GB700646A - Improvements in the identification of photographic materials - Google Patents

Improvements in the identification of photographic materials

Info

Publication number
GB700646A
GB700646A GB24450/51A GB2445051A GB700646A GB 700646 A GB700646 A GB 700646A GB 24450/51 A GB24450/51 A GB 24450/51A GB 2445051 A GB2445051 A GB 2445051A GB 700646 A GB700646 A GB 700646A
Authority
GB
United Kingdom
Prior art keywords
per cent
cellulose
methylcoumarin
diethylamino
ester
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
GB24450/51A
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 Ltd
Original Assignee
Kodak Ltd
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 Ltd filed Critical Kodak Ltd
Publication of GB700646A publication Critical patent/GB700646A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
GB24450/51A 1950-10-26 1951-10-19 Improvements in the identification of photographic materials Expired GB700646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US192285A US2649375A (en) 1950-10-26 1950-10-26 Light-sensitive photographic element

Publications (1)

Publication Number Publication Date
GB700646A true GB700646A (en) 1953-12-09

Family

ID=22709045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24450/51A Expired GB700646A (en) 1950-10-26 1951-10-19 Improvements in the identification of photographic materials

Country Status (5)

Country Link
US (1) US2649375A (de)
BE (1) BE506515A (de)
DE (1) DE946587C (de)
FR (1) FR1044132A (de)
GB (1) GB700646A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008569B (de) * 1954-08-04 1957-05-16 Ferrania Spa Verfahren zur Unterscheidung verschiedener Typen von Rohfilmen
US2928735A (en) * 1958-11-05 1960-03-15 Eastman Kodak Co Photographic emulsions containing an antifoggant and antiplumming agent
DE1236935B (de) * 1961-10-17 1967-03-16 Agfa Ag Transparente photographische Verstaerkerfolien
US3275828A (en) * 1962-04-02 1966-09-27 Georg S Mittelstaedt Radiographic intensifying means
NL291196A (de) * 1963-04-05

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523120C (de) * 1929-10-30 1931-04-20 Hans Richter Dr Fernseh-Glimmlampe
US2038114A (en) * 1931-04-14 1936-04-21 Sylvania Ind Corp Wrapping material
DE667012C (de) * 1932-10-05 1938-11-02 Oskar Denzler Dr Verfahren zur Herstellung von Sicherheitspapier, Banknoten, Dokumenten, Textilstoffen oder aehnlichen Werkstoffen mit Geheimkennzeichnung
DE625225C (de) * 1933-04-07 1936-02-06 Hans Lewin Dr Verfahren zur Kontraststeigerung von Roentgenbildern auf undurchsichtigen Unterlagen
US2331492A (en) * 1938-06-13 1943-10-12 Chromogen Inc Process and material for printing photographic images
FR878823A (fr) * 1941-02-18 1943-02-04 Ig Farbenindustrie Ag Procédé permettant d'accentuer les blancs et le pouvoir lumineux de la couleur de la surface des images photographiques
US2334348A (en) * 1941-06-23 1943-11-16 Nat Marking Mach Co Sunburn preventive
US2391959A (en) * 1944-01-12 1946-01-01 Gallowhur George Sun-bathing apparel
US2508295A (en) * 1945-11-08 1950-05-16 Gen Aniline & Film Corp Photographic filter layer for absorbing ultraviolet radiations
BE473594A (de) * 1946-06-11

Also Published As

Publication number Publication date
BE506515A (de)
DE946587C (de) 1956-08-02
FR1044132A (fr) 1953-11-16
US2649375A (en) 1953-08-18

Similar Documents

Publication Publication Date Title
US2346090A (en) Photographic bleach-out layer
GB388670A (en) Improvements in sensitising photographic bleaching-out layers
GB700646A (en) Improvements in the identification of photographic materials
GB701281A (en) Improvements in the identification of photographic materials
GB483609A (en) Improvements relating to photographic stripping film
GB477153A (en) Improvements in and relating to photographic films
US2461478A (en) Gelatin subbing compositions having antistatic properties
US2361936A (en) Photographic materials and process of manufacturing same
US3704154A (en) Process for producing photographic materials
GB546825A (en) Improvements in photographic film
GB540567A (en) Improvements in or relating to projection screens
US2860980A (en) Plasticization of gelatin with dialkoxypolyoxyalkylene glycols
GB779687A (en) Manufacture of plates, sheets and like articles of a basis of highpolymeric polymethylene terephthalates
GB407573A (en) Improvements in or relating to the manufacture of composite films
US1973476A (en) Photographic stripping film
US2311086A (en) Method of preparing photographic products from compositions containing far-hydrolyzed cellulose esters
US2117814A (en) Photographic tracing cloth
US2461474A (en) Gelatin subbing compositions having antistatic properties
US2196775A (en) Subbing photographic film
US2337345A (en) Method of promoting the adherence of cellulose ester emulsions onto film bases
US3091534A (en) Stripping film for improved emulsion
GB894589A (en) Photographic film supports provided with a subbing layer
GB715580A (en) Improvements in the identification of photographic materials
GB886652A (en) Improvements in or relating to the production of light-sensitive sheet material
GB529035A (en) Improvements in the manufacture of artificial resins