GB478983A - 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
GB478983A
GB478983A GB1162237A GB1162237A GB478983A GB 478983 A GB478983 A GB 478983A GB 1162237 A GB1162237 A GB 1162237A GB 1162237 A GB1162237 A GB 1162237A GB 478983 A GB478983 A GB 478983A
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
GB1162237A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB1162237A priority Critical patent/GB478983A/en
Publication of GB478983A publication Critical patent/GB478983A/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
    • G03C7/38—Couplers containing compounds with active methylene groups in rings
    • G03C7/381—Heterocyclic compounds
    • G03C7/3815—Heterocyclic compounds with one heterocyclic ring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Equations are given illustrating the preparation of N-acetyl-2 : 3-naphthindoxyl. The sodium salt of b -naphthylglycine-3-carboxylic acid is reacted with acetic anhydride to give diacetyl-2 : 3-naphthindoxyl, which may be hydrolyzed to N-acetyl-2 : 3-naphthindoxyl.
GB1162237A 1936-04-23 1936-04-23 Improvements in and relating to colour forming developers and processes of colour development Expired GB478983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1162237A GB478983A (en) 1936-04-23 1936-04-23 Improvements in and relating to colour forming developers and processes of colour development

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1162237A GB478983A (en) 1936-04-23 1936-04-23 Improvements in and relating to colour forming developers and processes of colour development

Publications (1)

Publication Number Publication Date
GB478983A true GB478983A (en) 1938-01-24

Family

ID=9989648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1162237A Expired GB478983A (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) GB478983A (en)

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