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:
Jul. 21, 1992
Filed:
Jun. 28, 1990
Applicant:
Inventors:
Tadashi Saito, Tokyo, JP;
Joji Yatsunami, Tokyo, JP;
Ichiro Wada, Kodaira, JP;
Toshiki Takizawa, Kodaira, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524252 ; 524484 ; 524485 ; 524486 ; 5253323 ; 5253594 ;
Abstract
A tread rubber composition for high-speed running tires comprises a particular halogenated modified styrene-butadiene copolymer having p-halomethylbenzoyl group as a starting rubber and contains particular amounts of carbon black, process oil and diamine, and has excellent heat resistance and wear resistance.