| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerant transportation hose excellent in flexibility, interlaminar bonding property, and low permeability, which does not cause foaming of a rubber layer. Ž<P>SOLUTION: The hose includes an innermost layer 1 made of material containing polyamide resin as a main component, a low-permeation layer 2 made of material containing polyvinyl alcohol as the main component and provided on the outer periphery of the innermost layer 1, and the rubber layer provided on the outer periphery of the low-permeation layer 2. The rubber layer contacting the outer periphery of the low-permeation layer 2 is a butyl rubber layer 3a composed of a rubber composition containing the following component (B) as well as the following component (A). (A) a butyl rubber. (B) a talc surface-treated by silane coupling agent. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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