JPS5611594B2 - - Google Patents

Info

Publication number
JPS5611594B2
JPS5611594B2 JP4440373A JP4440373A JPS5611594B2 JP S5611594 B2 JPS5611594 B2 JP S5611594B2 JP 4440373 A JP4440373 A JP 4440373A JP 4440373 A JP4440373 A JP 4440373A JP S5611594 B2 JPS5611594 B2 JP S5611594B2
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
JP4440373A
Other languages
Japanese (ja)
Other versions
JPS49133114A (enExample
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
Priority to JP4440373A priority Critical patent/JPS5611594B2/ja
Priority to US05/461,769 priority patent/US3930671A/en
Priority to GB1737474A priority patent/GB1421103A/en
Priority to DE2418953A priority patent/DE2418953A1/de
Publication of JPS49133114A publication Critical patent/JPS49133114A/ja
Publication of JPS5611594B2 publication Critical patent/JPS5611594B2/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
    • B41M5/124—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles

Landscapes

  • Chemical & Material Sciences (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)
  • Heat Sensitive Colour Forming Recording (AREA)
JP4440373A 1973-04-19 1973-04-19 Expired JPS5611594B2 (enExample)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4440373A JPS5611594B2 (enExample) 1973-04-19 1973-04-19
US05/461,769 US3930671A (en) 1973-04-19 1974-04-17 Color former and pressure-sensitive copying paper
GB1737474A GB1421103A (en) 1973-04-19 1974-04-19 Benzothienofurans and their use as colour-formers for pressure- sensitive recording material
DE2418953A DE2418953A1 (de) 1973-04-19 1974-04-19 1,3-dihydro-l-oxo-benzo- (eckige klammer auf) b (eckige klammer zu) -thieno- (eckige klammer auf) 2,3-c (eckige klammer zu) furanderivate und diese enthaltende druckempfindliche kopierpapiere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4440373A JPS5611594B2 (enExample) 1973-04-19 1973-04-19

Publications (2)

Publication Number Publication Date
JPS49133114A JPS49133114A (enExample) 1974-12-20
JPS5611594B2 true JPS5611594B2 (enExample) 1981-03-16

Family

ID=12690531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4440373A Expired JPS5611594B2 (enExample) 1973-04-19 1973-04-19

Country Status (4)

Country Link
US (1) US3930671A (enExample)
JP (1) JPS5611594B2 (enExample)
DE (1) DE2418953A1 (enExample)
GB (1) GB1421103A (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331854A (en) * 1964-12-14 1967-07-18 American Cyanamid Co Novel furan and thiophene compounds
IE33221B1 (en) * 1968-07-15 1974-04-17 Fuji Photo Film Co Ltd Pressure-sensitive copying paper
US3849164A (en) * 1970-11-16 1974-11-19 Ncr Pressure-sensitive record unit comprising a mixture of two chromogenic compounds

Also Published As

Publication number Publication date
US3930671A (en) 1976-01-06
GB1421103A (en) 1976-01-14
JPS49133114A (enExample) 1974-12-20
DE2418953A1 (de) 1974-11-07

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