELECTRIC COMPANY
公开号:EP0442305A2
公开(公告)日:1991-08-21
An ultraviolet radiation curable silica coating composition containing (a) acrylic monomers, (b) functionalized colloidal silica, (c) acrylated urethanes, (d) an ultraviolet radiation absorber, and (e) a photoinitiator. The coating composition once applied to and cured on a thermoplastic substrate provides a coating which exhibits improved flexibility and weathering. The coatings are useful for providing abrasion resistance and weatherability to thermoplastic, for example polycarbonate, substrates.
一种紫外线辐射固化二氧化硅涂料组合物,含有 (a) 丙烯酸单体、(b) 功能化胶体二氧化硅、(c) 丙烯酸聚氨酯、(d) 紫外线辐射吸收剂和 (e) 光引发剂。涂层组合物一旦涂抹到热塑性基材上并固化,就能提供一种具有更好柔韧性和耐候性的涂层。这种涂料适用于为热塑性塑料(例如聚碳酸酯)基材提供耐磨性和耐候性。