Iron oxide pigments
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United States of America Patent
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Oct 11, 1994
Grant Date -
N/A
app pub date -
Nov 16, 1992
filing date -
Nov 16, 1991
priority date (Note) -
Expired
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Abstract
The invention relates to iron oxide pigments based on silica, zirconium dioxide and/or titanium dioxide particles coated with iron oxide, the iron oxide content being more than 350% by weight, relative to the weight of the silica, zirconium dioxide and/or titanium dioxide particles.
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