Foamable siloxane compositions and silicone foams prepared there

Details Foamable siloxane compositions and silicone foams prepared there Foamable siloxane compositions and silicone foams prepared there

1996-12-16

1997-09-23

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521134, C08J 900

Patent

active

056705565

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.

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