Patent ID: 6009910
Filing Date: 2000-01-04
Classification: F16L,Y10T

Abstract:
A refrigerant transporting hose comprising an inner tube and an outer tube around it with a reinforcing laver interposed, said inner tube being formed of a rubber composition based on an isobutylene.p-methylstyrene copolymer in which part or all of the p-methylstyrene units are brominated, wherein said isobutylene.p-methylstyrene copolymer is comprised of a copolymer having a recurring unit structure (A) that is derived from isobutylene and represented by the formula (a) set forth below, a recurring unit structure (B) that is derived from p-methylstyrene and represented by the formula (b) set forth below, and a recurring unit structure (C) that has the methyl group in the recurring unit (B) brominated and which is represented by the formula (c) set forth below: ##STR2##