公开(公告)号：US20170015837A1

公开(公告)日：2017-01-19

申请号：US15124545

申请日：2014-03-24

Applicant: NISSHIN STEEL CO., LTD.

Inventor： Shinji TAKAOKA ,  Takahide HAYASHIDA ,  Koichiro UEDA ,  Yasunori FUJIMOTO ,  Naho KAWAHARA ,  Katsumi OWA

IPC: C09D5/08 ,  C09D7/12 ,  C09D133/02 ,  C23C22/73

CPC classification number: C09D5/084 ,  B05D7/16 ,  B05D7/54 ,  B32B15/18 ,  B32B2307/714 ,  B32B2419/00 ,  C08K3/013 ,  C09D5/086 ,  C09D7/61 ,  C09D7/63 ,  C09D7/69 ,  C09D133/02 ,  C23C22/73

Abstract: A coated steel sheet comprises: a steel sheet; a primer coating film which is arranged on the steel sheet and comprises an anti-corrosive pigment and an aggregate composed of primary particles; and a top coating film which is arranged on the primer coating film. The anti-corrosive pigment comprises at least one compound selected from the group consisting of a bivalent tin salt, a trivalent vanadium salt, a tetravalent vanadium salt, a tetravalent molybdenum salt, an oxycarboxylic acid salt, an ascorbic acid, a phosphorous acid salt and a hypophosphorous acid salt.

Abstract translation: 涂层钢板包括：钢板; 底漆涂布膜，其布置在钢板上并包含防腐颜料和由初级颗粒组成的聚集体; 以及布置在底涂层上的顶涂层。 防腐颜料包含选自二价锡盐，三价钒盐，四价钒盐，四价钼盐，羟基羧酸盐，抗坏血酸，亚磷酸盐中的至少一种化合物和 次磷酸盐。

公开(公告)号：US20170216881A1

公开(公告)日：2017-08-03

申请号：US15501606

申请日：2014-12-16

Applicant: Nisshin Steel Co., Ltd.

Inventor： Shinji TAKAOKA ,  Takahide HAYASHIDA ,  Koichiro UEDA ,  Yasunori FUJIMOTO ,  Naho KAWAHARA ,  Katsumi OWA

IPC: B05D7/00 ,  C23C8/42 ,  B05D1/28 ,  C23C2/12

CPC classification number: B05D7/53 ,  B05D1/28 ,  B05D2202/10 ,  B32B15/08 ,  B32B15/18 ,  B32B2307/714 ,  B32B2419/00 ,  C09D5/082 ,  C09D5/084 ,  C09D7/40 ,  C09D7/61 ,  C09D7/69 ,  C23C2/12 ,  C23C8/42

Abstract: This coated steel sheet comprises: a steel sheet; a primer coating film that is arranged on the steel sheet and contains a chromic acid-based rust preventive pigment and aggregate that serves as primary particles, while not containing porous particles; and a top coating film that is arranged on the primer coating film. The aggregate satisfies the following formula (1) and formula (2). D10≧0.6T (1) D90