Porphyrazine dye, and application therefor

Abstract

A porphyrazine dye represented by formula (1), and a dye dispersing composition containing the same. [In formula (1): M represents a metal atom, a metal oxide, a metal hydroxide, a metal halide, or a hydrogen atom; rings A, B, C and D each independently represent formulas (2)-(8) (except where A, B, and C are all (8)); X represents a lower alkyl group, a lower alkoxy group, an amino group, a nitro group, a halogen group, a hydroxy group, a carboxy group, a sulfonic acid group, or a sulfonamide group; Y represents a divalent crosslinking group; Z represents a sulfonic acid group, a carboxy group, a residue from which at least one hydrogen above a nitrogen atom on a primary-secondary amino group has been removed, or a residue from which at least one hydrogen above a nitrogen atom in a heterocyclic ring containing nitrogen has been removed; a and b are each average values; a and b are each 0-12; and the sum of a and b is 0-12].

Description

[0001] This application is a divisional application, the original application number is 201380031619.2, the application date is June 11, 2013, and the invention name is "Porphyrazine Pigment and Its Use". technical field

[0002] The present invention relates to a novel porphyrazine pigment that exhibits excellent absorption in a specific near-infrared region, high transmittance in a visible light region, and does not impair aesthetics, and its use. Background technique

[0003] In recent years, it has been demanded to reduce the load on air-conditioning equipment from the viewpoint of energy saving, global environmental problems, and the like. For example, in the fields of housing and automobiles, there is a heat-ray-shielding glass with a heat-ray-shielding material that can shield heat rays from sunlight on the window glass, which has a suppressing effect on the temperature rise in the room and inside the car. As the heat ray shielding material, a near-infrared absorbing ...

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