申请人:Loctite Corporation
公开号:US05171816A1
公开(公告)日:1992-12-15
A composition cureable to a solid crosslinked polyorganosiloxane comprises: a) a norbornene functional silicone prepolymer having a plurality of groups of the formula: ##STR1## bound to silicon atoms thereof, where R is H or methyl, R.sup.1 is a direct bond or --C(.dbd.O)O-- and R.sup.4 is ethylene, ethenylene, propylene or propenylene, b) a coreactive silicone prepolymer selected from SiH functional silicones, and alkylthiol functional silicones, said polyorganosiloxanes (a) and (b) being present in an equivalent ratio of between 2:1 and 1:2 norbornene to silicon hydride or alkyl thiol groups, and c) an effective amount of a hydrosilation or thiol-ene cure catalyst, respectively.
可固化为交联聚有机硅的组合物包括:a)一种诺博烯官能团硅预聚物,其具有多个式子的基团:##STR1##与其上的硅原子结合,其中R为H或甲基,R.sup.1为直接键或--C(.dbd.O)O--,R.sup.4为乙烯,乙烯基,丙烯或丙烯基,b)一种核反应硅预聚物,选择自SiH官能团硅和烷基硫醇官能团硅,所述聚有机硅(a)和(b)以2:1至1:2的诺博烯与硅氢或烷基硫醇基团的当量比存在,并且c)有效量的氢化硅化或硫醇烯基固化催化剂,分别。