DIIMONIUM SALT COMPOUND, AND NEAR-IR ABSORBING FILTER AND OPTICAL INFORMATION RECORDING MEDIUM USING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a near-IR absorbing filter having excellent heat resistance. SOLUTION: The filter contains a compound expressed by formula (1), wherein each of R1to R8represents a branched chain alkyl group, however, not all of R1to R8are iso-butyl groups, a ring A and a ring B may...

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Hauptverfasser: YAMAMURA SHIGEO, KITAYAMA YASUYUKI
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creator YAMAMURA SHIGEO
KITAYAMA YASUYUKI
description PROBLEM TO BE SOLVED: To provide a near-IR absorbing filter having excellent heat resistance. SOLUTION: The filter contains a compound expressed by formula (1), wherein each of R1to R8represents a branched chain alkyl group, however, not all of R1to R8are iso-butyl groups, a ring A and a ring B may have a substituent, and X represents an anion necessary to neutralize electric charges. COPYRIGHT: (C)2005,JPO&NCIPI
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SOLUTION: The filter contains a compound expressed by formula (1), wherein each of R1to R8represents a branched chain alkyl group, however, not all of R1to R8are iso-butyl groups, a ring A and a ring B may have a substituent, and X represents an anion necessary to neutralize electric charges. 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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
LAKES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC CHEMISTRY
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PHYSICS
POLISHES
title DIIMONIUM SALT COMPOUND, AND NEAR-IR ABSORBING FILTER AND OPTICAL INFORMATION RECORDING MEDIUM USING THE COMPOUND
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