Patent ID: 7655372
Filing Date: 2010-02-02
Classification: G03G

Abstract:
1. A toner composition comprising a resin and a colorant, wherein the colorant is a) a modified pigment comprising a pigment having attached at least one organic group having the formula —X—I, wherein X, which is directly attached to the pigment, represents an arylene or heteroarylene group, or an alkylene group, and I represents a non-polymeric group comprising at least one ionic group or at least one ionizable group; b) a modified pigment comprising a pigment having attached at least one organic group having the formula —X-A, wherein X, which is directly attached to the pigment, represents an arylene or heteroarylene group, or an alkylene group, and A represents a non-polymeric group comprising at least one carboxylic acid group derivative having less than or equal to 16 carbon atoms; c) a carbon product comprising a carbon phase and a metal-containing species phase; d) a carbon black having a DBP of less than or equal to about 50 cc/100 g and a BET surface area of between about 50 m e) a carbon black having a BET surface area of greater than or equal to about 240 m