Disclosed are protective coating compositions having enhanced gloss retention properties formed by steps comprising: (i) providing one or more fluorocopolymers by copolymerization of (1) one or more hydrofluoroolefin monomer(s) selected from the group consisting of hydrofluoroethylenes, hydrofluoropropenes, hydrofluorobutenes, hydrofluoropentenes and combinations of these, (2) one or more vinyl ester monomer(s), and (3) one or more vinyl ether monomer(s), wherein at least a portion of said vinyl ether monomer is a hydroxyl group-containing vinyl ether monomer, wherein the copolymer preferably has a number average molecular weight of greater than about 10,000; (ii) providing a VOC containing carrier for said one or more fluorocopolymers; and (iii) providing a stabilizing agent comprising: a) a radical scavenger and b) an absorber of UV light; and (iv) combining said one or more fluorocopolymers with said carrier and said stabilizing agent to produce a polymeric coating composition.
所公开的保护性涂层组合物具有增强的光泽保持性能,其形成步骤包括(i) 通过以下单体的共聚提供一种或多种含
氟聚合物:(1) 一种或多种氢
氟烯烃单体,这些单体选自由氢
氟乙烯、氢
氟丙烯、氢
氟丁烯、氢
氟戊烯及其组合组成的组、(2) 一种或多种
乙烯基酯单体,和 (3) 一种或多种
乙烯基醚单体,其中所述
乙烯基醚单体的至少一部分是含羟基的
乙烯基醚单体,共聚物的平均分子量最好大于约 10,000 ;(ii) 为所述一种或多种含
氟聚合物提供含挥发性有机化合物的载体;以及 (iii) 提供稳定剂,包括a) 自由基清除剂和 b)
紫外线吸收剂;以及 (iv) 将所述一种或多种含
氟聚合物与所述载体和所述稳定剂结合,制成聚合物涂层组合物。