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US 6,475,561 B1Granted
Method of producing silicon tetrachloride-based and organically modified aerogels
AssigneeCabot Corporation
InventorFritz Schwertfeger
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Abstract
The present invention refers to a method of producing organically modified aerogels on a basis of silicon tetrachloride in which: a) a hydrogel is obtained by direct reaction of silicon tetrachloride with water, b) the hydrogel obtained in step a) is surface-modified, and c) the surface-modified gel obtained in step b) is dried.
Claims20
A method of producing organically modified aerogels in which:
- a) a hydrogel is obtained by direct reaction of silicon tetrachloride with water,
- b) the hydrogel in step a) is surface-modified, and
- c) the surface-modified gel obtained in step b) is dried,
- wherein the hydrogel obtained is surface-silylated in step b).
1 more element
Dependencies are inferred from the claim text.