Fish & Richardson P.C.
Carbon black graft polymer, method for production thereof, and use thereof
 A carbon black graft polymer which excels in stability of dispersion in various media, coloring property, and imperviousness to light is obtained by mixing under heating a block- or graft-copolymer having a segment (A) containing a reactive group capable of reacting with a functional group on the surface of carbon black and a segment (B) different in skeletal structure from the segment (A) with carbon black. The carbon black graft polymer, by causing the graft chain thereof to incorporate therein an ethylenically unsaturated double bond and/or a carboxyl group, is enabled to manifest photosensitivity, developability with an alkali, and insulating property and acquire usefulness for a black photocurable resin composition such as, for example, the material for the formation of a black matrix particularly in a color filter. 
Nippon Shokubai Co., Ltd.
G Y B C Y G G G G G G C C
G02F Y10T B41M C09D Y10T G03F G03G G03F G03G G03G G03C C08F C08K
additional additional inventional inventional additional inventional inventional inventional inventional inventional inventional inventional inventional
Yoshinobu Nobuyuki Tatsuhito Hayato Hironobu Mitsuo Yoshikuni Kazuhiro Keiichi
Asako Ando Matsuda Ikeda Toribuchi Kushino Mori Anan Uehara