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. 24, 1984
Filed:
Jun. 15, 1982
Applicant:
Inventors:
Assignee:
The Toyo Rubber Industry Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ; B60C / ; C08L / ;
U.S. Cl.
CPC ...
1522 / ; 152360 ; 152374 ; 526340 ; 525 99 ; 525250 ;
Abstract
An automotive tire tread having a low rolling resistance including a cap tread rubber and a base tread rubber wherein the value of the loss tangent of the cap tread rubber is not more than 0.24 and the value of the resilience of the cap tread rubber is more than 60%. In addition, the value of the loss tangent of the base tread rubber should be less than that of the cap tread rubber.