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Title:
SOLUTION COMPOSITION FOR SURFACE TREATMENT OF STEEL SHEET, STEEL SHEET SURFACE-TREATED USING SAME, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/121213
Kind Code:
A1
Abstract:
The present invention relates to: a solution composition capable of improving corrosion-resistance and blackening-resistance of a steel sheet; a steel sheet surface-treated using same; and a method for manufacturing the steel sheet.

Inventors:
CHOI CHANG-HOON (KR)
KIM JONG-KOOK (KR)
CHO SOO-HYOUN (KR)
SONG HO-CHEOL (KR)
Application Number:
PCT/KR2022/020821
Publication Date:
June 29, 2023
Filing Date:
December 20, 2022
Export Citation:
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Assignee:
POSCO CO LTD (KR)
UNICOH SPECIALTY CHEMICALS CO LTD (KR)
International Classes:
C23C22/06; C23C28/00
Foreign References:
KR20180135514A2018-12-21
KR20110083744A2011-07-20
CN111876782A2020-11-03
EP2138606A12009-12-30
KR20150111676A2015-10-06
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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