Process of molding a coated film

Details Process of molding a coated film Process of molding a coated film

1995-11-07

1998-03-24

Zimmerman, John J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284237, 4284259, 428457, 4273884, 4274071, 427410, B32B 1508, B05D 136, B05D 302, B05D 714

Patent

active

057310890

ABSTRACT:
This invention provides a process to form a coated film characterized in that, after a cationically electrodeposition paint is applied on a metal-made article to be coated and is heat-cured, the surface of the resulting electrodeposition coated film is coated with an aqueous primer, which is mainly composed of such a thermoplastic polyurethane resin as is produced by subjecting a carboxyl group-containing urethane prepolymer to chain extension in the presence of an aqueous medium, and, successively, with an aqueous base paint, and, next, with a clear paint, and that the resulting three-layer coated films are heated and are thereby cured simultaneously. By this process, there can be formed a multi-layer coated film excellent in chipping-resistance, corrosion-resistance, weatherability and physical performances.

REFERENCES:
patent: 4755435 (1988-07-01), Fujii et al.
patent: 4781949 (1988-11-01), Kasari
patent: 5242716 (1993-09-01), Iwase et al.
patent: 5288520 (1994-02-01), Toyoshima et al.
patent: 5326596 (1994-07-01), Kasari et al.
patent: 5330796 (1994-07-01), Kasari et al.
patent: 5362521 (1994-11-01), Ozaki et al.
patent: 5425926 (1995-06-01), Kunikiyo et al.

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