摘要:
An electrophotographic photosensitive element having a conductive support provided thereon with a photosensitive layer comprising a carrier-generating phase and a carrier-transporting phase. The carrier-transporting phase comprises a hydrazone compound to improve carrier-transporting ability having the formula ##STR1## wherein, X and Y each represent a hydrogen or a halogen, R.sub.1 and R.sub.2 each represent an aryl group which may have a substituent or substituents, and Ar represents an arylene group which may have a substituent or substituents.
摘要:
An electrophotographic photosensitive element having a conductive support provided thereon with a photosensitive layer comprising (i) a carrier-generating phase layer containing a carrier-generating material selected from the group consisting of perylene dyes, polycyclic quinones and azo dyes and (ii) a carrier-transporting phase layer containing a carrier-transporting material wherein said carrier-transporting phase comprises a hydrazone compound represented by the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent an aryl group which may have a substituent or substituents, and Ar represents an arylene group which may have a substituent or substituents.
摘要:
Electrophotographic light-sensitive elements containing substituted or unsubstituted fluorenone hydrazones as charge generating or charge transport materials are described.
摘要:
An electrophotographic light-sensitive element comprising a conductive support which supports a light-sensitive layer containing a carbazole derivative of the formula: ##STR1## wherein R.sub.1 is an aryl group, R.sub.2 is hydrogen, a halogen, an alkyl, an alkoxy, an amino or hydroxy group, and R.sub.3 is an aryl, or a heterocyclic group.
摘要:
Photoreceptor for electrophotography comprising a conductive support and an overlaying photosensitive layer thereon, said photosensitive layer containing at least one azo compound of Formula I or II ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3 and Ar.sub.4 each is an aromatic hydrocarbon ring radical or an aromatic heterocyclic ring radical; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an electron attractive group or hydrogen provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is an electron attractive group; and A is ##STR2## wherein X is a hydroxy group or a group represented by the formula: ##STR3## wherein R.sub.6 and R.sub.7 each is hydrogen or an alkyl group, and R.sub.8 is an alkyl or aryl group; Y is halogen, an alkyl or alkoxy group, a carboxy group, a sulfo group, a carbamoyl or sulfamoyl group; Z is an atomic group necessary for making an aromatic hydrocarbon ring or an aromatic heterocyclic ring; R.sub.5 is hydrogen, an amino or carbamoyl group, a carboxy group or an ester group thereof; Ar.sub.5 is an aryl group; n is an integer of 1, 2 or 3; and m is an integer of 0, 1 or 2.
摘要:
An electrophotographic photosensitive member, comprising an electroconductive support and, provided thereon, a photosensitive layer containing a bisazo compound represented by the formula [I]: ##STR1## wherein A is as per defined in the specification. The electrophotographic photosensitive member according to the present invention is stable to heat and light and also excellent in carrier generating ability.
摘要:
An electrophotograhic photoreceptor that has great ability to generate carriers and which has high sensitivity but low residual potential is disclosed. This photoreceptor is characterized by having formed on an electrically conductive support a light-sensitive layer containing a bisazo compound of the following formula: ##STR1## (wherein R.sub.1 is a cyano group, a chlorine atom or a bromine atom; X.sub.1 is a halogen atom, an alkyl group, an alkoxy group or a cyano group; X.sub.2 is a hydrogen atom, a halogen atom, an alkyl atom or an alkoxy group; A is ##STR2## wherein Y is a substituted or unsubstituted carbamoyl group or a substituted or unsubstituted sulfamoyl group; Z is an atomic group necessary for forming a substituted or unsubstituted aromatic hydrocarbon ring or a substituted or unsubstituted heteroaromatic ring; R.sub.2 is a hydrogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted carbamoyl group, a carboxy group or an ester group thereof; and A' is a substituted or unsubstituted aryl group).
摘要翻译:公开了具有很高的灵敏度但低残留电位的产生载体的能力的电子照相感光体。 该感光体的特征在于在导电载体上形成含有下式的双偶氮化合物的光敏层:其中R1是氰基,氯原子或溴原子; X1是卤素原子 ,烷基,烷氧基或氰基; X 2为氢原子,卤素原子,烷基或烷氧基; A为取代或未取代的氨基甲酰基或取代或未取代的氨基甲酰基 氨磺酰基; Z是形成取代或未取代的芳族烃环或取代或未取代的杂芳环所需的原子团; R 2是氢原子,取代或未取代的氨基,取代或未取代的氨基甲酰基,羧基或 其酯基; A'为取代或未取代的芳基)。
摘要:
An electrophotographic photoreceptor having formed on an electrically conductive support a light-sensitive layer containing a hydrazone derivative of formula (I) as a photoconductive material is disclosed: ##STR1## wherein Z is a divalent hydrocarbon group necessary to form in conjunction with a nitrogen atom a 5- or 6-membered nitrogen-containing heterocyclic ring condensed to the benzene ring; R.sub.1 is an aryl group or a heterocyclic group; R.sub.2 is a hydrogen atom, an alkyl group or an aryl group; X is a hydrogen atom, a halogen atom, an alkyl group, a substituted amino group, an alkoxy group or a cyano group; and n is an integer of 0 or 1. This hydrazone derivative exhibits great carrier transporting ability when it is incorporated in the light-sensitive layer.
摘要:
Disclosed is an electrophotographic photoreceptor which comprises, on an electroconductive support, a light sensitive layer containing a carrier generation material, a carrier transport material consisting of a carbazole derivative represented by the following general formula I: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and Ar are as defined in the specification.
摘要:
A nonaqueous electrolyte secondary battery comprising a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte is characterized in that the positive electrode active material is composed of a lithium trasition metal oxide having a layer structure and containing Li and Co and further contains a group IVA element and group IIA element of the periodic table.