Patent ID: 8080298
Filing Date: 2011-12-20
Classification: F16L,Y10T

Abstract:
1. A refrigerant hose having an inner layer comprising a gas barrier layer and a rubber layer adhered to an outer surface of the gas barrier layer, wherein the gas barrier layer comprises a modified polyamide prepared by blending a polyamide and a carboxyl group-containing modified polyolefin; the rubber layer comprises a rubber composition comprising raw rubber, alkylphenol formaldehyde resin in an amount of from 1 to 15 parts by weight based on 100 parts by weight of the raw rubber, and carbon black in an amount of from 30 to 80 parts by weight based on 100 parts by weight of the raw rubber; wherein, based on 100 parts by weight of the raw rubber, the raw rubber comprises 5 to 40 parts by weight of a brominated product of a copolymer rubber of an isomonoolefin and a p-alkyl styrene (BIMS, 80 to 20 parts by weight of an ethylene-propylene-diene terpolymer (EPDM), and 15 to 40 parts by weight of a copolymer rubber selected from the group consisting of a butyl rubber, halogenated butyl rubber, and blends thereof; wherein the carbon black has a value of N