CH473191A - Process for the preparation of 4-arylazo-pyrazolones and their use - Google Patents

Process for the preparation of 4-arylazo-pyrazolones and their use

Info

Publication number
CH473191A
CH473191A CH577266A CH577266A CH473191A CH 473191 A CH473191 A CH 473191A CH 577266 A CH577266 A CH 577266A CH 577266 A CH577266 A CH 577266A CH 473191 A CH473191 A CH 473191A
Authority
CH
Switzerland
Prior art keywords
arylazo
pyrazolones
preparation
Prior art date
Application number
CH577266A
Other languages
Italian (it)
Inventor
Alberto Dr Guzzi
Brunello Dr Mariani
Eugenio Dr Tisselli
Original Assignee
Ferrania Spa
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 Ferrania Spa filed Critical Ferrania Spa
Publication of CH473191A publication Critical patent/CH473191A/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
CH577266A 1965-04-21 1966-04-21 Process for the preparation of 4-arylazo-pyrazolones and their use CH473191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT847865 1965-04-21

Publications (1)

Publication Number Publication Date
CH473191A true CH473191A (en) 1969-05-31

Family

ID=11126746

Family Applications (1)

Application Number Title Priority Date Filing Date
CH577266A CH473191A (en) 1965-04-21 1966-04-21 Process for the preparation of 4-arylazo-pyrazolones and their use

Country Status (2)

Country Link
CH (1) CH473191A (en)
GB (1) GB1134333A (en)

Also Published As

Publication number Publication date
GB1134333A (en) 1968-11-20

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Legal Events

Date Code Title Description
PL Patent ceased