A curable composition comprises (A) an organic/inorganic composite in which a hydrolyzable silyl group and/or SiOH group-containing polysiloxane is bonded to a vinyl polymer through a Si—C bond, and (B) an organic UV absorber having a molecular weight of at least 500 and a weight retentivity of at least 95% when held at 150° C. for 24 hours in an open state. The curable composition is coated and cured to an article, whereby the article is endowed with satisfactory weathering resistance while minimizing coloration or degradation.
一种可治愈的组合物包括(A)一种有机/无机复合物,其中通过Si-C键将可
水解的
硅基团和/或含有SiOH基团的聚
硅氧烷与
乙烯基聚合物结合,和(B)一种分子量至少为500且在开放状态下保持150°C持续24小时时重量保留率至少为95%的有机
紫外线吸收剂。将可治愈的组合物涂覆并固化到物品上,从而使物品在最小化着色或降解的同时具有令人满意的耐候性。