SURFACE COATED PIGMENT PARTICLES
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United States of America Patent
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Issued Date -
Jan 1, 2015
app pub date -
Jun 26, 2013
filing date -
Jun 26, 2013
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Abstract
Disclosed is a method of surface coating pigment particles, comprising treating uncoated titanium dioxide particles with a reaction product of a silicon oxide with an alkaline earth metal salt to form a coating comprising an oxide of silicon and the alkaline earth metal. The particles may also be treated with aluminum compounds to produce an aluminum oxide in the coating.
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