GB840720A - Sensitization of photographic emulsions - Google Patents

Sensitization of photographic emulsions

Info

Publication number
GB840720A
GB840720A GB30373/57A GB3037357A GB840720A GB 840720 A GB840720 A GB 840720A GB 30373/57 A GB30373/57 A GB 30373/57A GB 3037357 A GB3037357 A GB 3037357A GB 840720 A GB840720 A GB 840720A
Authority
GB
United Kingdom
Prior art keywords
sensitization
polyvinyl pyrrolidone
photographic emulsions
photographic light
sensitive
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
GB30373/57A
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Publication of GB840720A publication Critical patent/GB840720A/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
    • G03C1/04—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)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pyrrole Compounds (AREA)

Abstract

840,720. Photographic light-sensitive materials. GENERAL ANILINE & FILM CORPORATION. Sept. 27,1957 [Dec. 5,1956], No. 30373/57, Class 98(2) Photographic light-sensitive, silver halide material contains in the emulsion layer polyvinyl pyrrolidone to increase the effective speed. An example is given of the addition of polyvinyl pyrrolidone to a gelatin silver bromoiodide emulsion. U.S.A. Specifications 2,265,450 and 2,335,454 are referred to.
GB30373/57A 1956-12-05 1957-09-27 Sensitization of photographic emulsions Expired GB840720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US840720XA 1956-12-05 1956-12-05

Publications (1)

Publication Number Publication Date
GB840720A true GB840720A (en) 1960-07-06

Family

ID=22182711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30373/57A Expired GB840720A (en) 1956-12-05 1957-09-27 Sensitization of photographic emulsions

Country Status (1)

Country Link
GB (1) GB840720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365143A1 (en) * 1976-09-16 1978-04-14 Wolfen Filmfab Veb SILVER HALIDE-BASED PHOTOSENSITIVE PHOTOGRAPHIC MATERIAL FOR CONSTRUCTION OF FRAME IMAGES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365143A1 (en) * 1976-09-16 1978-04-14 Wolfen Filmfab Veb SILVER HALIDE-BASED PHOTOSENSITIVE PHOTOGRAPHIC MATERIAL FOR CONSTRUCTION OF FRAME IMAGES

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