Patent ID: 8247151

Claim:
A liquid electrophoretic ink comprising: a non-polar carrier liquid; a plurality of particles dispersed in the carrier liquid, individual particles of the plurality containing: a polymeric resin having functional groups, at least some of which are non-polar; a dendritic macromolecule having polar functional groups, some of the dendritic macromolecule polar groups being coupled to some of the resin non-polar groups, other of the dendritic macromolecule polar groups not being coupled to any component of the resin to facilitate particle adhesion to a substrate, and other of the resin non-polar groups not being coupled to any component of the dendritic macromolecule; and a colorant encapsulated by the coupled polymeric resin and dendritic macromolecule to form the particles; and additives configured to charge the particles.