FR2071850A5 - Lith emulsions - Google Patents

Lith emulsions

Info

Publication number
FR2071850A5
FR2071850A5 FR7038778A FR7038778A FR2071850A5 FR 2071850 A5 FR2071850 A5 FR 2071850A5 FR 7038778 A FR7038778 A FR 7038778A FR 7038778 A FR7038778 A FR 7038778A FR 2071850 A5 FR2071850 A5 FR 2071850A5
Authority
FR
France
Prior art keywords
vinyl acetate
acrylic acid
emulsions
polymers
per
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7038778A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Application granted granted Critical
Publication of FR2071850A5 publication Critical patent/FR2071850A5/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/043Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Emulsions have gradation accentuated by using grafted polymers based on polyethylene glycol M. W. 1000 - 4000 and vinyl acetate and/or acrylic acid. The polymer is used at 0.5 - 0.9 g per kg. emulsion and/or 0.2 - 2 g per litre of developer. Preferred polymers are those containing 25 - 75% vinyl acetate/acrylic acid mixture and polymers containing 0 - 67.5% vinyl acetate. Used in reprography. The agents have improved properties in that they act during prolonged development and have good solubility particularly in concentrated developer solutions.
FR7038778A 1970-04-09 1970-10-27 Lith emulsions Expired FR2071850A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD14673670 1970-04-09

Publications (1)

Publication Number Publication Date
FR2071850A5 true FR2071850A5 (en) 1971-09-17

Family

ID=5482380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7038778A Expired FR2071850A5 (en) 1970-04-09 1970-10-27 Lith emulsions

Country Status (5)

Country Link
AT (1) AT301332B (en)
CH (1) CH542459A (en)
CS (1) CS183619B2 (en)
DE (1) DE2043069A1 (en)
FR (1) FR2071850A5 (en)

Also Published As

Publication number Publication date
DE2043069A1 (en) 1971-10-21
CS183619B2 (en) 1978-07-31
CH542459A (en) 1973-09-30
AT301332B (en) 1972-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse