COLORED AND COATED CHROMATE-FREE METAL SHEET, AND COLORED AQUEOUS COMPOSITION

WIPO Patent Application WO/2012/074044

A1

The present invention provides a colored and coated chromate-free metal sheet which has, formed on at least one surface of a metal sheet, a colored coating film (α) that comprises a film-forming component comprising a polyurethane resin (A1) containing a urea group, a urethane group and a carboxyl group, a coloring pigment (B) and spherical silica particles (C) having an average particle diameter of 5-50 nm, wherein the polyurethane resin (A1) contains structural units each derived from a polyester polyol component (a) having an aromatic ring structure and structural units each derived from an isocyanate component (b) having an aromatic ring structure, each of the structural units derived from the isocyanate component (b) contains an aromatic ring structure, and the colored coating film (α) has a thickness of 2-10 μm, and wherein the metal sheet has excellent chemical resistance.

JP2019220328	EXTERIOR MATERIAL FOR POWER STORAGE DEVICE
JP6459500	Moisture-curable polyurethane hot-melt resin composition, adhesive, and laminate

MORISHITA ATSUSHI (JP)
HAYASHI KIMITAKA (JP)
FUDA MASAHIRO (JP)
WADA YUUSUKE (JP)
SATOU RIE (JP)

PCT/JP2011/077783

June 07, 2012

December 01, 2011

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NIPPON STEEL CORP (JP)
NIPPON FINE COATINGS INC (JP)
MORISHITA ATSUSHI (JP)
HAYASHI KIMITAKA (JP)
FUDA MASAHIRO (JP)
WADA YUUSUKE (JP)
SATOU RIE (JP)

B32B15/095; B32B27/40; C08K3/00; C08K3/36; C08L67/00; C08L75/06; C09D175/06

JPS60147427A	1985-08-03
JPH09267074A	1997-10-14
JP2005200757A	2005-07-28
JP2000262967A	2000-09-26
JP2007204847A	2007-08-16

SHIGA Masatake et al. (JP)
Masatake Shiga (JP)

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