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US 2006/0223910 A1Published application
Sparkle Effect of Unique Particle Size Distribution
AssigneeBASF SE
InventorFrank Bagala
Life of this patent
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Abstract
An effect pigment formed from a synthetic platelet substrate such as glass flake has improved sparkle by reducing the amount of substrate particles having a size of less than 9 microns and greater than 85 microns. The present effect pigment is useful in cosmetics, personal care products, and industrial applications such as automotive paints.
Claims20
An effect pigment comprising a synthetic platelet coated with a translucent metal oxide film, said synthetic platelet having a size distribution characterized as a D10 of at least 9.5 microns, a D50 of between about 20 and less than 40 microns, and a D90 of over 35 to less than 85 microns.
Dependencies are inferred from the claim text.