Pigment dispersion composition, display apparatus, and method of manufacture the apparatus
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United States of America Patent
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Apr 8, 2003
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N/A
app pub date -
Jan 22, 1999
filing date -
Oct 8, 1993
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Expired
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Abstract
The pigment dispersion composition having a good dispersibility, a good transparence and an anti-coating properties, which contains 0.5 to 50 parts by weight of an inorganic pigment, at least one type of dispersant selected from the group consisting of a sodium salt, an ammonium salt and an amine salt of an acrylic resin, an acryl copolymer resin, a polycarbonic acid, a condensation product of aromatic formalin sulfonate, and water or a solvent miscible with water.
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