Patent ID: 8535773

Claim:
A hose for transporting refrigerant comprising an inner tube layer including a gas barrier layer and a rubber layer adjacent to an outer surface of the gas barrier layer, wherein the rubber layer comprises a rubber composition comprising from 1 to 15 parts by mass of an alkylphenol-formaldehyde resin, from 1 to 8 parts by mass of a hydrotalcite and from 30 to 80 parts by mass of a carbon black having an N 2 SA that is greater than or equal to 75 m 2 /g and a DBP absorption number that is greater than or equal to 90 cm 3 /100 g per 100 parts by mass of a raw rubber; the raw rubber comprises at least one selected from the group consisting of a BIMS and a butyl rubber and/or a halogenated butyl rubber, which is a copolymer rubber; and the gas barrier layer comprises a polyamide resin composition comprising a modified polyamide obtained by blending a polyamide and a carboxyl group-containing modified polyolefin.