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:
Jan. 10, 2023
Filed:
Dec. 29, 2020
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Kensuke Washizu, Hyogo, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Abstract
Provided are copolymers which provide improved overall performance in terms of fuel economy and wet grip performance, as well as rubber compositions and tires containing the copolymers. Included is a copolymer obtained by copolymerizing an aromatic vinyl compound, a conjugated diene compound, and a compound represented by the formula (1) below or by copolymerizing a conjugated diene compound and a compound represented by the formula (1) below, the copolymer having a weight average molecular weight of 1.0×10to 2.5×10, wherein Rand Rmay be the same or different and each represents a functional group containing at least two selected from the group consisting of carbon, hydrogen, and silicon, and Rand Rmay be joined together to form a ring structure.