COATING COMPOSITION AND RESIN-COATED METAL SHEET

WIPO Patent Application WO/1998/018870

A1

A coating composition which comprises, by weight in terms of solid matter, 38 to 66 % of a binder resin containing a curing agent, 0.2 to 6 % of an organic lubricant, 20 to 50 % of a conductive pigment mainly comprising iron phosphide, and 3 to 25 % of other inorganic pigments including rust-preventing ones, the sum total of the pigments being 31 to 56 %, the amount of the binder resin R (%), and that of the organic lubricant W (%), satisfying the following formula, and a curing catalyst being further contained in an amount of 0.7 to 10 % based on the weight (in terms of solid matter) of the binder resin containing a curing agent: -0.4 x R + 16.2 � W � -0.4 x R + 30.4. Applying the composition on a galvanized and/or aluminized steel sheet surface prepared by chromating or the like in a thickness of 2 to 9 $gm(m) to form a resin coating film on the sheet can give a resin-coated steel sheet which is excellent in tight adhesion to top coating, weldability, the corrosion resistance of edge face, and workability and is suitable for the material of automotive repairing parts.

JP3969781	WATER-BASE URETHANE RESIN COMPOSITION AND WATER-BASE METAL-SURFACE-TREATING COMPOSITION CONTAINING THE SAME
WO/2020/138186	COATING COMPOSITION KIT AND USE THEREOF
JPH0696775	INDUSTRIAL APPLICABILITY: Surface-treated steel sheet having excellent corrosion resistance, adhesion and lubricity.

YOSHIDA TSUTOMU (JP)
IKISHIMA KENJI (JP)
FUKUI KIYOYUKI (JP)
MATSUMOTO MASAMITSU (JP)
HIROSE YOZO (JP)
SAKANE TADASHI (JP)
OSHIBA TOSHIHARU (JP)

PCT/JP1997/003919

May 07, 1998

October 29, 1997

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SUMITOMO METAL IND (JP)
NIPPON PAINT CO LTD (JP)
YOSHIDA TSUTOMU (JP)
IKISHIMA KENJI (JP)
FUKUI KIYOYUKI (JP)
MATSUMOTO MASAMITSU (JP)
HIROSE YOZO (JP)
SAKANE TADASHI (JP)
OSHIBA TOSHIHARU (JP)

C09D5/08; (IPC1-7): C09D5/24; B05D7/16

JPH05305450A	1993-11-19
JPS60203677A	1985-10-15
JPS5911247A	1984-01-20

See also references of EP 0877062A4

Hirose, Shoichi (4-2 Nihonbashi Honcho 4-chom, Chuo-ku Tokyo 103, JP)

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