发明名称 METHOD OF FORMING A MULTI-LAYER PLASTIC PIPE FOR CONDUCTING FLUIDS, A MULTI-LAYER PLASTIC PIPE FORMED BY THE METHOD, AND A METHOD OF CONNECTING A MULTI-LAYER PLASTIC PIPE
摘要 A method of forming a multi-layer plastic pipe (4) for conducting fluids, a multi-layer plastic pipe formed by the method, and a method of connecting a multi-layer plastic pipe. According to the invention, a core pipe (2) is formed, whose properties correspond to the requirements set by the fluid to be conducted. With a suitable coating method an outer protective layer (3) is formed around the core pipe (2) of such a plastic material, which properties meet the requirements set by the prevailing environment and/or pipelaying procedure.
申请公布号 CA2112440(A1) 申请公布日期 1994.06.29
申请号 CA19932112440 申请日期 1993.12.24
申请人 UPONOR N.V. 发明人 JARVENKYLA, JYRI
分类号 B29C47/02;B29C47/06;B29C47/20;B29C65/00;B29C65/02;B29C65/34;B29C65/78;B29L9/00;B29L23/00;B32B1/08;B32B7/02;B32B27/08;F16L9/12 主分类号 B29C47/02
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