Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 18, 2007
Patent Application Number
11168539
Date Filed
June 29, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention provides both a pigment dispersing resin which is a copolymer of:(A) polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of tertiary amino group, quaternary ammonium salt and sulfonic acid group;(B) nonionic polymerizable unsaturated monomer having polyoxyalkylene chain;(C) ultraviolet-absorbing polymerizable unsaturated monomer and/or an ultraviolet-stabilizing polymerizable unsaturated monomer; and(D) other ethylenically unsaturated monomer, and water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, dispersing agent as well.
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