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    • 8. 发明授权
    • Curable composition
    • 可固化组合物
    • US4543403A
    • 1985-09-24
    • US587962
    • 1984-03-09
    • Katsuhiko IsayamaToshifumi HiroseFumio Kawakubo
    • Katsuhiko IsayamaToshifumi HiroseFumio Kawakubo
    • C08F2/00C08F2/38C08F4/00C08F4/04C08F4/42C08F8/00C08F8/42C08F20/12C08F30/00C08F30/08C08F220/00C08F220/10C08L33/04C08L33/06C09J133/06C08F26/12C08F126/08C08F226/08
    • C08F20/12C09J133/06
    • A moisture curable composition comprising an acrylate or methacrylate polymer having a silicon functional group capable of causing crosslinking or chain extension by moisture, at least in molecular ends, and being useful particularly as a sealing material and a pressure sensitive adhesive, said polymer being prepared by polymerizing (a) an alkyl acrylate or methacrylate or a monomer mixture of at least 50% by weight of the alkyl acrylate or methacrylate and other unsaturated compounds copolymerizable therewith and (b) 0 to 20 parts of .alpha.,.beta.-ethylenically unsaturated organic silicon compound in the presence of (c) 0.01 to 20 parts of a radical polymerization initiator having a group of the general formula: ##STR1## wherein R.sup.3 is a monovalent hydrocarbon group having 1 to 6 carbon atoms, X is a hydrolyzable group and "a" is 0, 1 or 2, and (d) 0 to 20 parts of a chain transfer agent selected from the group consisting of a compound of the general formula: ##STR2## and a compound of the general formula: ##STR3## wherein R.sup.3, X and "a" are as defined above, and R.sup.4 is a bivalent organic group, said parts of (b), (c) and (d) being parts by weight per 100 parts by weight of (a).
    • 一种防湿固化组合物,其包含具有硅官能团的丙烯酸酯或甲基丙烯酸酯聚合物,其能够至少在分子末端由水分引起交联或链延长,并且特别用作密封材料和压敏粘合剂,所述聚合物由 聚合(a)丙烯酸烷基酯或甲基丙烯酸烷基酯或至少50重量%的丙烯酸烷基酯或甲基丙烯酸烷基酯和可与其共聚的其它不饱和化合物的单体混合物和(b)0至20份α,β-烯属不饱和有机硅化合物 在(c)0.01〜20份具有以下通式的基团的自由基聚合引发剂:其中R 3是具有1至6个碳原子的一价烃基,X是可水解基团,“a” 是0,1或2,和(d)0〜20份选自下列化合物的链转移剂:< IMAGE>和t的化合物 他的通式:其中R3,X和“a”如上所定义,R4是二价有机基团,(b),(c)和(d)的所述部分是每100份 (a)的重量。