发明名称 |
MULTILAYER PLASTIC PIPE AND ITS USE |
摘要 |
The invention relates to a multilayer plastic pipe (1), preferably for use in heating systems. The multilayer pipe comprises an inner core (2) and a barrier layer (6) surrounding the core and preventing oxygen diffusion through the multilayered pipe. The core (2) is made of a material having viscoelastic properties, preferably cross-linked polyethylene, and the barrier layer (6) is surrounded by an outer layer (8) of a material having adhesive properties. The invention also relates to the use of a multilayer pipe for providing pipe couplings.
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申请公布号 |
WO9949254(A1) |
申请公布日期 |
1999.09.30 |
申请号 |
WO1999SE00429 |
申请日期 |
1999.03.18 |
申请人 |
WIRSBO BRUKS AB;JOHANSSON, BENGT;LUNDEQUIST, YNGVE;ASPLUND, RAUNO |
发明人 |
JOHANSSON, BENGT;LUNDEQUIST, YNGVE;ASPLUND, RAUNO |
分类号 |
F16L9/12;F16L33/01;(IPC1-7):F16L9/12 |
主分类号 |
F16L9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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