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:
Dec. 20, 2022
Filed:
Sep. 28, 2018
Zeon Corporation, Tokyo, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Zs Elastomers Co., Ltd., Tokyo, JP;
Takuro Sakurai, Tokyo, JP;
Takashi Iizuka, Tokyo, JP;
Mana Fujii, Sodegaura, JP;
Hisakatsu Hama, Sodegaura, JP;
ZEON CORPORATION, Tokyo, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
ZS ELASTOMERS CO., LTD., Tokyo, JP;
Abstract
A conjugated diene-based rubber including a polymer block (A) containing isoprene monomer unit as the main component and a polymer block (B) containing 1,3-butadiene monomer unit as the main component, wherein at least one of the polymer block (A) and the polymer block (B) contains a unit of a vinyl compound having a functional group interactive with silica, the polymer block (A) has a weight average molecular weight (Mw) in the range of 1,000 to 30,000, and the entire conjugated diene-based rubber has a weight average molecular weight (Mw) in the range of 50,000 to 5,000,000.