GB727693A - New colour-formers for use in colour photography - Google Patents

New colour-formers for use in colour photography

Info

Publication number
GB727693A
GB727693A GB2919952A GB2919952A GB727693A GB 727693 A GB727693 A GB 727693A GB 2919952 A GB2919952 A GB 2919952A GB 2919952 A GB2919952 A GB 2919952A GB 727693 A GB727693 A GB 727693A
Authority
GB
United Kingdom
Prior art keywords
hydroxy
methyl
naphthoyl
prepared
colour
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
GB2919952A
Inventor
George Whiteley Kitchingman
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Priority to BE524352D priority Critical patent/BE524352A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2919952A priority patent/GB727693A/en
Priority to FR1087166D priority patent/FR1087166A/en
Publication of GB727693A publication Critical patent/GB727693A/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
    • G03C7/305—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers
    • G03C7/30511—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers characterised by the releasing group
    • G03C7/30517—2-equivalent couplers, i.e. with a substitution on the coupling site being compulsory with the exception of halogen-substitution
    • G03C7/30523—Phenols or naphtols couplers
    • 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
    • G03C7/34—Couplers containing phenols

Landscapes

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

Abstract

Compounds of the general formula <FORM:0727693/IV (b)/1> wherein R1 is an alkyl radical containing at least 5 carbon atoms and R2 is an alkyl radical containing not more than 4 carbon atoms, are prepared by sulphonating the corresponding 1-hydroxy-2-naphthoylamides, themselves prepared by acylating the corresponding secondary amines with an acylating derivative of 1-hydroxy-2-naphthoic acid, e.g. the anhydride or phenyl ester. 1 - Hydroxy - 4 - sulpho - 2-naphthoyl - N - methyl: N - octadecylamide (sodium salt) is prepared by stirring 1-hydroxy-2 - naphthoyl - N - methyl: N - octadecylamide with 100 per cent sulphuric acid at 50 DEG C., and pouring into a mixture of brine and ice. 1-Hydroxy - 4 - sulpho - 2 - naphthoyl - N - methyl:-N - cetylamide (sodium salt) is similarly prepared. 1 - Hydroxy - 2 - naphthoyl - N - methyl: N-octadecylamide is prepared by heating together at 160-170 DEG C. under reduced pressure N-methyl: N - octadecylamine and phenyl 1-hydroxy-2-naphthoate. 1-Hydroxy-2-naphthoyl - N - methyl: N - cetylamide is similarly prepared.
GB2919952A 1952-11-19 1952-11-19 New colour-formers for use in colour photography Expired GB727693A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE524352D BE524352A (en) 1952-11-19
GB2919952A GB727693A (en) 1952-11-19 1952-11-19 New colour-formers for use in colour photography
FR1087166D FR1087166A (en) 1952-11-19 1953-11-14 Dye formers for color photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2919952A GB727693A (en) 1952-11-19 1952-11-19 New colour-formers for use in colour photography

Publications (1)

Publication Number Publication Date
GB727693A true GB727693A (en) 1955-04-06

Family

ID=10287728

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2919952A Expired GB727693A (en) 1952-11-19 1952-11-19 New colour-formers for use in colour photography

Country Status (3)

Country Link
BE (1) BE524352A (en)
FR (1) FR1087166A (en)
GB (1) GB727693A (en)

Also Published As

Publication number Publication date
FR1087166A (en) 1955-02-22
BE524352A (en)

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