-
公开(公告)号：US20230019863A1
公开(公告)日：2023-01-19
申请号：US17781919
申请日：2020-12-03
Applicant: POSCO , NOROO COIL COATINGS CO., LTD.
Inventor： Chang-Hoon Choi , Won-Ho Son , Chan-Seok Bang , Jae-Duck Ko
Abstract: The present disclosure provides a solution composition having excellent acid corrosion resistance and adhesion to a steel sheet, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet. Specifically, the present disclosure provides a solution composition for treating a surface of a steel sheet, the solution composition containing colloidal silica, alkoxy silane, a solvent, an acidity regulator, an acrylate-based monomer, an adhesion improver including a backbone formed of siloxane bonds, and a metal chelate curing agent, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet.
-
公开(公告)号：US20250051929A1
公开(公告)日：2025-02-13
申请号：US18721631
申请日：2022-12-19
Applicant: POSCO CO., LTD
Inventor： Chang-Hoon Choi , Soo-Hyoun Cho , Tae-Chul Kim , Sung-Joo Kim
Abstract: The present invention relates to a solution composition capable of improving pitting corrosion resistance and blackening resistance of a steel sheet, a steel sheet surface-treated using same, and a method for manufacturing the steel sheet.
-
公开(公告)号：US10822705B2
公开(公告)日：2020-11-03
申请号：US16339888
申请日：2017-09-29
Applicant: POSCO
Inventor： Soo-Hyoun Cho , Won-Ho Son , Chang-Hoon Choi
IPC: B32B15/08 , C23C22/42 , C23C22/82 , C09D5/08 , C23C2/40 , C23C22/40 , C09D4/00 , C23C2/06 , C23C2/26 , C23C22/05 , C23C22/53
Abstract: Provided is a surface-treating solution composition, a zinc-based plated steel sheet surface-treated using the same, and a method for producing the same, wherein the surface-treatment solution composition includes: 10 wt % to 20 wt % of a trivalent chromium compound containing chromium phosphate (A) and chromium nitrate (B), the content ratio thereof, A/(A+B), satisfying 0.3 to 0.6; 20 wt % to 40 wt % of a silane-based sol-gel resin in which three types of silane compounds are crosslinked; 0.2 wt % to 0.4 wt % of a rust-inhibiting and corrosion-resistant agent; 0.1 wt % to 0.3 wt % of a molybdenum-based compound; 5 wt % to 10 wt % of a water-soluble cationic urethane resin; 0.5 wt % to 2.0 wt % of a silane coupling agent; 0.5 wt % to 2.0 wt % of an Al compound; and 25.3 wt % to 63.7 wt % of water. The zinc-based plated steel sheet surface-treated with the surface-treatment solution composition containing trivalent chromium has an excellent effect on corrosion resistance, blackening resistance, fingerprint resistance, piping oil infiltration, and alkali resistance.
-
Patent Agency Ranking
4.发明授权公开(公告)号：US12030082B2
公开(公告)日：2024-07-09
申请号：US17416210
申请日：2019-09-18
Applicant: POSCO
Inventor： Chang-Hoon Choi , Won-Ho Son , Hee-Jea Eun
IPC: B05D7/14 , B05D7/00 , C09D5/08 , C09D7/61 , C09D7/63 , C09D133/08 , C09D171/00
CPC classification number: B05D7/14 , B05D7/52 , C09D5/086 , C09D7/61 , C09D7/63 , C09D133/08 , C09D171/00 , B05D2202/15
Abstract: Provided is a bilayer composition for surface treatment of a steel plate and a surface-treated steel plate using same. The bilayer composition for surface treatment of a steel plate, comprising an undercoat coating composition including 1 to 12 wt % of a phenoxy resin, 0.001 to 1.0 wt % of colloidal silica, 0.001 to 1.0 wt % of a silane coupling agent, 0.1 to 1.0 wt % of a corrosion inhibitor, 0.001 to 1.0 wt % of a phosphoric acid compound as a long-term corrosion resistance improving agent, and a balance of water; and a topcoat coating composition including 0.1 to 5.0 wt % of an acrylic acid resin, 30 to 50 wt % of colloidal silica, 40 to 60 wt % of alkoxy silane, 5 to 15 wt % of an acrylate-based monomer, 0.01 to 1.00 wt % of an acidity control agent, and a balance of an organic solvent.
-
5.发明申请公开(公告)号：US20150218705A1
公开(公告)日：2015-08-06
申请号：US14367714
申请日：2012-12-21
Applicant: POSCO
Inventor： Yeon-Ho Kim , Young-Jin Kwak , Yon-Kyun Song , Yang-Ho Choi , Tae-Yeob Kim , Kyoung-Pil Ko , Chang-Hoon Choi , Jong-Sang Kim
CPC classification number: C23C28/321 , C23C2/26 , C23C22/07 , C23C22/44 , C23C22/53 , C23C22/73 , C23C22/76 , C23C22/78 , C23C22/83 , C23C28/00 , C23C28/3225 , C23C28/34 , C23C28/345 , C23C28/3455 , C23C30/005 , Y10T428/12535 , Y10T428/12549
Abstract: A conversion coating composition comprising 0.01 wt % to 0.2 wt % of phosphorous (P); 0.01 wt % to 0.2 wt % of magnesium (Mg); 0.005 wt % to 0.15 wt % of zirconium (Zr); 0.005 wt % to 0.15 wt % of titanium (Ti); 0.005 wt % to 0.15 wt % of vanadium (V); 0.05 wt % to 1 wt % of phenol resin; the balance of water and other unavoidable impurities is provided. A surface treated steel sheet comprising a base steel sheet; a zinc or zinc alloy plated layer formed on the base steel sheet; a blackening layer formed on the zinc or zinc alloy plated layer; and an organic and inorganic complex conversion coating layer formed on the blackening layer, wherein the organic and inorganic complex conversion coating layer may satisfy the weight ratio of P:Mg:Zr:Ti:V=1:0.045 to 2:0.035 to 1.5:0.035 to 1.3:0.035 to 1.5 (based on the weight of P) is also provided. A method for manufacturing a steel sheet treated with the conversion coating composition is also provided.
Abstract translation: 包含0.01重量％至0.2重量％的磷（P）的转化涂料组合物; 0.01重量％〜0.2重量％的镁（Mg）; 0.005重量％〜0.15重量％的锆（Zr）; 0.005重量％〜0.15重量％的钛（Ti）; 0.005重量％至0.15重量％的钒（V）; 0.05重量％〜1重量％的酚醛树脂; 提供了水和其他不可避免的杂质的平衡。 1.一种表面处理钢板，包括基材钢板; 形成在基材钢板上的锌或锌合金镀层; 形成在锌或锌合金镀层上的黑化层; 以及形成在黑化层上的有机和无机复合转化涂层，其中有机和无机复合转化涂层可以满足P:Mg:Zr:Ti:V = 1:0.045-2:0.035-1.5:2的重量比。 0.035〜1.3：0.035〜1.5（基于P的重量）。 还提供了用转化涂料组合物处理的钢板的制造方法。
-
公开(公告)号：US12054643B2
公开(公告)日：2024-08-06
申请号：US17266194
申请日：2019-08-07
Applicant: POSCO , NOROO COIL COATINGS CO., LTD.
Inventor： Chang-Hoon Choi , Dong-Yun Kim , Won-Ho Son , Hee-Jea Eun , Jae-Duck Ko
IPC: C09D4/06 , C09D4/00 , C09D5/08 , C09D7/20 , C09D7/40 , C09D7/61 , C09D7/63 , B82Y30/00 , B82Y40/00
CPC classification number: C09D7/61 , C09D4/00 , C09D4/06 , C09D5/084 , C09D7/20 , C09D7/63 , C09D7/67 , B82Y30/00 , B82Y40/00
Abstract: Provided is a composition for steel sheet surface coating, the composition comprising colloidal silica, a silane, a monomer, an organic resin, an acidity adjuster, a long-term corrosion-resistance improver, and a solvent; and a steel sheet coated with the composition. The steel sheet has excellent acid resistance, and maintains thickness uniformity thereof even when exposed to an acid for an extended period of time.
-
7.发明授权公开(公告)号：US11939489B2
公开(公告)日：2024-03-26
申请号：US16337575
申请日：2017-09-28
Applicant: POSCO , NOROO COIL COATINGS CO., LTD.
Inventor： Chang-Hoon Choi , Dong-Yun Kim , Min-Ho Jo , Jae-Duck Ko , Won-Ho Son , Jong-Hwa Kim
IPC: C09D5/08 , C08G77/04 , C08K3/24 , C08K3/30 , C08K3/36 , C08K5/05 , C08K5/09 , C08L83/06 , C09D4/00 , C09D7/40 , C09D133/08 , C09D175/04 , C09D183/04
CPC classification number: C09D5/08 , C08K3/24 , C08K3/36 , C08K5/05 , C08K5/09 , C09D4/00 , C09D7/67 , C09D133/08 , C09D175/04 , C09D183/04 , C08G77/04 , C08K2003/309 , C08K2201/005 , C08L83/06
Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.
-
8.发明授权公开(公告)号：US09683294B2
公开(公告)日：2017-06-20
申请号：US14367714
申请日：2012-12-21
Applicant: POSCO
Inventor： Yeon-Ho Kim , Young-Jin Kwak , Yon-Kyun Song , Yang-Ho Choi , Tae-Yeob Kim , Kyoung-Pil Ko , Chang-Hoon Choi , Jong-Sang Kim
IPC: C23C28/00 , C23C22/53 , C23C2/06 , C23C2/26 , C23C22/73 , C23C22/83 , C23C22/44 , C23C22/78 , C23C22/07 , C23C22/76 , C23C30/00
CPC classification number: C23C28/321 , C23C2/26 , C23C22/07 , C23C22/44 , C23C22/53 , C23C22/73 , C23C22/76 , C23C22/78 , C23C22/83 , C23C28/00 , C23C28/3225 , C23C28/34 , C23C28/345 , C23C28/3455 , C23C30/005 , Y10T428/12535 , Y10T428/12549
Abstract: A conversion coating composition comprising 0.01 wt % to 0.2 wt % of phosphorous (P); 0.01 wt % to 0.2 wt % of magnesium (Mg); 0.005 wt % to 0.15 wt % of zirconium (Zr); 0.005 wt % to 0.15 wt % of titanium (Ti); 0.005 wt % to 0.15 wt % of vanadium (V); 0.05 wt % to 1 wt % of phenol resin; the balance of water and other unavoidable impurities is provided. A surface treated steel sheet comprising a base steel sheet; a zinc or zinc alloy plated layer formed on the base steel sheet; a blackening layer formed on the zinc or zinc alloy plated layer; and an organic and inorganic complex conversion coating layer formed on the blackening layer, wherein the organic and inorganic complex conversion coating layer may satisfy the weight ratio of P:Mg:Zr:Ti:V=1:0.045 to 2:0.035 to 1.5:0.035 to 1.3:0.035 to 1.5 (based on the weight of P) is also provided. A method for manufacturing a steel sheet treated with the conversion coating composition is also provided.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.011 seconds)
