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:
May. 10, 1983
Filed:
Sep. 16, 1981
Applicant:
Inventors:
Tatsuo Fujimaki, Kodaira, JP;
Shinsuke Yamaguchi, Mizuho, JP;
Tomoharu Yamada, Higashimurayama, JP;
Seisuke Tomita, Higashimurayama, JP;
Assignee:
Bridgestone Tire Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525196 ; 525237 ; 525192 ;
Abstract
A rubber composition for tire having low rolling resistance and high wet skid resistance, breakage strength and wear resistance consists mainly of a rubber component containing at least 20 parts by weight of a high vinyl butadiene-styrene copolymer rubber obtained by copolymerizing randomly styrene with 1,3-butadiene, and containing 3-30% by weight of bonded styrene and 60-95% by weight of 1,2-bond in butadiene unit, and further containing metal-butadienyl bonds in its main chain in a weight fraction of at least 20% by weight.