Title:
ELECTRO-DEPOSITION COATING COMPOSITION INCLUDING REDOX SUBSTANCE, METHOD FOR MANUFACTURING SAME, AND ELECTRO-DEPOSITION COATING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/039075
Kind Code:
A1
Abstract:
The present invention relates to an electro-deposition coating composition, a manufacturing method therefor, and an electro-deposition coating method using same, wherein the electro-deposition coating composition has a redox substance incorporated thereinto to suppress bubble formation caused by electrolysis of the solvent during electro-deposition coating and to increase the coating thickness. The present invention provides an electro-deposition coating composition containing a redox material. As an electro-deposition coating colloidal dispersion, the electro-deposition coating composition includes an ionic polymer salt, a solvent, and a redox substance with a lower redox potential than the solvent and ensures that the redox reactions of the redox substance are more predominant than the electrolysis reactions of the solvent when a voltage is applied. By being introduced into the composition, the redox substance with a lower redox potential than the solvent supplies hydrogen ions or electrons and competes with the solvent's electrolysis during the electro-deposition coating process, thereby suppressing the generation of hydrogen and oxygen gases. As a result, the composition minimizes defects caused by bubbles in the coating layer by suppressing bubble generation attributed to the electrolysis of the solvent during electro-deposition coating and thus exhibits the effect of increasing the thickness of the coating layer through higher voltage application or extended voltage time.
Inventors:
LEE DAE HO (KR)
HAN JIN A (KR)
JO MOON JUNG (KR)
HAN SE WON (KR)
HAN JIN A (KR)
JO MOON JUNG (KR)
HAN SE WON (KR)
Application Number:
PCT/KR2023/009971
Publication Date:
February 22, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
KERI KOREA ELECTROTECHNOLOGY RES INST (KR)
International Classes:
C09D5/44; C08K5/08; C09D7/63; C09D179/08; C25D13/04
Foreign References:
| KR20180044128A | 2018-05-02 | |||
| GB1033953A | 1966-06-22 | |||
| CN103981560A | 2014-08-13 | |||
| JP2007508587A | 2007-04-05 |
Other References:
SHABANI-NOOSHABADI MEHDI, GHOREISHI SAYED MEHDI, JAFARI YASER, KASHANIZADEH NASER: "Electrodeposition of polyaniline-montmorrilonite nanocomposite coatings on 316L stainless steel for corrosion prevention", JOURNAL OF POLYMER RESEARCH, SPRINGER NETHERLANDS, DORDRECHT, vol. 21, no. 4, 30 March 2014 (2014-03-30), Dordrecht, pages 416, XP093139646, ISSN: 1022-9760, DOI: 10.1007/s10965-014-0416-5
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT & LAW FIRM (KR)
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