Metallic coating using two coat one bake method

Coating processes – Applying superposed diverse coating or coating a coated base – Synthetic resin coating

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427409, B05D 302

Patent

active

044630387

ABSTRACT:
There is provided a two-coat, one-bake metallic coating method which comprises applying, first, (a) a base coat composition containing an acrylic polyol oligomer having an average molecular weight of 500 to 2000 and a non-yellowing polyisocyanate compound in a NCO/OH ratio of 0.5/1 through 1/0.5 and further containing an appropriate amount of a metallic pigment and, then, on top thereof (b) a clear top coat composition containing said acrylic polyol oligomer and non-yellowing polyisocyanate compound in a NCO/OH ratio of 0.5/1 through 1/0.5 and causing the resulting coats to cure simultaneously. There are also provided coating compositions to be used in the above coating method.

REFERENCES:
patent: 4254168 (1981-03-01), Monson
patent: 4315053 (1982-02-01), Poth et al.
patent: 4355071 (1982-10-01), Chang
patent: 4359504 (1982-11-01), Troy
patent: 4382114 (1983-05-01), Hohlein et al.

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