The invention relates to polyurethanes, inks comprising polyurethanes and their use in ink jet printing where the polyurethane comprises a colored water-dissipatable polyurethane obtainable from the reaction of a polyisocyanate, a compound providing water-dispersing groups and a colorant having at least two functional groups.
This invention relates to coloured polymer particles preferably with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, colour electrophoretic displays comprising such particle, and new polymerisable dyes.
This invention relates to polymer particles, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, electrophoretic displays comprising such particle, and new polymerizable dyes.