Title:
COMPOSITION AND THREADED JOINT FOR PIPES PROVIDED WITH LUBRICATING COATING FILM LAYER THAT IS FORMED FROM SAID COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/074097
Kind Code:
A1
Abstract:
Provided are: a composition; and a threaded joint (1) for pipes, which is provided with a lubricating coating film layer (21) that is formed from the composition. A composition according to one embodiment of the present invention is used for the purpose of forming a lubricating coating film layer (21) on a threaded joint (1) for pipes, and contains Cr2O3, a metal soap, a wax and a basic aromatic organic acid metal salt. A threaded joint (1) for pipes according to one embodiment of the present invention is provided with a pin (5) and a box (8). Each of the pin (5) and the box (8) has a threaded part (4, 7) and a contact surface that has a non-threaded metal contact part. The threaded joint (1) for pipes is provided with a lubricating coating film layer (21), which is formed from the above-described composition, on the contact surface of at least one of the pin (5) and the box (8); and the lubricating coating film layer (21) functions as the outermost layer.
Inventors:
GOTO KUNIO (JP)
Application Number:
PCT/JP2018/038095
Publication Date:
April 18, 2019
Filing Date:
October 12, 2018
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
VALLOUREC OIL & GAS FRANCE (FR)
VALLOUREC OIL & GAS FRANCE (FR)
International Classes:
C10M169/06; C10M115/04; C10M115/10; C10M117/08; C10M125/10; C10M129/40; C10M159/06; C10N10/12; C10N30/00; C10N30/06; C10N40/00; C23C26/00; C23C28/00; F16L15/04
Domestic Patent References:
| WO2009057754A1 | 2009-05-07 | |||
| WO2014024755A1 | 2014-02-13 | |||
| WO2009057754A1 | 2009-05-07 | |||
| WO2014024755A1 | 2014-02-13 |
Foreign References:
| JP2005299693A | 2005-10-27 | |||
| JP2017115135A | 2017-06-29 | |||
| JPS5310809U | 1978-01-30 |
Other References:
See also references of EP 3696256A4
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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