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:
May. 07, 2019
Filed:
Jan. 29, 2016
Jsr Corporation, Minato-ku, JP;
Takumi Adachi, Minato-ku, JP;
Koichiro Tani, Minato-ku, JP;
Hiroyuki Morita, Minato-ku, JP;
Ryoji Tanaka, Minato-ku, JP;
JSR CORPORATION, Minato-ku, JP;
Abstract
A modified conjugated diene-based polymer is produced by reacting a conjugated diene-based polymer having an alkali metal or an alkali-earth metal at a terminal of the polymer with a compound represented by formula (1). Rand Rindependently represent a hydrocarbyl group having 20 or fewer carbon atoms. Rrepresents a substituted alkyl group having 20 or fewer carbon atoms prepared through substitution of at least one of a hydrogen atom and —CH— of an alkyl group by a group containing only at least one heteroatom selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, or a monovalent aromatic group having 20 or fewer carbon atoms and containing at least one element selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, with the proviso that Rdoes not have active hydrogen. Rrepresents an alkanediyl group having 20 or fewer carbon atoms. n is 1 or 2.