JP2564575B

JP2564575B

NEW MATERIAL:A compound shown by formula I {R1-R4 are lower alkyl; R5 is group shown by formula II [R8 and R9 are alkoxy or group shown by formula III (m is 0 or 1; R10 is H, alkyl or alkoxyl)]: R6 and R7 are H or lower alkyl}. EXAMPLE:Bis(p-dimethylaminostyryl)-2,5-dimethoxysulfonylmethane. USE:Nea...

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Bibliographische Detailangaben
Hauptverfasser: KODERA KAORU, NAKADA KATSUHIRO, MYAZAKI OSAMU, HAYAKAWA KUNIO
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
COLOUR PRINTING
DYES
LAKES
LINING MACHINES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PERFORMING OPERATIONS
POLISHES
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Beschreibung
Zusammenfassung:NEW MATERIAL:A compound shown by formula I {R1-R4 are lower alkyl; R5 is group shown by formula II [R8 and R9 are alkoxy or group shown by formula III (m is 0 or 1; R10 is H, alkyl or alkoxyl)]: R6 and R7 are H or lower alkyl}. EXAMPLE:Bis(p-dimethylaminostyryl)-2,5-dimethoxysulfonylmethane. USE:Near infrared absorbing leuco dye in heat-sensitive recording and pressure- sensitive recording. PREPARATION:A compound shown by formula IV (X is anion of halogen or perchloric acid) is heated with a compound shown by the formula NaSO2-R5 in a mixed solvent of methanol/acetic acid.