GB540760A - Improvements in and relating to colour couplers for photographic colour development - Google Patents

Improvements in and relating to colour couplers for photographic colour development

Info

Publication number
GB540760A
GB540760A GB31978/39A GB3197839A GB540760A GB 540760 A GB540760 A GB 540760A GB 31978/39 A GB31978/39 A GB 31978/39A GB 3197839 A GB3197839 A GB 3197839A GB 540760 A GB540760 A GB 540760A
Authority
GB
United Kingdom
Prior art keywords
colour
photographic
development
relating
phenyl
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
GB31978/39A
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.)
NORBERT VANKEIRSBILCK
Gevaert Photo Producten NV
Original Assignee
NORBERT VANKEIRSBILCK
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 IT390064D priority Critical patent/IT390064A/it
Priority to BE490600D priority patent/BE490600A/xx
Priority to BE440012D priority patent/BE440012A/xx
Application filed by NORBERT VANKEIRSBILCK, Gevaert Photo Producten NV filed Critical NORBERT VANKEIRSBILCK
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
Publication of GB540760A publication Critical patent/GB540760A/en
Priority to GB22002/48A priority patent/GB645043A/en
Priority to FR59472D priority patent/FR59472E/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

Abstract

540,760. Photographic colour development. GEVAERT.PHOTO-PRODUCTION, N.V., VERKINDEREN, H., and VANKEIRSBILCK, N. Dec. 11, 1939, No. 31978. [Class 98 (ii)] A colour coupler for colour development has the general formula wherein X is an electronegative organic radical such as an acyl or cyano group, and Y is an organic radical such as aryl. Examples specified are 3-phenyl-5-acetonyl- 1 : 2: 4-oxodiazole and a (3-phenyl-l : 2 : 4-oxodiazolyl-5)-acetonitrile. The colour coupler may be incorporated in the developing solution or in the silver salt emulsion, before or after coating. The usual aromatic amino developing agents may be employed. Specifications 2562/13, [Class 98 (ii)], and 458,664 are referred to.
GB31978/39A 1939-12-11 1939-12-11 Improvements in and relating to colour couplers for photographic colour development Expired GB540760A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT390064D IT390064A (en) 1939-12-11
BE490600D BE490600A (en) 1939-12-11
BE440012D BE440012A (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
GB540760A true GB540760A (en) 1941-10-29

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 After (1)

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

Country Status (6)

Country Link
US (1) US2380809A (en)
BE (2) BE490600A (en)
DE (1) DE870947C (en)
FR (2) FR869169A (en)
GB (2) GB540760A (en)
IT (1) IT390064A (en)

Families Citing this family (10)

* 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
BE591444A (en) * 1959-04-06
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
EP0431374B1 (en) * 1989-11-20 1996-02-14 Fuji Photo Film Co., Ltd. Color coupler for photography and silver halide photographic material comprising the same
MX2018004128A (en) 2015-10-05 2018-05-17 Dsm Ip Assets Bv Oil compositions and methods of making.

Also Published As

Publication number Publication date
BE440012A (en)
GB645043A (en) 1950-10-25
BE490600A (en)
US2380809A (en) 1945-07-31
DE870947C (en) 1953-03-19
IT390064A (en)
FR59472E (en) 1954-05-25
FR869169A (en) 1942-01-26

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