CH479089A - Process for increasing the sensitivity of photosensitive halogen silver emulsions - Google Patents

Process for increasing the sensitivity of photosensitive halogen silver emulsions

Info

Publication number
CH479089A
CH479089A CH1419966A CH1419966A CH479089A CH 479089 A CH479089 A CH 479089A CH 1419966 A CH1419966 A CH 1419966A CH 1419966 A CH1419966 A CH 1419966A CH 479089 A CH479089 A CH 479089A
Authority
CH
Switzerland
Prior art keywords
sensitivity
increasing
silver emulsions
halogen silver
photosensitive halogen
Prior art date
Application number
CH1419966A
Other languages
German (de)
Inventor
Harald Dr Hueckstaedt
Wilhelm Dr Saleck
Herbert Dr Mueller
August Dr Randolph
Original Assignee
Agfa Gevaert Ag
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 Agfa Gevaert Ag filed Critical Agfa Gevaert Ag
Publication of CH479089A publication Critical patent/CH479089A/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
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • 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
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02—Polyamines
    • C08G73/0206—Polyalkylene(poly)amines
    • C08G73/0213—Preparatory process
    • C08G73/0226—Quaternisation of polyalkylene(poly)amines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polyethers (AREA)
CH1419966A 1965-10-23 1966-09-30 Process for increasing the sensitivity of photosensitive halogen silver emulsions CH479089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0050595 1965-10-23

Publications (1)

Publication Number Publication Date
CH479089A true CH479089A (en) 1969-09-30

Family

ID=6937486

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1419966A CH479089A (en) 1965-10-23 1966-09-30 Process for increasing the sensitivity of photosensitive halogen silver emulsions

Country Status (5)

Country Link
BE (1) BE688761A (en)
CH (1) CH479089A (en)
DE (1) DE1472783C3 (en)
GB (1) GB1145186A (en)
NL (1) NL6614930A (en)

Also Published As

Publication number Publication date
NL6614930A (en) 1967-03-28
DE1472783B2 (en) 1973-11-22
DE1472783A1 (en) 1969-05-29
GB1145186A (en) 1969-03-12
BE688761A (en) 1967-04-24
DE1472783C3 (en) 1974-06-27

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Legal Events

Date Code Title Description
PL Patent ceased