发明名称 |
SINGLELAYER AND MULTILAYER POLYOLEFIN FOAM PIPES |
摘要 |
Singlelayer and multilayer polyolefin foam pipes with improved compression resistance have a polyolefin foam layer which consists of mixtures of modified propylene polymers having strain hardening behaviour of propylene homopolymers with a stereospecivity index > 98% or propylene copolymers with a stereospecivity index of the homopolymer matrix of > 96%. The polyolefin foam pipes are coated steel pipes for transporting crude oil or gas products or district heating applications, singlelayer pipes for insulation purposes and for non- or low-pressure applications and multilayer plastic pipes for the transportation of hot or cold fluids. |
申请公布号 |
EP1301343(A1) |
申请公布日期 |
2003.04.16 |
申请号 |
EP20010965099 |
申请日期 |
2001.07.10 |
申请人 |
BOREALIS GMBH |
发明人 |
HESSE, ACHIM;LINDSTROEM, TONY;EK, CARL-GUSTAF;RYDIN, CECILIA |
分类号 |
B32B5/18;B32B15/08;B32B27/32;C08L23/12;C08L23/14;C08L51/06;C08L53/00;F16L9/12;F16L59/02;F16L59/14 |
主分类号 |
B32B5/18 |
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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