Pigment composition and process for preparation of the same
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United States of America Patent
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Feb 9, 2010
Grant Date -
Apr 12, 2007
app pub date -
Mar 5, 2004
filing date -
Mar 5, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a pigment preparation based on at least one inorganic pigment and at least one organic pigment, and to a method for producing one such pigment preparation. Said pigment preparation contains particles wherein fine organic pigment particles are combined with inorganic pigment particles, said particles also being provided with an organic macromolecular coating. The inventive pigment preparation is produced by wet-grinding the inorganic and organic pigments, optionally adding other constituents, in the presence of a surface-active substance in the form of a macromolecular organic compound.
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