CH440974A - Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers - Google Patents

Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers

Info

Publication number
CH440974A
CH440974A CH195764A CH195764A CH440974A CH 440974 A CH440974 A CH 440974A CH 195764 A CH195764 A CH 195764A CH 195764 A CH195764 A CH 195764A CH 440974 A CH440974 A CH 440974A
Authority
CH
Switzerland
Prior art keywords
polyglycols
agents
contrast
increasing
production
Prior art date
Application number
CH195764A
Other languages
German (de)
Inventor
Martelet Jean
Voisin Georges
Bonjour Georges
Original Assignee
Lumiere Soc
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 Lumiere Soc filed Critical Lumiere Soc
Priority to CH195764A priority Critical patent/CH440974A/en
Priority to GB387365A priority patent/GB1077885A/en
Priority to BE659834A priority patent/BE659834A/xx
Priority to FR3213A priority patent/FR1422620A/en
Publication of CH440974A publication Critical patent/CH440974A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
    • 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
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • 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
    • G03C5/305—Additives other than developers
    • G03C5/3056—Macromolecular additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Plural Heterocyclic Compounds (AREA)
CH195764A 1964-02-18 1964-02-18 Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers CH440974A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH195764A CH440974A (en) 1964-02-18 1964-02-18 Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers
GB387365A GB1077885A (en) 1964-02-18 1965-01-28 Preparations for increasing contrast in the production of photographic images from silver halide layers
BE659834A BE659834A (en) 1964-02-18 1965-02-17
FR3213A FR1422620A (en) 1964-02-18 1965-06-04 Contrast enhancers in the production of photographic images using silver halide layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH195764A CH440974A (en) 1964-02-18 1964-02-18 Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers

Publications (1)

Publication Number Publication Date
CH440974A true CH440974A (en) 1967-07-31

Family

ID=4222541

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195764A CH440974A (en) 1964-02-18 1964-02-18 Use of polyglycols as agents for increasing the contrast in the production of photographic images from silver halide emulsion layers

Country Status (4)

Country Link
BE (1) BE659834A (en)
CH (1) CH440974A (en)
FR (1) FR1422620A (en)
GB (1) GB1077885A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961892A (en) 1971-03-18 1976-06-08 Lever Brothers Company Textile softening agents

Also Published As

Publication number Publication date
FR1422620A (en) 1965-12-24
GB1077885A (en) 1967-08-02
BE659834A (en) 1965-08-17

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