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1. (WO2018034195) MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION THEREOF, AND TIRE

Pub. No.:    WO/2018/034195    International Application No.:    PCT/JP2017/028654
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Tue Aug 08 01:59:59 CEST 2017
IPC: C08C 19/25
C08L 9/00
C08L 91/00
Applicants: ASAHI KASEI KABUSHIKI KAISHA
旭化成株式会社
Inventors: KYO, Miki
京 美紀
SEKIKAWA, Shinichi
関川 新一
Title: MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION THEREOF, AND TIRE
Abstract:
A modified conjugated diene polymer having a weight-average molecular weight of 20 × 104 to 300 × 104, said polymer having a star-type branched structure in which a conjugated diene polymer chain is bonded to a modifier residue. The modifier residue has at least four silicon atoms and an alkoxy group and/or a hydroxy group, the conjugated diene polymer chain is bonded to the silicon atoms, and in the modifier residue, the number of alkoxy groups and/or hydroxy groups is, on average, greater than the number of silicon atoms.