| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a member for a piping system for a fuel cell, wherein intercepting action with respect to hydrocarbons, alcohols and hydrogen is improved, and each layer firmly adheres mutually. <P>SOLUTION: In the member for the piping system for the fuel cell, an innermost layer I, in contact with a conveyed medium, is made of a polyolefine compound. The material is bound to a layer II made of an EVOH compound. Here, the combination may also have a layer selected from (a) a layer III made of a polyamide compound, (b) a layer IV made of a molding material comprising functionalized polyolefine, and (c) a layer V comprising an unfunctionalized polyolefine molding material. The layer I and the layers II are coupled by having a contact surface of the layer I contain the polyolefine having a functional group selected from among an acid anhydride group, a carboxylic acid group, an N-acyl lactam group, an epoxy group and a trialkoxysilane group. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
