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:
Nov. 08, 2005
Filed:
Feb. 12, 1998
Applicants:
Masayuki Kawazoe, Hiratsuka, JP;
Tetsuji Kawazura, Hiratsuka, JP;
Inventors:
Masayuki Kawazoe, Hiratsuka, JP;
Tetsuji Kawazura, Hiratsuka, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K003/34 ;
U.S. Cl.
CPC ...
Abstract
A process for production of a modified carbon black, at a cheaper cost, for rubber reinforcement having the superior tan δ temperature dependence of silica and an excellent abrasion resistance and further having no problems arising due to a low electrical conductivity is provided granulating the carbon black, after or while adding a water-dispersed silica to the carbon black in a granulator.