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GB644249A - Improvements in or relating to photographic developers - Google Patents

Improvements in or relating to photographic developers

Info

Publication number
GB644249A
GB644249A GB20445/48A GB2044548A GB644249A GB 644249 A GB644249 A GB 644249A GB 20445/48 A GB20445/48 A GB 20445/48A GB 2044548 A GB2044548 A GB 2044548A GB 644249 A GB644249 A GB 644249A
Authority
GB
United Kingdom
Prior art keywords
relating
photographic developers
developers
photographic
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
GB20445/48A
Inventor
David Hugh Oakley John
George Terence James Field
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.)
May and Baker Ltd
Original Assignee
May and Baker 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
Application filed by May and Baker Ltd filed Critical May and Baker Ltd
Priority to GB20445/48A priority Critical patent/GB644249A/en
Priority to US161734A priority patent/US2610122A/en
Priority to DEM4457A priority patent/DE850384C/en
Publication of GB644249A publication Critical patent/GB644249A/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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB20445/48A 1948-07-31 1948-07-31 Improvements in or relating to photographic developers Expired GB644249A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB20445/48A GB644249A (en) 1948-07-31 1948-07-31 Improvements in or relating to photographic developers
US161734A US2610122A (en) 1948-07-31 1950-05-12 Silver halide developer containing 2(beta-hydroxyethyl) aminophenol and p-hydroxyphenylamino acetic acid
DEM4457A DE850384C (en) 1948-07-31 1950-06-21 Photographic developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20445/48A GB644249A (en) 1948-07-31 1948-07-31 Improvements in or relating to photographic developers

Publications (1)

Publication Number Publication Date
GB644249A true GB644249A (en) 1950-10-04

Family

ID=10146069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20445/48A Expired GB644249A (en) 1948-07-31 1948-07-31 Improvements in or relating to photographic developers

Country Status (3)

Country Link
US (1) US2610122A (en)
DE (1) DE850384C (en)
GB (1) GB644249A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL214522A (en) * 1956-02-13 1900-01-01
US2979406A (en) * 1956-04-11 1961-04-11 Gen Aniline & Film Corp Single powder photographic developers
US3022166A (en) * 1957-03-28 1962-02-20 Polaroid Corp Photographic products, processes and compositions
US3022167A (en) * 1957-03-28 1962-02-20 Polaroid Corp Photographic products, processes and compositions
US4816384A (en) * 1986-10-09 1989-03-28 E. I. Du Pont De Nemours And Company Powdered packaged developer
JP3038416B2 (en) * 1991-10-28 2000-05-08 コニカ株式会社 Photographic processing agents
EP0540990B1 (en) * 1991-11-06 1998-07-15 Konica Corporation Tablet-shaped processing agent and method for processing silver halide photographic light sensitive materials
US5452045A (en) * 1992-10-30 1995-09-19 Konica Corporation Apparatus for processing a light-sensitive silver halide photographic material
US5409805A (en) * 1993-07-29 1995-04-25 Konica Corporation Solid processing agent for silver halide photographic light-sensitive materials
JPH0854716A (en) * 1994-08-12 1996-02-27 Konica Corp Silver halide photographic sensitive material and its processing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1758762A (en) * 1927-08-18 1930-05-13 Agfa Ansco Corp Process of developing photographic materials and new photographic developers

Also Published As

Publication number Publication date
US2610122A (en) 1952-09-09
DE850384C (en) 1952-09-25

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