Title:
CHEMICAL AGENT FOR FORMING SOLID LUBRICATION COATING, CHEMICAL AGENT PRODUCTION METHOD, CHEMICAL AGENT APPLICATION METHOD, OIL WELL PIPE, AND OIL WELL PIPE SCREW JOINT
Document Type and Number:
WIPO Patent Application WO/2024/043131
Kind Code:
A1
Abstract:
The present invention provides a chemical agent which is environmentally friendly and a solid lubrication coating. Provided is a chemical agent for forming a solid lubrication coating on a metal surface. The main components are a solid lubricant, a binder resin, and a solvent. The solvent has water as the main component thereof, and a lower alcohol with a carbon number of three or less is added as an additive to the water. The volume of the additive is 0.5-45 with respect to a volume of 100 of the water in the solvent. Not less than 95% of the volume of the solvent is constituted by water and the additive. At least a metal soap is contained as the solid lubricant. The metal soap component is not less than 95% of the total combined weight of the metal soap and an alkali soap component. The particle size of the metal soap does not exceed the film thickness of the solid lubrication coating. The binder resin is constituted by a water-soluble or water-dispersible polymer and a copolymer. The binder resin contains a copolymer and a polymer having an acrylate or methacrylate structure in an amount of not less than 90% of the total weight of the binder resin.
Inventors:
ISHIGURO YASUHIDE (JP)
GOTO SEIGO (JP)
KOGA TAKASHI (JP)
KAWAI TAKAMASA (JP)
OZAKI SEIJI (JP)
SATO HIDEO (JP)
FUJIMOTO SACHIKO (JP)
TAKANO JUN (JP)
OKUBO AKIRA (JP)
SHODA KOICHI (JP)
KOBAYASHI RYOTA (JP)
KUBO RYOTA (JP)
TOYOSAWA KOTA (JP)
GOTO SEIGO (JP)
KOGA TAKASHI (JP)
KAWAI TAKAMASA (JP)
OZAKI SEIJI (JP)
SATO HIDEO (JP)
FUJIMOTO SACHIKO (JP)
TAKANO JUN (JP)
OKUBO AKIRA (JP)
SHODA KOICHI (JP)
KOBAYASHI RYOTA (JP)
KUBO RYOTA (JP)
TOYOSAWA KOTA (JP)
Application Number:
PCT/JP2023/029433
Publication Date:
February 29, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
TOYO DRILUBE CO LTD (JP)
TOYO DRILUBE CO LTD (JP)
International Classes:
C09D133/00; C09D5/02; C09D7/40; C09D7/63; C10M129/26; C10M129/40; C10M129/44; F16L15/04; C10N10/02; C10N10/04; C10N20/06; C10N30/06; C10N40/00; C10N50/02
Domestic Patent References:
| WO2009072486A1 | 2009-06-11 |
Foreign References:
| JPS6284193A | 1987-04-17 | |||
| JPH08300087A | 1996-11-19 | |||
| JP2008537062A | 2008-09-11 | |||
| JP2004053013A | 2004-02-19 | |||
| JP2002257270A | 2002-09-11 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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