C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/07 (2006.01) C08K 5/549 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2292229
A silicone rubber composition comprising (A) 100 weight parts of a polydiorganosiloxane mixture comprising (i) 1 to 99 wt% polydiorganosiloxane having at least two silicon atom-bonded vinyl groups per molecule and (ii) the remaining percentage of polydiorganosiloxane having at least two non-vinyl silicon atom- bonded alkenyl groups per molecule, (B) a polyorganosiloxane having at least two silicon atom- bonded hydrogen atoms per molecule, (C) 0.1 to 10 weight parts of a silatrane derivative described by general formula Image where each R1 group is independently selected from the group consisting of a hydrogen atom and alkyl groups; each R2 group is independently selected from the group consisting of a hydrogen atom, alkyl groups, and alkenyloxyalkyl groups described by the general formula -R4-O-R5 where R4 is an alkylene group, and R5 is an alkenyl group; at least one R2 group is an alkenyloxyalkyl group; and R3 is a group selected from the group consisting of substituted and unsubstituted monovalent hydrocarbon groups, C1 to C10 alkoxy groups, glycidoxyalkyl groups, oxiranylalkyl groups, acyloxyalkyl groups, and aminoalkyl groups: and (D) a platinum type catalyst in an amount sufficient to cure the composition.
Nakamura Akito
Takuman Osamu
Yoshitake Makoto
Dow Corning Toray Silicone Company Ltd.
Gowling Lafleur Henderson Llp
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