Silicone grease composition
AssigneeToshiba Silicone Co., Ltd.
InventorsMasanori Toya, Hideo Takahashi, Yasuji Matsumoto
Life of this patent
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Abstract
A silicone grease composition comprising: (A) 100 parts by weight of a polyorganosiloxane containing at least two silicon-bonded vinyl groups per molecule and having a viscosity at 25.degree. C. of from 10 to 1,000,000 cSt; (B) from 10 to 200 parts by weight of a filler comprising at least one member selected from the group consisting of calcium carbonate, zinc carbonate, a composite zinc white, and silica; and (C) from 0.001 to 0.1 part by weight of platinum or a platinum compound.
Claims10
A silicone grease composition comprising:
- (A) 100 parts by weight of a polyorganosiloxane containing at least two silicon-bonded vinyl groups per molecule and having a viscosity at 25.degree. C. of from 10 to 1,000,000 cSt;
- (B) from 10 to 200 parts by weight of a filler comprising at least one member selected from the group consisting of calcium carbonate, zinc carbonate and a composite zinc white;
- and
- (C) from 0.001 to 0.1 part by weight of platinum or a platinum compound.
A high-voltage insulated device containing high-voltage junctions covered with electrically insulating silicone rubber caps, wherein an inner face of the cap or a surface of the junction is coated with a silicone grease composition comprising:
- (A) 100 parts by weight of a polyorganosiloxane containing at least two silicon-bonded vinyl groups per molecule and having a viscosity at 25.degree. C. of from 10 to 1,000,000 cSt;
- (B) from 10 to 200 parts by weight of a filler comprising at least one member selected from the group consisting of calcium carbonate, zinc carbonate and a composite zinc white;
- and
- (C) from 0.001 to 0.1 part by weight of platinum or a platinum compound.
Dependencies are inferred from the claim text.