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    • 1. 发明授权
    • Polyester-imides in electrophotographic elements
    • 聚酯酰亚胺在电子照相元件中
    • US5266429A
    • 1993-11-30
    • US992304
    • 1992-12-21
    • Louis J. SorrieroRalph H. YoungTeh-Ming KungJoseph A. Pavlisko
    • Louis J. SorrieroRalph H. YoungTeh-Ming KungJoseph A. Pavlisko
    • C08G73/16G03G5/05G03G5/06G03G5/047G03G5/087
    • G03G5/0592C08G73/16G03G5/0571G03G5/0612G03G5/0637
    • An electrophotographic element comprises a polyester-imide that includes a dioxy component and a dicarbonyl component, one of which components contains an aromatic tetracarbonyldiimide group, and has the formula ##STR1## wherein Ar.sup.1 represents a tetravalent aromatic group having 6 to about 20 carbon atoms, R.sup.1 and R.sup.2 each independently represents an alkylene group having 2 to about 12 carbon atoms, L.sup.1 and L.sup.2 represent O or C.dbd.O; when L.sup.1 and L.sup.2 are O, Z.sup.1 and Z.sup.2 each independently represents an aromatic or aliphatic dicarbonyl group having about 4 to about 12 carbon atoms and Q represents an alkylenedioxy group having 2 to about 25 carbon atoms or ##STR2## wherein Ar.sup.2 represents a tetravalent aromatic group having 6 to about 20 carbon atoms that may be the same as or different from Ar.sup.1, R.sup.3 and R.sup.4 each independently represents an alkylene group having 2 to about 12 carbon atoms; and L.sup.3 and L.sup.4 are O; or when L.sup.1 and L.sup.2 are C.dbd.O, Z.sup.1 and Z.sup.2 each independently represent an alkylenedioxy group having 2 to about 25 carbon atoms and Q represents an aromatic or aliphatic dicarbonyl group having about 4 to about 12 carbon atoms or ##STR3## wherein Ar.sup.2, R.sup.3 and R.sup.4 are as defined above, and L.sup.3 and L.sup.4 are C.dbd.O; x represents the mole fraction of the dioxy or dicarbonyl component of the polyester-amide that contains the tetravalent aromatic group Ar.sup.1, and y represents the mole fraction of the dioxy or dicarbonyl component of the polyester-imide that contains Z.sup.1, wherein x is 0.05 to 1 and y is 0 to 0.95.
    • 电子照相元件包括包含二氧基组分和二羰基组分的聚酯酰亚胺,其中一种组分含有芳族四羰基二酰亚胺基团,并具有式(I)其中Ar 1表示具有6至约20个的四价芳族基团 碳原子,R 1和R 2各自独立地表示具有2至约12个碳原子的亚烷基,L 1和L 2表示O或C = O; 当L1和L2为O时,Z1和Z2各自独立地表示具有约4至约12个碳原子的芳族或脂族二羰基,Q表示具有2至约25个碳原子的亚烷基二氧基,或者其中Ar 2表示四价芳族 具有6至约20个碳原子的可以与Ar 1相同或不同的基团,R 3和R 4各自独立地表示具有2至约12个碳原子的亚烷基; L3和L4为O; 或者当L1和L2为C = O时,Z1和Z2各自独立地表示具有2至约25个碳原子的亚烷基二氧基,Q表示具有约4至约12个碳原子的芳族或脂族二羰基或其中Ar 2, R3和R4如上所定义,L3和L4是C = O; x表示含有四价芳香族基团Ar 1的聚酯 - 酰胺的二氧基或二羰基成分的摩尔分数,y表示含有Z 1的聚酯 - 酰亚胺的二氧基或二羰基成分的摩尔分数,其中x为0.05〜 1,y为0〜0.95。