GB1057938A - Producing sensitised silver halide emulsions - Google Patents

Producing sensitised silver halide emulsions

Info

Publication number
GB1057938A
GB1057938A GB14755/64A GB1475564A GB1057938A GB 1057938 A GB1057938 A GB 1057938A GB 14755/64 A GB14755/64 A GB 14755/64A GB 1475564 A GB1475564 A GB 1475564A GB 1057938 A GB1057938 A GB 1057938A
Authority
GB
United Kingdom
Prior art keywords
potassium
silver halide
ammonium
halide emulsions
emulsions
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
GB14755/64A
Inventor
Wolfgang Muller-Bardorff
Wilhelm Saleck
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Publication of GB1057938A publication Critical patent/GB1057938A/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
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D5/00—Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
    • G21D5/04—Reactor and engine not structurally combined
    • G21D5/08—Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,57,938. Sensitizing silver halide emulsions. AGFA A.G. April 9, 1964 [April 13, 1963], No. 14755/64. Heading G2C. Photographic silver halide emulsions are sensitized by after-ripening a silver halide emulsion at a pH between 5 and 7 in the presence of at least one simple or complex salt which is soluble in water or solvents miscible with water of a noble metal selected from Ru, Rh, Pd, Os, Ir, Pt and Au and in the presence of an aliphatic hydroxy carboxylic acid having up to 10 carbon atoms and having the following formula:- wherein X is a hydrogen atom an alkali metal ion or an ammonium ion and n is 0-8. The emulsions may be further sensitized with sulphur compounds, polyalkylene oxides and onium compounds. Specified noble metal salts are AuCl3, KAuCl4, NaAuCl4, Au2(SO4)3; K and Na aurous thiosulphates and aurous sulphites; potassium chloroaurite, potassium bromoaurite, potassium iodoaurite and the corresponding Ca, Sr, Cd and Ga salts; ammonium or potassium chloropalladate; ammonium, sodium or potassium chloroplatinate, bromoplatinate, chloroplatinite and chloropalladite and ammonium chlororhodate, chlororuthenate and chlororidate.
GB14755/64A 1963-04-13 1964-04-09 Producing sensitised silver halide emulsions Expired GB1057938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA42878A DE1185481B (en) 1963-04-13 1963-04-13 Process for increasing the sensitivity of halogen silver emulsions

Publications (1)

Publication Number Publication Date
GB1057938A true GB1057938A (en) 1967-02-08

Family

ID=6933342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14755/64A Expired GB1057938A (en) 1963-04-13 1964-04-09 Producing sensitised silver halide emulsions

Country Status (6)

Country Link
US (1) US3326690A (en)
BE (1) BE646466A (en)
CH (1) CH449416A (en)
DE (1) DE1185481B (en)
FR (1) FR1389299A (en)
GB (1) GB1057938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828962A (en) * 1986-10-15 1989-05-09 Minnesota Mining And Manufacturing Company High contrast scanner photographic elements employing ruthenium and iridium dopants

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862843A (en) * 1972-06-01 1975-01-28 Itek Corp Photographic element containing a layer of physical development nuclei less than two microns in thickness and a development activator
US3973967A (en) * 1972-06-01 1976-08-10 Itek Corporation Processes utilizing photographic element containing a physical development activator
JPS5832370B2 (en) * 1974-02-25 1983-07-12 富士写真フイルム株式会社 squirrel beetle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828962A (en) * 1986-10-15 1989-05-09 Minnesota Mining And Manufacturing Company High contrast scanner photographic elements employing ruthenium and iridium dopants

Also Published As

Publication number Publication date
US3326690A (en) 1967-06-20
CH449416A (en) 1967-12-31
BE646466A (en) 1964-10-13
FR1389299A (en) 1965-02-12
DE1185481B (en) 1965-01-14

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