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    ELECTROPHOTOGRAPHIC RECORDING MATERIAL
    1.
    发明专利
    ELECTROPHOTOGRAPHIC RECORDING MATERIAL 未知

    公开(公告)号：ZA747184B

    公开(公告)日：1975-12-31

    申请号：ZA747184

    申请日：1974-11-08

    Applicant: HOECHST AG

    Inventor： SCHOEN G ,  ROCHLITZ J

    IPC: C07D231/06 ,  C07C15/38 ,  C07C45/00 ,  C07C49/665 ,  C07C49/683 ,  C07C67/00 ,  C07D231/20 ,  C07D231/22 ,  C09B23/00 ,  C09B57/00 ,  G03G5/047 ,  G03G5/06 ,  G03G5/07 ,  G03G

    Abstract: This invention relates to an electrophotographic recording material comprising an electrically conducting supporting material having thereon a photoconductive double layer of organic materials, said double layer being composed of a homogeneous, opaque, charge carrier-producing dyestuff layer and a transparent top layer of insulating material containing at least one charge-transporting compound, the transparent top layer comprising a binder and a charge-transporting aromatic compound with an extended pi -electron system which is substituted by at least one substituted amino group, and the dyestuff layer comprising a condensation product of an aromatic aldehyde and a compound carrying an active methylene group.

    4.
    发明专利
    未知

    公开(公告)号：BR7409440A

    公开(公告)日：1976-05-25

    申请号：BR944074

    申请日：1974-11-11

    Applicant: HOECHST AG

    Inventor： ROCHLITZ J ,  SCHON G

    IPC: C07D231/06 ,  C07C15/38 ,  C07C45/00 ,  C07C49/665 ,  C07C49/683 ,  C07C67/00 ,  C07D231/20 ,  C07D231/22 ,  C09B23/00 ,  C09B57/00 ,  G03G5/047 ,  G03G5/06 ,  G03G5/07 ,  G03G5/00

    Abstract: This invention relates to an electrophotographic recording material comprising an electrically conducting supporting material having thereon a photoconductive double layer of organic materials, said double layer being composed of a homogeneous, opaque, charge carrier-producing dyestuff layer and a transparent top layer of insulating material containing at least one charge-transporting compound, the transparent top layer comprising a binder and a charge-transporting aromatic compound with an extended pi -electron system which is substituted by at least one substituted amino group, and the dyestuff layer comprising a condensation product of an aromatic aldehyde and a compound carrying an active methylene group.

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