发明名称 |
MULTI-LAYERED FUEL TUBING |
摘要 |
The invention describes a flexible tubular article for transport of volatile hydrocarbons comprising: (a) an inner layer of a thermoplastic polyurethane (TPU); (b) an intermediate polyvinylidene difluoride (PVDF) polymer or PVDF copolymer layer extruded in tubular form over the inner TPU layer, and (c) a TPU extruded in tubular form over the outside surface of the intermediate layer and being coextensive therewith. Optionally, a fourth outer layer is included and covers layer (c). The tubular articles of the invention have a maximum permeation rating of 15 g/m2/day under SAE J1737 test conditions. |
申请公布号 |
US2009272454(A1) |
申请公布日期 |
2009.11.05 |
申请号 |
US20090433115 |
申请日期 |
2009.04.30 |
申请人 |
GARVER WAYNE EDWARD;COLTON MARK FISHER |
发明人 |
GARVER WAYNE EDWARD;COLTON MARK FISHER |
分类号 |
F16L11/12;B29C47/06;F16L11/22 |
主分类号 |
F16L11/12 |
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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