公开(公告)号：EP1393122B1

公开(公告)日：2018-03-28

申请号：EP02769744.0

申请日：2002-05-15

申请人： E Ink Corporation

发明人： HONEYMAN, Charles H. ,  MORAN, Elizabeth A. ,  ZHANG, Libing ,  PULLEN, Anthony E. ,  PRATT, Emily J. ,  HOUDE, Kimberly L. ,  KING, Matthew A. ,  HERB, Craig A. ,  PAOLINI, Richard J., Jr.

IPC分类号： G02F1/167 ,  C09B67/00

CPC分类号： B82Y30/00 ,  C01P2002/88 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90 ,  C09B67/0013 ,  C09B68/20 ,  C09B68/24 ,  C09B68/4235 ,  C09B68/44 ,  C09B68/446 ,  C09C1/00 ,  C09C1/24 ,  C09C1/343 ,  C09C3/10 ,  G02F1/167 ,  G02F2001/1678

摘要： In electrophoretic media, it is advantageous to use pigment particles having about 1 to 15 percent by weight of a polymer chemically bonded to, or cross-linked around, the pigment particles. The polymer desirably has a branched chain structure 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 first attaching a polymerizable or polymerization-initiating group to the particle and then reacting the particle with one or more polymerizable monomers or oligomers.