| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat-resistant water distribution piping having properties equivalent to water distribution piping made of a polyvinyl chloride without containing a polyvinyl chloride resin, having excellent strength, shock resistance, pressure resistance and heat resistance balance and usable for a long period of time without being damaged by the temperature difference between day and night and between summer and winter and the repeated circulation of cold water. SOLUTION: This heat-resistant water distribution piping is formed of a polyphenylene-ether resin composition including polyphenylene-ether resin and polystylene resin. The polystylene resin is at least one kind selected from a group of homopolystylene, high impact polystylene (impact-resistant polystylene) modified by a rubber component, and polystylene of syndiotactic structure.</p> |
