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:
Aug. 30, 2016
Filed:
Dec. 27, 2012
Zeon Corporation, Tokyo, JP;
Takeshi Sugimura, Tokyo, JP;
Kazuya Ito, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
A method of production of modified conjugated diene-based rubber comprising a steps of using, as a polymerization initiator, an alkali metalated aromatic compound which has three or more carbon atoms which are directly bonded to alkali metal atoms and aromatic rings in one molecule so as to polymerize a monomer which contains at least a conjugated diene compound and reacting a compound of the following general formula (I) with an active ends of the obtained polymer is provided. (In the general formula (I), any one of Rand Rto Ris an atom or reactive group which can react with the active ends of said polymer or a hydrocarbon group which includes either of the same, the remaining among Rand Rto Rand Rto Rare respectively independently a hydrogen atom, alkyl group, or aryl group, and 'j', 'k', “m”, and “n” are integers of 0 to 100.)