BE691306A - - Google Patents

Info

Publication number
BE691306A
BE691306A BE691306DA BE691306A BE 691306 A BE691306 A BE 691306A BE 691306D A BE691306D A BE 691306DA BE 691306 A BE691306 A BE 691306A
Authority
BE
Belgium
Application number
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 BE691306A publication Critical patent/BE691306A/xx

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
BE691306D 1965-12-20 1966-12-16 BE691306A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51483865A 1965-12-20 1965-12-20

Publications (1)

Publication Number Publication Date
BE691306A true BE691306A (xx) 1967-05-29

Family

ID=24048885

Family Applications (1)

Application Number Title Priority Date Filing Date
BE691306D BE691306A (xx) 1965-12-20 1966-12-16

Country Status (9)

Country Link
US (1) US3510308A (xx)
BE (1) BE691306A (xx)
CH (1) CH477708A (xx)
DE (1) DE1572222B1 (xx)
DK (1) DK130436B (xx)
FR (1) FR1505824A (xx)
GB (1) GB1111055A (xx)
NL (1) NL6617881A (xx)
SE (1) SE320881B (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1273746A (en) * 1968-10-03 1972-05-10 Agfa Gevaert Unsaturated photochromic monomers and polymers prepared therefrom
US4010033A (en) * 1973-08-03 1977-03-01 Agence Nationale De Valorisation De La Recherche (Anvar) Photosensitive layer and method of forming a photographic image therefrom
FR2445334A1 (fr) * 1978-12-28 1980-07-25 Issec Labo Physicochimie Procede de reproduction couleur par photodecoloration de complexes de spiropyrannes et/ou merocyanines, et le papier sensible correspondant
IE56890B1 (en) * 1984-12-30 1992-01-15 Scully Richard L Photosensitive composition for direct positive colour photograph
JP3200649B2 (ja) * 1991-03-13 2001-08-20 大塚化学株式会社 遷移金属スピロベンゾピラン錯体、その製造方法及び該錯体からなるフォトクロミック材料
JP3030471B2 (ja) * 1991-03-13 2000-04-10 大塚化学株式会社 インドリノスピロベンゾチオピラン誘導体とその開環型異性体を含むことからなる結晶、その製造方法及び該結晶からなるピエゾクロミック材料
US7316875B2 (en) * 2005-05-06 2008-01-08 Xerox Corporation Photochromic paper with improved bistability

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152903A (en) * 1959-04-30 1964-10-13 Minnesota Mining & Mfg Reproduction system
US3364023A (en) * 1964-02-04 1968-01-16 Ncr Co Formation of silver images from ultraviolet-light-induced benzoindolinospiropyran dye images

Also Published As

Publication number Publication date
FR1505824A (fr) 1967-12-15
CH477708A (fr) 1969-08-31
DE1572222B1 (de) 1970-02-12
DK130436C (xx) 1975-07-21
SE320881B (xx) 1970-02-16
NL6617881A (xx) 1967-06-21
DK130436B (da) 1975-02-17
GB1111055A (en) 1968-04-24
US3510308A (en) 1970-05-05

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: THE NATIONAL CASH REGISTER CY

Effective date: 19841216