FR1070244A - Process for preparing 4-arylazo-5-pyrazolones which can be used in particular as color couplers for color photography - Google Patents

Process for preparing 4-arylazo-5-pyrazolones which can be used in particular as color couplers for color photography

Info

Publication number
FR1070244A
FR1070244A FR1070244DA FR1070244A FR 1070244 A FR1070244 A FR 1070244A FR 1070244D A FR1070244D A FR 1070244DA FR 1070244 A FR1070244 A FR 1070244A
Authority
FR
France
Prior art keywords
color
arylazo
pyrazolones
preparing
couplers
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
Other languages
French (fr)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR1070244A publication Critical patent/FR1070244A/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
    • G03C7/333—Coloured coupling substances, e.g. for the correction of the coloured image
    • G03C7/3335—Coloured coupling substances, e.g. for the correction of the coloured image containing an azo chromophore
FR1070244D 1952-01-31 1953-01-31 Process for preparing 4-arylazo-5-pyrazolones which can be used in particular as color couplers for color photography Expired FR1070244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1070244XA 1952-01-31 1952-01-31

Publications (1)

Publication Number Publication Date
FR1070244A true FR1070244A (en) 1954-07-20

Family

ID=22314460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1070244D Expired FR1070244A (en) 1952-01-31 1953-01-31 Process for preparing 4-arylazo-5-pyrazolones which can be used in particular as color couplers for color photography

Country Status (1)

Country Link
FR (1) FR1070244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865751A (en) * 1956-09-18 1958-12-23 Eastman Kodak Co 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865751A (en) * 1956-09-18 1958-12-23 Eastman Kodak Co 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography

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