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    • 4. 发明公开
    • 스틸벤퀴논 구조를 가지는 고분자 및 이를 포함하는 전자사진감광체
    • 具有苯乙烯基结构的聚合物和包含聚合物的电子照相光电子
    • KR1020040043369A
    • 2004-05-24
    • KR1020020071607
    • 2002-11-18
    • 삼성전자주식회사
    • 김범준요코다사부로연경열이환구
    • G03G5/04
    • G03G5/0567G03G5/0553G03G5/0575G03G5/0582G03G5/0605G03G5/0614G03G5/0618G03G5/0672
    • PURPOSE: A polymer having a stilbenequinone structure, its preparation method and an electrophotographic photoreceptor containing the polymer are provided, to prevent the precipitation due to crystallization, thereby improving an electron transport property. CONSTITUTION: The polymer is represented by the formula 1, wherein R1, R2, R3, R4, R5 and R6 are independently H, a halogen atom, OH, a carboxyl group, a cyano group, an amino group, a nitro group, a substituted or unsubstituted alkyl group of C1-C20, a substituted or unsubstituted aryl group of C6-C30, a substituted or unsubstituted aralkyl group of C7-C30, or a substituted or unsubstituted alkoxy group of C1-C20; -X- is a single bond, -S-, -O-, -NH-, a substituted or unsubstituted alkylene group of C1-C20, a substituted or unsubstituted heteroalkylene group of C1-C20, a substituted or unsubstituted alkenylene group of C2-C20, a substituted or unsubstituted heteroalkenylene group of C2-C20, a substituted or unsubstituted arylene group of C6-C30, or a substituted or unsubstituted aralkylene group of C7-C30; and n is an integer of 5-1,000. Preferably the polymer has a number average molecular weight of 500-100,000.
    • 目的:提供具有二苯乙烯结构的聚合物及其制备方法和含有聚合物的电子照相感光体,以防止结晶时的沉淀,从而提高电子传输性能。 构成:聚合物由式1表示,其中R 1,R 2,R 3,R 4,R 5和R 6独立地为H,卤素原子,OH,羧基,氰基,氨基,硝基, C 1 -C 20的取代或未取代的烷基,C 6 -C 30的取代或未取代的芳基,C 7 -C 30的取代或未取代的芳烷基或取代或未取代的C 1 -C 20的烷氧基; -X-是单键,-S-,-O-,-NH-,取代或未取代的C1-C20的亚烷基,C1-C20的取代或未取代的亚杂烷基,C2的取代或未取代的亚烯基 -C 20,C 2 -C 20的取代或未取代的亚杂烯基,C 6 -C 30的取代或未取代的亚芳基或取代或未取代的C 7 -C 30的亚芳基; n为5-1000的整数。 优选地,聚合物的数均分子量为500-100,000。
    • 5. 发明公开
    • 전자 사진 감광체, 공정 카트리지 및 전자 사진 장치
    • 电子感光元件,工艺盒和电子照相设备
    • KR1020040010157A
    • 2004-01-31
    • KR1020030047704
    • 2003-07-14
    • 캐논 가부시끼가이샤
    • 요시무라,키미히로모리카와,요스케이케즈에,타츠야나카타,코우이치타나카,다이스케
    • G03G5/06
    • G03G5/14747G03G5/0564G03G5/0567G03G5/0575G03G5/0592G03G5/14791
    • PURPOSE: Provided is an electrophotographic photosensitive member having a cured surface layer which has excellent wear resistance and a high hardness without adding any curing catalyst, and does not cause any deterioration of the original charge transport performance. CONSTITUTION: The electrophotographic photosensitive member includes a support(4) and a photosensitive layer disposed thereon. The electrophotographic photosensitive member has a surface layer(1) which contains at least one charge-transporting material(2) and conductive particles; and a polymer obtained by polymerizing at least one selected from the group consisting of a polyhydroxymethyl bisphenol monomer having 2 or 3 benzene rings and 2 to 4 hydroxymethyl groups; a polyhydroxymethyl bisphenol oligomer having a structure in which a bisphenol monomer having 2 or 3 benzene rings is condensed, and having 2 to 4 hydroxymethyl groups; a polyhydroxymethyl trisphenol monomer having 3 or 4 benzene rings and 2 to 6 hydroxymethyl groups; and a polyhydroxymethyl trisphenol oligomer having a structure in which a trisphenol monomer having 3 or 4 benzene rings is condensed, and having 2 to 6 hydroxymethyl groups.
    • 目的:提供具有固化表面层的电子照相感光构件,其具有优异的耐磨性和高硬度,而不添加任何固化催化剂,并且不会导致原始电荷输送性能的任何劣化。 构成:电子照相感光构件包括支撑体(4)和设置在其上的感光层。 电子照相感光构件具有包含至少一种电荷输送材料(2)和导电颗粒的表面层(1) 以及通过聚合选自具有2或3个苯环的多羟基甲基双酚单体和2至4个羟甲基的至少一种而获得的聚合物; 具有其中具有2或3个苯环的双酚单体缩合并具有2至4个羟甲基的结构的多羟基甲基双酚低聚物; 具有3或4个苯环和2至6个羟甲基的多羟甲基三酚单体; 和具有3或4个苯环的三酚单体缩合并具有2〜6个羟甲基的结构的多羟甲基三酚低聚物。