RESIN COMPOSITION FOR TUBES AND TUBE

摘要

Disclosed is a resin composition for tube which offers an excellent balance among wear resistance, flexibility, gas permeation resistance and low repulsion (elasticity). The resin composition for tube comprises: (A) an isobutylene block copolymer comprising (a) a polymer block primarily composed of isobutylene and (b) polymer block primarily composed of a monomer component which is different from the isobutyene; and (B) a thermoplastic polyurethane resin (B).