GB645043A - Improvements in or relating to the production of colour photographic images - Google Patents

Improvements in or relating to the production of colour photographic images

Info

Publication number
GB645043A
GB645043A GB22002/48A GB2200248A GB645043A GB 645043 A GB645043 A GB 645043A GB 22002/48 A GB22002/48 A GB 22002/48A GB 2200248 A GB2200248 A GB 2200248A GB 645043 A GB645043 A GB 645043A
Authority
GB
United Kingdom
Prior art keywords
oxodiazole
tolyl
acetonyl
relating
production
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
GB22002/48A
Inventor
Philibert Leopold Joseph Merck
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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
Priority to BE440012D priority Critical patent/BE440012A/xx
Priority to BE490600D priority patent/BE490600A/xx
Priority to IT390064D priority patent/IT390064A/it
Priority to GB31978/39A priority patent/GB540760A/en
Priority to DEG1238D priority patent/DE870947C/en
Priority to FR869169D priority patent/FR869169A/en
Priority to US389222A priority patent/US2380809A/en
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Priority to GB22002/48A priority patent/GB645043A/en
Priority to FR59472D priority patent/FR59472E/en
Publication of GB645043A publication Critical patent/GB645043A/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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Thiazole And Isothizaole Compounds (AREA)

Abstract

3 - p - Tolyl - 5 - a - bromoacetonyl - 1 : 2 : 4 - oxodiazole and 3-p-tolyl-5-a : a -dibromoacetonyl-1 : 2 : 4-oxodiazole are prepared by adding ether solutions of bromine to an ether solution of 3 - p - tolyl - 5 - acetonyl - 1 : 2 : 4 - oxodiazole. 3 - p - Tolyl - 5- p - nitrobenzoylbromomethyl - 1 : 2 : 4-oxodiazole is similarly prepared. a : a 1 - Methenyl - bis - (3 - phenyl - 5 - acetonyl-1 : 2 : 4-oxodiazole) is prepared by refluxing together 3-phenyl-5-acetonyl-1 : 2 : 4-oxodiazole, HCl, and aqueous formaldehyde. a : a 1-Methenyl - bis - (3 - p - tolyl - 5 - acetonyl - 1 : 2 : - 4 oxodiazole) is similarly prepared. Specification 540,760, [Group XX], is referred to.
GB22002/48A 1939-12-11 1948-08-20 Improvements in or relating to the production of colour photographic images Expired GB645043A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE440012D BE440012A (en) 1939-12-11
BE490600D BE490600A (en) 1939-12-11
IT390064D IT390064A (en) 1939-12-11
GB31978/39A GB540760A (en) 1939-12-11 1939-12-11 Improvements in and relating to colour couplers for photographic colour development
DEG1238D DE870947C (en) 1939-12-11 1940-12-11 Process for producing color photographic images by coloring development
FR869169D FR869169A (en) 1939-12-11 1941-01-11 Copulant enhancements for color development
US389222A US2380809A (en) 1939-12-11 1941-04-18 Color couplers for photographic color development
GB22002/48A GB645043A (en) 1939-12-11 1948-08-20 Improvements in or relating to the production of colour photographic images
FR59472D FR59472E (en) 1939-12-11 1949-08-18 Copulant enhancements for color development

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB31978/39A GB540760A (en) 1939-12-11 1939-12-11 Improvements in and relating to colour couplers for photographic colour development
GB22002/48A GB645043A (en) 1939-12-11 1948-08-20 Improvements in or relating to the production of colour photographic images

Publications (1)

Publication Number Publication Date
GB645043A true GB645043A (en) 1950-10-25

Family

ID=26255644

Family Applications (2)

Application Number Title Priority Date Filing Date
GB31978/39A Expired GB540760A (en) 1939-12-11 1939-12-11 Improvements in and relating to colour couplers for photographic colour development
GB22002/48A Expired GB645043A (en) 1939-12-11 1948-08-20 Improvements in or relating to the production of colour photographic images

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB31978/39A Expired GB540760A (en) 1939-12-11 1939-12-11 Improvements in and relating to colour couplers for photographic colour development

Country Status (6)

Country Link
US (1) US2380809A (en)
BE (2) BE440012A (en)
DE (1) DE870947C (en)
FR (2) FR869169A (en)
GB (2) GB540760A (en)
IT (1) IT390064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227554A (en) * 1959-04-06 1966-01-04 Eastman Kodak Co Photographic elements and processes utilizing mercaptan-forming couplers

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB576891A (en) * 1944-05-12 1946-04-25 John David Kendall Improvements in or relating to colour photography
FR253100A (en) * 1947-11-26
BE555915A (en) * 1956-03-23
BE625533A (en) * 1961-12-05
CH627562A5 (en) 1977-04-29 1982-01-15 Ciba Geigy Ag COLOR PHOTOGRAPHIC MATERIAL.
US4871652A (en) * 1988-09-07 1989-10-03 Eastman Kodak Company Photographic silver halide material and process
JPH03200961A (en) * 1989-10-03 1991-09-02 Fuji Photo Film Co Ltd Silver halide color photographic sensitive material
DE69025381T2 (en) * 1989-11-20 1996-06-13 Fuji Photo Film Co Ltd Color coupler for photography and silver halide photographic material containing the same
US20190071618A1 (en) 2015-10-05 2019-03-07 Dsm Ip Assets, B.V. Oil compositions and methods of making

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227554A (en) * 1959-04-06 1966-01-04 Eastman Kodak Co Photographic elements and processes utilizing mercaptan-forming couplers

Also Published As

Publication number Publication date
FR869169A (en) 1942-01-26
DE870947C (en) 1953-03-19
BE440012A (en)
US2380809A (en) 1945-07-31
GB540760A (en) 1941-10-29
FR59472E (en) 1954-05-25
IT390064A (en)
BE490600A (en)

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