Polyester-imides in electrophotographic elements
    1.
    发明授权
    Polyester-imides in electrophotographic elements 失效
    聚酯酰亚胺在电子照相元件中

    公开(公告)号:US5266429A

    公开(公告)日:1993-11-30

    申请号:US992304

    申请日:1992-12-21

    摘要: An electrophotographic element comprises a polyester-imide that includes a dioxy component and a dicarbonyl component, one of which components contains an aromatic tetracarbonyldiimide group, and has the formula ##STR1## wherein Ar.sup.1 represents a tetravalent aromatic group having 6 to about 20 carbon atoms, R.sup.1 and R.sup.2 each independently represents an alkylene group having 2 to about 12 carbon atoms, L.sup.1 and L.sup.2 represent O or C.dbd.O; when L.sup.1 and L.sup.2 are O, Z.sup.1 and Z.sup.2 each independently represents an aromatic or aliphatic dicarbonyl group having about 4 to about 12 carbon atoms and Q represents an alkylenedioxy group having 2 to about 25 carbon atoms or ##STR2## wherein Ar.sup.2 represents a tetravalent aromatic group having 6 to about 20 carbon atoms that may be the same as or different from Ar.sup.1, R.sup.3 and R.sup.4 each independently represents an alkylene group having 2 to about 12 carbon atoms; and L.sup.3 and L.sup.4 are O; or when L.sup.1 and L.sup.2 are C.dbd.O, Z.sup.1 and Z.sup.2 each independently represent an alkylenedioxy group having 2 to about 25 carbon atoms and Q represents an aromatic or aliphatic dicarbonyl group having about 4 to about 12 carbon atoms or ##STR3## wherein Ar.sup.2, R.sup.3 and R.sup.4 are as defined above, and L.sup.3 and L.sup.4 are C.dbd.O; x represents the mole fraction of the dioxy or dicarbonyl component of the polyester-amide that contains the tetravalent aromatic group Ar.sup.1, and y represents the mole fraction of the dioxy or dicarbonyl component of the polyester-imide that contains Z.sup.1, wherein x is 0.05 to 1 and y is 0 to 0.95.

    摘要翻译: 电子照相元件包括包含二氧基组分和二羰基组分的聚酯酰亚胺,其中一种组分含有芳族四羰基二酰亚胺基团,并具有式(I)其中Ar 1表示具有6至约20个的四价芳族基团 碳原子,R 1和R 2各自独立地表示具有2至约12个碳原子的亚烷基,L 1和L 2表示O或C = O; 当L1和L2为O时,Z1和Z2各自独立地表示具有约4至约12个碳原子的芳族或脂族二羰基,Q表示具有2至约25个碳原子的亚烷基二氧基,或者其中Ar 2表示四价芳族 具有6至约20个碳原子的可以与Ar 1相同或不同的基团,R 3和R 4各自独立地表示具有2至约12个碳原子的亚烷基; L3和L4为O; 或者当L1和L2为C = O时,Z1和Z2各自独立地表示具有2至约25个碳原子的亚烷基二氧基,Q表示具有约4至约12个碳原子的芳族或脂族二羰基或其中Ar 2, R3和R4如上所定义,L3和L4是C = O; x表示含有四价芳香族基团Ar 1的聚酯 - 酰胺的二氧基或二羰基成分的摩尔分数,y表示含有Z 1的聚酯 - 酰亚胺的二氧基或二羰基成分的摩尔分数,其中x为0.05〜 1,y为0〜0.95。

    Photoconductive elements having a polymeric barrier layer
    3.
    发明授权
    Photoconductive elements having a polymeric barrier layer 失效
    具有聚合物阻挡层的光导元件

    公开(公告)号:US06866977B2

    公开(公告)日:2005-03-15

    申请号:US10243702

    申请日:2002-09-14

    摘要: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic mechanisms, and, is not substantially affected by humidity changes. The barrier layer includes a polyamide-co-imide having covalently bonded as repeat units in the polymer chain, aromatic tetracarbonylbisimide groups of the formula: wherein Ar1 and Ar2 respectively represent tetravalent or trivalent aromatic groups of 6 to about 20 carbon atoms, and X is O, C(CF3)2, S═O or SO2. The amount of aromatic tetracarbonylbisimide content in the polymer is selected such that the barrier layer can be coated onto the support as a relatively thick layer, which provides for enhanced performance as a photoconductor when used in an electrophotographic process.

    摘要翻译: 公开了包括导电性支持体(例如,导电膜,鼓或带)的光电导元件,其上设置有带负电的光导电层。 电阻挡层设置在导电支撑体和光电导层之间。 阻挡层为注入正电荷提供了高能量势垒,但在施加的电场下传输电子。 在实施例中,阻挡层可以通过电子机构输送电荷,并且基本上不受湿度变化的影响。 阻挡层包括在聚合物链中具有作为重复单元共价键合的聚酰胺 - 共 - 酰亚胺,下式的芳族四羰基双酰亚胺基团:其中Ar 1和Ar 2分别表示6至约20的四价或三价芳族基团 碳原子,X是O,C(CF 3)2,S = O或SO 2。 选择聚合物中芳族四羰基二酰亚胺含量的量使得阻挡层可以涂覆在载体上作为相对较厚的层,当用于电子照相方法时,这提供了作为光电导体的增强的性能。

    Lubricating layer in photographic elements
    5.
    发明授权
    Lubricating layer in photographic elements 有权
    摄影元素中的润滑层

    公开(公告)号:US06573222B1

    公开(公告)日:2003-06-03

    申请号:US09568835

    申请日:2000-05-11

    IPC分类号: C10M16100

    摘要: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and a protective topcoat superposed farthest from the support. The topcoat includes a binder and lubricant droplets. The lubricant droplets are composed of a lubricant and a water soluble polymer containing heterocyclic aromatic nitrogen groups wherein the droplets are surrounded by a particulate stabilizer. The present invention is also directed to the lubricant droplets.

    摘要翻译: 本发明是一种成像元件,其包括支撑体,叠置在支撑体上的至少一个成像层和与支撑体最远重叠的保护面漆。 面漆包括粘合剂和润滑剂液滴。 润滑剂液滴由润滑剂和含有杂环芳族氮基团的水溶性聚合物组成,其中液滴被颗粒稳定剂包围。 本发明还涉及润滑剂液滴。

    Toner image pressure transfer method and toner useful therefor
    6.
    发明授权
    Toner image pressure transfer method and toner useful therefor 失效
    调色剂图像压力转印方法和碳粉有用

    公开(公告)号:US5162189A

    公开(公告)日:1992-11-10

    申请号:US723590

    申请日:1991-07-01

    IPC分类号: B01J13/06 G03G9/087 G03G9/093

    摘要: Pressure-sensitive, heat-fusible, encapsulated toner particles are provided which have very uniform size and physical characteristics. A method for making the particles is provided wherein a latex copolymer functions as a stabilizer controlling particle size of the core composition of the toner particles. The latex copolymer becomes the shell composition thereof. The particles are particularly useful in a process for transferring a toned image comprised of such particles from a photoconductor to a receiver.

    摘要翻译: 提供了具有非常均匀的尺寸和物理特性的压敏的,易熔融的包封的调色剂颗粒。 提供了制备颗粒的方法,其中胶乳共聚物用作控制调色剂颗粒的芯组合物的颗粒尺寸的稳定剂。 胶乳共聚物成为其壳组合物。 该颗粒在用于将由这种颗粒组成的调色图像从光电导体转印到接收器的过程中特别有用。

    Process for forming cocrystals containing chlorine-free titanyl phthalocyanines and low concentration of titanyl fluorophthalocyanine using organic milling aid
    7.
    发明授权
    Process for forming cocrystals containing chlorine-free titanyl phthalocyanines and low concentration of titanyl fluorophthalocyanine using organic milling aid 失效
    使用有机研磨助剂形成含有无氯氧钛酞菁和低浓度氧钛酞菁的共晶体的方法

    公开(公告)号:US06949139B2

    公开(公告)日:2005-09-27

    申请号:US10655289

    申请日:2003-09-04

    IPC分类号: C09B67/04 G03G5/06 C09B67/50

    CPC分类号: C09B67/0002 G03G5/0696

    摘要: In a process for forming an amorphous pigment mixture consisting essentially of TiOPc and TiOFPc and containing more than about 75 weight percent of TiOPc, a mixture of crude crystalline TiOPc and TiOFPc pigments in a weight ratio of at least 75:25 TiOPc:TiOFPc is combined with at least about 5 wt. %, based on the total weight of TiOPc and TiOFPc, of an organic milling aid. The mixture is treated under conditions effective to form a substantially amorphous pigment mixture of TiOPc and TiOFPc. The organic milling aid can be separated from the substantially amorphous pigment mixture, which can be converted to a nanoparticulate cocrystalline TiOPc/TiOFPc composition.

    摘要翻译: 在形成基本上由TiOPc和TiOFPc并且含有大于约75重量%的TiOPc的非晶颜料混合物的方法中,以至少75:25的TiOPc:TiOFPc的重量比的粗结晶TiOPc和TiOFPc颜料的混合物组合 至少约5wt。 %,基于TiOPc和TiOFPc的总重量的有机研磨助剂。 在有效形成TiOPc和TiOFPc的基本上无定形的颜料混合物的条件下处理该混合物。 有机研磨助剂可以与基本上无定形的颜料混合物分离,其可以转化成纳米颗粒共结晶TiOPc / TiOFPc组合物。

    Photoconductive elements having a polymeric barrier layer
    8.
    发明授权
    Photoconductive elements having a polymeric barrier layer 有权
    具有聚合物阻挡层的光导元件

    公开(公告)号:US06593046B2

    公开(公告)日:2003-07-15

    申请号:US09954907

    申请日:2001-09-18

    IPC分类号: G03G510

    摘要: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic, or both electronic and ionic mechanisms, and, is not substantially affected by humidity changes. The barrier layer includes a polyester-co-imides, polyesterionomer-co-imides, or polyamide-co-imides having covalently bonded as repeat units in the polymer chain, aromatic tetracarbonylbisimide groups of the formula: wherein Ar1 and Ar2 respectively represent tetravalent or trivalent aromatic groups of 6 to about 20 carbon atoms, and X is O, C(CF3)2, S═O or SO2.

    摘要翻译: 公开了包括导电性支持体(例如,导电膜,鼓或带)的光电导元件,其上设置有带负电的光导电层。 电阻挡层设置在导电支撑体和光电导层之间。 阻挡层为注入正电荷提供了高能量势垒,但在施加的电场下传输电子。 在实施例中,阻挡层可以通过电子或电子和离子机制两者传输电荷,并且基本上不受湿度变化的影响。 阻挡层包括在聚合物链中共价键合作为重复单元的聚酯 - 共 - 酰亚胺,聚酯型聚异氰酸酯 - 共 - 酰亚胺或聚酰胺 - 共 - 酰亚胺,其中Ar 1和Ar 2分别表示四价或三价的芳族四羰基二酰亚胺基团 6至约20个碳原子的芳基,X是O,C(CF 3)2,S = O或SO 2。

    Method of fusing toner
    10.
    发明授权
    Method of fusing toner 失效
    定影调色剂的方法

    公开(公告)号:US5783348A

    公开(公告)日:1998-07-21

    申请号:US938879

    申请日:1997-09-26

    IPC分类号: G03G9/08 G03G13/20

    摘要: In the fusing of an electrostatographic toner pattern to a receiver sheet such as paper or film, a selected degree of gloss or texture is imparted to the image by the use of thermoplastic toner particles having a surface energy less than 35 mN/m at 150.degree. C. and a belt fusing system having a belt of a surface texture adapted to provide the selected degree of gloss or texture to the fused image, the belt having a surface energy of 35 to 70 mN/m at 150.degree. C. and at least 5 mN/m at 150.degree. C. greater than that of the toner particles.

    摘要翻译: 在将静电色调调色剂图案熔合到诸如纸或薄膜的接收片上时,通过使用表面能在150度时的表面能小于35mN / m的热塑性调色剂颗粒,赋予图像所选择的光泽度或纹理程度。 以及带式熔融系统,其具有表面纹理带,其适于提供所选择的光泽度或纹理程度的融合图像,所述带在150℃下具有35至70mN / m的表面能,并且至少 在150℃下比调色剂颗粒大5mN / m。