| 摘要 |
PROBLEM TO BE SOLVED: To improve a compressive recovery, a compressive load, a low temperature shock resistance, and a bending load resistance, and suitably use a polyethylene flexible pipe as such as a protecting pipe for a wire pipe and a communication cable a sheath pipe for a feed water/feed hot water pipe and the like. SOLUTION: In a flexible pipe in which polyethylene is used as a raw material, the polyethylene of a main raw material consists of a high density polyethylene 90 to 99 weight part whose density is 0.950 to 0.965g/cm<3> , and a low density polyethylene 10 to 1 weight part whose density is 0.840 to 0.910g/cm<3> such as a copolymer in which ethylene andα-olefin are folded serving metallocene as a catalyst.
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