Pearlescent coating compositions
AssigneeCiba-Geigy Corporation
InventorsJohannes Pfenninger, Edward E. Jaffe
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Abstract
Pearlescent coating compositions comprising a resin binder system, coated mica particles and a manganese salt of an azo pigment, these coating compositions being of particular value in two coat automotive paint systems wherein the pearlescent composition is applied as the base coat which is covered with a clear top coat to provide paint systems with intense color, high pearlescence and excellent durability.
Claims11
A pearlescent coating composition comprising a resin binder system selected from the group consisting of acrylic, alkyd, polyurethane, polyester and aminoplast resins, metallic oxide coated mica particles and a manganese salt of an azo pigment corresponding to the formula ##STR2## wherein R.sup.1 and R.sup.2, independent of each other, are hydrogen, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkoxycarbonyl, carbamoyl or sulfamoyl.
Dependencies are inferred from the claim text.