GB478933A - Improvements in and relating to colour forming developers and processes of colour development - Google Patents

Improvements in and relating to colour forming developers and processes of colour development

Info

Publication number
GB478933A
GB478933A GB1435137A GB1435137A GB478933A GB 478933 A GB478933 A GB 478933A GB 1435137 A GB1435137 A GB 1435137A GB 1435137 A GB1435137 A GB 1435137A GB 478933 A GB478933 A GB 478933A
Authority
GB
United Kingdom
Prior art keywords
colour
relating
processes
development
forming developers
Prior art date
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
GB1435137A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB478933A publication Critical patent/GB478933A/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Luminescent Compositions (AREA)

Abstract

b -Naphthoylacetone is prepared by the condensation of b -naphthyl methyl ketone with ethyl acetate in the presence of sodium ethylate. Ethyl furoylacetate is prepared by the condensation of ethyl furoate with ethyl acetate in the presence of powdered sodium.
GB1435137A 1936-04-23 1936-04-23 Improvements in and relating to colour forming developers and processes of colour development Expired GB478933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1435136 1936-04-23

Publications (1)

Publication Number Publication Date
GB478933A true GB478933A (en) 1938-01-24

Family

ID=10039624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1435137A Expired GB478933A (en) 1936-04-23 1936-04-23 Improvements in and relating to colour forming developers and processes of colour development

Country Status (1)

Country Link
GB (1) GB478933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552355A (en) * 1947-08-06 1951-05-08 Gen Aniline & Film Corp Diazotype layers having organic esters and nitriles containing an active methylene group as azo components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552355A (en) * 1947-08-06 1951-05-08 Gen Aniline & Film Corp Diazotype layers having organic esters and nitriles containing an active methylene group as azo components

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