Metal Cations and Metal Effect Pigments Comprising Anions Containing Phosphorus and/or Sulphur, Method for Producing Said Metal Effect Pigments and Use Thereof
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United States of America Patent
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Issued Date -
Mar 7, 2013
app pub date -
May 10, 2011
filing date -
May 14, 2010
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Abandoned
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Abstract
The invention relates to a metallic effect pigment selected from platelet-shaped aluminum, platelet-shaped metallic pigments having a copper fraction of 60% to 100% by weight, and mixtures thereof, having a coating of silicon oxide SiOx, where x is a number from 1 to 2, where the coated metallic effect pigment comprises metal cations and phosphorus- and/or sulfur-containing anions present independently of one another on the metallic effect pigment surface and/or in the silicon oxide layer SiOx, and the element ratio in atomic fractions of metal cation MC and phosphorus P and/or sulfur S to silicon Si is defined by formulae (I) and (II):
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