Patent ID: 6624228
Filing Date: 2003-09-23
Classification: C04B

Abstract:
A preceramic composite intermediate composition consisting essentially of a mixture of greater than 30 parts by weight of a polysilastyrene ceramic precursor oligomer or polymer having a number average molecular weight in the range of from about 200 to about 100,000 g/mole having uniformly dispersed therein less than 70 parts by weight of a crystalline aluminosilicate particulate material having a decomposition temperature greater than 400Â° C., said particulate material having a mean particle size or mean diameter of less than about 10 microns; whereby the preceramic composite intermediate composition is capable of forming a microporous ceramic product having a surface area in excess of 50 m2/gm and a volume of micropores greater than about 0.015 cm2/gm.