Sol-gel compositions containing silane and alumina
AssigneePPG Industries, Inc.
InventorsChia-Cheng Lin, Charlene A. Falleroni
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Abstract
An organoalkoxysilane/alumina sol-gel composition and method for its production are disclosed whereby an aluminum alkoxide is hydrolyzed in water to form a sol, to which is added a hydrolyzable organoalkoxysilane of the general formula R.sub.x Si(OR').sub.4-x wherein R is an organic radical, R' is a low molecular weight alkyl radical, and x is at least 1 and less than 4. The composition is dried and cured to form an organosiloxane/alumina monolith or coating on a substrate.
Claims20
A composition of matter comprising the polymerization reaction product of the hydrolyzate of an aluminum alkoxide and an organoalkoxysilane of the general formula
- R.sub.x Si(OR').sub.4-x
- wherein R is an organic radical, R' is a low molecular weight alkyl radical and x is at least one and less than 4.
A method of making an organoalkoxysilane/alumina composition comprising the steps of:
- a. hydrolyzing an aluminum alkoxide;
- and
- b. adding to said hydrolyzate an organoalkoxysilane of the general formula
- R.sub.x Si(OR').sub.4-x
- wherein R is an organic radical, R' is a low molecular weight alkyl radical, and x is at least 1 and less than 4.
Dependencies are inferred from the claim text.