| 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 polyvinylidene difluoride (PVDF) polymer or a polyvinylidene difluoride copolymer; (b) an intermediate thermoplastic polyurethane (TPU) layer extruded in tubular form over the inner PVDF layer, and (c) a polyvinyl chloride polymer extruded in tubular form over the outside surface of the intermediate layer and being coextensive therewith. 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 | US9221206(B2) | 申请公布日期 | 2015.12.29 |
| 申请号 | US201414222777 | 申请日期 | 2014.03.24 |
| 申请人 | SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION | 发明人 | Garver Wayne Edward;Colton Mark Fisher |
| 分类号 | B29C47/00;B32B1/08;B32B27/08;B32B27/30;B32B27/40;F16L11/08;B29D23/00;B32B27/22;F16L11/04;F16L11/12;B32B27/18;F16L9/14;F16L9/147;B29C47/06;B29C47/26 | 主分类号 | B29C47/00 |
| 代理机构 | Norton Rose Fulbright US LLP | 代理人 | Norton Rose Fulbright US LLP ;Rothenberger Scott D. |
| 主权项 | 1. A method to prepare a flexible, see-through, coextruded, multilayer tubular article comprising extruding an inner layer of a polyvinylidene difluoride (PVDF) polymer or a polyvinylidene difluoride copolymer; extruding an intermediate thermoplastic polyurethane (TPU) layer coextruded in tubular form over the inner PVDF layer, and extruding a polyvinyl chloride polymer, coextruded in tubular form over the outside surface of the intermediate layer and being coextensive therewith, wherein the polyvinyl chloride polymer optionally contains a stabilizer or a plasticizer or mixtures thereof. | ||
| 地址 | Aurora OH US | ||