Title:
BLACK AZO PIGMENT AND PROCESS FOR PRODUCTION THEREOF, COLORED COMPOSITION, COLORING METHOD, AND COLORED ARTICLES
Document Type and Number:
WIPO Patent Application WO/2012/091083
Kind Code:
A1
Abstract:
The present invention is a black azo pigment which has both of the optical properties of a visible light shielding property and an infrared ray transmitting property, and which has a structure that has, in the molecule thereof, at least two azo bonds and at least one 2-hydroxy-11H-benzo[a]-carbazole-3-carboxylic acid amide residue derived from a coupling component, wherein the black azo pigment is characterized by having an average particle diameter of 10-200 nm.
The present invention enables the provision of: a black pigment which exhibits excellent physical properties and color fastness as a pigment, can be used in various use applications, and exhibits both of the optical properties of a visible light shielding property and an infrared ray transmitting property; a process for producing the pigment; a colored composition containing the pigment; and a coloring method and a colored article, in each of which the colored composition is used.
Inventors:
NAKAMURA MICHIEI (JP)
YAMAMIYA SHIRO (JP)
SAKAMOTO SHIGERU (JP)
OKAMOTO HISAO (JP)
MATSUZAKI SATORU (JP)
ITOH HIDEKI (JP)
YAMAMIYA SHIRO (JP)
SAKAMOTO SHIGERU (JP)
OKAMOTO HISAO (JP)
MATSUZAKI SATORU (JP)
ITOH HIDEKI (JP)
Application Number:
PCT/JP2011/080370
Publication Date:
July 05, 2012
Filing Date:
December 28, 2011
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
NAKAMURA MICHIEI (JP)
YAMAMIYA SHIRO (JP)
SAKAMOTO SHIGERU (JP)
OKAMOTO HISAO (JP)
MATSUZAKI SATORU (JP)
ITOH HIDEKI (JP)
NAKAMURA MICHIEI (JP)
YAMAMIYA SHIRO (JP)
SAKAMOTO SHIGERU (JP)
OKAMOTO HISAO (JP)
MATSUZAKI SATORU (JP)
ITOH HIDEKI (JP)
International Classes:
C09B33/147; C09B35/03; C09B35/033; C09B35/037
Domestic Patent References:
| WO2011078163A1 | 2011-06-30 |
Foreign References:
| JPS54155227A | 1979-12-07 | |||
| JPS60247244A | 1985-12-06 | |||
| JPS616653A | 1986-01-13 | |||
| JPS6156351A | 1986-03-22 | |||
| JPS6184653A | 1986-04-30 | |||
| JPS61283665A | 1986-12-13 | |||
| JPS6230166A | 1987-02-09 | |||
| JPS6268855A | 1987-03-28 | |||
| JPS6268856A | 1987-03-28 | |||
| JPS6422969A | 1989-01-25 |
Attorney, Agent or Firm:
KONDO Rieko et al. (JP)
Kondo Toshihide child (JP)
Kondo Toshihide child (JP)
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Claims:
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