GB1441996A - Layered electrophotographic elements - Google Patents

Layered electrophotographic elements

Info

Publication number
GB1441996A
GB1441996A GB49074A GB49074A GB1441996A GB 1441996 A GB1441996 A GB 1441996A GB 49074 A GB49074 A GB 49074A GB 49074 A GB49074 A GB 49074A GB 1441996 A GB1441996 A GB 1441996A
Authority
GB
United Kingdom
Prior art keywords
pyrazoline
layer
methine dye
support
change
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
GB49074A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 US00323678A external-priority patent/US3824099A/en
Priority claimed from US00323677A external-priority patent/US3837851A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1441996A publication Critical patent/GB1441996A/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
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • 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
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic

Landscapes

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

Abstract

1441996 Electro-photographic materials INTERNATIONAL BUSINESS MACHINES CORP 4 Jan 1974 [15 Jan 1973 (2)] 00490/74 Heading G2C An electro-photographic material comprises an electrically conductive support coated, with a layer containing a triaryl pyrazoline as a change transporter and a change pattern generation layer between the support and pyrazoline layer. The change generation layer may contain an inorganic or organic photo-conductor (e.g. Se/Te/As allys or cyanize or disazo pigments as Specifications 1365766 and 1370197 or preferably is a methine dye derived from squaric acid which with the pyrazoline functions as a photo-conductor. The triaryl pyrazolines are preferably of Formula wherein n is 0 or 1 and A,A<SP>1</SP> and A<SP>2</SP> are phenyl which may be substituted with an electron donating group. The support may be subbed with polyacrylic resin before applying the methine dye (of Example 19). The methine dye may be coated with a polymer such as polyvinyl butyral optionally mixed with polymethyl methacrylate and the pyrazoline layer may contain a polyester or a polycarbonate.
GB49074A 1973-01-15 1974-01-04 Layered electrophotographic elements Expired GB1441996A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00323678A US3824099A (en) 1973-01-15 1973-01-15 Sensitive electrophotographic plates
US00323677A US3837851A (en) 1973-01-15 1973-01-15 Photoconductor overcoated with triarylpyrazoline charge transport layer

Publications (1)

Publication Number Publication Date
GB1441996A true GB1441996A (en) 1976-07-07

Family

ID=26984103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49074A Expired GB1441996A (en) 1973-01-15 1974-01-04 Layered electrophotographic elements

Country Status (1)

Country Link
GB (1) GB1441996A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee