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:
Dec. 18, 1979
Filed:
Jan. 16, 1979
Applicant:
Inventors:
Eberhard Kilian, Hanau, DE;
Alfons Kreher, Frankfurt, DE;
Peter Nauroth, Wesseling, DE;
Gunter Turk, Hanau, DE;
Assignee:
Deutsche Gold-und Silber-Scheideanstalt vormals Rosseler, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
260 4237 ; 1063 / ; 1063 / ; 260 4214 ; 423339 ;
Abstract
Free flowing, finely divided precipitated silicic acid granules of reduced dust content and reduced abrasion are obtained by a process including the step of subjecting a silicic acid suspension to intensive shearing action. Rubber compositions containing the precipitated silica produced in this way are also disclosed.