NEW PHTHALIDE DERIVATIVES

NEW PHTHALIDE DERIVATIVES

A new phthalide derivative useful as a colorless chromogenic material has the following formula:wherein A isR is an alkyl group having 1 to 4 carbon atoms or a propylene group which may form jullolidine ring together with the adjacent benzene ring, and n is 0 or an integer of 1 to 4 whenA is but m i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KANDA, NOBUO, YONESE, NAOKI, KONDO, MITSURU
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COLOUR PRINTING
HETEROCYCLIC COMPOUNDS
LINING MACHINES
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A new phthalide derivative useful as a colorless chromogenic material has the following formula:wherein A isR is an alkyl group having 1 to 4 carbon atoms or a propylene group which may form jullolidine ring together with the adjacent benzene ring, and n is 0 or an integer of 1 to 4 whenA is but m is an integer of 1 to 3 when A is