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.

Date of Patent:
Jan. 13, 2026

Filed:

Mar. 30, 2023
Applicant:

Toyo Tire Corporation, Itami, JP;

Inventor:

Yasuhiro Hishikawa, Itami, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08K 3/36 (2006.01); C08K 5/548 (2006.01); C08L 25/08 (2006.01);
U.S. Cl.
CPC ...
B60C 1/0016 (2013.01); C08K 3/36 (2013.01); C08K 5/548 (2013.01); C08L 9/06 (2013.01); C08L 25/08 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01);
Abstract

A rubber composition for a tire tread is disclosed, which provides a tire excellent in wet grip performance at low temperatures and wet grip performance at high temperatures. The rubber composition for a tire tread includes, per 100 parts by mass of diene-based rubbers including (a) 30 to 50 parts by mass of a styrene butadiene rubber having a glass transition point of −35° C. or more, (b) 20 to 40 parts by mass of a styrene butadiene rubber having a glass transition point of −45° C. or more and less than −35° C., and (c) 10 to 30 parts by mass of a styrene butadiene rubber having a glass transition point of −65° C. or more and less than −45° C.: 80 to 140 parts by mass of silica; and 15 to 50 parts by mass of a thermoplastic resin having a softening point of 40° C. or more.


Find Patent Forward Citations

Hishikawa, Yasuhiro. (2026). Rubber composition for tire tread and pneumatic tire using the same (U.S. Patent No. 12522021). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12522021

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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