基本信息:
- 专利标题: PIPE PREFORMED LINER COMPRISING METAL POWDER
- 专利标题(中):管子预先包括金属粉末的衬里
- 申请号:PCT/US2006/048659 申请日:2006-12-20
- 公开(公告)号:WO2007075820A1 公开(公告)日:2007-07-05
- 发明人: LAHIJANI, Jacob
- 申请人: E. I. DU PONT DE NEMOURS AND COMPANY , LAHIJANI, Jacob
- 申请人地址: 1007 Market Street, Wilmington, Delaware 19898 US
- 专利权人: E. I. DU PONT DE NEMOURS AND COMPANY,LAHIJANI, Jacob
- 当前专利权人: E. I. DU PONT DE NEMOURS AND COMPANY,LAHIJANI, Jacob
- 当前专利权人地址: 1007 Market Street, Wilmington, Delaware 19898 US
- 代理机构: FAIR, Tamera, L.
- 优先权: US60/751,815 20051220
- 主分类号: B29C63/00
- IPC分类号: B29C63/00 ; F16L58/10
摘要:
The present invention relates to a preformed liner of tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer adhered to the surface of a pipe, and in particular, an oil well pipe, without the need for either a primer layer or an adhesive. The liner comprises an effective amount of metal powder which provides adhesion between the liner and the surface of the pipe. The present invention also relates to a process for making such pipe, where in a preferred embodiment, the liner is co-extruded to form an inner layer and an outer layer. This co-extrusion embodiment is particularly useful in applications where high purity is necessary. In this case, the inner layer comprises an effective amount of metal powder and the outer layer is pure tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer.
摘要(中):
本发明涉及一种四氟乙烯/全氟(烷基乙烯基醚)共聚物的预成型衬垫,其粘附于管表面,特别是油井管,而不需要底漆层或粘合剂。 衬垫包括有效量的金属粉末,其提供衬套和管表面之间的粘合。 本发明还涉及一种用于制造这种管的方法,其中在优选的实施方案中,衬套被共挤出以形成内层和外层。 该共挤出实施方案在需要高纯度的应用中特别有用。 在这种情况下,内层包含有效量的金属粉末,外层为纯四氟乙烯/全氟(烷基乙烯基醚)共聚物。
IPC结构图谱:
B | 作业;运输 |
--B29 | 塑料的加工;一般处于塑性状态物质的加工 |
----B29C | 塑料的成型或连接;塑性状态物质的一般成型;已成型产品的后处理,如修整 |
------B29C63/00 | 镶衬或加护套,即应用预制的薄层或塑料护套;所用的设备 |