Sun Chemical Corporation

Jennifer Louis

Jonathan Daniel Doll

Kenneth Fields, Ii

Kenneth Ii Fields

The oxidized aluminum pigment comprises not more than 95% by weight metallic aluminum, wherein the pigment is a flaky particle, and has a color travel from the hue angle range of about 50&#xb0; to about 100&#xb0; at the aspecular observation angle of 15&#xb0; to a hue angle range of about 200&#xb0; to about 270&#xb0; at the aspecular observation angle of 110&#xb0;. The oxidized aluminum pigment may be made by the steps of: providing a flaky aluminum pigment, and oxidizing the aluminum pigment in a water-in-oil emulsion comprising a surfactant in the presence of a base. The water-in-oil emulsion comprises a mixture of water dispersed in a hydrocarbon solvent. The aluminum pigment is predominantly in the hydrocarbon solvent during the oxidation step, and the amount of water in the mixture is in the range of about 5% to about 40% of the total weight of the emulsion.

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Cincinnati, OH, United States of America

Jennifer Louis