Metal pigments
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United States of America Patent
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-
Dec 15, 1998
Issued Date -
N/A
app pub date -
Nov 7, 1997
filing date -
Mar 24, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The present invention relates to a metal pigment, comprising a particle, preferably a flake, of iron or an alloy thereof, having on its surface a colored coating, formed by exposing the said particle to an elevated temperature in an oxygen-containing atmosphere. The product finds use in surface coatings and in the mass coloration of plastics, especially where a colored 'glitter' effect is required.
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