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US 5,206,329 AGranted
One part heat curable organopolysiloxane compositions
AssigneeGeneral Electric Company
InventorsChris A. Sumpter, Larry N. Lewis, Samuel J. Danishefsky
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Abstract
Heat curable organopolysiloxane compositions are provided which utilize a vinyl containing polydiorganosiloxane, silicon hydride siloxane, a platinum group metal catalyst, and a triazoline dione as an inhibitor for the platinum group metal catalyst. The heat curable organopolysiloxane compositions of the present invention exhibit improved shelf stability, cure time and resistance to change in final properties when subjected to heat aging.
Claims8
A one part heat curable organopolysiloxane composition comprising,
- (A) vinyl substituted organopolysiloxane fluid
- (B) siloxane hydride
- (C) an amount of a platinum group metal catalyst which is sufficient to effect addition between (A) and (B), and
- (D) an amount of a triazoline dione which is effective as a hydrosilylation inhibitor.
1 more element
A one part heat curable organopolysiloxane composition comprising by weight,
- (E) 100 parts of a vinyl substituted organopolysiloxane fluid,
- (F) 1 to 20 parts of a siloxane hydride,
- (G) an amount of a platinum group metal catalyst which is effective as a hydrosilylation catalyst, and
- (H) an amount of a triazoline dione which is effective as a hydrosilylation inhibitor.
1 more element
Dependencies are inferred from the claim text.