Mica-containing pigment composition and a water base paint compo

Details Mica-containing pigment composition and a water base paint compo Mica-containing pigment composition and a water base paint compo

1993-11-15

1995-01-03

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106487, 106491, 106506, C04B 1420

Patent

active

053782755

ABSTRACT:
A water base paint composition containing a mica-containing pigment(s), said composition comprising a water base paint containing a water soluble or water dispersion film-forming polymer selected from among acrylic resin, polyester resin, alkyd resin and polyurethane resin, a cross-linking agent and optional additives such as pigments, thickeners, fillers, etc., wherein a mica-containing pigment(s) comprised of mica flakes or metal-oxide-coated mica flakes with a surface acid content of 0-10 micromol/g, a surface base content of 0-30 micromol/g and a heat of water wetting of 0-1.5 J/g, the surface of which pigment being uniformly coated with melamine resin which has at least one triazine ring per molecule, is uniformly dispersed in said water base paint. The water base paint composition containing a mica-containing pigment(s) of this invention has superior storage stability as well as superior film appearance and film performance, and thus it is a water base paint composition particularly suited for the metallic coating of automobiles and such.

REFERENCES:
patent: 4552593 (1985-11-01), Ostertag
patent: 4976787 (1990-12-01), Ito et al.
patent: 5246492 (1993-09-01), Arima et al.

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