Title:
NOVEL COPPER PHTHALOCYANINE PIGMENT AND PROCESS FOR PRODUCING COPPER PHTHALOCYANINE FINE PARTICLES
Document Type and Number:
WIPO Patent Application WO/2010/035861
Kind Code:
A1
Abstract:
Disclosed is a copper phthalocyanine pigment comprising copper phthalocyanine that is in an α-type crystal form and is superior in properties to ε-type copper phthalocyanine under specific conditions. Also disclosed is a process for producing copper phthalocyanine fine particles.
The copper phthalocyanine pigment comprises copper phthalocyanine that is in an α-type crystal form and exhibits a transmission spectrum at 380 to 780 nm that has a highest transmittance wavelength (λmax) of less than 478 nm.
Inventors:
ENOMURA MASAKAZU (JP)
Application Number:
PCT/JP2009/066900
Publication Date:
April 01, 2010
Filing Date:
September 29, 2009
Export Citation:
Assignee:
M TECH CO LTD (JP)
ENOMURA MASAKAZU (JP)
ENOMURA MASAKAZU (JP)
International Classes:
C09B67/50; B01F27/93; C09B67/02; C09B67/04; C09B67/08; C09B67/12; C09B67/20; C09B67/48
Foreign References:
| JP2002189119A | 2002-07-05 | |||
| JP2004049957A | 2004-02-19 | |||
| JP2004252443A | 2004-09-09 | |||
| JP2008208277A | 2008-09-11 | |||
| JP2008233620A | 2008-10-02 | |||
| JP2005306841A | 2005-11-04 | |||
| JP2007332317A | 2007-12-27 | |||
| JP2004049957A | 2004-02-19 |
Other References:
B. N. ACHAR, K. S. LOKESH, J. SOLID STATE CHEM., vol. 117, 2004, pages 1987
J. H. SHARP, M. ABKOWITZ, J. PHYS. CHEM., vol. 77, 1972, pages 477
H. XIA, M. NOGAMI, OPT. MATER., vol. 15, 2000, pages 93
H. KUHN, J. CHEM. PHYS., vol. 17, 1949, pages 1198
J. H. SHARP, M. ABKOWITZ, J. PHYS. CHEM., vol. 77, 1972, pages 477
H. XIA, M. NOGAMI, OPT. MATER., vol. 15, 2000, pages 93
H. KUHN, J. CHEM. PHYS., vol. 17, 1949, pages 1198
Attorney, Agent or Firm:
SAMEJIMA TAKENOBU (JP)
Takenobu Sameshima (JP)
Takenobu Sameshima (JP)
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