Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
  • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
  • C07D491/04—Ortho-condensed systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
  • B41M5/132—Chemical colour-forming components; Additives or binders therefor
  • B41M5/136—Organic colour formers, e.g. leuco dyes
  • B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B11/00—Diaryl- or thriarylmethane dyes
  • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
  • C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Color Printing (AREA)
• Plural Heterocyclic Compounds (AREA)
• Heat Sensitive Colour Forming Recording (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21691264

Family Applications (1)

Country Status (7)

Families Citing this family (2)

Family Cites Families (1)

• 1979
  • 1979-12-17 AT AT0794079A patent/AT376615B/en not_active IP Right Cessation
  • 1979-12-17 CS CS798893A patent/CS226702B2/en unknown
  • 1979-12-18 ZA ZA00796843A patent/ZA796843B/en unknown
  • 1979-12-19 HU HU79AE587A patent/HU184042B/en unknown
  • 1979-12-20 BE BE0/198673A patent/BE880765A/en not_active IP Right Cessation
  • 1979-12-20 BE BE0/198674A patent/BE880766A/en not_active IP Right Cessation
  • 1979-12-25 JP JP54170206A patent/JPS5820798B2/en not_active Expired
  • 1979-12-28 PL PL1979220842A patent/PL119521B1/en unknown

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