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:
Feb. 14, 2017
Filed:
Feb. 19, 2014
Applicants:
Jürgen Meyer, Stockstadt, DE;
Mario Scholz, Gründau, DE;
Matthias Rochnia, Ortenberg-Bleichenbach, DE;
Inventors:
Jürgen Meyer, Stockstadt, DE;
Mario Scholz, Gründau, DE;
Matthias Rochnia, Ortenberg-Bleichenbach, DE;
Assignee:
EVONIK DEGUSSA GMBH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/12 (2006.01); B82Y 30/00 (2011.01); C01B 33/18 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
C01B 33/12 (2013.01); B82Y 30/00 (2013.01); C01B 33/183 (2013.01); C08K 3/36 (2013.01); C01P 2004/52 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); Y10T 428/268 (2015.01); Y10T 428/2982 (2015.01);
Abstract
Fumed silica having a BET surface area of 200±15 m2/g, a grindometer value of less than 30 μm and a median value by PCS of 65 to 85 nm is prepared by grinding a fumed silica having a surface area of 200±25 m2/g, and silicone rubber containing this silica.