发明授权
- 专利标题： CONDUITE TUBULAIRE FLEXIBLE A GAINE D'ETANCHEITE INTERNE POLYMERIQUE
- 专利标题（英）： Flexible tubular pipe with an internal impervious polymeric sheath
- 专利标题（中）： 随着高分子感密封层TUBE
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申请号： EP96907536.5申请日： 1996-03-15
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公开(公告)号： EP0817935B1公开(公告)日： 1999-01-20
- 发明人: HARDY, Jean
- 申请人： COFLEXIP
- 申请人地址： 23 Avenue de Neuilly 75116 Paris FR
- 专利权人： COFLEXIP
- 当前专利权人： COFLEXIP
- 当前专利权人地址： 23 Avenue de Neuilly 75116 Paris FR
- 代理机构： Levy, David
- 优先权： FR9503663 19950329
- 国际公布： WO9630687 19961003
- 主分类号： F16L11/08
- IPC分类号： F16L11/08 ; F16L11/12 ; F16L11/16
摘要：
A flexible tubular pipe with an internal impervious polymeric sheath, including at least, from the inside outwards, an internal pervious metal shell (1) with an outer surface having interstices (9), an internal impervious polymeric sheath (2), a set of armouring wire webs (3, 4) and an outer protective sheath (5). Said internal impervious polymeric sheath (2) mainly includes a portion made of a thermoplastic polymer combining at least two fluoromonomers of which at least one has at least one alkoxy function, and said portion made of a thermoplastic polymer is in the form of a continuous tubular layer having no incipient tears in the region of said interstices (9).
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