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:
Apr. 25, 1989
Filed:
Dec. 21, 1987
Applicant:
Inventor:
Mitsuo Sakurai, Hiratuska, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
524495 ; 525233 ; 525236 ; 525237 ; 524526 ;
Abstract
A rubber composition for use in pneumatic radial tires is disclosed which comprises specified amounts of polybutadiene rubber, natural rubber and/or polyisoprene rubber and carbonblack. The polybutadiene rubber has in the molecular chain at least one atomic group of the formula ##STR1## wherein R is OH or SH and the carbonblack has a selected iodine adsorption, whereby a radial tire is rendered highly resistant to flex, to crack growth and to external damage and extremely low in hysteresis loss and in rolling resistance.
Quick Actions:
Sakurai, Mitsuo. (1989). Rubber compositions for pneumatic radial tires (U.S. Patent No. 4824900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4824900
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile