申请人:TORAY INDUSTRIES, INC.
公开号:EP0065388A1
公开(公告)日:1982-11-24
Provided are coating-forming coating compositions comprising the following components A and B, preferably further including the following component C and/or D, and having superior surface hardness, abrasion resistance, flexibility, dyeability and durability, as well as coatings formed by curing such coating compositions:
A. A vinyl polymer having a group represented by the general formula R1m(R2O)3-mSi- wherein R1 is methyl or ethyl, R2 is an alkyl, alkoxyalkyl or acyl group having not more than 4 carbon atoms, with silicon being attached to the polymer by Si-C bond, and m is 0, or 2.
B. Fine particles of silica having an : verage diameter of particles in the range of about 1 to about 200 nm.
C. A curing catalyst.
D. At least one compound selected from the group consisting of acrylic resins, polyester resins, alkyd resins, epoxy resins, cellulose resins, amino resins and silicon compounds represented by the general formula R5aR6bSi(OR7)4-(a+b) wherein R5 and R6 are each an alkyl, alkenyl, aryl, halogenated alkyl or alkenyl group having 1 to 10 carbon atoms or an organic group having an epoxy, (meth)acryloxy or cyano group, bonded to silicon by Si-C bond, R7 is an alkyl, alkoxyalkyl or acyl group having 1 to 8 carbon atoms, a and b are each 0,1 or 2 provided a + b equals 0, or 2.
本发明提供了由以下成分 A 和 B 组成的涂层形成涂料组合物,最好还包括以下成分 C 和/或 D,并具有优异的表面硬度、耐磨性、柔韧性、染色性和耐久性,以及通过固化此类涂料组合物形成的涂层:
A.具有通式 R1m(R2O)3-mSi- 所代表基团的
乙烯基聚合物 其中 R1 是甲基或乙基,R2 是烷基、烷氧基烷基或酰基,具有不超过 4 个碳原子,
硅通过 Si-C 键连接到聚合物上,m 是 0 或 2。
B.
二氧化硅细颗粒,其颗粒直径在约 1 至约 200 纳米之间。
C.固化催化剂。
D.至少一种选自
丙烯酸树脂、聚酯
树脂、醇酸
树脂、环氧
树脂、
纤维素树脂、
氨基
树脂和由通式 R5aR6bSi(OR7)4-(a+b)表示的
硅化合物所组成的组的化合物 其中 R5 和 R6 各为烷基、烯基、芳基、卤代烷基或烷基,具有约 10 个烷基、烯基、芳基或卤代烷基、R7 是具有 1 至 8 个碳原子的烷基、烷氧基烷基或酰基,a 和 b 分别为 0、1 或 2,条件是 a + b 等于 0 或 2。