Patent ID: 9206264
Filing Date: 2015-12-08
Classification: C08C,C08K,C08L

Abstract:
1. A method for producing a modified conjugated diene based (co)polymer, the method comprising reacting a conjugated diene based (co)polymer with a metal halide compound to obtain a modified conjugated diene based (co)polymer, wherein the conjugated diene based (co)polymer has a weight-average molecular weight of 150,000 to 2,000,000, and is obtained by a process comprising bonding, to a polymer having at least a conjugated diene unit, an alkoxysilyl group and an [optionally] protected primary amino group, where the polymer is obtained by polymerization with an initiator comprising an organic lithium, the conjugated diene based (co)polymer is reacted with the metal halide compound of such an amount that the total mols of the halogen atom becomes 1 to 10 times the total mols of the [optionally] protected primary amino group possessed by the conjugated diene based (co)polymer, to obtain the modified conjugated diene based (co)polymer, and a ratio of the total mols of chlorine atoms of the metal halogen compound is 2.1 times or more of the total mols of the organic group contained in the organic lithium.