Color metallic pigment and resin composition containing color metallic pigment
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United States of America Patent
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May 16, 2006
Grant Date -
Jul 7, 2005
app pub date -
Apr 3, 2003
filing date -
Apr 3, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to provide a color metallic pigment capable of implementing diverse colors, excellent in finished appearance and weather resistance and manufacturable by a safe and simple manufacturing method, a color metallic pigment comprising metal particles and a single-layer or multilayer coat covering the surface of each metal particle characterized in that at least one layer of the single-layer or multilayer coat is a cobalt coat consisting of an anhydrous oxide film elementally containing cobalt is provided. This cobalt coat preferably contains a compound in composition expressed by at least one type of composition selected from a group consisting of CoO, Co.sub.2O.sub.3, Co.sub.3O.sub.4, nCoO.mAl.sub.2O.sub.3 and nCoO.mSiO.sub.2 (n, m: arbitrary positive real numbers).
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