FR1579422A - - Google Patents

Info

Publication number
FR1579422A
FR1579422A FR1579422DA FR1579422A FR 1579422 A FR1579422 A FR 1579422A FR 1579422D A FR1579422D A FR 1579422DA FR 1579422 A FR1579422 A FR 1579422A
Authority
FR
France
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1579422A publication Critical patent/FR1579422A/fr
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
FR1579422D 1967-09-12 1968-09-11 Expired FR1579422A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66707767A 1967-09-12 1967-09-12

Publications (1)

Publication Number Publication Date
FR1579422A true FR1579422A (de) 1969-08-22

Family

ID=24676697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1579422D Expired FR1579422A (de) 1967-09-12 1968-09-11

Country Status (6)

Country Link
US (1) US3560213A (de)
JP (1) JPS4842966B1 (de)
BE (1) BE720660A (de)
DE (1) DE1797239C3 (de)
FR (1) FR1579422A (de)
GB (1) GB1200393A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816135A (en) * 1972-03-30 1974-06-11 Du Pont Direct positive silver halide emulsions through synergistic effects of fogging agents and organic reducing agents and/or their oxidized forms
GB1427525A (en) * 1972-07-13 1976-03-10 Agfa Gevaert Directpositive silver halide emulsions

Also Published As

Publication number Publication date
JPS4842966B1 (de) 1973-12-15
US3560213A (en) 1971-02-02
BE720660A (de) 1969-03-11
DE1797239A1 (de) 1970-12-17
GB1200393A (en) 1970-07-29
DE1797239C3 (de) 1978-04-13
DE1797239B2 (de) 1977-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse