Inorganic anti-corrosive pigments and method for the production thereof
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United States of America Patent
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Jul 22, 2003
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N/A
app pub date -
May 4, 2001
filing date -
Aug 21, 1998
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Abstract
Inorganic anti-corrosive pigments consist of surface-coated solids having a grain size of 0.1 to 75 .mu.m. In order to improve the resistance of the paints and coatings containing such pigments, firstly Mn.sub.3 (PO.sub.4).sub.2 and secondly aluminium oxides and/or aluminium hydroxides are precipitated onto the solids.
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