-
1.发明公开公开(公告)号：US20240270979A1
公开(公告)日：2024-08-15
申请号：US18613425
申请日：2024-03-22
发明人： Chang-Hoon CHOI , Dong-Yun KIM , Min-Ho JO , Jae-Duck KO , Won-Ho SON , Jong-Hwa KIM
IPC分类号： 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分类号： 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
摘要： Provided is a surface-treated steel sheet including: a steel sheet; and a corrosion-resistant film layer formed on at least one surface of the steel sheet. The corrosion-resistant film layer includes a product formed by a hydrolysis reaction of silica and an alkoxy silane and an acrylate-based polymer, comprises 25 to 65 wt % of carbon (C), 20 to 70 wt % of silicon (Si), and 1 to 40 wt % of oxygen (O), and in the corrosion-resistant film layer, a ratio of silicon (Si) to oxygen (O) (Si—O bonding) and silicon (Si) to carbon (C) (Si—C bonding) is 80 to 95 wt %:5 to 20 wt %.
-
2.发明申请公开(公告)号：US20200032080A1
公开(公告)日：2020-01-30
申请号：US16337575
申请日：2017-09-28
发明人： Chang-Hoon CHOI , Dong-Yun KIM , Min-Ho JO , Jae-Duck KO , Won-Ho SON , Jong-Hwa KIM
IPC分类号： C09D5/08 , C09D133/08 , C09D183/04 , C09D175/04 , C09D167/00 , C08K3/36 , C08K3/24 , C08K5/09 , C08K5/05 , B32B15/082 , C23C26/00
摘要： 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.
-
公开(公告)号：US20210253880A1
公开(公告)日：2021-08-19
申请号：US17266194
申请日：2019-08-07
发明人： Chang-Hoon CHOI , Dong-Yun KIM , Won-Ho SON , Hee-Jea EUN , Jae-Duck KO
摘要： 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.
-
4.发明公开公开(公告)号：US20240351065A1
公开(公告)日：2024-10-24
申请号：US18763710
申请日：2024-07-03
申请人： POSCO CO., LTD
发明人： Chang-Hoon CHOI , Won-Ho SON , Hee-Jea EUN
IPC分类号： B05D7/14 , B05D7/00 , C09D5/08 , C09D7/61 , C09D7/63 , C09D133/08 , C09D171/00
CPC分类号： B05D7/14 , B05D7/52 , C09D5/086 , C09D7/61 , C09D7/63 , C09D133/08 , C09D171/00 , B05D2202/15
摘要： 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.
-
-
-
搜索结果
4 条记录 (耗时 0.022 秒)
