Rare earth manganese oxide pigments
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United States of America Patent
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Apr 1, 2003
Grant Date -
N/A
app pub date -
Jun 7, 2000
filing date -
Jun 7, 2000
priority date (Note) -
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Abstract
Rare earth manganese oxides are used as pigments. The pigments are preferably of the formula (Re.sub.x Mn)O.sub.y, where Re is at least one element selected from Y, La and Lanthanide elements, x is from 0.01 to 99, and y is the number required to maintain electroneutrality. Preferred rare earth elements include Y, La, Pr and Nd. The pigments are useful as colorants, and may possess improved reflectance characteristics in the infrared region, thereby reducing IR-induced heat buildup.
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