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:
Aug. 02, 1983
Filed:
Dec. 23, 1981
Applicant:
Inventors:
Tatsuo Fujimaki, Kodaira, JP;
Tomoharu Yamada, Higashimurayama, JP;
Seisuke Tomita, Higashimurayama, JP;
Assignee:
Bridgestone Tire Company Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525 99 ; 1522 / ; 525914 ; 525314 ;
Abstract
A rubber composition adapted to be used as a tread rubber is disclosed. The rubber composition has remarkably improved resistance against heat generation, breakage resistance, wear resistance, wet skid resistance and low-temperature brittleness, and consists mainly of a rubber blend consisting of 20-95 parts by weight of a styrene-butadiene block copolymer having a specifically limited structure and 80-5 parts by weight of a diene rubber.