A silyl group-containing, polyester-modified vinyl resin comprising
(A) 3 to 45% by weight of units of a polyester resin including a polymerizable unsaturated group,
(B) 5 to 30% by weight of units having a group of the formula (I):
wherein R1 is hydrogen atom or a monovalent hydrolyzable group having 1 to 10 carbon atoms selected from the group consisting of an alkyl goup, an aryl group and an aralkyl group, R2 is an organic residue having a polymerizable double bond, X is a hydrolyzable group and n is an integer of 1 to 3, and
(C) 25 to 92% by weight of units of a copolymerizable vinyl monomer. The vinyl resin has excellent dispersibility, color match stability and storage stability.
The invention also comprises the use of such vinyl resins as film forming agent in coating agents.
一种含
硅烷基的聚酯改性
乙烯基树脂,包括
(A) 3 至 45%(按重量计)的聚酯
树脂单元,包括可聚合的不饱和基团、
(B) 5%至 30%(按重量计)具有式(I)基团的单元:
其中 R1 为氢原子或具有 1 至 10 个碳原子的一价可
水解基团,该基团选自烷基、芳基和芳烷基组成的组,R2 为具有可聚合双键的有机残基,X 为可
水解基团,n 为 1 至 3 的整数,以及
(C) 25%至 92%(按重量计)的可共聚
乙烯基单体单元。这种
乙烯基树脂具有优异的分散性、配色稳定性和储存稳定性。
本发明还包括在涂层剂中使用这种
乙烯基树脂作为成膜剂。