| 摘要 |
<p>PURPOSE:To provide a composite pipe composed of an inner layer made of silane graft denaturated polyolefin and an outer layer made of metal which is excellent in adhesivity and which does not crack or break even though hot water flows through the pipe for a long time. CONSTITUTION:Silane graft denaturated amorphous polyolefin obtained by mixing vinyltrimetoxi-silane and di-t-butyl oxide into amorphous polyolefin such as cyclic polyolefin, and by heating and melting thus obtained mixture, is extruded into a metal pipe so as to cover the inner surface of the metal pipe therewith, thereby it is possible to provide a composite pipe composed of an inner layer made of silane graft denaturated polyolefin and an outer layer made of metal.</p> |
