JPS5619275B2 - - Google Patents

Info

Publication number
JPS5619275B2
JPS5619275B2 JP3047073A JP3047073A JPS5619275B2 JP S5619275 B2 JPS5619275 B2 JP S5619275B2 JP 3047073 A JP3047073 A JP 3047073A JP 3047073 A JP3047073 A JP 3047073A JP S5619275 B2 JPS5619275 B2 JP S5619275B2
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Expired
Application number
JP3047073A
Other languages
Japanese (ja)
Other versions
JPS4914213A (enrdf_load_stackoverflow
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 filed Critical
Publication of JPS4914213A publication Critical patent/JPS4914213A/ja
Publication of JPS5619275B2 publication Critical patent/JPS5619275B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP3047073A 1972-03-22 1973-03-15 Expired JPS5619275B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00237000A US3804855A (en) 1972-03-22 1972-03-22 Naphthalide compounds

Publications (2)

Publication Number Publication Date
JPS4914213A JPS4914213A (enrdf_load_stackoverflow) 1974-02-07
JPS5619275B2 true JPS5619275B2 (enrdf_load_stackoverflow) 1981-05-06

Family

ID=22891915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3047073A Expired JPS5619275B2 (enrdf_load_stackoverflow) 1972-03-22 1973-03-15

Country Status (5)

Country Link
US (1) US3804855A (enrdf_load_stackoverflow)
JP (1) JPS5619275B2 (enrdf_load_stackoverflow)
CA (1) CA1003420A (enrdf_load_stackoverflow)
DE (1) DE2313679C2 (enrdf_load_stackoverflow)
GB (1) GB1368938A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954799A (en) * 1971-01-21 1976-05-04 Polaroid Corporation Protonated indole phthalides and naphthalides
US3862128A (en) * 1971-12-02 1975-01-21 Polaroid Corp Naphthalide indicator dyes
GB1467898A (en) * 1974-04-09 1977-03-23 Ciba Geigy Ag Heterocyclic substituted lactone compounds their manufacture and use
US4020056A (en) * 1975-04-10 1977-04-26 Ncr Corporation Di-vinyl phthalides color formers
US4022771A (en) * 1975-04-10 1977-05-10 Ncr Corporation Aminophenyl lactone compounds containing an ethyleno group
US4189171A (en) * 1977-03-01 1980-02-19 Sterling Drug Inc. Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides
JPS5690031A (en) * 1979-12-21 1981-07-21 Sumitomo Chem Co Ltd Preparation of aromatic aldehyde
AU2001264658A1 (en) * 2000-05-18 2001-11-26 Spectra Systems Corporation Visual indicator for verification of an object

Also Published As

Publication number Publication date
GB1368938A (en) 1974-10-02
DE2313679C2 (de) 1982-06-03
DE2313679A1 (de) 1973-10-04
JPS4914213A (enrdf_load_stackoverflow) 1974-02-07
CA1003420A (en) 1977-01-11
US3804855A (en) 1974-04-16

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