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:
Mar. 05, 2013
Filed:
May. 06, 2008
Applicants:
Juergen Meyer, Stockstadt, DE;
Mario Scholz, Gruendau, DE;
Inventors:
Juergen Meyer, Stockstadt, DE;
Mario Scholz, Gruendau, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/00 (2006.01); C01B 33/113 (2006.01); C01B 33/18 (2006.01); C08K 3/36 (2006.01); C08K 5/5419 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides structurally modified, pyrogenically prepared silicas obtained by reaction of pyrogenic silicas with cyclic polysiloxanes of the type —[O—Si(R)]—, where R is a C1 to C6 alkyl group and n is 3 to 9, and subsequent structural modification of the silanized silicas obtained. The invention further provides an adhesive comprising the structurally modified, pyrogenically prepared silicas.