GB1362859A - Heterocyclic quaternary salts and their use in photographic silver halide emulsions - Google Patents

Heterocyclic quaternary salts and their use in photographic silver halide emulsions

Info

Publication number
GB1362859A
GB1362859A GB5034071A GB5034071A GB1362859A GB 1362859 A GB1362859 A GB 1362859A GB 5034071 A GB5034071 A GB 5034071A GB 5034071 A GB5034071 A GB 5034071A GB 1362859 A GB1362859 A GB 1362859A
Authority
GB
United Kingdom
Prior art keywords
substituted
silver halide
halide emulsions
photographic silver
quaternary salts
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
GB5034071A
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 GB1362859A publication Critical patent/GB1362859A/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)

Abstract

1362859 Polycyclic heterocyclic quaternary salts EASTMAN KODAK CO 29 Oct 1971 [30 Oct 1970] 50340/71 Heading C2C [Also in Division G2] The invention comprises a compound of the formula wherein Z represents the non-metallic atoms necessary to complete an unsubstituted or substituted heterocyclic nucleus containing a 5- or 6-membered heterocyclic ring including the quaternary nitrogen atom, the additional atoms of said ring being selected from C, N, O, S and Se atoms, each of R<SP>1</SP> and R<SP>2</SP> is H, alkyl which may be substituted or aryl, n is 1 or 2 and R, when n is 1, is H, alkyl or alkoxy which may be substituted, carbalkoxy, aryl, aryloxy or carbamido, or, when n is 2, is a C 1 to C 4 alkylene group and X- is an anion. They may be obtained by heating in an inert organic solvent therefor of moderate polarity, a quaternary salt of the formula to effect ring closure. Examples are given for the production of the compounds. They are useful as fogging agents for photographic silver halide emulsions.
GB5034071A 1970-10-30 1971-10-29 Heterocyclic quaternary salts and their use in photographic silver halide emulsions Expired GB1362859A (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
GB1362859A true GB1362859A (en) 1974-08-07

Family

ID=22193417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5034071A Expired GB1362859A (en) 1970-10-30 1971-10-29 Heterocyclic quaternary salts and their use in photographic silver halide emulsions

Country Status (7)

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

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 (en) * 1975-12-09 1983-03-22 富士写真フイルム株式会社 Chiyokusetsupojihalogen Kaginkankouzairiyou
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
EP0050558B1 (en) * 1980-10-16 1985-07-17 EASTMAN KODAK COMPANY (a New Jersey corporation) Photographic emulsions and elements capable of forming direct-positive images
FR2497367B1 (en) * 1980-10-16 1987-08-14 Kodak Pathe POSITIVE-DIRECT SILVER HALIDE EMULSION WITH INCORPORATED NUCLEATION AGENT
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 (en) * 1981-09-02 1984-07-17 Paul M. Magee Nucleating composition for silver halide including triazole substituted and thiourea substituted phenyl hydrazides
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 (en) 1985-05-31 1991-09-11 Konica Corporation Method for forming direct positive color image

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530882A (en) * 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
BE774787A (en) 1972-02-14
JPS5247326B1 (en) 1977-12-01
DE2154076C3 (en) 1975-06-26
DE2154076A1 (en) 1972-05-10
DE2154076B2 (en) 1974-10-24
CA970199A (en) 1975-07-01
US3719494A (en) 1973-03-06
FR2113371A5 (en) 1972-06-23

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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