申请人:Loctite (Ireland) Ltd.
公开号:US05021512A1
公开(公告)日:1991-06-04
Curable thiol/ene compositions comprise: (1) a multifunctional styryloxy monomer having one or more of the following structures ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are selected from vinyl (--CH.dbd.CH.sub.2), 1-propenyl (--CH.dbd.CH--CH.sub.3), isopropenyl ##STR2## hydrogen, lower alkyl or alkoxy, provided that at least one of R.sup.1, R.sup.2 and R.sup.3 must be vinyl, 1-propenyl or isopropenyl; n is an integer .gtoreq.1; if n=1, then R.sup.4 is a monovalent hydrocarbon radical containing one free-radically copolymerizable alkenyl or cycloalkenyl group, if n.gtoreq.2, R.sup.4 is a multivalent hydrocarbon radical which may contain a maximum of one free-radically copolymerizable alkenyl or cycloalkenyl group; R.sup.5 is a divalent hydrocarbon radical; or a carbon atom which is part of a cyclic group in the radical G; or a radical of formula ##STR3## where R.sup.7 is a divalent hydrocarbon radical; if n=1, G is a monovalent organic or inorganic radical, free of phenolic hydroxyl groups or other groups which substantially interfere with radical polymerization, containing one free-radically copolymerizable alkenyl or cycloalkenyl group; if n.gtoreq.2, G is a multivalent organic or inorganic radical, free of phenolic hydroxyl groups or other groups which substantially interfere with radical polymerization, which may contain a maximum of one free-radically copolymerizable alkenyl or cycloalkenyl group; R.sup.6 is a lower alkyl or cycloalkyl group; or if n=1, R.sup.6 may also be an alkenyl or cycloalkenyl group, provided that G does not contain an alkenyl or cycloalkenyl group. (2) a multifunction thiol. (3) a free-radical curing rate accelerator. Novel styryloxy compounds are described which are reaction products of isoeugenol and (a) multifunctional epoxy compounds or (b) allyl glycidyl ether with or without a multifunctional polydimethylsiloxane.
可治愈的硫醇/烯组合物包括:(1)一种多功能的苯乙烯氧单体,具有以下一种或多种结构之一:其中R1、R2和R3从乙烯(--CH.dbd.CH.sub.2)、1-丙烯基(--CH.dbd.CH--CH.sub.3)、异丙烯基##STR2##氢、低级烷基或烷氧基中选择,但必须至少有R1、R2和R3中的一个是乙烯、1-丙烯基或异丙烯基;n是大于等于1的整数;如果n=1,则R4是含有一个自由基共聚烯基或环烯基基团的单价碳氢基团,如果n≥2,则R4是一个多价碳氢基团,最多可以含有一个自由基共聚烯基或环烯基基团;R5是一个二价碳氢基团;或者是G基团中的一个环状基团中的碳原子;或式子##STR3##其中R7是一个二价碳氢基团;如果n=1,则G是一个单价的有机或无机基团,不含酚羟基或其他实质上干扰自由基聚合的基团,含有一个自由基共聚烯基或环烯基基团;如果n≥2,则G是一个多价的有机或无机基团,不含酚羟基或其他实质上干扰自由基聚合的基团,最多可以含有一个自由基共聚烯基或环烯基基团;R6是一个低级烷基或环烷基基团;或者如果n=1,则R6也可以是烯基或环烯基基团,但G不含有烯基或环烯基基团。(2)一种多功能硫醇。(3)一种自由基固化速率促进剂。还描述了新的苯乙烯氧化合物,它们是异丁香酚和(a)多功能环氧化合物或(b)丙烯酸甘油醚与或不带多功能聚二甲基硅氧烷的反应产物。