Xerogels and their preparation

Details Xerogels and their preparation Xerogels and their preparation

1993-04-26

2000-12-05

Lovering, Richard D.

Compositions

Electrolytes for electrical devices

423338, 427219, 428405, 501 12, 516101, E04B 174, B01J 1300, B05D 700

Patent

active

061562238

ABSTRACT:
Thermally insulative xerogels and their preparation are described. To obtain these xerogels, an inorganic gel having hydroxyl moieties is reacted with a silicon-nitrogen compound which has a C.sub.1-6 hydrocarbon moiety on the silicon. Shrinkage of the gel during drying the gel is reduced and a more highly porous xerogel is obtained. The more highly porous xerogel has a low thermal conductivity which makes it a good thermal insulation.

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