| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multilayered direct blow-molded body showing superiority in a barrier property to a liquid fuel containing alcohols and ethers and strength, and to provide a vessel for a fuel composed of the same. <P>SOLUTION: In the multilayered direct blow-molded body having a polyethylene-based resin layer (II) inside a polyamide layer (I), the polyamide layer (I) contains a meta-xylylene group-possessing polyamide (A1) and an aliphatic polyamide (A2). The content of the polyamide (A1) is 10 to 45 mass%, and the content of the polyamide (A2) is 90 to 55 mass%, the sum of the contents of the polyamides (A1) and (A2) being 100 mass%. The polyamide (A1) is composed of a diamine unit containing not less than 70 mol% of a meta-xylylenediamine unit, and a dicarboxylic acid unit containing not less than 70 mol%, based on the sum, of two kinds of dicarboxylic acid units of anα,ω-4 to 20C linear aliphatic dicarboxylic acid unit and an isophthalic acid unit, the ratio of theα,ω-4 to 20C linear aliphatic dicarboxylic acid unit to the isophthalic acid unit being 30:70 to 95:5. The aliphatic polyamide (A2) is at least one selected from the group consisting of nylon 6, nylon 666, nylon 610 and nylon 612. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
