GB524377A - Method and materials for absorbing short-wave light - Google Patents

Method and materials for absorbing short-wave light

Info

Publication number
GB524377A
GB524377A GB139440A GB139440A GB524377A GB 524377 A GB524377 A GB 524377A GB 139440 A GB139440 A GB 139440A GB 139440 A GB139440 A GB 139440A GB 524377 A GB524377 A GB 524377A
Authority
GB
United Kingdom
Prior art keywords
acetophenone
filter
support
anisalacetophenone
ultra
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
GB139440A
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
Priority to GB139440A priority Critical patent/GB524377A/en
Publication of GB524377A publication Critical patent/GB524377A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

524,377. Ultra-violet absorbing filters. KODAK, Ltd., (Eastman Kodak Co.). Jan. 23, 1939, No. 1394/40. Divided out of 524,320. C lasses 97 (i) and 98 (ii)] An ultra-violet absorbing filter comprises a transparent carrier, for example gelatin, agaragar, cellulose esters or ethers, or synthetic resins, including alkali-soluble colloids, containing an unsaturated aryl acetophenone of the formula shown in Fig. 1, wherein R 1 and R 2 are the same or different aromatic nuclei, particularly benzene. The unsaturated aryl acetophenone may,be substantially colourless and may absorb light in the region 350 to 400 ÁÁ or in the region 400 to 450 ÁÁ or in both. The filter may be used as a lens filter. Photographic material having one or more light-sensitive emulsions on a support has such a filter layer. In multilayer colour photographic material, the compound may be incorporated in the emulsion, intermediate, or backing layer or in the support. Examples specified are benzalecetophenone, cinnamal acetophenone, anisalacetophenone, and the sodium salts of the 3-sulphonic acids of salicalacetophenone and anisalacetophenone and of the 4-carboxylic acid of benzalacetophenone. Specifications 493,308 and 524,378 are referred to. According to the Provisional Specification the acetophenone may be incorporated in the support of a lenticular film.
GB139440A 1939-01-23 1939-01-23 Method and materials for absorbing short-wave light Expired GB524377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB139440A GB524377A (en) 1939-01-23 1939-01-23 Method and materials for absorbing short-wave light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB139440A GB524377A (en) 1939-01-23 1939-01-23 Method and materials for absorbing short-wave light

Publications (1)

Publication Number Publication Date
GB524377A true GB524377A (en) 1940-08-05

Family

ID=9721230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB139440A Expired GB524377A (en) 1939-01-23 1939-01-23 Method and materials for absorbing short-wave light

Country Status (1)

Country Link
GB (1) GB524377A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443157A (en) * 1945-02-09 1948-06-08 Eastman Kodak Co Photographic emulsion containing benzal pyruvic acid derivatives
US2632701A (en) * 1949-05-04 1953-03-24 Eastman Kodak Co Ultraviolet filter on photographic layers
DE1002625B (en) * 1952-10-31 1957-02-14 Eastman Kodak Co Photographic material protected from the action of ultraviolet radiation
DE958526C (en) * 1952-10-31 1957-02-21 Eastman Kodak Co Photographic material protected from the action of ultraviolet radiation and having an ultraviolet absorbing layer
DE964654C (en) * 1952-10-31 1957-05-23 Eastman Kodak Co Photographic material having an ultraviolet absorbing layer
DE1081312B (en) * 1955-10-12 1960-05-05 Eastman Kodak Co Color photographic silver halide emulsion
DE1150279B (en) * 1955-10-12 1963-06-12 Eastman Kodak Co Color photographic silver halide emulsion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443157A (en) * 1945-02-09 1948-06-08 Eastman Kodak Co Photographic emulsion containing benzal pyruvic acid derivatives
US2632701A (en) * 1949-05-04 1953-03-24 Eastman Kodak Co Ultraviolet filter on photographic layers
DE1002625B (en) * 1952-10-31 1957-02-14 Eastman Kodak Co Photographic material protected from the action of ultraviolet radiation
DE958526C (en) * 1952-10-31 1957-02-21 Eastman Kodak Co Photographic material protected from the action of ultraviolet radiation and having an ultraviolet absorbing layer
DE964654C (en) * 1952-10-31 1957-05-23 Eastman Kodak Co Photographic material having an ultraviolet absorbing layer
DE969374C (en) * 1952-10-31 1958-05-22 Eastman Kodak Co Photographic material protected from the action of ultraviolet radiation with an ultraviolet absorbing layer
DE1081312B (en) * 1955-10-12 1960-05-05 Eastman Kodak Co Color photographic silver halide emulsion
DE1150279B (en) * 1955-10-12 1963-06-12 Eastman Kodak Co Color photographic silver halide emulsion

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