A curable composition. The composition contain
(A) a copolymer that has silicon-containing functional groups capable of crosslinking by forming siloxane bonds and whose molecular chain consists substantially of:
(1) an alkyl acrylate ester monomeric unit and/or an alkyl methacrylate ester monomeric unit, the alkyl of each being 1 to 8 carbon atoms; and
(2) an alkyl acrylate ester monomeric unit and/or an alkyl methacrylate ester monomeric unit, the alkyl of each being at least 10 carbon atoms;
(B) an oxyalkylene polymer having silicon-containing functional groups that are capable of crosslinking by forming siloxane bonds; and
(C) at least one compound selected from
(i) a hydrolyzable organic silane monomer represented by the formula (I):
R¹4-nSiXn
wherein X is a hydrolyzable group, R¹ is a monovalent organic group having 1 to 18 carbon atoms, n is an integer of 1 to 4, and each R¹ or X can be the same or different when two or more R¹ or X groups are attached,
(ii) a partial hydrolysis condensate of the organic silane monomer represented by the formula (I), and
(iii) an orthoorganic acid ester represented by the formula (II):
R²C(OR³)₃
wherein R² is hydrogen or methyl, R³ is a monovalent organic group having 1 to 8 carbon atoms, and the three R³ groups do not need to be the same.
一种可固化组合物。该组合物包含
(A) 具有含
硅官能团的共聚物,该官能团能通过形成
硅氧烷键而交联,其分子链主要由以下部分组成:
(1)
丙烯酸烷基酯单体单元和/或
甲基丙烯酸烷基酯单体单元,每个单体的烷基为 1 至 8 个碳原子;和
(2) 一个
丙烯酸烷基酯单体单元和/或一个
甲基丙烯酸烷基酯单体单元,每个单体的烷基至少为 10 个碳原子;
(B) 含
硅官能团的氧亚链聚合物,该官能团可通过形成
硅氧烷键而交联;以及
(C) 至少一种选自以下物质的化合物
(i) 由式 (I) 表示的可
水解有机
硅烷单体:
R¹4-nSiXn
其中 X 是可
水解基团,R¹ 是具有 1 至 18 个碳原子的一价有机基团,n 是 1 至 4 的整数,当连接两个或两个以上 R¹ 或 X 基团时,每个 R¹ 或 X 可以相同或不同、
(ii) 式(I)代表的有机
硅烷单体的部分
水解缩合物,和
(iii) 式(II)代表的原有机酸酯:
R²C(OR³)₃
其中 R² 是氢或甲基,R³ 是具有 1 至 8 个碳原子的一价有机基团,三个 R³ 基团不必相同。