Claims
- 1. A photoreceptor for electrophotography, comprising a conductive substrate having a charge generation layer and a charge transport layer disposed thereon, wherein said charge transport layer comprises a compound represented by the formula (1): ##STR14## wherein Ar.sub.1 represents an arylene group; Ar.sub.2 and Ar.sub.3 independently represent an aryl group or an arylene group;
- R.sub.2 and R.sub.3, which may be identical or different, independently represent a hydrogen atom or an alkyl group having a carbon number of 4 or less, or R.sub.2 and R.sub.3 both represent --SiR.sub.4 R.sub.4 R.sub.6, wherein R.sub.4, R.sub.5, and R.sub.6, which may be identical or different, independently represent an alkyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group;
- R.sub.1 represents --SiR.sub.7 R.sub.8 R.sub.9 wherein R.sub.7, R.sub.8, and R.sub.9, which may be identical or different, independently represent an alkyl group, a cycloalkyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group and up to two or R.sub.7, R.sub.8, and R.sub.9 represent the following: ##STR15## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2 and R.sub.3 have the same definitions as above with the proviso that when both R.sub.2 and R.sub.3 are not --SiR.sub.4 R.sub.5 R.sub.6, one of two of R.sub.7, R.sub.8 and R.sub.9 represent the following: ##STR16## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2 and R.sub.3 have the same definitions as above.
- 2. The photoreceptor according to claim 1, wherein said charge transfer layer further comprises a polycarbonate resin which comprises a repeating unit represented by formula (55): ##STR17## wherein R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16 and R.sub.17 independently represent a hydrogen, halogen or alkyl group.
- 3. A photoreceptor for electrophotography according to claim 2 wherein said resin is represented by the formula: ##STR18##
- 4. The photoreceptor according to claim 1, wherein said compound of formula (1) is represented by a compound of the formula (2): ##STR19## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2, R.sub.3, R.sub.7 and R.sub.9 have the same definitions as in claim 1.
- 5. The photoreceptor according to claim 4 wherein R.sub.7 and R.sub.9 represent alkyl groups.
- 6. The photoreceptor according to claim 4, wherein said compound of formula (2) is represented by the formula: ##STR20##
- 7. The photoreceptor according to claim 4, wherein said compound of formula (2) is represented by the formula: ##STR21##
- 8. The photoreceptor according to claim 1, wherein said compound of formula (1) is represented by a compound of the formula (3): ##STR22## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2, R.sub.3 and R.sub.7 have the same definitions as in claim 1.
- 9. The photoreceptor according to claim 8 wherein R.sub.7 represents an alkyl group.
- 10. The photoreceptor according to claim 8, wherein said compound of formula (3) is represented by the formula: ##STR23##
- 11. The photoreceptor according to claim 8, wherein said compound of formula (3) is represented by the formula: ##STR24##
- 12. The photoreceptor according to claim 1, wherein said compound of formula (1) is represented by a compound of the formula (4): ##STR25## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 have the same definitions as in claim 1.
- 13. The photoreceptor according to claim 12 wherein R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 represent alkyl groups.
- 14. The photoreceptor according to claim 12, wherein said compound of formula (4) is represented by the formula: ##STR26##
- 15. The photoreceptor according to claim 12, wherein said compound of formula (4) is represented by the formula: ##STR27##
- 16. A photoreceptor for electrophotography, comprising a conductive substrate and a light sensitive layer, said light sensitive layer comprising a compound represented by the formula (1): ##STR28## wherein Ar.sub.1 represents an arylene group;
- Ar.sub.2 and Ar.sub.3 independently represent an aryl group or an arylene group;
- R.sub.2 and R.sub.3, which may be identical or different, independently represent a hydrogen atom or an alkyl group having a carbon number of 4 or less, or R.sub.2 and R.sub.3 both represent --SiR.sub.4 R.sub.5 R.sub.6, wherein R.sub.4, R.sub.5, and R.sub.6, which may be identical or different, independently represent an alkyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group;
- R.sub.1 represents --SiR.sub.7 R.sub.8 R.sub.9 wherein R.sub.7, R.sub.8, and R.sub.9, which may be identical or different, independently represent an alkyl group, a cycloalkyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group and up to two or R.sub.7, R.sub.8, and R.sub.9 represent the following: ##STR29## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2 and R.sub.3 have the same definitions as above with the proviso that when both R.sub.2 and R.sub.3 are not --SiR.sub.4 R.sub.5 R.sub.6, one of two of R.sub.7, R.sub.8 and R.sub.9 represent the following: ##STR30## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, R.sub.2 and R.sub.3 have the same definitions as above.
Priority Claims (3)
Number |
Date |
Country |
Kind |
2-64616 |
Mar 1990 |
JPX |
|
2-64617 |
Mar 1990 |
JPX |
|
2-65725 |
Mar 1990 |
JPX |
|
Parent Case Info
This application is a divisional of copending application Ser. No. 07/666,204, filed on Mar. 7, 1991, now U.S. Pat. No. 5,187,310 the entire contents of which are hereby incorporated by reference.
US Referenced Citations (7)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0332921 |
Sep 1989 |
EPX |
53-27033 |
Mar 1978 |
JPX |
56-35140 |
Apr 1981 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Jones et al., J. Amer. Chem. Soc., 94(13), pp. 4595-4599 (1972). |
World Patent Index (Online), Accession No. 88-088 429 Derwent Publications Ltd., London. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
666204 |
Mar 1991 |
|