Co-milling organic pigments with fumed silica
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United States of America Patent
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Jul 12, 2011
Grant Date -
Jul 10, 2008
app pub date -
Dec 20, 2007
filing date -
Jan 5, 2007
priority date (Note) -
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Abstract
A pigment composition comprising an intimate mixture of an organic pigment and fumed silica is prepared which exhibit improved coloristic characteristics including excellent chroma, color strength and enhanced color flop when incorporated into in polymeric systems, such as plastics or surface coatings, for example inks and paints. Also provided are coating compositions and plastic articles that are pigmented with a tinctorially effective amount of the inventive pigment composition. A particular embodiment of the invention relates to pigments useful in automotive coatings.
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