Claims
- 1. A foamable composition comprising by weight,
- (A) 100 parts of a vinyl-terminated polydiorganosiloxane,
- (B) 0.5-50 parts of a hydride polysiloxane consisting essentially of a mixture of 20% to 85% by weight of a substantially linear hydride polysiloxane and 15% to 80% by weight of cyclic hydride polysiloxane,
- (C) 0.2-10 parts of a hydroxylated material consisting essentially of a mixture of 0% to 40% by weight of a C.sub.(1-8) alkanol and 60% to 100% by weight of water, and
- (D) an effective amount of a platinum catalyst.
- 2. A foamable composition in accordance with claim 1, where the vinyl terminated polydiorganosiloxane is a vinyl terminated polydimethylsiloxane.
- 3. A foamable composition in accordance with claim 1, where the hydroxylated material is a mixture of methanol and water.
- 4. A foamable composition in accordance with claim 1, where the platinum catalyst is a platinum vinyldisiloxane.
- 5. A foamable composition in accordance with claim 1, where the cyclic hydride polysiloxane is a hydride cyclotetrasiloxane.
- 6. A method for making silicone foam having a reduced foam density comprising agitating a mixture of ingredients comprising, by weight,
- (A) 100 parts of a vinyl-terminated polydiorganosiloxane,
- (B) 0.5-50 parts of a hydride polysiloxane consisting essentially of a mixture of 20% to 85% by weight of a substantially linear hydride polysiloxane and 15% to 80% by weight of cyclic hydride polysiloxane,
- (C) 0.2-10 parts of a hydroxylated material consisting essentially of a mixture of 0% to 40% by weight of a C.sub.(1-8) alkanol and 60% to 100% by weight of water, and
- (D) an effective amount of a platinum catalyst.
Parent Case Info
This application is a continuation of application Ser. No. 235,135, filed Aug. 23, 1988 now abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
235135 |
Aug 1988 |
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