BE543288A - - Google Patents

Info

Publication number
BE543288A
BE543288A BE543288DA BE543288A BE 543288 A BE543288 A BE 543288A BE 543288D A BE543288D A BE 543288DA BE 543288 A BE543288 A BE 543288A
Authority
BE
Belgium
Application number
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.)
Publication of BE543288A publication Critical patent/BE543288A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/20—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D239/22—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to ring carbon atoms
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
BE543288D 1954-12-10 BE543288A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35797/54A GB796873A (en) 1954-12-10 1954-12-10 Improvements in or relating to photographic emulsions

Publications (1)

Publication Number Publication Date
BE543288A true BE543288A (en:Method)

Family

ID=10381638

Family Applications (1)

Application Number Title Priority Date Filing Date
BE543288D BE543288A (en:Method) 1954-12-10

Country Status (5)

Country Link
US (1) US2901351A (en:Method)
BE (1) BE543288A (en:Method)
DE (1) DE1019171B (en:Method)
FR (1) FR1136718A (en:Method)
GB (1) GB796873A (en:Method)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE576568A (en:Method) * 1958-03-11
BE608384A (en:Method) * 1960-09-24
US3148066A (en) * 1961-06-29 1964-09-08 Eastman Kodak Co Nitramino and nitrosamino compounds as antifoggants for photographic emulsions
US3367779A (en) * 1965-01-21 1968-02-06 Fuji Photo Film Co Ltd Direct positive silver halide photographic materials
US3519428A (en) * 1965-05-21 1970-07-07 Keuffel & Esser Co Direct-positive light-sensitive photographic material
DE1937049A1 (de) * 1968-07-23 1970-02-19 Fuji Photo Film Co Ltd Verfahren zur Behandlung von photographischen lichtempfindlichen Halogensilberelementen
GB1323111A (en) * 1970-04-01 1973-07-11 Agfa Gevaert Photographic direct positive silver halide material
BE785847A (nl) * 1971-07-30 1973-01-05 Agfa Gevaert Nv Direct-positieve zilverhalogenide-emulsies met kleurstofvormers
JPS4984639A (en:Method) * 1972-12-19 1974-08-14

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB601824A (en) * 1945-10-04 1948-05-13 Elliott & Sons Ltd Improvements in photographic light sensitive emulsions
DE685901C (de) * 1935-08-31 1939-12-28 I G Farbenindustrie Akt Ges Verfahren zur Feinkornentwicklung
US2173628A (en) * 1936-11-07 1939-09-19 Ilford Ltd Stabilization of photographic sensitive materials
GB508073A (en) * 1937-12-22 1939-06-22 John David Kendall Improvements in or relating to the stabilisation of photographic emulsions
GB707704A (en) * 1952-03-20 1954-04-21 Ilford Ltd Improvements in or relating to direct positive photographic emulsions

Also Published As

Publication number Publication date
US2901351A (en) 1959-08-25
DE1019171B (de) 1957-11-07
GB796873A (en) 1958-06-18
FR1136718A (fr) 1957-05-17

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