Composite pigment
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United States of America Patent
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-
Mar 20, 2001
Grant Date -
N/A
app pub date -
Jan 9, 1998
filing date -
Jan 9, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A composite pigment, which consists of a colourant and a substrate, using a substrate (S) and a colourant (C), which are each coated with ions or ionisable compounds having a charge rotating in the same direction, and, if desired, of additional ions or ionisable compounds having a change rotating in the same direction as layer material (L), wherein either (I) the sign of the change of the coating of S, or the sign of the charge of the coating of S and of the charge of L, which is the same, is opposite to that of charge of the coating of C, or (II) the sign of charges of the coatings of S and C is the same and is opposite to that of the charge of L.
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Cited Art Landscape
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