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1. (WO2018180482) INFRARED LIGHT TRANSMITTING COMPOSITION

Pub. No.:    WO/2018/180482    International Application No.:    PCT/JP2018/009875
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 15 00:59:59 CET 2018
IPC: G02B 5/22
B01F 17/52
C08F 299/00
C08L 33/14
C08L 51/00
C08L 53/00
C09B 67/20
C09B 67/22
Applicants: DNP FINE CHEMICALS CO., LTD.
株式会社DNPファインケミカル
Inventors: KIMOTO Hiroki
木本 大貴
Title: INFRARED LIGHT TRANSMITTING COMPOSITION
Abstract:
The present invention addresses the problem of providing an infrared light transmitting composition which has improved transmittance for the near-infrared region, while transmitting almost no light in the visible light region. The problem is solved by an infrared light transmitting composition which contains a colorant, a dispersant and a solvent, and which is characterized in that: at least a red colorant, a blue colorant and a yellow colorant are contained as the colorant; and the dispersant contains a constituent unit that is represented by general formula (1). (In general formula (1), R1 represents a hydrogen atom or a methyl group; A represents a divalent linking group; each of R2 and R3 independently represents a hydrogen atom or a hydrocarbon group which may contain a heteroatom; and R2 and R3 may combine with each other to form a ring structure.)