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US 4,374,967 AGranted
Low temperature silicone gel
AssigneeDow Corning Corporation
InventorsPaul L. Brown, Chi-Long Lee, Myron T. Maxson
Life of this patent
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Abstract
This invention relates to a novel low-temperature dielectric silicone gel which is the reaction product of a polyorganosiloxane consisting essentially of Me.sub.2 SiO, MeSiO.sub.1.5, Me.sub.3 SiO.sub.0.5 and Me.sub.2 ViSiO.sub.0.5 ; an organohydrogensiloxane and a platinum catalyst.
Claims10
A curable siloxane composition comprising an intimate mixture consisting essentially of:
- (1) a polyorganosiloxane consisting essentially of 80 to 96.5 mol % of (CH.sub.3).sub.2 SiO, 2.0 to 10.0 mol % of CH.sub.3 SiO.sub.1.5, 1.25 to 6.0 mol % of (CH.sub.3).sub.3 SiO.sub.0.5, and 0.25 to 4.0 mol % of (CH.sub.3).sub.2 (CH.sub.2 .dbd.CH)SiO.sub.0.5 ;
- (2) an organohydrogensiloxane having an average of more than one silicon-bonded hydrogen atom per molecule and no more than one silicon-bonded hydrogen atom per silicon atom and organic radicals selected from the group consisting of alkyl radicals having from one to six carbon atoms per radical, phenyl and 3,3,3-trifluoropropyl, said organohydrogensiloxane providing an average of 0.2 to 5.0 moles of silicon-bonded hydrogen per mole of silicon-bonded vinyl;
- and
- (3) a platinum catalyst.
1 more element
Dependencies are inferred from the claim text.