Ormosil aerogels containing silicon bonded linear polymers
AssigneeAspen Aerogels, Inc.
InventorsDuan Li Ou, George L. Gould
Life of this patent
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Abstract
The invention provides reinforced aerogel monoliths as well as fiber reinforced composites thereof for a variety of uses. Compositions and methods of preparing the monoliths and composites are also provided.
Claims16
An organically modified silica (ormosil) aerogel composition, said composition comprising a linear polymer covalently bonded at one or both ends to the silica network through a C—Si bond between a carbon atom of the polymer and a silicon atom of the network, wherein the linear polymer is a polyether, polyoxyalkylene, polyoxypropylene, polyoxylpropylene-copolyoxyethylene or a combination thereof.
A gel composition leading to an ormosil aerogel structure comprising less than 30% linear polymer and with at least 10% transmittance or transparency in the visible spectrum per centimeter of composition, wherein the linear polymer is a polyether, polyoxyalkylene, polyoxypropylene, polyoxylpropylene-copolyoxyethylene or a combination thereof.
Dependencies are inferred from the claim text.