Title:
DIKETOPYRROLOPYRROLE COMPOUND OR SALT THEREOF, AND PIGMENT COMPOSITION COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2017171585
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pigment composition stable as a colorant of a resist for a color filter or the like, which is prepared into fine particles and into a high concentration from a pigment composition comprising an organic pigment without inducing aggregation, sedimentation, increase in the viscosity with time, or the like.SOLUTION: The present invention provides a diketopyrrolopyrrole compound represented by formula (1) or a salt thereof. In formula (1), Rand Reach independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and Rand Rrepresent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a sulfoalkyl group having 1 to 4 carbon atoms, or a carboxyalkyl group having 1 to 4 carbon atoms.SELECTED DRAWING: None
Inventors:
YOSHIMOTO TAKASHI
Application Number:
JP2016056657A
Publication Date:
September 28, 2017
Filing Date:
March 22, 2016
Export Citation:
Assignee:
NIPPON KAYAKU KK
International Classes:
C07D487/04; C09B57/00; C09B67/20; C09B67/46; C09D11/326; C09D17/00