| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a supply/discharge water pipe decreasing generation of a wrinkle in a pipe surface, providing a small increase of in-pipe flow resistance, and consisting of a pipe of 3 mm or more thickness. SOLUTION: A supply/discharge water pipe is obtained, in a straight chain ethyleneα-olefin copolymer of over 0.915 to 0.930 g/cm<3> density, 0.05 to 2 g/10 min MFR, and 3 g or more melting tension at 190 deg.C, by molding an ethylene copolymer composition blending with phosphite and/or phosphonite by ratio of 1 wt.% or less. The pipe is a pipe decreasing generation of a wrinkle in a pipe surface, providing a small increase of in-pipe flow resistance, and having 3 mm or more thickness.</p> |
