CA970199A - Photographic emulsions and quaternary salts - Google Patents

Photographic emulsions and quaternary salts

Info

Publication number
CA970199A
CA970199A CA122,434A CA122434A CA970199A CA 970199 A CA970199 A CA 970199A CA 122434 A CA122434 A CA 122434A CA 970199 A CA970199 A CA 970199A
Authority
CA
Canada
Prior art keywords
quaternary salts
photographic emulsions
photographic
emulsions
quaternary
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
CA122,434A
Other languages
English (en)
Other versions
CA122434S (en
Inventor
Donald W. Heseltine
Donald W. Kurtz
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
Application granted granted Critical
Publication of CA970199A publication Critical patent/CA970199A/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
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/141—Direct positive material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CA122,434A 1970-10-30 1971-09-09 Photographic emulsions and quaternary salts Expired CA970199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8570670A 1970-10-30 1970-10-30

Publications (1)

Publication Number Publication Date
CA970199A true CA970199A (en) 1975-07-01

Family

ID=22193417

Family Applications (1)

Application Number Title Priority Date Filing Date
CA122,434A Expired CA970199A (en) 1970-10-30 1971-09-09 Photographic emulsions and quaternary salts

Country Status (7)

Country Link
US (1) US3719494A (fr)
JP (1) JPS5247326B1 (fr)
BE (1) BE774787A (fr)
CA (1) CA970199A (fr)
DE (1) DE2154076C3 (fr)
FR (1) FR2113371A5 (fr)
GB (1) GB1362859A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030925A (en) * 1975-08-06 1977-06-21 Eastman Kodak Company Photographic compositions and elements including internal latent image silver halide grains and acylhydrazinophenylthiourea nucleating agents therefor
JPS5814665B2 (ja) * 1975-12-09 1983-03-22 富士写真フイルム株式会社 チヨクセツポジハロゲンカギンカンコウザイリヨウ
US4080207A (en) * 1976-06-29 1978-03-21 Eastman Kodak Company Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents
JPS5319205A (en) * 1976-08-04 1978-02-22 Fuji Photo Film Co Ltd Ps plate for lithographic printing
FR2497367B1 (fr) * 1980-10-16 1987-08-14 Kodak Pathe Emulsion positive-directe aux halogenures d'argent avec agent de nucleation incorpore
EP0050558B1 (fr) * 1980-10-16 1985-07-17 EASTMAN KODAK COMPANY (a New Jersey corporation) Emulsions photographiques et éléments pour la formation d'images positives directes
US4315986A (en) * 1980-11-10 1982-02-16 Eastman Kodak Company Photographic emulsions and elements capable of forming direct-positive images
US4306017A (en) * 1980-11-17 1981-12-15 Eastman Kodak Company Photographic emulsions and elements capable of forming direct-positive images
CA1170886A (fr) * 1981-09-02 1984-07-17 Paul M. Magee Composition de nucleation pour halogenure d'argent, renfermant des hydrazides phenyliques a substitution triazolique et thioureique
US4504570A (en) * 1982-09-30 1985-03-12 Eastman Kodak Company Direct reversal emulsions and photographic elements useful in image transfer film units
US4471044A (en) * 1983-06-13 1984-09-11 Eastman Kodak Company Silver halide emulsions and photographic elements containing adsorbable alkynyl substituted heterocyclic quaternary ammonium salts
EP0204530B1 (fr) 1985-05-31 1991-09-11 Konica Corporation Procédé de formation d'une image directement positive en couleur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530882A (fr) * 1953-08-03
US3367778A (en) * 1965-04-15 1968-02-06 Eastman Kodak Co Silver salt direct positive emulsion

Also Published As

Publication number Publication date
DE2154076A1 (de) 1972-05-10
DE2154076C3 (de) 1975-06-26
JPS5247326B1 (fr) 1977-12-01
DE2154076B2 (de) 1974-10-24
BE774787A (fr) 1972-02-14
FR2113371A5 (fr) 1972-06-23
US3719494A (en) 1973-03-06
GB1362859A (en) 1974-08-07

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