BE443050A - - Google Patents

Info

Publication number
BE443050A
BE443050A BE443050DA BE443050A BE 443050 A BE443050 A BE 443050A BE 443050D A BE443050D A BE 443050DA BE 443050 A BE443050 A BE 443050A
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.)
Publication of BE443050A publication Critical patent/BE443050A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/36—Couplers containing compounds with active methylene groups
    • G03C7/38—Couplers containing compounds with active methylene groups in rings
    • G03C7/384—Couplers containing compounds with active methylene groups in rings in pyrazolone rings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
BE443050D 1940-10-19 BE443050A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0068059 1940-10-19

Publications (1)

Publication Number Publication Date
BE443050A true BE443050A (xx)

Family

ID=7196825

Family Applications (1)

Application Number Title Priority Date Filing Date
BE443050D BE443050A (xx) 1940-10-19

Country Status (4)

Country Link
US (1) US2348463A (xx)
BE (1) BE443050A (xx)
CH (1) CH223793A (xx)
FR (1) FR884055A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710871A (en) * 1951-12-05 1955-06-14 Eastman Kodak Co Preparation of 5-pyrazolone diamides

Also Published As

Publication number Publication date
FR884055A (fr) 1943-08-02
US2348463A (en) 1944-05-09
CH223793A (de) 1942-10-15

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