发明名称 |
Co-extruder multilayer plastic pipe, method for producing the same, and device therefor |
摘要 |
The invention relates to a co-extruded multilayer plastic pipe comprising an inner pipe and an outer pipe and between them a middle layer of a softer material than the inner pipe. The invention also relates to a method of producing a co-extruded multilayer pipe in a multilayer extruder, and an apparatus for producing the co-extruded multilayer pipe.
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申请公布号 |
US6176269(B1) |
申请公布日期 |
2001.01.23 |
申请号 |
US19980077350 |
申请日期 |
1998.09.04 |
申请人 |
UPONOR INNOVATION AB |
发明人 |
JAERVENKYLAE JYRI |
分类号 |
B29B15/12;B29C44/22;B29C47/00;B29C47/02;B29C47/06;B29C47/20;B29C47/24;B29C47/52;B29C47/76;B29C47/90;B29C53/58;B29C55/24;B29D23/00;B32B1/08;F16L9/12;F16L59/14;(IPC1-7):F16L9/147 |
主分类号 |
B29B15/12 |
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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