Three-dimensionally connected silica sphere-resin composite and

Details Three-dimensionally connected silica sphere-resin composite and Three-dimensionally connected silica sphere-resin composite and

1997-05-22

1999-05-04

Seidleck, James J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524492, 524265, 524266, 524588, 524731, 523212, 523213, 423335, 423336, 423338, 423339, 423349, C08K 336, C01B 33141

Patent

active

059004509

ABSTRACT:
A method for preparing a three dimensionally connected silica spheres-resin composite, which comprises hydrolyzing and polymerizing a low molecular weight polyalkoxysilane in the presence of an acid catalyst in a mixed solution of the low molecular weight polyalkoxysilane and a water-soluble polymer in a solvent mixture of water and alcohol to obtain a three dimensional connected silica spheres, impregnating the three dimensional connected silica spheres with at least one material selected from resin-forming monomers and resin-forming prepolymers, and curing the material. The composite obtained by the above method retains its strength even at high temperatures where the organic matter undergoes pyrolysis or burnout.

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