Patent ID: 7612140
Filing Date: 2009-11-03
Classification: C08F,G03G

Abstract:
1. A toner, characterized in that the toner comprises at least a graft copolymer and a coloring material, wherein the graft copolymer is formed by suspension polymerization or emulsion polymerization of a styrenic, methacrylic or acrylic monomer with an amphiphilic block copolymer having a hydrophilic block segment having a repeating unit structure represented by General Formula (1) shown below and a hydrophobic block segment having a repeating unit structure represented by general formula (2) shown below and a repeating unit structure represented by General Formula (3) shown below and has a structure in which a polymer produced by polymerization of styrenic, methacrylic or acrylic monomer is grafted to the side chain of the block copolymer; wherein the polymerizable functional group that the block copolymer has on the side chain is in a content of 0.0001 to 50 mol % with respect to the entire block copolymer; and wherein the styrenic, methacrylic or acrylic monomer that is graft polymerized to the block copolymer is in an amount of 0.1% by weight to 95% by weight in the toner; General Formula (1) wherein R General Formula (2) wherein R General Formula (3) wherein —OR —OCH —OCH —OCH —OCH