The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2002
Filed:
Aug. 20, 1997
Applicant:
Inventors:
Fritz Schwertfeger, Frankfurt, DE;
Andreas Zimmermann, Griesheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 1/300 ; E04B 1/76 ;
U.S. Cl.
CPC ...
B01J 1/300 ; E04B 1/76 ;
Abstract
Process for preparation of hydrophilic or partially hydrophilic inorganic aerogels. The invention relates to a process for the preparation of hydrophilic or partially hydrophilic inorganic aerogels, which comprises pyrolyzing a hydrophobic inorganic aerogel in the presence of oxygen at temperatures in the range from 100 to 1000° C.