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. 24, 2015
Filed:
Jan. 08, 2004
Applicants:
Hans-detlef Luginsland, Hoboken, NJ (US);
Andre Wehmeier, Huerth, DE;
Oleg Stenzel, Cologne, DE;
Stefan Uhrlandt, Belle Mead, NJ (US);
Inventors:
Hans-Detlef Luginsland, Hoboken, NJ (US);
Andre Wehmeier, Huerth, DE;
Oleg Stenzel, Cologne, DE;
Stefan Uhrlandt, Belle Mead, NJ (US);
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09C 3/12 (2006.01); B60C 1/00 (2006.01); C01B 33/193 (2006.01); C09C 1/30 (2006.01);
U.S. Cl.
CPC ...
B60C 1/0016 (2013.01); B60C 1/00 (2013.01); C01B 33/193 (2013.01); C01P 2006/12 (2013.01); C01P 2006/19 (2013.01); C01P 2006/40 (2013.01); C09C 1/30 (2013.01);
Abstract
The present invention relates to precipitated silicas which have extremely low microporosity and high rubber activity, to a process for their preparation, and to their use as filler for rubber mixtures.