Nano particle mineral pigment
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United States of America Patent
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Feb 26, 2013
Grant Date -
Aug 26, 2010
app pub date -
Feb 25, 2009
filing date -
Feb 25, 2009
priority date (Note) -
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Abstract
Mineral pigments (such as kaolin clay) having a high surface area and particle size in the nano scale range are provided which are useful in paper coating and filling, ink jet coating formulations, paint compositions, and as a filler in rubbers, plastics and polymers. These pigments are manufactured by intensive wet milling of a mineral composition which may have undergone prior dry grinding and then optionally subjecting the wet milled mineral composition to an acid treatment.
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