Patent ID: 7881648
Filing Date: 2011-02-01
Classification: G03G

Abstract:
1. A positive charge control resin comprising a copolymer obtained by polymerizing as copolymerization components an acrylate or methacrylate monomer represented by Formula (1), an amino-group-containing monomer(s) represented by Formula (2) and/or Formula (3), and a carboxyl-group-containing monomer(s) represented by Formula (4) and/or Formula (5): wherein R 1 represents an alkyl group having 4 or more carbon atoms or a fluoroalkyl group having 1 to 14 carbon atoms which has 3 or more fluorine atoms; R 2 , R 2a , R 2b , R 2c and R 2d each independently represent a hydrogen atom or a methyl group; R 3a and R 3b each independently represent a divalent organic group having 1 to 7 carbon atoms; R 4a , R 4b , R 5a and R 5b each independently represent a hydrogen atom, an organic group having 1 to 20 carbon atoms, or a divalent organic group having 4 to 20 carbon atoms in which R 4a and R 5a , or R 4b and R 5b , have chemically combined, or a divalent organic group having 4 to 19 carbon atoms which contains at least one of an oxygen atom, a nitrogen atom and a sulfur atom and in which R 4a and R 5a , or R 4b and R 5b , have chemically combined; R 6 represents an alkylene group having 2 to 6 carbon atoms; R 7 represents an alkylene group having 2 to 4 carbon atoms; R 8 represents an ethylene group, a vinylene group, a 1,2-cyclohexylene group or a 1,2-phenylene group; and n represents an integer of 0 to 10.