Invention Grant
- Patent Title: Threaded joint for pipes
- Patent Title (中): 螺纹接头用于管道
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Application No.: US12793867Application Date: 2010-06-04
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Publication No.: US09321982B2Publication Date: 2016-04-26
- Inventor: Kunio Goto , Takayuki Kamimura , Masaru Takahashi , Keishi Matsumoto , Michihiko Iwamoto , Ryuichi Imai , Stéphanie Raï
- Applicant: Kunio Goto , Takayuki Kamimura , Masaru Takahashi , Keishi Matsumoto , Michihiko Iwamoto , Ryuichi Imai , Stéphanie Raï
- Applicant Address: JP Tokyo FR Aulnoye-Aymeries
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION,VALLOUREC MANNESMANN OIL & GAS FRANCE
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION,VALLOUREC MANNESMANN OIL & GAS FRANCE
- Current Assignee Address: JP Tokyo FR Aulnoye-Aymeries
- Agency: Clark & Brody
- Priority: JP2007-313378 20071204; JP2008-268817 20081017
- Main IPC: F16L25/00
- IPC: F16L25/00 ; B05D1/02 ; C10M169/04 ; C09D5/08 ; C09D7/12 ; F16L15/00 ; F16L58/18 ; E21B17/08 ; C08K5/098

Abstract:
In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact surface of the box has a solid lubricating coating having plastic or viscoplastic rheological behavior which is preferably formed by the hot melt technique from a composition comprising a thermoplastic polymer, a wax, a metal soap, a corrosion inhibitor, a water-insoluble liquid resin, and a solid lubricant.
Public/Granted literature
- US20100301600A1 THREADED JOINT FOR PIPES Public/Granted day:2010-12-02
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