Electrophotographic photoreceptor
    1.
    发明授权
    Electrophotographic photoreceptor 有权
    电子照相感光体

    公开(公告)号:US6150065A

    公开(公告)日:2000-11-21

    申请号:US285712

    申请日:1999-04-05

    IPC分类号: G03G5/06 G03G5/09

    CPC分类号: G03G5/0607 G03G5/0672

    摘要: Disclosed is a charge transfer material which is highly soluble in a binder resin, does not precipitates crystals and produces no pinhole and also disclosed is an electrophotographic photoreceptor comprising the charge transfer material which comprises a butadiene compound represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, respectively represent a lower alkyl group having 1-4 carbon atoms or a phenyl group or benzyl group which may have a substituent and R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, respectively represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group having 1-4 carbon atoms or a halogen atom; and a butadiene compound represented by the general formula (II): ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same as above, and the content of the butadiene compound of the formula (I) is at least 60% by weight based on the total amount by weight of the butadiene compounds of the formulae (I) and (II).

    摘要翻译: 公开了一种高度可溶于粘合剂树脂的电荷转移材料,不会析出晶体并且不产生针孔,并且还公开了包含电荷转移材料的电子照相感光体,其包含由式(I)表示的丁二烯化合物:其中R1 和可以相同或不同的R 2分别表示可以具有取代基的具有1-4个碳原子的低级烷基或可以具有取代基的苯基或苄基,R 3,R 4和R 5可以相同或不同, 分别表示氢原子,卤素原子,低级烷基,具有1-4个碳原子的低级烷氧基或卤素原子; 和由通式(II)表示的丁二烯化合物:其中R1,R2,R3,R4和R5与上述相同,式(I)的丁二烯化合物的含量为至少60重量% 关于式(I)和(II)的丁二烯化合物的总重量。

    Antiferroelectric liquid crystal compound and antiferroelectric liquid
crystal composition containing the same
    6.
    发明授权
    Antiferroelectric liquid crystal compound and antiferroelectric liquid crystal composition containing the same 失效
    含有它的反铁电液晶化合物和反铁电液晶组合物

    公开(公告)号:US5667722A

    公开(公告)日:1997-09-16

    申请号:US653744

    申请日:1996-05-23

    摘要: An antiferroelectric liquid crystal compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having 6 to 16 carbon atoms; R.sup.2 represents a straight chain alkyl group having 3 to 8 carbon atoms or a branched alkyl group having 4 to 10 carbon atoms; and * means an asymmetric carbon atom, and an antiferroelectric liquid crystal composition comprising at least one liquid crystal compound as defined above. The optically active compound of the present invention is highly miscible with a number of known antiferroelectric liquid crystal compounds and thus capable of providing liquid crystal materials having improved temperature properties. A liquid crystal composition containing the optically active compound of the present invention is applicable to electro-optical devices with the use of antiferroelectric liquid crystals.

    摘要翻译: 由以下通式(I)表示的反铁电液晶化合物:其中R 1表示碳原子数6〜16的烷基, R2表示碳原子数3〜8的直链烷基或碳原子数4〜10的支链烷基。 和*表示不对称碳原子,以及包含至少一种如上所定义的液晶化合物的反铁电液晶组合物。 本发明的光学活性化合物与多种已知的反铁电液晶化合物高度混溶,从而能够提供具有改善的温度特性的液晶材料。 含有本发明的光学活性化合物的液晶组合物可应用于使用反铁电液晶的电光装置。

    Liquid crystal compound and liquid crystal composition containing the
same
    9.
    发明授权
    Liquid crystal compound and liquid crystal composition containing the same 失效
    液晶化合物和含有它们的液晶组合物

    公开(公告)号:US5716542A

    公开(公告)日:1998-02-10

    申请号:US637284

    申请日:1996-04-24

    摘要: A liquid crystal compound represented by formula (I) and a liquid crystal composition containing the same. The compound exhibits an antiferroelectric liquid crystal phase and has good compatibility with known liquid crystal compounds. ##STR1## wherein R.sup.1 represents a straight-chain or branched alkyl, alkoxy, alkoxycarbonyl, alkanoyloxy or alkoxycarbonyloxy group having 4 to 16 carbon atoms; R.sup.2 represents a straight-chain alkyl group having 4 to 10 carbon atoms or a branched alkyl group containing 1 to 3 carbon atoms in its branch and 4 to 12 carbon atoms in total; X represents an oxygen or sulfur atom; rings A and B each represent an F-substituted or unsubstituted phenylene group, a cyclohexylene group or a divalent nitrogen-containing heterocyclic group, provided that either one of rings A and B is the nitrogen-containing heterocyclic group; ring C represents an F-substituted or unsubstituted phenylene group; and C* represents an asymmetric carbon atom.

    摘要翻译: 由式(I)表示的液晶化合物和含有该液晶化合物的液晶组合物。 该化合物表现出反铁电液晶相,与已知的液晶化合物具有良好的相容性。 (I)其中R1表示具有4至16个碳原子的直链或支链烷基,烷氧基,烷氧基羰基,烷酰氧基或烷氧基羰氧基; R2表示碳原子数为4〜10的直链烷基或碳原子数为1〜3的支链烷基,总共为4〜12个碳原子。 X表示氧或硫原子; 环A和B各自表示F取代或未取代的亚苯基,亚环己基或二价含氮杂环基,条件是环A和B中的任一个为含氮杂环基; 环C表示F取代或未取代的亚苯基; C *表示不对称碳原子。