发明名称 |
PVC tube provided with a friction-reducing layer, method for the production thereof and use |
摘要 |
<p>PVC tube having a friction-reducing layer applied to the inside. This friction-reducing layer consists of a material that can be applied with co-extrusion such that it bonds directly to the PVC material that is likewise extruded. Such a friction-reducing layer preferably comprises an ethylene acrylate copolymer. It is also possible to use a plastic that in itself does not bond to PVC for such a friction-reducing layer. The desired bonding characteristics can, however, be obtained by mixing such a plastic before extrusion with a plastic that bonds to PVC. Preferably, a friction-reducing lubricant, such as silicone oil, is incorporated in the plastic. The invention relates in particular to an electrical conduit.</p> |
申请公布号 |
EP1748241(A1) |
申请公布日期 |
2007.01.31 |
申请号 |
EP20050106841 |
申请日期 |
2005.07.26 |
申请人 |
PIPELIFE NEDERLAND B.V. |
发明人 |
DE BOER, JAN;HARMS, HANS-JUERGEN |
分类号 |
F16L9/133;B32B1/08;B32B27/30 |
主分类号 |
F16L9/133 |
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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