Title:
SURFACE TREATED STEEL SHEET FOR ORGANIC RESIN COATING AND MANUFACTURING METHOD THEREOF; ORGANIC RESIN COATED STEEL SHEET AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/075235
Kind Code:
A1
Abstract:
This manufacturing method of a surface treated steel sheet for organic resin coating is characterized by coating the surface of a galvanized steel sheet with a surface treatment liquid and drying to form a surface treatment film with an adhesion amount per single side of 0.005-0.18 g/m2, wherein the surface treatment liquid has a pH of 4-5 and contains, in a specific ratio, a resin composition with a specific bisphenol skeleton, a cationic urethane resin emulsion, a silane coupling agent having a specific reactive functional group, an organic titanium chelate compound, a tetravalent vanadium compound, a molybdate compound, a fluorine compound and water.
Inventors:
OKAI KAZUHISA (JP)
KANEKO RIE (JP)
ENDO REONA (JP)
IKEDA FUYUKO (JP)
KANEKO RIE (JP)
ENDO REONA (JP)
IKEDA FUYUKO (JP)
Application Number:
PCT/JP2021/036533
Publication Date:
April 14, 2022
Filing Date:
October 01, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C28/00; B32B15/082; B32B15/085; B32B15/09; B32B15/095; C23C22/44
Domestic Patent References:
| WO2011052520A1 | 2011-05-05 |
Foreign References:
| JP2012072476A | 2012-04-12 | |||
| JP2008291350A | 2008-12-04 | |||
| JP2012067369A | 2012-04-05 |
Other References:
See also references of EP 4209616A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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