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Last Updated Wednesday, October 7 2015

BASF Patents

Published May 13, 2008
Patent No. U.S. 7,261,926 B2
BASF Coatings AG has been granted a patent for a solventborne coating material that has an optical effect from an effect pigment and is resistant to clouding, the solventborne coating material is comprised of at least one binder curable by one of physically, thermally or thermally and with actinic radiation; at least one effect pigment or a mixture of a color pigment and an effect pigment, and at least one transparent or colorless powder present in an amount of from 0.05-7.0% by weight, based on the solids content of the coating material, the powder being substantially inert with respect to the other constituents of the coating material and whose particles have average size of from 3.0 to 7.5 μm, a particle size distribution such that the maximum particle size is below 10 μm, and a density of from 1.25 to 3.6 g cm-3, wherein the solventborne coating material is curable by one of physically, thermally or thermally and with actinic radiation, and components are present in a combination such that an optical effect coating prepared from the solventborne coating material does not exhibit clouding.

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