Platinum catalyzed hydrosilylation reactions utilizing cyclodiene additives
AssigneeMomentive Performance Materials Inc.
InventorsAroop K. Roy, Julie L. Boyer
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Abstract
A process and composition for the hydrosilylation of an unsaturated compound comprising reacting (a) a silyl hydride with (b) an unsaturated compound in the presence of (c) a platinum compound and (d) a cyclodiene, with the proviso that when the unsaturated compound is a terminal alkyne, the silyl hydride is other than a halosilane. The process and composition optionally comprise an inhibitor (e). The process and composition may be employed to form a variety of hydrosilylation products.
Claims35
A process for producing a crosslinked product comprising reacting (a) a silyl hydride with (b) an alkenyl silicone in the presence of (c) a platinum compound, (d) a cyclodiene, and (e) optionally a cure inhibitor.
A composition comprising (a) a silyl hydride, (b) an alkenyl silicone compound, (c) a platinum compound, (d) a cyclodiene, and (e) optionally an inhibitor, where the cyclodiene (d) is a compound of the formula:
- wherein R1-R8, R3′, R4′, R7′, and R8′ are independently hydrogen;
- an substituted or unsubstituted alkyl or aryl group optionally containing at least one heteroatom;
- an alkoxy;
- and a halogen radical;
- optionally R1-R2 and/or R5-R6 taken together may form a saturated or unsaturated ring structure.
Dependencies are inferred from the claim text.