GB486382A - Improvements in antibalation layers for photographic films - Google Patents

Improvements in antibalation layers for photographic films

Info

Publication number
GB486382A
GB486382A GB25767/37A GB2576737A GB486382A GB 486382 A GB486382 A GB 486382A GB 25767/37 A GB25767/37 A GB 25767/37A GB 2576737 A GB2576737 A GB 2576737A GB 486382 A GB486382 A GB 486382A
Authority
GB
United Kingdom
Prior art keywords
phenyl
methyl
antibalation
layers
photographic films
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
GB25767/37A
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 GB486382A publication Critical patent/GB486382A/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
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/83—Organic dyestuffs therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Murexide is produced by the condensation of alloxan and uramil in alkaline solution. Rubazonic acid is prepared by treating 1-phenyl-3-methyl-pyrazole-4 : 5-dione with hydroxylamine, reducing the oxime to the amine and condensing with 1-phenyl-3-methyl-pyrazole-4 : 5-dione. The following dyes are similarly prepared: 2-(11 : 31-diketohydrindylidene)-1 : 3-diketohydrindamine, 1 : 3-diketohydrindylideneuranil, 1 : 3-diketo-2-salicylidene-hydrindamine, and 4-(11 : 31-diketohydrindylidene) -5-keto-1-phenyl-3-methyl-pyrazolamine. The dyestuff components may also be condensed with gelatine in alkaline solution to give colouring matters.
GB25767/37A 1936-09-25 1937-09-23 Improvements in antibalation layers for photographic films Expired GB486382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US486382XA 1936-09-25 1936-09-25

Publications (1)

Publication Number Publication Date
GB486382A true GB486382A (en) 1938-06-02

Family

ID=21955626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25767/37A Expired GB486382A (en) 1936-09-25 1937-09-23 Improvements in antibalation layers for photographic films

Country Status (2)

Country Link
FR (1) FR827126A (en)
GB (1) GB486382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677612A (en) * 1950-04-11 1954-05-04 Gaspar Photographic light-sensitive element
US2696438A (en) * 1950-04-11 1954-12-07 Gaspar Light screening photographic layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677612A (en) * 1950-04-11 1954-05-04 Gaspar Photographic light-sensitive element
US2696438A (en) * 1950-04-11 1954-12-07 Gaspar Light screening photographic layer

Also Published As

Publication number Publication date
FR827126A (en) 1938-04-20

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