Azo-compounds and dye polarizing films containing them

An azo-compound, free acid form of which is represented by the following formula (I): wherein A and B represent, independently with each other, a phenyl having one or two groups selected from sulfo and carboxyl or a naphthyl having 1 to 3 sulfos; R1, R2, R3, R4, R5 and R6 represent, independently wi...

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Bibliographische Detailangaben
Hauptverfasser:	KAYANE YUTAKA, TAGUMA AKIHIRO, HAYASHI NARUTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES
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Beschreibung
Zusammenfassung:	An azo-compound, free acid form of which is represented by the following formula (I): wherein A and B represent, independently with each other, a phenyl having one or two groups selected from sulfo and carboxyl or a naphthyl having 1 to 3 sulfos; R1, R2, R3, R4, R5 and R6 represent, independently with each other, hydrogen, lower alkyl or lower alkoxy; and X represents -N=N- or -NHCO-, and a dye polarizing film containing the azo-compound in a polarizing film base, which exhibits a high polarizing performance and is excellent in durability and light fastness, are provided.