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:
Apr. 24, 2018
Filed:
Jul. 18, 2013
Jsr Corporation, Minato-ku, JP;
Takahiro Kawai, Minato-ku, JP;
Hiroyuki Morita, Minato-ku, JP;
Takeshi Yuasa, Minato-ku, JP;
Koichiro Tani, Minato-ku, JP;
Koji Okada, Minato-ku, JP;
Ryoji Tanaka, Minato-ku, JP;
Masahiro Shibata, Minato-ku, JP;
Shigeru Abe, Minato-ku, JP;
JSR CORPORATION, Minato-ku, JP;
Abstract
A modified conjugated diene-based polymer is produced that is a modified product of a conjugated diene-based polymer obtained by polymerizing a conjugated diene compound, or polymerizing a conjugated diene compound and an aromatic vinyl compound, in the presence of an alkali metal compound or an alkaline-earth metal compound. The modified conjugated diene-based polymer is produced by a production method that includes a main chain modification step that reacts at least either an unsaturated bond or a functional group that is included in a terminal-modified polymer and is not situated at a terminal of the terminal-modified polymer, with a specific compound that includes a functional group that interacts with silica, the terminal-modified polymer being obtained by introducing a functional group that interacts with silica into at least one terminal of the conjugated diene-based polymer.