Patent ID: 6569794
Filing Date: 2003-05-27
Classification: C08K,H01B,Y10S

Abstract:
A composition for use as thermal insulation or as a barrier in articles that are required to function under transient elevated temperature conditions, comprising at least two components, a first of the two components, at temperatures up to approximately 300Â° C., being ductile or flexible, but which fuses and/or decomposes at temperatures above approximately 300Â° C. but below 1000Â° C., a second of the two components being dispersed within the first component, and the first component being cohesive at temperatures up to approximately 300Â° C. so as to retain the second component and stay substantially in place, the second component undergoing fusion and/or decomposition in transition to a temperature between 400Â° C. and 850Â° C., the second component being ductile or flexible at temperatures between 400Â° C. and 850Â° C. and being cohesive so as to stay substantially in place at temperatures between 400Â° C. and 850Â° C., wherein the first component is a silicone polymer and the second component includes an oxide, the oxide being treated or mixed with material to reduce the fusion and/or decomposition temperature of the second component to lie between 400Â° C. and 850Â° C., said oxide being an oxide of aluminum, silicon, magnesium or boron or a combination of one or more of aluminum, silicon, magnesium or boron oxides.