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US 4,357,443 AGranted
One package, moisture curable, organopolysiloxane compositions and method for making
AssigneeGeneral Electric Company
InventorsMary A. White, Diane V. Brezniak
Life of this patent
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Abstract
One package moisture curable organopolysiloxane compositions are provided based on the use of a silanol-terminated polydiorganosiloxane, an alkoxy silane crosslinking agent and a vanadium compound as a curing catalyst. The moisture curable organopolysiloxane compositions are non-corrosive and substantially odor-free.
Claims6
One-package, room temperature vulcanizable organopolysiloxane compositions comprising by weight,
- (A) 100 parts of a silanol-terminated polydiorganosiloxane consisting essentially of chemically combined units of the formula, ##STR7## (B) 0.1 to 10 parts of an alkoxy silane of the formula and ##STR8## (C) an effective amount of either a V.sup.+3 to V.sup.+5 inclusive vanadium compound soluble in the room temperature vulcanizable organopolysiloxane composition, or a V.sup.+3 to V.sup.+5 inclusive vanadium compound insoluble in the room temperature vulcanizable organopolysiloxanee composition, but capable of forming soluble hydrolysis products upon contact with atmospheric moisture while in the presence of the room temperature vulcanizable organopolysiloxane composition.
Dependencies are inferred from the claim text.