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1. (WO2017033693) METHOD FOR PRODUCING MODIFIED POLYMER, MODIFIED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE

Pub. No.:    WO/2017/033693    International Application No.:    PCT/JP2016/072815
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Aug 04 01:59:59 CEST 2016
IPC: C08C 19/22
B60C 1/00
C08L 15/00
Applicants: THE YOKOHAMA RUBBER CO., LTD.
横浜ゴム株式会社
Inventors: TAKAHASHI Ryota
高橋 亮太
ZHANG Di
張 迪
OKAMATSU Takahiro
岡松 隆裕
Title: METHOD FOR PRODUCING MODIFIED POLYMER, MODIFIED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
Abstract:
The objective of the present invention is to provide: a method for producing a modified polymer which is capable of reducing the heat generation of a tire; a modified polymer which is obtained by this production method; a rubber composition which contains this modified polymer; and a pneumatic tire which uses this rubber composition. A method for producing a modified polymer according to the present invention is a production method of a modified polymer which is obtained by modifying a conjugated diene polymer (A) with a nitrone compound (B) having a carboxy group. In this method for producing a modified polymer, the nitrone compound (B) is in the form of particles that have an average length in the long side direction of 50 μm or less.