MODIFIED HYDROGENATED COPOLYMER

摘要

A modified hydrogenated copolymer composed of a hydrogenated copolymer which is produced by hydrogenating a nonhydrogenated copolymer comprising conjugated diene monomer units and aromatic vinyl monomer units and contains at least one polymer block (H) consisting of aromatic vinyl monomer units and a group which is derived from a modifier having a functional group and bonded to the hydrogenated copolymer, characterized in that: (1) the content of the aromatic vinyl monomer units exceeds 60 wt% and is below 90 wt% based on the weight of the hydrogenated copolymer, (2) the content of the polymer block (H) is 0.1 to 40 wt% based on the weight of the nonhydrogenated copolymer, (3) the weight-average molecular weight exceeds 100,000 and is up to 1,000,000, and (4) the degree of hydrogenation of double bonds of the conjugated diene units is 70 % or above.