GB1346909A - Electrophotographic material - Google Patents

Electrophotographic material

Info

Publication number
GB1346909A
GB1346909A GB1346909DA GB1346909A GB 1346909 A GB1346909 A GB 1346909A GB 1346909D A GB1346909D A GB 1346909DA GB 1346909 A GB1346909 A GB 1346909A
Authority
GB
United Kingdom
Prior art keywords
oct
electro
photo
sulphopropoxytrimethincyanine
nought
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
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford 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 Ilford Ltd filed Critical Ilford Ltd
Publication of GB1346909A publication Critical patent/GB1346909A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0664Dyes
    • G03G5/0666Dyes containing a methine or polymethine group
    • G03G5/0668Dyes containing a methine or polymethine group containing only one methine or polymethine group
    • G03G5/067Dyes containing a methine or polymethine group containing only one methine or polymethine group containing hetero rings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1346909 Electro-photographic materials ILFORD Ltd 13 Oct 1972 [13 Oct 1971] 47687/71 Addition to 1051056 Headings G2C and C17C2 An electro-photographic material comprises a photo-conductive layer including as sensitizer a carbocyanine dye of formula wherein R 1 , R 2 are alkyl, Y is O or S, Z is saturated alkylene with up to 6 carbon atoms in the chain, x, y and z are the same or different and each nought or 1, and D 1 , D 2 are each the residue of a 5- or 6-membered heterocyclic nucleus. In an example a composition comprising zinc oxide, resin binder and 1-anhydro-bis-(3-ethyl-2-benzothiazole) # - 3 - sulphopropoxytrimethincyanine hydroxide in toluene is coated on to conductive paper. Other examples of the dyes are given and their preparation is described in the parent Specification. The photo-conductor may alternatively be polyvinyl carbazole.
GB1346909D 1972-10-13 1972-10-13 Electrophotographic material Expired GB1346909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4768771 1972-10-13

Publications (1)

Publication Number Publication Date
GB1346909A true GB1346909A (en) 1974-02-13

Family

ID=10445915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1346909D Expired GB1346909A (en) 1972-10-13 1972-10-13 Electrophotographic material

Country Status (1)

Country Link
GB (1) GB1346909A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees