Surface Treatment Composition For Ternary Hot Dip Galvanized Steel

Surface Treatment Composition For Ternary Hot Dip Galvanized Steel Sheet, Surface Treated Ternary Hot Dip Galvanized Steel Sheet Using Same And Preparation Method Thereof

Abstract: The objective of the present invention is to provide a surface treatment composition capable of imparting excellent corrosive resistance, blackening resistance, alkali resistance, and an intrinsic surface color property on a ternary hot dip galvanized steel sheet. The present invention provides a surface treatment composition comprising, with respect to 100% by weight of the solid content of the composition: 70-90% by weight of a resin mixture including a high molecular weight polysilicon-modified polyurethane main resin, a low molecular weight polysilicon-modified polyurethane auxiliary resin, and an auxiliary epoxy resin; 0.5-10% by weight of a tarnish inhibitor; 0.5-10% by weight of an adhesion promoter; 0.5-10% by weight of an anticorrosive agent; 0.1-2% by weight of a coloring pigment; and 0.1-1% by weight of a pigment stabilizer.

Patent Information

Application #

Filing Date

15 April 2024

Publication Number

46/2024

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

Parent Application

Applicants

POSCO CO., LTD

6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Inventors

1. CHO, Soo-Hyoun

c/o Gwangyang Iron & Steel Works, 20-26, Pokposarang-gil Gwangyang-si, Jeollanam-do 57807

2. SON, Won-Ho

c/o Pohang Iron & Steel Works, 6262, Donghaean-ro, Nam-gu Pohang-si, Gyeongsangbuk-do 37877

Specification

Documents

Application Documents

#	Name	Date
1	202417030337-STATEMENT OF UNDERTAKING (FORM 3) [15-04-2024(online)].pdf	2024-04-15
2	202417030337-REQUEST FOR EXAMINATION (FORM-18) [15-04-2024(online)].pdf	2024-04-15
3	202417030337-PROOF OF RIGHT [15-04-2024(online)].pdf	2024-04-15
4	202417030337-POWER OF AUTHORITY [15-04-2024(online)].pdf	2024-04-15
5	202417030337-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [15-04-2024(online)].pdf	2024-04-15
6	202417030337-FORM 18 [15-04-2024(online)].pdf	2024-04-15
7	202417030337-FORM 1 [15-04-2024(online)].pdf	2024-04-15
8	202417030337-FIGURE OF ABSTRACT [15-04-2024(online)].pdf	2024-04-15
9	202417030337-DECLARATION OF INVENTORSHIP (FORM 5) [15-04-2024(online)].pdf	2024-04-15
10	202417030337-COMPLETE SPECIFICATION [15-04-2024(online)].pdf	2024-04-15
11	202417030337-FORM-26 [02-07-2024(online)].pdf	2024-07-02
12	202417030337-Others-030724.pdf	2024-07-06
13	202417030337-GPA-030724.pdf	2024-07-06
14	202417030337-Correspondence-030724.pdf	2024-07-06
15	202417030337-FORM 3 [12-09-2024(online)].pdf	2024-09-12