Iron oxide coated perlescent pigments
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United States of America Patent
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-
May 17, 1988
Grant Date -
N/A
app pub date -
Aug 7, 1986
filing date -
Aug 7, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The application relates to a pearlescent pigments based on platelet-like substrates, such as mica, which are coated with metal oxides, the metal oxide layer containing titanium and also iron, wherein the pigment has a multi-layer structure in which a first layer of TiO.sub.2 in the rutile form is followed by a layer of pseudobrookite and an iron oxide layer.
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