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Patent Searching and Data


Title:
NEAR INFRARED TRANSMITTABLE BLACK AZO PIGMENT AND PIGMENT COMPOSITION
Document Type and Number:
Japanese Patent JP2002256165
Kind Code:
A
Abstract:

To provide a black azo pigment which transmits near infrared rays with a high transmittance, and a pigment composition.

The near infrared transmittable black azo pigment is represented by formula 1 (wherein R is one or more groups to be selected from 1-3C lower alkyl and lower alkoxy groups; and n is an integer of 1-5, and in the case of n≥2, R may be the same or different) and has a crystalline morphology of a leaf ribbon, and the pigment composition containing the pigment is provided.


Inventors:
Zama, Yoshiyuki
Okamoto, Hisao
Yanagimoto, Hiromitsu
Yamamiya, Shiro
Abe, Yoshio
Nakamura, Michiei
Application Number:
JP2001000330819
Publication Date:
September 11, 2002
Filing Date:
October 29, 2001
Export Citation:
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Assignee:
DAINICHISEIKA COLOR & CHEM MFG CO LTD
International Classes:
C09B56/02; C09B67/02; C09B67/20; C09B67/48; (IPC1-7): C09B56/02; C09B67/02; C09B67/20; C09B67/48