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    • 1. 发明授权
    • Aromatic amino charge transport layer in electrophotography
    • 电子照相术中的芳香族氨基电荷传输层
    • US4299897A
    • 1981-11-10
    • US121768
    • 1980-02-15
    • Milan StolkaJohn F. YanusDamodar M. PaiDale S. RenferJames M. Pearson
    • Milan StolkaJohn F. YanusDamodar M. PaiDale S. RenferJames M. Pearson
    • G03G5/06G03G5/14
    • G03G5/0614
    • 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 10 to about 75 percent by weight of: ##STR1## R.sub.1 is selected from the group consisting of hydrogen (ortho) CH.sub.3, (meta) CH.sub.3, (para) CH.sub.3, and R.sub.2 is selected from the group consisting of hydrogen, (ortho) CH.sub.3, (meta) CH.sub.3, and (para) CH.sub.3. 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.
    • 公开了具有至少两个电操作层的感光构件。 第一层包括光电导层,其能够对空穴进行光生并将光生空穴注入连续的电荷传输层。 电荷输送层包含含有约10至约75重量%的电惰性有机树脂材料:R 1选自氢(邻)CH 3,(间)CH 3,(对)CH 3, 并且R 2选自氢,(邻)CH 3,(甲基)CH 3和(对))CH 3。 在预期用途的光谱区域中基本上不吸收的电荷输送层是“活性的”,因为其允许从光电导层注入光生孔,并允许这些孔传输通过电荷输送层。 该结构可以以通常包括充电,曝光和显影的常规静电复印模式成像。
    • 4. 发明授权
    • Electrostatographic imaging member and process using anthracene
functional polymers
    • 静电成像和使用蒽功能聚合物的方法
    • US4043812A
    • 1977-08-23
    • US556256
    • 1975-03-07
    • Milan StolkaJames M. PearsonJohn F. Yanus
    • Milan StolkaJames M. PearsonJohn F. Yanus
    • C08F12/32C08F20/18C08F20/22G03G5/07G03G5/04
    • C08F12/32C08F20/18C08F20/22G03G5/071C07C2103/24
    • 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: ##STR1## wherein X and Y are independently selected from hydrogen, chlorine, bromine, alkyl of 1 to 4 carbon atoms or phenylIs 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 10.sup.4). 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.
    • 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,下式的蒽反应物:其中X和Y独立地选自氢,氯,溴,1至4个碳原子的烷基或苯基。在氮气条件下,在氮气下进行酰化。 在两个位置的反应。 所得到的酰化产物可以(a)与亚烷基次磷酰(Wittig合成)或(b)还原成相应的醇反应。 在这种还原之后,该醇可以在羟基官能团进一步改性以形成可聚合的加成单体。 通过适当选择反应物的相对浓度并控制加工条件,不仅可以以高产率制备这些单体,而且可以在这些单体聚合时获得高分子量2-蒽基和取代的2-蒽基官能团 聚合物(分子量至少为104)。 可以容易地形成这样高分子量的聚合物,而不需要使用粘合剂作为自支撑膜。 这样的膜在电磁光谱的紫外区域是本征光电导,并且对于两极性的电荷载体具有良好的传输能力。