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:
Nov. 19, 1996
Filed:
Mar. 28, 1994
Applicant:
Inventors:
Tadashi Shibata, Tokyo, JP;
Ryota Fujio, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
524495 ; 524526 ; 525250 ; 5253319 ; 5253327 ; 5253333 ;
Abstract
A rubber composition having good physical properties such as breaking properties, wear strength and grip properties, and good processability at the same time is suitable for a high performance tire. A nitrogen containing polymer with a weight average molecular weight of 70.times.10.sup.4 to 250.times.10.sup.4 is compounded with 60 to 200 phr of carbon black, a softener comprising 30 to 250 phr of a process oil and/or 5 to 100 phr of liquid polymer, and not more than 60 parts of another polymer.