| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered olefin pipe which has a sufficient dew condensation-preventing function, can be manufactured easily, and does not necessitate large-sizing of a diameter of a pipe line. SOLUTION: The multilayered olefin pipe has a hygroscopic polymer layer 3 formed on the outer circumferential surface of a polyolefin-made pipe body 2. The hygroscopic polymer layer 3 includes a sodium polyacrylate-containing material, and an EVA-containing primer layer may exist between the pipe body 2 and the hygroscopic polymer layer 3. COPYRIGHT: (C)2010,JPO&INPIT
|
