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. 22, 2022
Filed:
May. 08, 2018
Applicant:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Inventors:
Yu Shinke, Hiratsuka, JP;
Kazuya Uenishi, Hiratsuka, JP;
Assignee:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 19/25 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C08K 11/00 (2006.01);
U.S. Cl.
CPC ...
C08C 19/25 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 11/005 (2013.01); C08K 2201/006 (2013.01);
Abstract
The present invention provides a compounding agent which, when used in a rubber composition containing a reinforcing filler, exhibits excellent dispersibility, workability, toughness, low heat build-up, and wear resistance; and a rubber composition containing the compounding agent. A modified butadiene polymer of the present invention has a functional group containing a nitrogen atom and silicon atom at a terminal, a weight average molecular weight of the modified butadiene polymer being from 1000 to 15000, and a molecular weight distribution of the modified butadiene polymer being 2.0 or less.