C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/9
C08F 30/08 (2006.01) C08F 20/12 (2006.01) C08G 77/00 (2006.01) C09J 133/06 (2006.01)
Patent
CA 1219099
Abstract of the Disclosure A moisture curable composition comprising an arcylate 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: Image wherein R3 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: Image and a compound of the general formula: Image wherein R3, X and "a" are as defined above, and R4 is a bivalent organic group, said parts of (b), (c) and (d) being parts by weight per 100 parts by weight of (a).
449264
Hirose Toshifumi
Isayama Katsuhiko
Kawakubo Fumio
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
Osler Hoskin & Harcourt Llp
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