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. 24, 2020
Filed:
Mar. 13, 2019
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Yuka Yokoyama, Hyogo, JP;
Suguru Izumo, Hyogo, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Abstract
Provided is a rubber composition for tires that provides a balanced improvement of wet grip, abrasion resistance, handling stability, and fuel economy during high-speed running, and further has less performance degradation after long-term service. Also provided is a tire including the rubber composition. Included is a rubber composition for tires containing, based on 100% by mass of a rubber component therein: 3-25% by mass of a component derived from an aromatic vinyl monomer; 0-15% by mass of a component derived from a butadiene monomer and having a vinyl configuration; 1-90% by mass of a component derived from a butadiene monomer and having a cis configuration; and 1-6% by mans of a component derived from an isoprene monomer and having a cis configuration, the rubber composition having, after vulcanization, physical properties satisfying the following relationships (1) and (2):−25° C.<Tg<0° C.  (1); and65<Hs<75  (2).