Pigment having angle dependence of the interference colors and its production process
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United States of America Patent
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Nov 29, 2011
Grant Date -
Jan 17, 2008
app pub date -
Apr 18, 2005
filing date -
Apr 19, 2004
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Abstract
or their mixtures as well as complexes. The mica substrate is wet-milled mica powders with a thickness of 0.1-0.9 micrometers and a diameter of 5-250 micrometers. The process involves wet chemical hydrolysis steps to alternately deposit the coatings and modulating the optical thickness of each coatings, to produce the pigment having angle dependence of the interference colors, which has various hues and ranges of angle dependence of the interference colors as well as higher brightness and vivid colors.
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