申请人:LOCTITE (IRELAND) Ltd.
公开号:EP0190831A2
公开(公告)日:1986-08-13
A composition curable to a cross-linked solid polymer with UV irradiation comprising a) a polythiol compound having at least 2 thiol groups per molecule; b) an 'ene compound having at least one vinyl cycloacetal group selected from the formulas:
and
and c) a cationic photoinitiator.
The compositions cure in seconds or minutes at ambient temperatures in conventional UV ovens to crosslinked solids with enhanced properties over comparable formulations employing radical photoinitiators.
一种可在紫外线照射下固化为交联固体聚合物的组合物,包括 a) 每分子至少具有 2 个硫醇基团的聚硫醇化合物; b) 具有至少一个乙烯基环缩醛基团的烯化合物,该基团选自以下公式
和
c) 阳离子光引发剂。
与采用自由基光引发剂的同类配方相比,这些组合物在常规紫外线烘箱中的环境温度下,只需几秒或几分钟就能固化成交联固体,并具有更强的性能。