Organosilicon materials

Details Organosilicon materials Organosilicon materials

C - Chemistry, Metallurgy

07

F

402/16, 260/442,

C07F 7/18 (2006.01) C08G 77/12 (2006.01) C08G 77/50 (2006.01) C08J 5/24 (2006.01) C08L 83/05 (2006.01) C08L 83/07 (2006.01) C08L 83/14 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2027697

A crosslinkable organosilicon prepolymer and a crosslinked organosilicon polymer comprising alternating hydrocarbon and cyclic polysiloxane radicals, which is the hydrosilation reaction product of: (a) at least one polyene having at least two non-aromatic, non-conjugated carbon-carbon double bonds highly reactive in hydrosilation, the carbon-carbon double bonds being either in an alpha, beta or gamma position on a linear carbon moiety, next to two bridgehead positions in a strained polycyclic aliphatic ring structure, or in a cyclobutene ring, other than polycyclic polyenes having two reactive double bonds in a fused ring system; (b) at least one polycyclic polyene having at least two chemically distinguishable non-aromatic, non-conjugated carbon-carbon double bonds in its rings; (c) at least one cyclic polysiloxane containing three or more =SiH groups.

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