A coating composition comprising (A) a UV-absorbing functionality-bearing alkoxysilane, (B) colloidal silica, (C) a multifunctional alkoxysilane and/or a partial hydrolytic condensate thereof, and (D) phosphoric acid is applicable and curable to resin substrates, typically polycarbonate substrates without a need for primer, heat or UV. On curing, it forms a film having transparency, mar resistance, and UV screening properties.
一种由以下成分组成的涂料组合物适用于
树脂基材,通常是聚
碳酸酯基材,无需底漆、加热或紫外线即可固化:(A) 具有紫外线吸收功能的烷氧基
硅烷;(B) 胶体
二氧化硅;(C) 多功能烷氧基
硅烷和/或其部分
水解缩合物;(D)
磷酸。固化后,可形成具有透明性、抗磨损性和紫外线屏蔽特性的薄膜。