Classifications

• • 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
  • C09B11/10—Amino derivatives of triarylmethanes
  • C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
• • 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
  • B41M5/1455—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring characterised by fluoran compounds

Applications Claiming Priority (1)

Publications (1)

Family

ID=9840994

Family Applications (1)

Country Status (8)

• 0
  • BE BE795747D patent/BE795747A/en unknown
• 1972
  • 1972-02-21 GB GB785072A patent/GB1420331A/en not_active Expired
• 1973
  • 1973-02-20 IT IT6742373A patent/IT984384B/en active
  • 1973-02-20 JP JP1981573A patent/JPS4896624A/ja active Pending
  • 1973-02-20 ES ES411828A patent/ES411828A1/en not_active Expired
  • 1973-02-21 DE DE19732308638 patent/DE2308638A1/en active Pending
  • 1973-02-21 BR BR129073A patent/BR7301290D0/en unknown
  • 1973-02-21 FR FR7306078A patent/FR2173103A1/fr not_active Withdrawn
• 1975
  • 1975-10-27 ES ES75442128A patent/ES442128A1/en not_active Expired

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