DIIMONIUM SALT MIXTURES, AMINIUM SALTS MIXTURES AND USE THEREOF

DIIMONIUM SALT MIXTURES, AMINIUM SALTS MIXTURES AND USE THEREOF

A mixture of two or more diimonium salts or aminium salts obtained by oxidizing one or more compounds represented by the general formula (1); near-infrared absorption filters characterized by containing the mixture; and optical information recording media characterized by containing the mixture in t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KITAYAMA, YASUYUKI, YAMAMURA, SHIGEO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:A mixture of two or more diimonium salts or aminium salts obtained by oxidizing one or more compounds represented by the general formula (1); near-infrared absorption filters characterized by containing the mixture; and optical information recording media characterized by containing the mixture in the recording layer: (1) wherein A and B may have additional substituents; R1 and R2 attached to terminal nitrogen atoms of tetrakis(aminophenyl)-phenylenediamine skeleton are different from each other and each substituted or unsubstituted alkyl having 1 to 8 carbon atoms, cycloalkyl, alkenyl, or aryl; and m and n are integers of 0 to 8 satisfying the relationship: m+n = 8.