GB1188023A - Photographic Emulsions - Google Patents

Photographic Emulsions

Info

Publication number
GB1188023A
GB1188023A GB04860/67A GB1486067A GB1188023A GB 1188023 A GB1188023 A GB 1188023A GB 04860/67 A GB04860/67 A GB 04860/67A GB 1486067 A GB1486067 A GB 1486067A GB 1188023 A GB1188023 A GB 1188023A
Authority
GB
United Kingdom
Prior art keywords
vinyl
copoly
silver halide
emulsions
photographic silver
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
GB04860/67A
Inventor
Thomas Edward Whiteley
James Roy King
Louis Morton Minsk
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1188023A publication Critical patent/GB1188023A/en
Expired legal-status Critical Current

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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,188,023. Photographic silver halide emulsions. EASTMAN KODAK CO. March 31, 1967 [April 4, 1966], No.14860/67. Heading G2C. A photographic silver halide emulsion contains as an anti-foggant a vinyl polymer in which at least 5 per cent of the vinyl units contain a sulphate ester alkali-metal or ammonium salt group. Specified polymers and copolymers are copoly (vinyl alcohol, vinyl hydrogen sulphate) ammonium salt, copoly-(vinyl alcohol, vinyl hydrogen sulphate, vinyl 2-hydroxy-5-sulphophenyl carbonate) sodium salt, the mixed ammonium-sodium salts of copoly- (α-sulphatomethyl-ethyl acrylate, α-hydroxymethylethylacrylate) and copoly-(N-#-sulphatoethylacrylamide, #-hydroxyethylacrylamide). In some emulsions the polymers act as speed-increasing compounds.
GB04860/67A 1966-04-04 1967-03-31 Photographic Emulsions Expired GB1188023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53973566A 1966-04-04 1966-04-04

Publications (1)

Publication Number Publication Date
GB1188023A true GB1188023A (en) 1970-04-15

Family

ID=24152445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04860/67A Expired GB1188023A (en) 1966-04-04 1967-03-31 Photographic Emulsions

Country Status (4)

Country Link
US (1) US3437486A (en)
BE (1) BE693572A (en)
FR (1) FR1510443A (en)
GB (1) GB1188023A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637394A (en) * 1968-04-22 1972-01-25 Eastman Kodak Co Photographic elements containing synthetic polymeric vehicles
US3779769A (en) * 1972-03-06 1973-12-18 Eastman Kodak Co Silver halide emulsion containing a stabilizing combination of a 4-hydroxy tetrazaindene and a mono-basically sulfated vinyl copolymer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625025A (en) *
US3022172A (en) * 1958-05-13 1962-02-20 Fuji Photo Film Co Ltd Process for the production of photographic materials
BE600141A (en) * 1960-03-15
BE612492A (en) * 1961-01-10

Also Published As

Publication number Publication date
US3437486A (en) 1969-04-08
DE1547796B2 (en) 1975-07-10
FR1510443A (en) 1968-01-19
BE693572A (en) 1967-07-17
DE1547796A1 (en) 1969-12-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee