A composition comprising (1) 0.1-50 parts by weight of the reaction product of a hydroxyl group-containing benzophenone compound with a silane and/or a hydrolyzate thereof and (2) 100 parts by weight of a silane compound and/or a hydrolyzate thereof is applied to a polycarbonate sheet to form a protective coating having mar and weather resistance. A composition comprising the reaction product of a hydroxyl group-containing benzophenone compound with a silane and/or a hydrolyzate thereof is useful for undercoating.
在聚
碳酸酯板材上涂抹由以下成分组成的组合物:(1) 0.1-50 份(按重量计)含羟基的
二苯甲酮化合物与
硅烷和/或其
水解物的反应产物;(2) 100 份(按重量计)
硅烷化合物和/或其
水解物,以形成具有抗磨损性和耐候性的保护涂层。由含羟基的
二苯甲酮化合物与
硅烷和/或其
水解物的反应产物组成的组合物可用于底涂层。