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Patent Searching and Data


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 (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2018/038095
Publication Date:
April 18, 2019
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
VALLOUREC OIL AND GAS FRANCE (54 rue Anatole France, AULNOYE-AYMERIES, 59620, 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:
WO2009057754A12009-05-07
WO2014024755A12014-02-13
Foreign References:
JP2005299693A2005-10-27
JP2017115135A2017-06-29
JPS5310809U1978-01-30
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (5-17, Dojima 1-chome Kita-ku, Osaka-sh, Osaka 03, 〒5300003, JP)
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