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FR953646A - Perfectionnements aux produits photographiques - Google Patents

Perfectionnements aux produits photographiques

Info

Publication number
FR953646A
FR953646A FR953646DA FR953646A FR 953646 A FR953646 A FR 953646A FR 953646D A FR953646D A FR 953646DA FR 953646 A FR953646 A FR 953646A
Authority
FR
France
Prior art keywords
photographic products
photographic
products
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
Other languages
English (en)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR953646A publication Critical patent/FR953646A/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
    • G03C1/48515—Direct positive emulsions prefogged

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR953646D 1946-04-01 1947-09-30 Perfectionnements aux produits photographiques Expired FR953646A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10022/46A GB626053A (en) 1946-04-01 1946-04-01 Improvements in sensitive photographic materials

Publications (1)

Publication Number Publication Date
FR953646A true FR953646A (fr) 1949-12-09

Family

ID=9959998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953646D Expired FR953646A (fr) 1946-04-01 1947-09-30 Perfectionnements aux produits photographiques

Country Status (4)

Country Link
US (1) US2500140A (fr)
BE (1) BE476292A (fr)
FR (1) FR953646A (fr)
GB (1) GB626053A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717833A (en) * 1952-05-12 1955-09-13 Sperry Rand Corp Direct positive emulsions
US3367778A (en) * 1965-04-15 1968-02-06 Eastman Kodak Co Silver salt direct positive emulsion
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
DE2224837C3 (de) * 1972-05-20 1986-05-07 Agfa-Gevaert Ag, 5090 Leverkusen Direktpositives photographisches Aufzeichnungsmaterial
DE2263246A1 (de) * 1972-12-23 1974-07-04 Agfa Gevaert Ag Photographisches material zur herstellung direktpositiver photographischer bilder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462730A (fr) *
US2005837A (en) * 1931-07-07 1935-06-25 Agfa Ansco Corp Manufacture of photographic emulsions

Also Published As

Publication number Publication date
GB626053A (en) 1949-07-08
BE476292A (fr)
US2500140A (en) 1950-03-07

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