GB1350278A - Electrophotographic element - Google Patents

Electrophotographic element

Info

Publication number
GB1350278A
GB1350278A GB4560271A GB4560271A GB1350278A GB 1350278 A GB1350278 A GB 1350278A GB 4560271 A GB4560271 A GB 4560271A GB 4560271 A GB4560271 A GB 4560271A GB 1350278 A GB1350278 A GB 1350278A
Authority
GB
United Kingdom
Prior art keywords
sensitizer
photo
conductive layer
poly
layer
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
GB4560271A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP8843370A external-priority patent/JPS4913344B1/ja
Priority claimed from JP8915270A external-priority patent/JPS4913345B1/ja
Priority claimed from JP8915470A external-priority patent/JPS4913347B1/ja
Priority claimed from JP8915370A external-priority patent/JPS4913346B1/ja
Priority claimed from JP9035370A external-priority patent/JPS4913348B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1350278A publication Critical patent/GB1350278A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/09—Sensitisors or activators, e.g. dyestuffs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/043—Photoconductive layers characterised by having two or more layers or characterised by their composite structure
    • G03G5/047—Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge transport layers

Landscapes

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

Abstract

1350278 Electro-photographic element MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 30 Sept 1971 [7 Oct 1970 8 Oct 1970 (3) 13 Oct 1970] 45602/71 Heading G2C An electro-photographic element comprises a conductive support, a photo-conductive layer comprising at least one of poly-N-vinyl carbazole, poly N- alkenyl carbazole, or a nuclearsubstituted poly -N-vinyl carbazole and a layer 0À1 to 1 Á thick of at least one of these polymers and an organic sensitizer, the photo-conductive layer and the sensitizer-containing layer being 3 to 30 Á thick. The sensitizer may be a pyrylium, thiapyrylium, carbonium or benzopyrylium salt or the reaction product of a benzopyrylium salt with a pyrane. The photo-conductive layer is formed by coating the support with an organic solvent solution of the poly carbazole optionally containing a plasticizer e.g. chlorinated diphenyl or an epoxy resin and a resin e.g. a polycarbonate. After the photo-conductive layer has dried its top surface is coated with a solution of the sensitizer or a leuco base thereof using a solvent which will partially dissolve the photoconductive layer. Alternatively the sensitizer may be vacuum deposited and the deposited surface exposed to solvent vapour. The solution of sensitizer may contain a plasticizer, a polycarbonate and a monomer corresponding to the polymer of the photo-conductive layer. The sensitivity of the element can be enhanced by heating.
GB4560271A 1970-10-07 1971-09-30 Electrophotographic element Expired GB1350278A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8843370A JPS4913344B1 (en) 1970-10-07 1970-10-07
JP8915270A JPS4913345B1 (en) 1970-10-08 1970-10-08
JP8915470A JPS4913347B1 (en) 1970-10-08 1970-10-08
JP8915370A JPS4913346B1 (en) 1970-10-08 1970-10-08
JP9035370A JPS4913348B1 (en) 1970-10-13 1970-10-13

Publications (1)

Publication Number Publication Date
GB1350278A true GB1350278A (en) 1974-04-18

Family

ID=27525346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4560271A Expired GB1350278A (en) 1970-10-07 1971-09-30 Electrophotographic element

Country Status (2)

Country Link
CA (1) CA972605A (en)
GB (1) GB1350278A (en)

Also Published As

Publication number Publication date
DE2150528B2 (en) 1975-01-02
DE2150528A1 (en) 1972-04-20
CA972605A (en) 1975-08-12

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years