[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB576891A - Improvements in or relating to colour photography - Google Patents

Improvements in or relating to colour photography

Info

Publication number
GB576891A
GB576891A GB9088/44A GB908844A GB576891A GB 576891 A GB576891 A GB 576891A GB 9088/44 A GB9088/44 A GB 9088/44A GB 908844 A GB908844 A GB 908844A GB 576891 A GB576891 A GB 576891A
Authority
GB
United Kingdom
Prior art keywords
hydroxy
group
cyanacetylamino
amino
prepared
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
GB9088/44A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9088/44A priority Critical patent/GB576891A/en
Priority to US591828A priority patent/US2441491A/en
Publication of GB576891A publication Critical patent/GB576891A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Compounds of the general formula <FORM:0576891/IV/1> wherein the hydroxy group is ortho or para to the cyanacetylamino group and the position para to the hydroxy group is unsubstituted (including the corresponding naphthol and higher homologous compounds) are prepared by reacting together an aminophenol (or aminonaphthol or higher homologous compound) unsubstituted in the para position to the hydroxy group with ethyl cyanacetate. Cyanacet-o-hydroxyanilide is prepared by reacting o-aminophenol and ethyl cyanacetate in hot xylene in the presence of piperidine or other base. Cyanacet-o-hydroxy-p-toluidide is similarly prepared. Similar compounds are prepared from m-aminophenol, b -amino-a -naphthol, 2-amino-5-ethoxyphenol, 2-amino-3-methylphenol, and 2 - amino - 5 - chlorophenol. Specifications 503,825, 551,116, [both in Group XX], 551,117, 554,302 and 556,858, [Group XX], are referred to. The Provisional Specification refers also to the compounds 1-cyanacetylamino-2-hydroxy-4 - ethoxybenzene, 2 - cyanacetylamino - 1 - hydroxynaphthalene and 1-cyanacetylamino-2-hydroxy-6-methylbenzene.
GB9088/44A 1944-05-12 1944-05-12 Improvements in or relating to colour photography Expired GB576891A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9088/44A GB576891A (en) 1944-05-12 1944-05-12 Improvements in or relating to colour photography
US591828A US2441491A (en) 1944-05-12 1945-05-03 Cyanacetylamino phenol color formers for color photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9088/44A GB576891A (en) 1944-05-12 1944-05-12 Improvements in or relating to colour photography

Publications (1)

Publication Number Publication Date
GB576891A true GB576891A (en) 1946-04-25

Family

ID=9865125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9088/44A Expired GB576891A (en) 1944-05-12 1944-05-12 Improvements in or relating to colour photography

Country Status (2)

Country Link
US (1) US2441491A (en)
GB (1) GB576891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507180A (en) * 1947-02-08 1950-05-09 Eastman Kodak Co Cyano acetamino color couplers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486440A (en) * 1946-01-10 1949-11-01 Gen Aniline & Film Corp Production of phenazonium dyestuff images
BE483861A (en) * 1947-07-11
NL148537B (en) * 1948-09-07 Keyes Fibre Co METHOD OF COVERING A PROFILED PART OF AN ARTICLE MAINLY MADE FROM PRESSED PULP WITH THERMOPLASTIC MATERIAL.
DE1041357B (en) * 1957-07-31 1958-10-16 Agfa Ag Process and multilayer material for the production of yellow dye images by color development
DE2241015A1 (en) * 1972-08-21 1974-02-28 Henkel & Cie Gmbh ALPHA-CYANOMETHANESULPHONEAMIDOBENZENE DERIVATIVES

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB458664A (en) * 1935-03-21 1936-12-21 Eastman Kodak Co Improvements in and relating to colour forming developers and processes of colour development
BE424779A (en) * 1936-11-26
US2133937A (en) * 1937-02-15 1938-10-18 Du Pont Film Mfg Corp Color photography
US2303380A (en) * 1937-08-06 1942-12-01 American Mach & Foundry Sewing apparatus
US2220908A (en) * 1938-04-04 1940-11-12 Ilford Ltd Production of colored photographic images by color development
GB518017A (en) * 1938-08-03 1940-02-15 John Hubert Reindorp Improvements in or relating to the colour-development of silver halide photographic emulsions
BE490600A (en) * 1939-12-11
US2350380A (en) * 1940-08-01 1944-06-06 Du Pont Photography
US2328652A (en) * 1941-04-18 1943-09-07 Du Pont Process of color photography and composition thereof
US2367531A (en) * 1942-06-12 1945-01-16 Eastman Kodak Co Acylaminophenol photographic couplers
US2369929A (en) * 1943-03-18 1945-02-20 Eastman Kodak Co Acylamino phenol couplers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507180A (en) * 1947-02-08 1950-05-09 Eastman Kodak Co Cyano acetamino color couplers

Also Published As

Publication number Publication date
US2441491A (en) 1948-05-11

Similar Documents

Publication Publication Date Title
GB1397500A (en) Pyridine oxide azo dyestuffs and dyeing compositions for human hair
GB576891A (en) Improvements in or relating to colour photography
GB1210810A (en) Novel n-substituted anilines and processes for their preparation
GB1043505A (en) Water-soluble disazo-dyestuffs and process for preparing them
GB1005233A (en) New monoazo dyestuffs
GB610569A (en) Improvements in or relating to the production of dyes and the sensitisation of photographic emulsions
ES396690A1 (en) Azo dye-stuffs process for their manufacture and their use
GB564713A (en) Improvements in or relating to the formation of coloured photographic images by colour development
GB672741A (en) Improvements in or relating to coumarin compounds, to methine dyes containing coumarin nuclei and to the preparation of such dyes
GB608208A (en) Process for the preparation of phenthiazine derivatives
GB761728A (en) Photographic elements containing ultraviolet radiation absorbing compounds
GB1124388A (en) Reactive monoazo dyes of the benzene-azo-pyrazolone series and process for their manufacture and use
ES387136A1 (en) Benzodiazepines the preparation thereof and compositions containing the same
GB497698A (en) Improvements in or relating to colour-formers for use in colour photography
GB1110714A (en) New styryl dyestuffs
GB1363691A (en) Benzothiazole derivatives
GB1105007A (en) Nitrone derivatives and processes for preparation thereof
GB960521A (en) Improvements relating to anthraquinone dyestuffs, their production and use
GB840903A (en) New thiazole-monoazo-benzene dyestuffs
GB1025155A (en) 1,8-dihydroxy-anthraquinone-2-phenylthioethers
ES237578A1 (en) Procedure for the preparation of new monozoic colors (Machine-translation by Google Translate, not legally binding)
GB652818A (en) Dibenzanthrone dyestuffs
FR1095011A (en) Use of pyrazolinic derivatives as fluorescent dyes
GB543993A (en) Improvements in or relating to photographic materials
GB1073229A (en) Compounds containing a dicarboximido group