GB300970A - - Google Patents

Info

Publication number
GB300970A
GB300970A GB3422828A GB3422828A GB300970A GB 300970 A GB300970 A GB 300970A GB 3422828 A GB3422828 A GB 3422828A GB 3422828 A GB3422828 A GB 3422828A GB 300970 A GB300970 A GB 300970A
Authority
GB
United Kingdom
Prior art keywords
oxybenzene
oxyethylamino
developing
solutions
nucleal
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
GB3422828A
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
Priority claimed from DEI29537D external-priority patent/DE454839C/en
Priority claimed from DEI31254D external-priority patent/DE486772C/en
Priority claimed from DEI32645D external-priority patent/DE487788C/en
Priority claimed from DEI32719D external-priority patent/DE467818C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB300970A publication Critical patent/GB300970A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indole Compounds (AREA)

Abstract

300,970. I. G. Farbenindustrie Akt.- Ges. Nov. 21, 1927, [Convention date]. Addition to 280,873. Developing.-The active agent in the developing solution comprises an N-mono-oxyethyl derivative of a nucleal substitution product or a homologue of 4-amino-1-oxybenzene, excepting derivatives containing a nitro-group. Development proceeds without formation of fog, even in solutions not containing potassium bromide. Examples are described of developing solutions containing (1) the sulphate of 4-oxyethylamino-2- chloro-1-oxybenzene, (2) the oxalate of 4-oxyethylamino-3-methyl-1-oxybenzene, and (3) 4-oxyethylamino-1-oxybenzene-2-carboxylic acid.
GB3422828A 1926-11-19 1928-11-21 Expired GB300970A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEI29537D DE454839C (en) 1926-11-19 1926-11-19 Photographic developer
DEI31254D DE486772C (en) 1926-11-19 1927-05-23 Process for the preparation of the N-oxyaethyl derivatives of 4-amino-1-oxybenzene
DEI32645D DE487788C (en) 1926-11-19 1927-11-12 Process for the preparation of the N-oxyaethyl derivatives of nuclear substitution products and homologues of 4-amino-1-oxybenzene
DEI32719D DE467818C (en) 1926-11-19 1927-11-21 Photographic developer

Publications (1)

Publication Number Publication Date
GB300970A true GB300970A (en) 1929-08-22

Family

ID=31950658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3422828A Expired GB300970A (en) 1926-11-19 1928-11-21

Country Status (1)

Country Link
GB (1) GB300970A (en)

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