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. 04, 2006
Filed:
Aug. 05, 2002
Applicants:
Uwe Schachtely, Princeton, NY (US);
Christian Panz, Wesseling, DE;
Ralf Schmoll, Bonn, DE;
Inventors:
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/021 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.