Imaging method
    1.
    发明授权

    公开(公告)号:US3888670A

    公开(公告)日:1975-06-10

    申请号:US41252373

    申请日:1973-11-02

    Applicant: XEROX CORP

    Inventor: STOLKA MILAN

    CPC classification number: G03C1/73

    Abstract: Disclosed is an imaging method based upon the chemical intensification of a polyene image dispersed in an imagewise manner upon a substrate. The method involves contacting the film with maleic anhydride to form a reaction product between the polyene and maleic anhydride. This reaction product is then contacted with a base capable of converting the carboxylic acid anhydride group of the maleic anhyride to its corresponding salt and the so-formed salt is contacted with a solution of a dye containing a colored cation capable of replacing the cation of the salt.

    Photoinduced, acid catalyzed degradation of degradable polymers
    2.
    发明授权
    Photoinduced, acid catalyzed degradation of degradable polymers 失效
    光催化降解聚合物的酸催化降解

    公开(公告)号:US3915704A

    公开(公告)日:1975-10-28

    申请号:US41160273

    申请日:1973-11-01

    Applicant: XEROX CORP

    CPC classification number: G03F7/039

    Abstract: An imaging method based upon the ultraviolet light induced acid catalyzed degradation of a composition comprising at least one acid degradable polymer of the formula:

    WHEREIN R is an aliphatic hydrocarbon radical of 1 - 6 carbon atoms, a chlorinated aliphatic hydrocarbon radical of 1 - 6 carbon atoms, or a nitrile substituted aliphatic hydrocarbon radical of 1 - 5 carbon atoms; and N IS THE DEGREE OF POLYMERIZATION. In the above imaging method one or more of the above degradable polymers is formulated with (1) a polymer capable of undergoing photoinduced dehydrohalogenation, and (2) an electron acceptor. Upon irradiation of the film containing such materials, an acid produced as a result of dehydrohalogenation attacks the degradable polymer thus causing its degradation. The effects of this degradation in the exposed regions of the film are generally visually discernable thus a permanent image is generated without further development or fixing being required.

    Abstract translation: 一种基于紫外光诱导的酸催化降解的成像方法,该组合物包含至少一种下式的酸可降解聚合物:H | --- CO --- | R n WHEREIN R是1-6碳的脂族烃基 1-6个碳原子的氯代脂族烃基或1-5个碳原子的腈取代的脂族烃基; 而N是聚合度。

    Process for preparation of 2-anthryl and substituted 2-anthryl functional monomers and polymers
    3.
    发明授权
    Process for preparation of 2-anthryl and substituted 2-anthryl functional monomers and polymers 失效
    制备2-蒽基和取代的2-蒽基官能单体和聚合物的方法

    公开(公告)号:US3923762A

    公开(公告)日:1975-12-02

    申请号:US44570574

    申请日:1974-02-25

    Applicant: XEROX CORP

    Abstract: Process for preparation of 2-anthryl and substituted 2-anthryl functional monomers and polymers. In the process for preparation of these monomers, an anthracenic reactant of the formula:

    WHEREIN X and Y are independently selected from hydrogen, chlorine, bromine, alkyl of 1 to 4 carbon atoms or phenyl is acylated in nitrobenzene under conditions which favor reaction at the two position. The resulting acylated product can then be (a) reacted with an alkylidenephosphorane (Wittig synthesis) or (b) reduced to the corresponding alcohol. Subsequent to such reduction, this alcohol can undergo further modification at the hydroxyl function to form a polymerizable addition monomer. Through the proper selection of the relative concentration of reactants and control over processing conditions, it is possible not only to prepare such monomers in high yields but also upon polymerization of such monomers, to obtain high molecular weight 2-anthryl and substituted 2-anthryl functional polymers (molecular weight of at least 104). Polymers of such high molecular weight can readily be formed without the use of binders into self-supporting films. Such films are intrinsically photoconductive in the ultraviolet region of the electromagnetic spectrum and have good transport capabilities for charge carriers of both polarities.

    Abstract translation: 制备2-蒽基和取代的2-蒽基官能单体和聚合物的方法。 在制备这些单体的方法中,下式的蒽类反应物:

    4.
    发明专利
    未知

    公开(公告)号:ES2144098T3

    公开(公告)日:2000-06-01

    申请号:ES95303541

    申请日:1995-05-25

    Applicant: XEROX CORP

    Abstract: A process for charging layered imaging members by the transfer of ions thereto from an ionically conductive medium. In one embodiment the process comprises contacting an ionically conductive liquid or polymer with the surface of the imaging member; and applying a voltage to the medium while moving the imaging member, thereby enabling the transfer of ions to said member.

    7.
    发明专利
    未知

    公开(公告)号:DE2712557A1

    公开(公告)日:1977-10-13

    申请号:DE2712557

    申请日:1977-03-22

    Applicant: XEROX CORP

    Abstract: A photosensitive member having at least two electrically operative layers is disclosed. The first layer comprises a photoconductive layer which is capable of photogenerating holes and injecting photogenerated holes into a contiguous charge transport layer. The charge transport layer comprises an electrically inactive organic resinous material containing from about 15 to about 75 percent by weight of N,N'-diphenyl-N,N'-bis(phenylmethyl)-[1,1'-biphenyl]-4,4'-diamine. The charge transport layer while substantially non-absorbing in the spectral region of intended use is "active" in that it allows injection of photogenerated holes from the photoconductive layer, and allows these holes to be transported through the charge transport layer. This structure may be imaged in the conventional xerographic mode which usually includes charging, exposure to light and development.

    8.
    发明专利
    未知

    公开(公告)号:DE69310423D1

    公开(公告)日:1997-06-12

    申请号:DE69310423

    申请日:1993-02-26

    Applicant: XEROX CORP

    Abstract: A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a ladder polymer selected from the group consisting of those represented by the following formulas: and mixtures thereof, wherein n represents the number of segments, and a charge transport layer.

    10.
    发明专利
    未知

    公开(公告)号:MX171443B

    公开(公告)日:1993-10-26

    申请号:MX19420777

    申请日:1977-07-21

    Applicant: XEROX CORP

    Abstract: A photosensitive member having at least two electrically operative layers is disclosed. The first layer comprises a photoconductive layer which is capable of photogenerating holes and injecting photogenerated holes into a contiguous charge transport layer. The charge transport layer comprises a polycarbonate resin containing from about 10 to about 75 percent by weight of: wherein X is selected from the group consisting of (ortho) CH3, (meta) CH3, (para) CH3, (ortho) C1, (meta) C1 and (para) C1. The charge transport layer while substantially non-absorbing in the spectral region of intended use is "active" in that it allows injection of photogenerated holes from the photoconductive layer, and allows these holes to be transported through the charge transport layer. This structure may be imaged in the conventional xerographic mode which usually includes charging, exposure to light and development.

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