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Title:
ALKYLPHTHALOCYANINE NEAR-INFRARED ABSORBER, AND DISPLAY AND RECORDING MATERIAL CONTAINING SAME
Document Type and Number:
Japanese Patent JPH02138382
Kind Code:
A
Abstract:

NEW MATERIAL:An alkylphthalocyanine near-infrared absorber of formula I (wherein R1, R4, R5, R8, R9, R12, R13 and R16 are each H, an alkyl, an arylmethyl, an alkoxymethyl, an alkylaminomethyl or the like; R2, R3, R6, R7, R10, R11, R14 and R15 are each H, an alkyl, an arylmethyl, an alkoxymethyl, an alkylaminomethyl, a dialkylaminomethyl or the like; Met is two hydrogen atoms, a bivalent metal atom or a trivalent or tetravalent substituted metal atom)

USE: A near-infrared absorber having an absorption in a near-infrared region of 700-800nm and excelling in light resistance, weathering resistance, heat resistance, etc. This absorber can be desirably used in the production of a recording medium and the production of a near-infrared filter, a display material or the like.

PREPARATION: A compound of formula II or III is reacted by heating in the presence of a metallic derivative (e.g., vanadium chloride) and a solvent to obtain a compound of formula I.


Inventors:
Ito, Naoto
Enomoto, Tsuyoshi
Oguchi, Takahisa
Nishizawa, Isao
Application Number:
JP1989000067516
Publication Date:
May 28, 1990
Filing Date:
March 22, 1989
Export Citation:
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Assignee:
MITSUI TOATSU CHEM INC
YAMAMOTO CHEM INC
International Classes:
G02B5/22; B41M5/26; C07D487/22; C09B47/04; C09B47/06; C09B47/10; C09B47/12; C09B47/18; C09B47/20; C09K3/00; C09K19/60; G09F9/35; G11B7/248; (IPC1-7): B41M5/26; C07D487/22; C09B47/10; C09B47/12; C09B47/18; C09B47/20; C09K3/00; G02B5/22; G09F9/35
Domestic Patent References:
JPH02502099A1990-07-12
JPH0243269A1990-02-13



 
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