FR2220388A1 - - Google Patents

Info

Publication number
FR2220388A1
FR2220388A1 FR7407095A FR7407095A FR2220388A1 FR 2220388 A1 FR2220388 A1 FR 2220388A1 FR 7407095 A FR7407095 A FR 7407095A FR 7407095 A FR7407095 A FR 7407095A FR 2220388 A1 FR2220388 A1 FR 2220388A1
Authority
FR
France
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.)
Granted
Application number
FR7407095A
Other languages
French (fr)
Other versions
FR2220388B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of FR2220388A1 publication Critical patent/FR2220388A1/fr
Application granted granted Critical
Publication of FR2220388B1 publication Critical patent/FR2220388B1/fr
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
FR7407095A 1973-03-05 1974-03-01 Expired FR2220388B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH318773A CH578432A5 (en) 1973-03-05 1973-03-05

Publications (2)

Publication Number Publication Date
FR2220388A1 true FR2220388A1 (en) 1974-10-04
FR2220388B1 FR2220388B1 (en) 1976-12-10

Family

ID=4250512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407095A Expired FR2220388B1 (en) 1973-03-05 1974-03-01

Country Status (11)

Country Link
JP (1) JPS595438B2 (en)
AR (1) AR201370A1 (en)
AT (1) AT331269B (en)
BE (1) BE811824A (en)
BR (1) BR7401570D0 (en)
CA (1) CA1023146A (en)
CH (1) CH578432A5 (en)
DE (1) DE2409112C2 (en)
FR (1) FR2220388B1 (en)
GB (1) GB1422096A (en)
ZA (1) ZA741382B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415009A1 (en) * 1977-12-15 1979-08-17 Appleton Paper Inc THERMOSENSITIVE RECORDING SUPPORT
FR2438042A1 (en) * 1976-04-27 1980-04-30 Ciba Geigy Ag AZOMETHINE COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS CHROMOGENES
FR2458397A1 (en) * 1979-06-12 1981-01-02 Kores Nordic Danmark THERMOSENSIBLE RECORDING MATERIAL CONSISTING OF COLORLESS CHROMOGEN AND ELECTRON ABSORPTION SUBSTANCE, AND PROCESS FOR PREPARING THE SAME

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5273047A (en) * 1975-12-15 1977-06-18 Tomoegawa Paper Co Ltd Heat sensitive recording paper
US4189171A (en) * 1977-03-01 1980-02-19 Sterling Drug Inc. Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides
CH653353A5 (en) * 1983-05-09 1985-12-31 Ciba Geigy Ag CHROMOGENIC 3,3-BISINDOLYL-4-AZAPHTHALIDE.
DE3440514A1 (en) * 1984-02-14 1985-09-05 Papierfabrik August Koehler AG, 7602 Oberkirch Thermal printing system
US4736027A (en) * 1985-06-17 1988-04-05 Hilton Davis Chemical Co. Indole-phthalide derivatives
US4788285A (en) * 1985-06-17 1988-11-29 Hung William M Indole-phthalide derivatives
US4660060A (en) * 1985-06-17 1987-04-21 The Hilton-Davis Chemical Co. Imaging systems containing 3-(indol-3-yl)-3-(4-substituted aminophenyl)phthalides
EP0266310B1 (en) * 1986-10-28 2001-12-05 Ciba SC Holding AG Chromogenic phthalides
JP2006088645A (en) * 2004-09-27 2006-04-06 Sony Corp Reversible thermal recording medium
JP4575789B2 (en) * 2005-01-17 2010-11-04 パイロットインキ株式会社 Reversible thermochromic microcapsule pigment encapsulating a reversible thermochromic composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509173A (en) * 1967-01-30 1970-04-28 Ncr Co 3,3-bis-(indol-3-yl) phthalides
US3509174A (en) * 1967-01-30 1970-04-28 Ncr Co 3-(indol-3-yl)-phthalides

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE831704C (en) * 1948-07-31 1952-02-18 Ncr Co Recording material for use in a duplicating composition
US2929736A (en) * 1957-07-25 1960-03-22 Ncr Co Heat and pressure responsive record material
DE1251348B (en) * 1964-05-11
US3455721A (en) * 1964-12-21 1969-07-15 Ncr Co Color sensitized record material comprising phenolic resin and acid type mineral
JPS4833712B1 (en) * 1969-05-26 1973-10-16
DE2016375C3 (en) * 1970-04-06 1973-09-27 Sumitomo Chemical Co. Ltd., Osaka (Japan) Process for the preparation of 3,3 bis (p dimethylaminophenyl) -4,5,6 or 7 dimethylaminophthalides
US3843384A (en) * 1971-06-14 1974-10-22 Matsushita Electric Ind Co Ltd Heat-sensitive two color recording paper
JPS5412819B2 (en) * 1971-08-05 1979-05-25
JPS513842B2 (en) * 1972-09-12 1976-02-06
JPS4969335A (en) * 1972-11-08 1974-07-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509173A (en) * 1967-01-30 1970-04-28 Ncr Co 3,3-bis-(indol-3-yl) phthalides
US3509174A (en) * 1967-01-30 1970-04-28 Ncr Co 3-(indol-3-yl)-phthalides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438042A1 (en) * 1976-04-27 1980-04-30 Ciba Geigy Ag AZOMETHINE COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS CHROMOGENES
FR2415009A1 (en) * 1977-12-15 1979-08-17 Appleton Paper Inc THERMOSENSITIVE RECORDING SUPPORT
FR2458397A1 (en) * 1979-06-12 1981-01-02 Kores Nordic Danmark THERMOSENSIBLE RECORDING MATERIAL CONSISTING OF COLORLESS CHROMOGEN AND ELECTRON ABSORPTION SUBSTANCE, AND PROCESS FOR PREPARING THE SAME

Also Published As

Publication number Publication date
DE2409112A1 (en) 1974-09-12
JPS595438B2 (en) 1984-02-04
DE2409112C2 (en) 1983-01-27
CH578432A5 (en) 1976-08-13
AR201370A1 (en) 1975-03-07
BR7401570D0 (en) 1974-12-24
ZA741382B (en) 1975-01-29
GB1422096A (en) 1976-01-21
JPS49121545A (en) 1974-11-20
FR2220388B1 (en) 1976-12-10
BE811824A (en) 1974-09-04
CA1023146A (en) 1977-12-27
AT331269B (en) 1976-08-10
ATA174274A (en) 1975-11-15

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Legal Events

Date Code Title Description
ST Notification of lapse