Stock material or miscellaneous articles – Composite – Of metal
Patent
1997-10-20
1999-10-19
Thibodeau, Paul
Stock material or miscellaneous articles
Composite
Of metal
428457, 428458, 428480, 428482, B32B 1508
Patent
active
059686626
ABSTRACT:
A coated metal sheet has undercoat and topcoat paint films formed on the metal substrate. The undercoat film is composed of polyester paint, which is preferably prepared by adding methylated or butylated melamine resin as a curing agent to hydroxyl group-containing macromolecular polyester resin having a glass-transition temperature of 10.degree. C. or higher. The topcoat film is composed of the polyester paint which is preferably prepared by adding an isocyanate curing agent in an amount of 10 wt. % or more to hydrocyl group-containing macromolecular polyester resin. The substrate metal may be a chemically converted steel sheet, galvarnized steel sheet, stainless steel sheet or aluminum sheet. Since the coated steel sheet is bonded with excellent shear strength and durability, it is useful as the casing of electric home appliance or business machine, or a structural member or part for building or furniture.
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Kamikawa Hideyasu
Matsuo Hiroshi
Morishige Michiharu
Nagatomo Toshio
Sakai Tetsuo
Ahmed Sheeba
Dainippon Ink & Chemicals Inc.
Nisshin Steel Co. Ltd.
Thibodeau Paul
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