POLYCARBONATE POLYMER, PRODUCTION THEREOF, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR MADE THEREFROM

WIPO Patent Application WO/1993/018081

A1

A polycarbonate polymer wherein the repeating unit is a group represented by general formula (I) and the terminal group is a group represented by formulae (I), (II), (III), (IV) or (V). In formula (I) R?1¿ and R?2¿ represent each halogen, alkyl, cycloalkyl or aryl; a and b represent each independently an integer of 0 to 4; x represents a single bond, -O-, -CO-, -S-, -SO-, -SO¿2?-, -CR?3¿R?4¿-, 1,1-cycloalkylidene or $g(a),$g(v)-alkylene; in formulae (II), (III), (IV) and (V) R?5¿ represents C¿1?-C¿30? perfluoroalkyl which may be substituted; Y represents -CH¿2?-; n represents an integer of 0 to 6; Z represents -O-, -CO-, -OCO-, -S-, -SO-, -SO¿2?- or -NHCO-; f represents 0 or 1; R?6¿ represents halogen, alkyl, cycloalkyl or aryl; and c and d represent each an integer provided that c + d « 5, c = 1 - 5 and d = 0 - 4. An electrophotographic photoreceptor containing the polycarbonate as one component of the photosensitive layer, which is free from the problem of clouding (gelation) of a coating fluid used for making the same, retains excellent mechanical strengths such as plate wear, and can maintain excellent electrophotographic characteristics, thus being practically excellent.

MIYAMOTO HIDEYUKI (JP)
SAKAMOTO SHUJI (JP)
MORISHITA HIRONOBU (JP)
NAGAO TOMOHIRO (JP)

PCT/JP1993/000267

September 16, 1993

March 03, 1993

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IDEMITSU KOSAN CO (JP)

C08G64/00; C08G64/10; C08G64/14; C08G64/20; C08G64/30; G03G5/05; (IPC1-7): C08G64/14; C08G64/24; G03G5/05

JPS5464591A	1979-05-24
JPH0315658B2	1991-03-01
JPH0319249B2	1991-03-14
JPH01253751A	1989-10-11

See also references of EP 0582722A4

Hotaka, Tetsuo (4-10 Tsukiji 2-chom, Chuo-ku Tokyo 104, JP)

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