Room temperature process for preparation of pearl pigments by precipitation method
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United States of America Patent
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Issued Date -
Feb 14, 2008
app pub date -
Dec 11, 2006
filing date -
Aug 11, 2006
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a process for preparing a pearl pigment, comprising the steps of (a) adding an aqueous solution of metal oxide to a substrate in a reactor and (b) adding ammonium bicarbonate aqueous solution as a precipitating agent.
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