| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate resin tubular body for a hose inner tube, excellent in a gas barrier property (refrigerant permeability resistance), dynamic durability (vibration durability), flexibility, moisture-proofness (moisture permeability resistance) and water-proofness. SOLUTION: This laminate resin tubular body for the hose inner tube is laminated with a layer comprising a polyester-polyether copolymer, in an inner circumferential side and/or an outer circumferential side of a layer comprising an EVOH compound resin containing an ethylene-vinyl alcohol copolymer and an elastomer, via an adhesive layer. The laminate resin tubular body for the hose inner tube excellent in the gas barrier property, the moisture-proofness and the water-proofness is provided by laminating the layer comprising the polyester-polyether copolymer of high moisture-proofness and water-proofness, in the inner circumferential side and/or the outer circumferential side of the layer comprising the EVOH compound resin containing the ethylene-vinyl alcohol copolymer of excellent gas barrier property and the elastomer. COPYRIGHT: (C)2009,JPO&INPIT
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