Heat curable silicone rubber compositions

Details Heat curable silicone rubber compositions Heat curable silicone rubber compositions

C - Chemistry, Metallurgy

08

L

C08L 83/07 (2006.01) C08K 5/14 (2006.01) C08L 83/04 (2006.01)

Patent

CA 2048776

PATENTS 60SI-1336/MAM/0267m Abstract of the Disclosure The present invention provides an improved heat curable silicone composition, having increased tear strength, oil resistance, and reduced compression set, comprising (A) a blend containing (1) a vinyl-containing organopolysiloxane or vinyl-containing organopolysiloxane blend having a viscosity of about 5,000 to about 500,000 centipoise at 25°C, and (2) a vinyl-containing organopolysiloxane or vinyl-containing organopolysiloxane blend having a viscosity of about 8,000,000 to about 100,000,000 centipoise at 25°C; (B) an organopolysiloxane resin copolymer; (C) an organic peroxide catalyst; (D) a filler; and (E) an organohydrogenpolysiloxane.

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