CYANINE COMPOUND AND INFRARED-ABSORBING COMPOSITION CONTAINING THE SAME

PURPOSE:To obtain a new cyanine compd. having quinoline nuclei and an infrared-absorbing compsn. excellent in infrared-absorbing characteristics using the compd. CONSTITUTION:This cyanine compsn. is obtd. by compounding a cyanine compd. of the formula [wherein n is 0 or 1; A1 and A2 are each carboxy...

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Hauptverfasser: INAGAKI YOSHIO, SHIMAZAKI MASATO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To obtain a new cyanine compd. having quinoline nuclei and an infrared-absorbing compsn. excellent in infrared-absorbing characteristics using the compd. CONSTITUTION:This cyanine compsn. is obtd. by compounding a cyanine compd. of the formula [wherein n is 0 or 1; A1 and A2 are each carboxylate (-COO) or sulfonate (-SO3); T and T are each 1-5C linear or branched alkylene; G to G are each H, halogen, cyano, methanesulfonyl, methoxycarbonyl, ethoxycarbonyl, 1-4C alkyl, or 1-4C alkoxy; G is H, halogen, methyl, or halomethyl; n is 1 or 2; and M is a cation] with a hydrophilic binder alone or together with fine inorg. particles.