Title:
PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT COLORING AGENT, AND COLORING AGENT FOR COLOR FILTER
Document Type and Number:
Japanese Patent JP2009029886
Kind Code:
A
Abstract:
To provide a pigment dispersant, which prevents aggregation of pigment particles dispersed in a coloring agent such as ink, has excellent fluidity, and allows prevention of generation of foreign matter in a coating film during manufacturing of a color filter.
The pigment dispersant comprises a compound represented by the general formula (1) or a quaternary ammonium salt, amine salt or metal salt thereof, wherein X is a methyl group, ethyl group, tert-butyl group, phenyl group, N,N-dimethylamino group, trifluoromethyl group or cyano group, n is the number of average introduction number of sulfonic groups to the compound, and represents 0.5 to 4.
Inventors:
YANAGIMOTO HIROMITSU
ICHIYANAGI TOSHIYUKI
KONO TOSHIO
ICHIYANAGI TOSHIYUKI
KONO TOSHIO
Application Number:
JP2007193851A
Publication Date:
February 12, 2009
Filing Date:
July 25, 2007
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM
International Classes:
C09B67/20; C09B1/22; C09B33/048; C09B57/00; C09D11/00; C09D17/00
Domestic Patent References:
| JPS62149759A | 1987-07-03 | |||
| JPH07196884A | 1995-08-01 | |||
| JPH03210375A | 1991-09-13 | |||
| JPS62295966A | 1987-12-23 | |||
| JPH06279700A | 1994-10-04 | |||
| JPS59227951A | 1984-12-21 |
Attorney, Agent or Firm:
Toshieko Kondo
Katsuhiro Yoshida
Katsuji Kajiwara
Katsuhiro Yoshida
Katsuji Kajiwara