Claims
- 1. A photoconductive material comprising (a) an alternating copolymer comprising a repeating unit of the formula:
- --Z--(X--Y).sub.n -- (I)
- wherein n is at least 2, X is S, Se or Te, and Y and Z are independently selected from the group consisting of benzene, anthracene, naphthalene, pyrene, perylene, naphthacene, benzoanthracene, benzophenanthrene, crysene, triphenylene, phenanthrene, anthraquinone, dibenzopyrenequinone, anthoanthrone, isoviolanthrone, pyranthrone, metal-free phthalocyanine, metal phthalocyanines, indigo and thioindigo, and (b) 0.01-20% by weight, based on the weight of the copolymer, of an organic compound selected from the group consisting of phthalocyanine pigments and perylene pigments and having a decomposition temperature higher than a temperature for crystallizing said copolymer.
- 2. The photoconductive material according to claim 1, wherein said organic compound is a phthalocyanine pigment.
- 3. A process for preparing a photoconductive material comprising (a) an alternating copolymer comprising a repeating unit of the formula:
- --Z--(X--Y).sub.n -- (I)
- wherein n is at least 2, X is S, Se or Te, and Y and Z are independently selected from the group consisting of benzene, anthracene, naphthalene, pyrene, perylene, naphthacene, benzoanthracene, benzophenanthrene, crysene, triphenylene, phenanthrene, anthraquinone, dibenzopyrenequinone, anthoanthrone, isoviolanthrone, pyranthrone, metal-free phthalocyanine, metal phthalocyanines, indigo and thioindigo, and (b) 0.01-20% by weight, based on the weight of the copolymer, of an organic compound selected from the group consisting of phthalocyanine pigments and perylene pigments and having a decomposition temperature higher than a temperature for crystallizing said copolymer, which process comprises the following steps:
- (1) mixing said organic compound and a diamine of the formula
- NH.sub.2 --(Y.sub.i --X.sub.i).sub.n --Y.sub.i --NH.sub.2 (III)
- wherein n is a number of at least 2, i is a positive integer not larger than n, Y is defined above, and X is S, Se, or Te,
- (2) adding, to the resulting mixture of step (1), a tetracarboxylic dianhydride of the formula: ##STR7## wherein A is a tetravalent hydrocarbon group, and (3) polycondensing said diamine and said dianhydride to produce said alternating copolymer and thus prepare said photoconductive material comprising said alternating copolymer and said organic compound.
Priority Claims (5)
Number |
Date |
Country |
Kind |
2-073777 |
Mar 1990 |
JPX |
|
2-073778 |
Mar 1990 |
JPX |
|
2-073779 |
Mar 1990 |
JPX |
|
2-074971 |
Mar 1990 |
JPX |
|
2-335910 |
Nov 1990 |
JPX |
|
Parent Case Info
This is a divisional application of Ser. No. 08/090,638 filed Jul. 13, 1993, now U.S. Pat. No. 5,486,442 which is a continuation application of Ser. No. 07/673,759 filed Mar. 25, 1991 now abandoned.
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Number |
Name |
Date |
Kind |
3554744 |
Allan |
Jan 1971 |
|
4698295 |
Pfeifer et al. |
Oct 1987 |
|
5384649 |
Takimoto et al. |
Jan 1995 |
|
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Country |
A-0240249 |
Oct 1987 |
EPX |
A-0283636 |
Sep 1988 |
EPX |
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Jan 1989 |
EPX |
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Jan 1989 |
EPX |
A-0375165 |
Jun 1990 |
EPX |
A-2400224 |
Mar 1979 |
FRX |
62-111263 |
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JPX |
Non-Patent Literature Citations (4)
Entry |
Patent Abstracts of Japan, vol. 13, No. 93 (P-838) (3441) Mar. 6, 1989. |
Patent Abstracts of Japan, vol. 8, No. 257 (P-316) (1694) Nov. 24, 1984. |
World Patents Index, Week 8726, Derwent Publications, AN 87-181570. |
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Divisions (1)
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Number |
Date |
Country |
Parent |
90638 |
Jul 1993 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
673759 |
Mar 1991 |
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