GB478345A - Improvements relating to photographic developers - Google Patents

Improvements relating to photographic developers

Info

Publication number
GB478345A
GB478345A GB13279/36A GB1327936A GB478345A GB 478345 A GB478345 A GB 478345A GB 13279/36 A GB13279/36 A GB 13279/36A GB 1327936 A GB1327936 A GB 1327936A GB 478345 A GB478345 A GB 478345A
Authority
GB
United Kingdom
Prior art keywords
amino
compounds
colour
development
ring
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
GB13279/36A
Other languages
English (en)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB478345A publication Critical patent/GB478345A/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
    • G03C7/407—Development processes or agents therefor
    • G03C7/413—Developers
    • G03C7/4136—Developers p-Phenylenediamine or derivatives thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Indole Compounds (AREA)
GB13279/36A 1936-04-23 1936-05-11 Improvements relating to photographic developers Expired GB478345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0054850 1936-04-23

Publications (1)

Publication Number Publication Date
GB478345A true GB478345A (en) 1938-01-11

Family

ID=7193989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13279/36A Expired GB478345A (en) 1936-04-23 1936-05-11 Improvements relating to photographic developers

Country Status (4)

Country Link
US (1) US2163820A (enrdf_load_stackoverflow)
BE (1) BE421135A (enrdf_load_stackoverflow)
FR (1) FR820865A (enrdf_load_stackoverflow)
GB (1) GB478345A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596978A (en) * 1947-09-17 1952-05-20 Searle & Co 8-hydroxy-1, 2, 3, 4-tetrahydroquinoline as a silver halide developer
US2566259A (en) * 1948-09-25 1951-08-28 Eastman Kodak Co 8-alkyl sulfonamidoethyl-n-substituted saturated heterocyclic developers
FR2257580B1 (enrdf_load_stackoverflow) * 1974-01-10 1977-06-10 Kodak Pathe
US4845019A (en) * 1986-06-06 1989-07-04 Visicon Laboratories, Inc. Method for exposing and developing photosensitive materials

Also Published As

Publication number Publication date
FR820865A (fr) 1937-11-20
BE421135A (enrdf_load_stackoverflow)
US2163820A (en) 1939-06-27

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