[EN] NEW PYRIDAZIN-3(2H)-ONE DERIVATIVES<br/>[FR] NOUVEAUX DERIVES DE PYRIDAZIN-3(2H)-ONE
申请人:ALMIRALL PRODESFARMA SA
公开号:WO2004058729A1
公开(公告)日:2004-07-15
Pyridazin-3(2H)-one derivatives of formula (I) are found to inhibit PDE-4:, wherein R1, R2 and R4 are organic radicals, R3 is a cyclic group, and R5 is an ester or an aryl or heteroaryl group.
Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.