Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 20, 2011
Patent Application Number
12094793
Date Filed
November 28, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A non-aqueous pigment dispersion includes a color pigment, a polymeric dispersant, and a dispersion synergist wherein the molecular weight of the anionic part of the dispersion synergist containing at least one carboxylate anion is smaller than 98% of the molecular weight of the color pigment and that the anionic part of the dispersion synergist has a similarity coefficient SIM of at least 0.5 with the similarity coefficient defined by:
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