Patent ID: 9482979
Filing Date: 2016-11-01
CPC Classification: G03G

Claim Text:
1. A liquid toner dispersion provided with marking particles comprising a pigment and a resin, said dispersion comprising a nonpolar organic solvent and a hyper-dispersant comprising a graft copolymer provided with an anchor group comprising an amine-functionalised polymer, wherein the amine-functionalised polymer has 3-25 binding sites in the form of nitrogen atoms, onto which at least one stabilising group is grafted, wherein the amine-functionalised polymer has an weight-average molecular weight of in the range of 100-1000 g/mol, wherein said stabilising group comprises an oligomer of hydroxylated fatty acids, of which a carboxylic acid group is coupled to a binding site of the amine-functionalised polymer and wherein the graft copolymer has a weight-average molecular weight in the range of 1500-40,000 g/mol.