| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a hose for refrigerant transport that excels in refrigerant permeation resistance and flexibility, requires no application of adhesive to a nipple in a crimping operation and poses no limits to lubricating oil for a compressor, despite of no barrier layers of synthetic resin such as polyamide. SOLUTION: The hose for refrigerant transport comprises a succeeding lamination of, from the inner layer side, at least an inner tube rubber layer, a reinforcing layer and a sheathing rubber layer. The inner tube rubber layer has an at least two-layered laminated structure having different rubber polymers as base materials. The innermost layer has an oil-resistant rubber polymer as the base material, and the other layers have a refrigerant permeation-resistant rubber polymer as the base material.
|
