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    • 3. 发明公开
    • 스틸벤 유도체, 그의 제조방법 및 전자사진 감광체
    • STILBENE衍生化合物,其制备方法和电子光电子体
    • KR1020050031887A
    • 2005-04-06
    • KR1020040074077
    • 2004-09-16
    • 교세라 도큐멘트 솔루션즈 가부시키가이샤
    • 이치구치데쯔야이나가키요시오
    • G03G5/06
    • C07C211/54G03G5/0601G03G5/0668G03G5/0672G03G5/0698
    • Provided are a stilbene derivative compound having particular substituent groups at determined positions to have fine compatibility with resin to be attached and to show predetermined sensitivity for long term, a process for preparation of the stilbene derivative, and an electrographic photoconductor containing the same. The stilbene derivative compound is represented by the following formula(1) (wherein A is divalent organic group having a principal frame of aromatic hydrocarbon; R1 to R7 are independently substitutents such as hydrogen atom, halogen atom, substituted or unsubstituted alkyl having C1-C20, substituted or unsubstituted halogenated alkyl group, substituted or unsubstituted alkoxy group having C1-C20, substituted or unsubstituted aryl group having C6-C30, substituted or unsubstituted amino group; and any two among R1 to R7 are combined or condensed to form a carbon ring structure, Ar1 to Ar7 are independently and substituted or unsubstituted aryl group having C6-C30; a and b each are integer of 0 to 4, c is an integer of 1 to 3. But, when A is divalent organic group represented by the following formula(2), at least one of R1 and R5 is a substituent other than hydrogen atom while at least one of R1 to R7 being a substituent other than hydrogen atom if A is not divalent organic group of the formula(2)).
    • 提供在确定位置具有特定取代基的1,2-二苯乙烯衍生物化合物,以与要连接的树脂具有良好的相容性并长期显示预定的灵敏度,制备芪衍生物的方法和含有该取代基的电子感光体。 二苯乙烯衍生物化合物由下式(1)表示(其中A是具有芳香烃主链的二价有机基团; R 1至R 7独立地为氢原子,卤素原子,取代或未取代的C 1 -C 20烷基取代基 取代或未取代的卤代烷基,具有C1-C20的取代或未取代的烷氧基,取代或未取代的具有C6-C30的取代或未取代的芳基,取代或未取代的氨基; R1〜R7中的任意两个组合或缩合形成碳环 结构中,Ar 1〜Ar 7分别独立地为具有C 6 -C 30的取代或未取代的芳基,a和b各自为0〜4的整数,c为1〜3的整数。但是,A为二价有机基团时, 式(2)中,R 1和R 5中的至少一个为除氢原子以外的取代基,如果A不是氢原子的二价有机基团,则R 1〜R 7为除氢原子以外的取代基中的至少一个 式(2))。
    • 9. 发明公开
    • 전자 사진용 감광체
    • 电子照相机
    • KR1020040006963A
    • 2004-01-24
    • KR1020020041580
    • 2002-07-16
    • 삼성전자주식회사
    • 주혜리김범준이남정이환구요코다사부로연경열
    • G03G5/00
    • G03G5/0666G03G5/0614G03G5/0668G03G5/142
    • PURPOSE: Provided is an electrophotographic photoreceptor for use in a copying machine, a printer and an electrophotographic device, which minimizes the image defect and inhibits the expose potential increase to improve the electrical properties. CONSTITUTION: The electrophotographic photoreceptor comprises a conductive substrate, an undercoating layer and a photoreceptive layer, wherein the undercoating layer comprises a charge transport material soluble in an organic solvent and a binder resin. In particular, the organic solvent for dissolving the charge transport material is an alcohol solvent, a halogenated solvent or a mixed solvent thereof. Preferably, the binder resin is a polyamide resin.
    • 目的:提供一种用于复印机,打印机和电子照相装置的电子照相感光体,其使图像缺陷最小化并且抑制曝光电位增加以改善电性能。 构成:电子照相感光体包括导电基底,底涂层和感光层,其中底涂层包含可溶于有机溶剂的电荷输送材料和粘合剂树脂。 特别地,用于溶解电荷输送材料的有机溶剂是醇溶剂,卤化溶剂或其混合溶剂。 优选地,粘合剂树脂是聚酰胺树脂。