Title:
CHROMATE-FREE COATED METAL PLATE
Document Type and Number:
WIPO Patent Application WO/2012/029977
Kind Code:
A1
Abstract:
This chromate-free coated metal plate has a coating film (α) containing an organic resin (A), silica particles (C), and polyolefin resin particles (D) on at least one surface of a metal plate. When considering the average particle size of the polyolefin resin particles (D) to be a µm and the thickness of the coating film (α) to be b µm, the relationships 0.5 ≤ a ≤ 3, 2 ≤ b ≤ 10, and 0.1 ≤ a/b ≤ 0.8 are satisfied, and the silica particles (C) include both spherical silica particles (C1) having an average particle size of 5-50 nm and spherical silica particles (C2) having an average particle size of 0.3-5 µm. The result is a low-cost, aesthetic, chromate-free coated metal plate having highly superior workability, corrosion resistance, damage resistance, and the like without including hexavalent chromium, which has a high environmental impact,
Inventors:
MORISHITA, Atsushi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
森下 敦司 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HAYASHI, Kimitaka (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
林 公隆 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
FUDA, Masahiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
布田 雅裕 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
森下 敦司 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HAYASHI, Kimitaka (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
林 公隆 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
FUDA, Masahiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
布田 雅裕 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
Application Number:
JP2011/070302
Publication Date:
March 08, 2012
Filing Date:
August 31, 2011
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
MORISHITA, Atsushi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
森下 敦司 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HAYASHI, Kimitaka (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
林 公隆 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
FUDA, Masahiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
MORISHITA, Atsushi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
森下 敦司 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HAYASHI, Kimitaka (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
林 公隆 (〒71 東京都千代田区丸の内二丁目６番１号新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
FUDA, Masahiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
B32B15/08; B05D7/14; C09D7/12; C09D123/00; C09D161/28; C09D167/00; C09D175/00; C09D201/00; C23C26/00
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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Claims: