| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of a polymer to be used for forming coats on particles, a technique preferable for forming polymer coats on electrophoretic particles, and an electrophoretic medium. SOLUTION: In the electrophoretic medium, it is advantageous to use pigment particles having about 1 to 15 wt.% of a polymer chemically bonded to, or cross-linked around the pigment particles. The polymer desirably has a branched chain with side chains extending from a main chain. Charged or chargeable groups can be incorporated into the polymer or can be bonded to the particles separately from the polymer. The polymer-coated particles can be prepared by attaching a polymerizable or polymerization-initiating group to the particle at first and then reacting the particle with one or more polymerizable monomers or oligomers. COPYRIGHT: (C)2008,JPO&INPIT
|
