Colored composite microparticles, process for producing the colored composite microparticles, colorant, color filter and ink for ink-jet printing
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United States of America Patent
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Nov 6, 2012
Grant Date -
Mar 24, 2011
app pub date -
Nov 22, 2010
filing date -
Sep 9, 2005
priority date (Note) -
Expired
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Abstract
Colored composite microparticles comprising silica and an organic pigment in which the silica is enclosed in the organic pigment and contained in an amount of 0.001 to 9% by weight (calculated as Si) based on the weight of the composite particles. These microparticles have a high tinting strength and are excellent in dispersibility and light fastness.
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