IN139665B - - Google Patents

Info

Publication number
IN139665B
IN139665B IN356/CAL/73A IN356CA1973A IN139665B IN 139665 B IN139665 B IN 139665B IN 356CA1973 A IN356CA1973 A IN 356CA1973A IN 139665 B IN139665 B IN 139665B
Authority
IN
India
Application number
IN356/CAL/73A
Other languages
English (en)
Inventor
Nigel Hughes
A Renfrew
Original Assignee
Wiggins Teape Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wiggins Teape Ltd filed Critical Wiggins Teape Ltd
Publication of IN139665B publication Critical patent/IN139665B/en

Links

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
    • C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
IN356/CAL/73A 1972-02-21 1973-02-17 IN139665B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB784872A GB1412293A (en) 1972-02-21 1972-02-21 Fluoran compounds and their use in pressure-sensitive copying paper

Publications (1)

Publication Number Publication Date
IN139665B true IN139665B (fr) 1976-07-17

Family

ID=9840949

Family Applications (1)

Application Number Title Priority Date Filing Date
IN356/CAL/73A IN139665B (fr) 1972-02-21 1973-02-17

Country Status (13)

Country Link
US (1) US3837889A (fr)
JP (1) JPS4894731A (fr)
AR (1) AR193580A1 (fr)
AU (1) AU472012B2 (fr)
BE (1) BE795746A (fr)
BR (1) BR7301278D0 (fr)
DE (1) DE2308624A1 (fr)
ES (1) ES411827A1 (fr)
FR (1) FR2173102B1 (fr)
GB (1) GB1412293A (fr)
IN (1) IN139665B (fr)
IT (1) IT980489B (fr)
NL (1) NL7302321A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138245B2 (fr) * 1973-05-22 1976-10-20
US3929825A (en) * 1974-04-18 1975-12-30 Mead Corp Pyrazoloxanthene compounds and process for producing same
GB1561230A (en) * 1976-02-23 1980-02-13 Sankio Chemical Co Ltd Aminothiofluoran compounds process for the production thereof and recording elements containing the same
US4351768A (en) * 1977-03-01 1982-09-28 Sterling Drug Inc. 2-[(3-Indolyl)carbonyl]-4/5-carboxybenzoic acids
JPS61215085A (ja) * 1985-03-20 1986-09-24 Fuji Photo Film Co Ltd 感圧記録材料
EP0340169B1 (fr) * 1988-04-27 1994-11-30 Ciba-Geigy Ag Composés chromogènes lactoniques de benzopyrano-2H-pyrazole

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553291A (fr) * 1967-01-27 1969-01-10
US3509173A (en) * 1967-01-30 1970-04-28 Ncr Co 3,3-bis-(indol-3-yl) phthalides
US3649649A (en) * 1967-07-10 1972-03-14 Nisso Kako Co Ltd Fluoran derivatives and preparation thereof
JPS4816202B1 (fr) * 1969-12-05 1973-05-21
DE2036817A1 (de) * 1970-07-24 1972-01-27 Farbwerke Hoechst AG vormals Meister Lucius & Brüning, 6000 Frankfurt Neue farbbildende Lactone, Verfahren zu ihrer Herstellung und ihre Anwendung bei druckempfindlichen Aufzeichnungs- und Vervielfältigungsmaterial
US3746562A (en) * 1970-11-16 1973-07-17 Ncr Mark forming record materials

Also Published As

Publication number Publication date
IT980489B (it) 1974-09-30
BR7301278D0 (pt) 1974-05-16
AR193580A1 (es) 1973-04-30
AU5237773A (en) 1974-08-22
FR2173102B1 (fr) 1977-04-29
NL7302321A (fr) 1973-08-23
GB1412293A (en) 1975-11-05
FR2173102A1 (fr) 1973-10-05
AU472012B2 (en) 1976-05-13
JPS4894731A (fr) 1973-12-06
US3837889A (en) 1974-09-24
ES411827A1 (es) 1976-09-01
DE2308624A1 (de) 1973-09-06
BE795746A (fr) 1973-08-21

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