CA1142788A - Organic chloro- or bromo-compounds used in direct positive silver halide emulsions - Google Patents

Organic chloro- or bromo-compounds used in direct positive silver halide emulsions

Info

Publication number
CA1142788A
CA1142788A CA000328961A CA328961A CA1142788A CA 1142788 A CA1142788 A CA 1142788A CA 000328961 A CA000328961 A CA 000328961A CA 328961 A CA328961 A CA 328961A CA 1142788 A CA1142788 A CA 1142788A
Authority
CA
Canada
Prior art keywords
emulsion
organic halogen
silver halide
halogen compound
direct positive
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
CA000328961A
Other languages
English (en)
French (fr)
Inventor
Ronald A. Prados
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of CA1142788A publication Critical patent/CA1142788A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485Direct positive emulsions
    • G03C1/48515Direct positive emulsions prefogged
    • G03C1/48523Direct positive emulsions prefogged characterised by the desensitiser

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
CA000328961A 1978-06-02 1979-06-01 Organic chloro- or bromo-compounds used in direct positive silver halide emulsions Expired CA1142788A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91201678A 1978-06-02 1978-06-02
US912,016 1978-06-02

Publications (1)

Publication Number Publication Date
CA1142788A true CA1142788A (en) 1983-03-15

Family

ID=25431258

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000328961A Expired CA1142788A (en) 1978-06-02 1979-06-01 Organic chloro- or bromo-compounds used in direct positive silver halide emulsions

Country Status (6)

Country Link
EP (1) EP0016061B1 (en, 2012)
JP (1) JPS6161372B2 (en, 2012)
BE (1) BE876734A (en, 2012)
CA (1) CA1142788A (en, 2012)
DE (1) DE2967425D1 (en, 2012)
WO (1) WO1980000040A1 (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845011A (en) * 1987-10-23 1989-07-04 Hoechst Celanese Corporation Visible light photoinitiation compositions
US4945027A (en) * 1987-10-23 1990-07-31 Hoechst Celanese Corporation 1,4 or 9,10 dimethoxyanthracene triggers for 2-tri(chloro or bromo)methyl-4(1H)-quinazolimone polymerization initiators

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06100795B2 (ja) * 1988-05-13 1994-12-12 富士写真フイルム株式会社 ハロゲン化銀写真感光材料
JPH0271172U (en, 2012) * 1988-11-16 1990-05-30
GB9221383D0 (en) * 1992-10-12 1992-11-25 Minnesota Mining & Mfg Photothermographic imaging materials and antifoggants therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH378283A (de) * 1959-10-15 1964-07-31 Agfa Ag Verfahren zur Herstellung von farbigen photographischen Bildern auf Textilmaterial
US3495987A (en) * 1965-09-03 1970-02-17 Du Pont Photopolymerizable products
US3510348A (en) * 1966-03-11 1970-05-05 Eastman Kodak Co Direct positive recording film
DE1597598A1 (de) * 1966-11-16 1970-06-25 Gaf Corp Gelatine fuer photographische Zwecke
US3637387A (en) * 1967-10-24 1972-01-25 Agfa Gevaert Nv Direct positive emulsion containing a halide releasing compound developed in the presence of an unsubstituted hydrazine
US3632340A (en) * 1968-09-09 1972-01-04 Eastman Kodak Co Cored direct positive silver halide emulsion developed with polyhydroxybenzene
BE757145A (nl) * 1969-10-09 1971-04-07 Agfa Gevaert Nv Fotografische opnametechniek
GB1427525A (en) * 1972-07-13 1976-03-10 Agfa Gevaert Directpositive silver halide emulsions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845011A (en) * 1987-10-23 1989-07-04 Hoechst Celanese Corporation Visible light photoinitiation compositions
US4945027A (en) * 1987-10-23 1990-07-31 Hoechst Celanese Corporation 1,4 or 9,10 dimethoxyanthracene triggers for 2-tri(chloro or bromo)methyl-4(1H)-quinazolimone polymerization initiators

Also Published As

Publication number Publication date
DE2967425D1 (en) 1985-05-15
EP0016061A4 (en) 1981-08-27
WO1980000040A1 (en) 1980-01-10
BE876734A (fr) 1979-12-03
JPS6161372B2 (en, 2012) 1986-12-25
JPS55500380A (en, 2012) 1980-06-26
EP0016061A1 (en) 1980-10-01
EP0016061B1 (en) 1985-04-10

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Legal Events

Date Code Title Description
MKEX Expiry