Corrosion-stable aluminum pigments and process for the production thereof
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United States of America Patent
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app pub date -
Jun 27, 2002
filing date -
Aug 30, 1996
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Abstract
In aluminum-based metal pigments produced by physical vapor deposition of a metal film and subsequent crushing of the metal film metal surfaces which are exposed after the operation of crushing the metal film and in particular fracture surfaces thereof are covered with a passivting protective layer to afford corrosion stability of those metal pigments.
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