Multilayer pigments based on coated metal platelets
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United States of America Patent
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Aug 17, 2004
Grant Date -
Nov 13, 2003
app pub date -
Jun 4, 2003
filing date -
Aug 14, 1998
priority date (Note) -
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Abstract
The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.
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