Electrophotographic imaging member with an improved charge transport
layer
    61.
    发明授权
    Electrophotographic imaging member with an improved charge transport layer 有权
    具有改进的电荷传输层的电子照相成像构件

    公开(公告)号:US6099996A

    公开(公告)日:2000-08-08

    申请号:US363198

    申请日:1999-07-29

    IPC分类号: G03G5/047 G03G5/06

    摘要: A flexible electrophotographic imaging member comprising a substrate and at least one imaging layer comprising a first charge transport material, free of long chain alkyl ester groups or long chain alkyl carboxyl groups, and a small amount of a different second charge transporting material containing only one long chain alkyl ester group dissolved or molecularly dispersed in a film forming binder, the at least one imaging layer having been formed by drying a coating comprising a solution of the first transporting material and second charge transporting material and the film forming polymer binder in a mixture of a low volatility solvent and a high volatility solvent. A method for fabricating this imaging member is also disclosed.

    摘要翻译: 一种柔性电子照相成像构件,包括基底和至少一个成像层,所述成像层包含不含长链烷基酯基团或长链烷基羧基的第一电荷输送材料,以及少量不同的第二电荷输送材料,其仅含有一个长 溶解或分子分散在成膜粘合剂中的至少一个成像层通过将包含第一输送材料和第二电荷输送材料的溶液和成膜聚合物粘合剂的涂层干燥而形成,所述涂层包含 低挥发性溶剂和高挥发性溶剂。 还公开了一种用于制造该成像构件的方法。

    Cross-linked polyamide anticurl back coating for electrostatographic imaging members
    63.
    发明授权
    Cross-linked polyamide anticurl back coating for electrostatographic imaging members 有权
    用于静电摄影成像的交联聚酰胺防反涂层

    公开(公告)号:US06197462B1

    公开(公告)日:2001-03-06

    申请号:US09450196

    申请日:1999-11-29

    IPC分类号: G03G510

    CPC分类号: G03G5/10

    摘要: A flexible electrostatographic imaging member including at least one photographic imaging layer, a support layer, and an anticurl back layer having an exposed surface including a cross linked polyamide at the exposed surface, the polyamide being, formed from a solution selected from the group including a first solution including crosslinkable alcohol soluble polyamide containing methoxy methyl groups attached to amide nitrogen atoms, an acid having a pKa less than about 3, a cross linking agent selected from the group including a formaldehyde generating cross linking agent, an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof, and a liquid selected from the group including alcohol solvents, diluent and mixtures thereof, a second solution including crosslinkable alcohol soluble polyamide free of methoxy methyl groups attached to amide nitrogen atoms, an acid having a pKa less than about 3, a cross linking agent selected from the group including a an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof, and a liquid selected from the group including alcohol solvents, diluent and mixtures thereof.

    摘要翻译: 一种柔性静电摄影成像构件,其包括至少一个照相成像层,支撑层和具有暴露表面的防背面层,所述暴露表面在暴露表面包括交联聚酰胺,所述聚酰胺由选自包括可交联醇的第一溶液 含有连接到酰胺氮原子上的甲氧基甲基的可溶性聚酰胺,pKa小于约3的酸,选自甲醛生成交联剂,烷氧基化交联剂,羟甲基胺交联剂的交联剂和 其混合物和选自包括醇溶剂,稀释剂及其混合物的液体的液体,包含不含与酰胺氮原子连接的甲氧基甲基的可交联醇溶性聚酰胺,pKa小于约3的酸,第二溶液,交联剂 选自包括烷氧基化物的基团 d交联剂,羟甲基胺交联剂及其混合物,以及选自醇溶剂,稀释剂及其混合物的液体。

    Allyloxymethylatedpolyamide synthesis compositions and devices

    公开(公告)号:US6004709A

    公开(公告)日:1999-12-21

    申请号:US218682

    申请日:1998-12-22

    摘要: An allyloxymethylatedpolyamide composition is disclosed, the allyloxymethylatedpolyamide being represented by Formulae I and II: ##STR1## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R is an alkylene unit containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.2 sites are --H, andbetween 1 and 99 percent of the R.sub.2 sites are --H, and the remainder of the R.sub.2 sites is between 25 percent and 99 percent --CH.sub.2 --O--(CH.sub.2).sub.w --CH.dbd.CH.sub.2, whereinw is 1, 2 or 3,between 1 and 75 percent of the R.sub.2 sites are --CH.sub.2 --O--R.sub.5, andR.sub.5 is an alkyl unit containing 1 to 4 carbon atoms, and ##STR2## wherein: m is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R.sub.1 and R are independently selected from the group consisting of alkylene units containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.3 and R.sub.4 sites are --H, and between 25 percent and 99 percent of the remainder of the R.sub.3 and R.sub.4 sites are --CH.sub.2 --O--(CH.sub.2).sub.w --CH.dbd.CH.sub.2,whereinw is 1, 2 or 3, andbetween 1 percent and 75 percent of the R.sub.2 sites are --CH.sub.2 --O--R.sub.5wherein R.sub.5 is an alkyl unit containing 1 to 4 carbon atoms.The allyloxymethylatedpolyamide may be synthesized by reacting an alcohol soluble polyamide with formaldehyde and an allylalcohol.The allyloxymethylatedpolyamide may be cross linked by a process selected from the group consisting of(a) heating an allyloxymethylatedpolyamide in the presence of a free radical catalyst, and(b) hydrosilation of the double bond of the allyloxy group of the allyloxymethylatedpolyamide with a silicon hydride reactant having at least 2 reactive sites.A preferred article includesa substrate,at least one photoconductive layer, andan overcoat layer comprisinga hole transporting hydroxy arylamine compound having at least two hydroxy functional groups, anda cross linked allyloxymethylatedpolyamide film forming binder.A stabilizer may be added to the overcoat.