Self-dispersed pigments and methods for making and using the same
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United States of America Patent
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Feb 21, 2012
Grant Date -
Dec 22, 2011
app pub date -
May 17, 2011
filing date -
Aug 23, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n−b. When n is equal to or greater than b, and if b is 2 or 3, each. N—S—ZM can be the same or different.
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