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    • 8. 发明申请
    • ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
    • 电子感光体
    • US20100092212A1
    • 2010-04-15
    • US12310027
    • 2007-08-07
    • Noriyoshi OgawaToru Oirawa
    • Noriyoshi OgawaToru Oirawa
    • G03G15/00G03G5/04
    • G03G5/0564C08G64/06
    • Disclosed is an electrophotographic photosensitive body which is remarkably improved in pencil scratch resistance and wear resistance. Specifically disclosed is an electrophotographic photosensitive body wherein a polycarbonate resin having a structural unit (1) represented by the formula below is used as a binder resin for a photosensitive layer (or for a charge-transporting layer in case of multilayer type) which is formed on a conductive base. [chemical formula 1] (1) (In the formula, R1-R30 respectively represent a hydrogen atom or a substituent selected from the group consisting of fluorine, chlorine, bromine, iodine, an alkyl group having 1-17 carbon atoms, an aryl group having 6-12 carbon atoms, an alkoxy group having 1-5 carbon atoms, an alkenyl group having 2-12 carbon atoms and an aralkyl group having 7-17 carbon atoms.)
    • 公开了一种电子照相感光体,其显着提高了铅笔的耐刮擦性和耐磨性。 具体公开了一种电子照相感光体,其中使用具有由下式表示的结构单元(1)的聚碳酸酯树脂作为形成的感光层(或多层型的电荷输送层)的粘合剂树脂 在导电基座上。 [化学式1](1)(式中,R 1 -R 30分别表示氢原子或选自氟,氯,溴,碘,具有1-17个碳原子的烷基的取代基,芳基 具有6-12个碳原子的基团,具有1-5个碳原子的烷氧基,具有2-12个碳原子的烯基和具有7-17个碳原子的芳烷基。
    • 9. 发明申请
    • BINDER RESIN FOR PHOTOSENSITIVE LAYERS AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR BELTS
    • 感光层和电子照相胶带的粘合剂树脂
    • US20100068640A1
    • 2010-03-18
    • US12310358
    • 2007-08-21
    • Noriyoshi Ogawa
    • Noriyoshi Ogawa
    • G03G5/047C08G64/04C08L69/00G03G5/04
    • G03G5/0564G03G5/056G03G5/0578G03G5/0592G03G5/0596
    • An electrophotographic photoreceptor belt which is excellent in durability and therefore little cracks even when fingerprints of an operator or hand cream adheres to the belt, wherein a binder resin for photosensitive layers comprising as the main component a polycarbonate resin which comprises bisphenol A type constituent units represented by the formula (I) as the main constituent unit (preferably in an amount of at least 90% by weight based on the whole of the constituent units) and which has a limiting viscosity of 1 to 1.6 dl/g and preferably a molecular weight distribution of 3.2 to 4.3 as calculated from the weight-average molecular weight and number-average molecular weight determined by GPC is used in a photosensitive layer (particularly carrier transport layer) of the belt.
    • 一种电子照相感光带,其耐久性优异,因此即使操作者或手霜的指纹粘附到带上也很少发生裂纹,其中用于感光层的粘合剂树脂包括作为主要组分的聚碳酸酯树脂,其包含双酚A型结构单元 通式(I)为主要构成单元(优选为基于整个构成单元的至少90重量%),其特性粘度为1至1.6dl / g,优选分子量 通过由GPC测定的重均分子量和数均分子量计算出的3.2〜4.3的分布用于带的感光层(特别是载流子传输层)。
    • 10. 发明申请
    • Polycarbonate Resin and Electrophotographic Photosensitive Body Using Same
    • 聚碳酸酯树脂和电子照相感光体
    • US20090117478A1
    • 2009-05-07
    • US12225703
    • 2007-03-28
    • Noriyoshi Ogawa
    • Noriyoshi Ogawa
    • G03G15/02C08G64/06G03G5/00
    • G03G5/0564C08G64/045G03G5/047G03G5/0592
    • An electrophotographic photosensitive body which has both good image stability and wear resistance under high temperature and high humidity conditions can be obtained by using a novel polycarbonate resin, which contains a structural unit represented by the general formula (I) below and having a long-chain unsaturated hydrocarbon group having a double bond, as a binder resin for a charge transport layer of an electrophotographic photosensitive body. In the formula (I), R1-R4 preferably represent a hydrogen atom or a methyl group, respectively; a represents a number of 7-20; and R6 represents a hydrogen atom, a methyl group or a phenyl group. Particularly preferably, the structural unit represented by the general formula (I) below is derived from 1,1-bis(4-hydroxy-3-methylphenyl)-10-undecene or 1,1-bis(4-hydroxyphenyl)-10-undecene.
    • 通过使用含有下述通式(I)所示的结构单元并具有长链的新型聚碳酸酯树脂,可以获得在高温高湿条件下具有良好的图像稳定性和耐磨性的电​​子照相感光体 具有双键的不饱和烃基,作为电子照相感光体的电荷输送层的粘合剂树脂。 在式(I)中,R 1 -R 4优选分别表示氢原子或甲基; a代表7-20的数量; R6表示氢原子,甲基或苯基。 特别优选由下述通式(I)表示的结构单元衍生自1,1-双(4-羟基-3-甲基苯基)-10-十一碳烯或1,1-双(4-羟基苯基) 十一碳烯