| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin hose for hydraulic application wherein penetration of oil mist is remarkably suppressed, and durability is improved even under high temperature and high pressure environment. SOLUTION: The resin hose for hydraulic application consisting of an inner tube 1 made of resin; a reinforcing layer 2 adhered on the inner tube 1; and a covering 3 laminated on the reinforcing layer 2. The inner tube 1 is formed into two layers of an innermost layer 1A and an outer layer 1B, and the degree of crystallinity of resin, which forms the innermost layer 1A of the inner tube 1, is 25% or higher. For example, nylon resin can be suitably used for resin which forms the innermost layer 1A of the inner tube 1. COPYRIGHT: (C)2004,JPO
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