CH441994A - 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
CH441994A
CH441994A CH1420062A CH1420062A CH441994A CH 441994 A CH441994 A CH 441994A CH 1420062 A CH1420062 A CH 1420062A CH 1420062 A CH1420062 A CH 1420062A CH 441994 A CH441994 A CH 441994A
Authority
CH
Switzerland
Prior art keywords
silver halide
halide emulsions
photographic silver
flocculation method
preparing photographic
Prior art date
Application number
CH1420062A
Other languages
German (de)
Inventor
Heinrich Dr Schaller
Paul Dr Schaefer
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 NL301289D priority Critical patent/NL301289A/xx
Application filed by Ciba Geigy filed Critical Ciba Geigy
Priority to CH1420062A priority patent/CH441994A/en
Priority to FR954920A priority patent/FR1375497A/en
Priority to US327837A priority patent/US3360373A/en
Priority to DEC31574A priority patent/DE1212839B/en
Priority to AT966063A priority patent/AT245928B/en
Priority to BE640736A priority patent/BE640736A/xx
Priority to ES0294129A priority patent/ES294129A1/en
Priority to GB47976/63A priority patent/GB1005404A/en
Publication of CH441994A publication Critical patent/CH441994A/en

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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F26/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
    • C08F26/06—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
CH1420062A 1962-12-04 1962-12-04 Process for preparing photographic silver halide emulsions by the flocculation method CH441994A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL301289D NL301289A (en) 1962-12-04
CH1420062A CH441994A (en) 1962-12-04 1962-12-04 Process for preparing photographic silver halide emulsions by the flocculation method
FR954920A FR1375497A (en) 1962-12-04 1963-11-25 Process for obtaining photographic silver halide emulsions according to the flocculation process
US327837A US3360373A (en) 1962-12-04 1963-12-03 Process for the manufacture of silver halide emulsions by the flocculation method
DEC31574A DE1212839B (en) 1962-12-04 1963-12-03 Process for the preparation of photographic silver halide emulsions by the flocculation method using copolymers as flocculants
AT966063A AT245928B (en) 1962-12-04 1963-12-03 Process for preparing photographic silver halide emulsions by the flocculation method
BE640736A BE640736A (en) 1962-12-04 1963-12-03
ES0294129A ES294129A1 (en) 1962-12-04 1963-12-03 Process for the manufacture of silver halide emulsions by the flocculation method
GB47976/63A GB1005404A (en) 1962-12-04 1963-12-04 Process for the manufacture of silver halide emulsions by the flocculation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1420062A CH441994A (en) 1962-12-04 1962-12-04 Process for preparing photographic silver halide emulsions by the flocculation method

Publications (1)

Publication Number Publication Date
CH441994A true CH441994A (en) 1967-08-15

Family

ID=4398761

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1420062A CH441994A (en) 1962-12-04 1962-12-04 Process for preparing photographic silver halide emulsions by the flocculation method

Country Status (8)

Country Link
US (1) US3360373A (en)
AT (1) AT245928B (en)
BE (1) BE640736A (en)
CH (1) CH441994A (en)
DE (1) DE1212839B (en)
ES (1) ES294129A1 (en)
GB (1) GB1005404A (en)
NL (1) NL301289A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101409A (en) * 1965-06-01 1968-01-31 Fuji Photo Film Co Ltd Improvements in and relating to photographic light sensitive materials
US3479186A (en) * 1966-01-27 1969-11-18 Polaroid Corp Emulsion binders
US3505067A (en) * 1967-03-16 1970-04-07 Gaf Corp Alkylated poly-n-vinyl-lactam stabilized silver halide emulsions
US3421896A (en) * 1967-08-03 1969-01-14 Gen Aniline & Film Corp Prevention of silver occulsion in color photography
JPS4838417B1 (en) * 1969-09-22 1973-11-17
GB1401768A (en) * 1971-12-20 1975-07-30 Agfa Gevaert Polymerisable unsaturated oxazolidines and tetrahydro-1,3-oxa zines and polymers thereof
JPS4993013A (en) * 1973-01-08 1974-09-04

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592107A (en) * 1948-11-19 1952-04-08 Hercules Powder Co Ltd Synthetic amphoteric polymers containing free amino groups and free acid groups
DE1094099B (en) * 1958-04-10 1960-12-01 Ferrania Spa Photographic photosensitive emulsion and process for the preparation thereof
GB889760A (en) * 1958-04-10 1962-02-21 Ferrania Spa Improvements in the preparation of photographic emulsions

Also Published As

Publication number Publication date
NL301289A (en)
AT245928B (en) 1966-03-25
DE1212839B (en) 1966-03-17
BE640736A (en) 1964-06-03
US3360373A (en) 1967-12-26
ES294129A1 (en) 1964-06-01
GB1005404A (en) 1965-09-22

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