Abstract: A heat curable liquid silicone rubber composition with good hydrocarbon oil resistance comprises:(A) a first vinyl-containing polydiorganosiloxane that is vinyldiorganosiloxy terminated, having a viscosity of from 20 to 200 Pa.s at 25.degree. C. and containing essentially no ethylenically unsaturated hydrocarbon radicals bonded to non-terminal silicon atoms,(B) a second vinyl-containing polydiorganosiloxane that is either vinyldiorganosiloxy terminated or triorganosiloxy terminated, miscible with the first polydiorganosiloxane and having a viscosity of from about 0.1 to 200 Pa.s at 25.degree. C.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decreased friability, comprising a siloxane base polymer having an average of at least two hydroxyl groups per molecule, a silicon-containing crosslinker for the siloxane base polymer, wherein the crosslinker contains at least two --SiH groups per molecule; a platinum group catalyst; a silicone resin copolymer; and optionally, a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using a silicone foam so prepared.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decreased friability, comprising (A) a siloxane base polymer system which is a combination of a high molecular weight hydroxyl-group containing siloxane polymer and a low molecular weight hydroxyl-group containing siloxane polymer; (B) a silicon-containing crosslinker for the siloxane base polymer system, wherein the crosslinker contains at least two --SiH groups per molecule; (C) a platinum group catalyst; (D) a silicone resin copolymer; and optionally (E) a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using a silicone foam so prepared.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decrease friability, comprising (A) a siloxane base polymer system which is a combination of a high molecular weight hydroxyl-group containing siloxane polymer and a low molecular weight hydroxyl-group containing siloxane polymer; (B) a silicon-containing crosslinker for the siloxane base polymer system, wherein the crosslinker contains at least two --SiH groups per molecule; (C) a platinum group catalyst; and optionally (E) a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using the silicone foam so prepared.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decreased friability, comprising a siloxane base polymer having an average of at least two hydroxyl groups per molecule; a silicon-containing crosslinker for the siloxane base polymer, wherein the crosslinker contains at least two --SiH groups per molecule; a platinum group catalyst; a silicone resin copolymer; and optionally, a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using a silicone foam so prepared.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decreased friability, comprising (A) a siloxane base polymer system which is a combination of a high molecular weight hydroxyl-group containing siloxane polymer and a low molecular weight hydroxyl-group containing siloxane polymer; (B) a silicon-containing crosslinker for the siloxane base polymer system, wherein the crosslinker contains at least two -SiH groups per molecule; (C) a platinum group catalyst; (D) a silicone resin copolymer; and optionally (E) a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using a silicone foam so prepared.

Abstract: Foamable organosiloxane compositions which yield, upon cure, silicone foams having low density and decrease friability, comprising (A) a siloxane base polymer system which is a combination of a high molecular weight hydroxyl-group containing siloxane polymer and a low molecular weight hydroxyl-group containing siloxane polymer; (B) a silicon-containing crosslinker for the siloxane base polymer system, wherein the crosslinker contains at least two --SiH groups per molecule; (C) a platinum group catalyst; and optionally (E) a blowing agent; and silicone foams prepared therefrom. A method of weather-stripping a door or window using the silicone foam so prepared.