| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hose for a fuel cell having high flexibility, causing no deficiency such as buckling or breakage, and having high barrier property to hydrogen gas or water. <P>SOLUTION: The hose for the fuel cell is equipped with an inner layer 1 coming in contact with fluid, a barrier layer 2 arranged on the outside of the inner layer 1, and an outer layer 3 arranged on the outside of the barrier layer 2, and the inner layer 1 is made of the following A, the barrier layer 2 is made of the following B, and the outer layer is made of the following C, and the barrier layer 2 is formed by dispersing an island phase comprising modified polyolefin resin in a sea phase comprising ethylene-vinyl alcohol copolymer. A has the polyolefin resin and styrene-isobutylene block copolymer as the essential component. B has ethylene-vinyl alcohol copolymer and the modified polyolefin resin as the essential component, and the volume mixing ratio of ethylene-vinyl alcohol copolymer to the modified polyolefin resin is in a range of 95/5-30/70. C has polyamide resin as the essential component. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
