Phenothiazine or phenoxazine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
AssigneeTakasago International Corporation
InventorsTohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama, Toshimitsu Hagiwara
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Abstract
A phenothiazine or phenoxazine derivative represented by the following general formula (1), a charge-transporting material comprising the derivative, and an electrophotographic photoreceptor containing the charge-transporting material are disclosed. The charge-transporting material has good solubility in binder polymers, satisfactory sensitivity, and a low residual potential. ##STR1##
Claims3
A charge-transporting material comprising a phenothiazine or phenoxazine derivative represented by the following general formula (1):
- ##STR36## wherein Ar.sup.1 and Ar.sup.2 are the same or different and each represents an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group;
- R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a lower alkyl group, or an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group;
- R.sup.3 represents a lower alkyl group, an alicyclic hydrocarbon group having 5 to 7 carbon atoms, an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group, or an aralkyl group which may have one or more substituents selected from the group consisting of a benzyl group, a tolylmethyl group, a methoxybenzyl group, and a chlorobenzyl group;
- X represents a sulfur atom or an oxygen atom;
- and n and m each represents an integer of 0 or 1, wherein a lower alkyl group has from 1 to 4 carbon atoms and a lower alkoxy group has from 1 to 3 carbon atoms.
An electrophotographic photoreceptor containing a charge-transporting material comprising a phenothiazine or phenoxazine derivative represented by the following general formula (1):
- ##STR37## wherein Ar.sup.1 and Ar.sup.2 are the same or different and each represents an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group;
- R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a lower alkyl group, or an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group;
- R.sup.3 represents a lower alkyl group, an alicyclic hydrocarbon group having 5 to 7 carbon atoms, an aryl group which may have one or more substituents selected from the group consisting of a lower alkyl group, a lower alkoxy group, a halogen atom, a diarylamino group, and a dialkylamino group, or an aralkyl group which may have one or more substituents selected from the group consisting of a benzyl group, a tolylmethyl group, a methoxybenzyl group, and a chlorobenzyl group;
- X represents a sulfur atom or an oxygen atom;
- and n and m each represents an integer of 0 or 1, wherein a lower alkyl group has from 1 to 4 carbon atoms and a lower alkoxy group has from 1 to 3 carbon atoms, and further wherein said electrophotographic photoreceptor comprises an electrically conductive support carrying a charge-transporting material and a charge-generating material, which are in the same or separate layers, wherein the charge-transporting material comprises a phenothiazine or phenothiazine derivative represented by the above general formula (1).
Dependencies are inferred from the claim text.