CH420851A - Process for preparing photographic silver halide emulsions by the flocculation method - Google Patents

Process for preparing photographic silver halide emulsions by the flocculation method

Info

Publication number
CH420851A
CH420851A CH1085062A CH1085062A CH420851A CH 420851 A CH420851 A CH 420851A CH 1085062 A CH1085062 A CH 1085062A CH 1085062 A CH1085062 A CH 1085062A CH 420851 A CH420851 A CH 420851A
Authority
CH
Switzerland
Prior art keywords
silver halide
halide emulsions
photographic silver
flocculation method
preparing photographic
Prior art date
Application number
CH1085062A
Other languages
German (de)
Inventor
Heinrich Dr Schaller
Walter Dr Anderau
Original Assignee
Ciba Geigy
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 to BE637343D priority Critical patent/BE637343A/xx
Priority to NL297840D priority patent/NL297840A/xx
Application filed by Ciba Geigy filed Critical Ciba Geigy
Priority to CH1085062A priority patent/CH420851A/en
Priority to FR945796A priority patent/FR1367344A/en
Priority to GB35840/63A priority patent/GB1041085A/en
Priority to DE1963C0030892 priority patent/DE1238330C2/en
Priority to ES291610A priority patent/ES291610A1/en
Priority to NL63297840A priority patent/NL142245B/en
Priority to AT733763A priority patent/AT239054B/en
Publication of CH420851A publication Critical patent/CH420851A/en
Priority to US621117A priority patent/US3366482A/en

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
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/48—Two nitrogen 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
    • G03C1/015—Apparatus or processes for the preparation of emulsions

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)
  • Colloid Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CH1085062A 1962-09-13 1962-09-13 Process for preparing photographic silver halide emulsions by the flocculation method CH420851A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE637343D BE637343A (en) 1962-09-13
NL297840D NL297840A (en) 1962-09-13
CH1085062A CH420851A (en) 1962-09-13 1962-09-13 Process for preparing photographic silver halide emulsions by the flocculation method
FR945796A FR1367344A (en) 1962-09-13 1963-08-27 Process for obtaining photographic silver halide emulsions according to the flocculation method
GB35840/63A GB1041085A (en) 1962-09-13 1963-09-11 Process for the preparation of silver halide emulsions by the flocculation method
DE1963C0030892 DE1238330C2 (en) 1962-09-13 1963-09-12 Process for the preparation of photographic silver halide emulsions by the flocculation method
ES291610A ES291610A1 (en) 1962-09-13 1963-09-12 Procedure for the preparation of photographic emulsions of argentine halide, according to the flocculation method (Machine-translation by Google Translate, not legally binding)
NL63297840A NL142245B (en) 1962-09-13 1963-09-12 PROCESS FOR PREPARING A GELATIN SILVER HALOGENIDE EMULSION SUITABLE FOR PHOTOGRAPHIC PURPOSES.
AT733763A AT239054B (en) 1962-09-13 1963-09-12 Process for preparing photographic silver halide emulsions by the flocculation method
US621117A US3366482A (en) 1962-09-13 1967-03-07 Process for the preparation of silver halide emulsions by the flocculation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1085062A CH420851A (en) 1962-09-13 1962-09-13 Process for preparing photographic silver halide emulsions by the flocculation method

Publications (1)

Publication Number Publication Date
CH420851A true CH420851A (en) 1966-09-15

Family

ID=4367478

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1085062A CH420851A (en) 1962-09-13 1962-09-13 Process for preparing photographic silver halide emulsions by the flocculation method

Country Status (8)

Country Link
US (1) US3366482A (en)
AT (1) AT239054B (en)
BE (1) BE637343A (en)
CH (1) CH420851A (en)
DE (1) DE1238330C2 (en)
ES (1) ES291610A1 (en)
GB (1) GB1041085A (en)
NL (2) NL142245B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522053A (en) * 1965-02-06 1970-07-28 Fuji Photo Film Co Ltd Process for the preparation of photographic emulsions
CH460527A (en) * 1965-06-15 1968-07-31 Ciba Geigy Process for preparing photographic silver halide emulsions by the flocculation method
CH467475A (en) * 1966-06-28 1969-01-15 Ciba Geigy Process for making enriched colloidal silver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484325A (en) * 1947-08-13
BE600141A (en) * 1960-03-15
FR1279110A (en) * 1960-03-15 1961-12-15 Koepff & Sohne G M B H Process for preparing emulsions of silver halides, in particular for photography and emulsions in accordance with those obtained
US3138461A (en) * 1960-06-10 1964-06-23 Polaroid Corp Process for preparing silver halide emulsions containing gelatin derivatives
US3288775A (en) * 1961-04-07 1966-11-29 Ciba Ltd Method of hardening gelatin by reacting with conjugated heterocyclic compounds containing halogen atoms and water-solubilizing acid groups

Also Published As

Publication number Publication date
US3366482A (en) 1968-01-30
BE637343A (en)
GB1041085A (en) 1966-09-01
ES291610A1 (en) 1964-02-16
DE1238330B (en) 1967-04-06
AT239054B (en) 1965-03-10
DE1238330C2 (en) 1974-04-18
NL142245B (en) 1974-05-15
NL297840A (en)

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