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. 28, 1979
Filed:
Jun. 13, 1977
Applicant:
Inventors:
Noboru Kusakabe, Ohme, JP;
Nobumasa Ikeda, Kodaira, JP;
Assignee:
Bridgestone Tire Company Limited, Kyobashi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 1522 / ; 1523 / ; 1523 / ; 260 175 ; 260 4247 ;
Abstract
A rubber composition containing polyisoprene rubber or a blend of polyisoprene rubber and polybutadiene rubber has a high friction coefficient against the frozen road surface due to the easy deformability at low temperature and high affinity for water. A pneumatic tire comprising a tread consisting of the rubber composition is excellent in the brake, traction and cornering performances and can travel safely on frozen roads without the use of spikes or a chain.