摘要:
To provide an electrophotographic photoreceptor having a high sensitivity, a good balance of various electric properties such as chargeability and residual potential, a good stability of the coating solution, and an excellent light resistance.An electrophotographic photoreceptor comprising an electroconductive support having thereon a photosensitive layer, wherein the photosensitive layer contains a compound represented by the following formula (1): (wherein R1 represents a group having a chiral center, R2 represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may have a substituent, R3 and R4 each independently represents an alkylene group which may have a substituent, or an arylene group which may have a substituent, and R5, R6, R7 and R8 each independently represents an alkyl group which may have a substituent, or an aryl group which may have a substituent, and at least one member of R5 to R8 is an aryl group having a substituent).
摘要:
To realize an electrophotographic photoreceptor excellent in abrasion resistance, the photosensitive layer of the photoreceptor comprises a polyester resin containing a repeating structural unit represented by the formula (1) and a hydrazone compound. (In the formula (1), Ar1 to Ar4 each represents, independently of each other, an arylene group which may have a substituent. X1 represents a bivalent group (including a single bond) and X2 represents a bivalent group (including a single bond) with 3 or less atoms.)
摘要:
An electrophotographic photoreceptor is provided which comprises a conductive substrate and a photosensitive layer formed thereover, wherein the photosensitive layer contains at least a polyarylate resin having a repeating structure represented by the following formula [1] and a compound represented by the following formula [6]. This photoreceptor has excellent abrasion resistance under practical load, has high mechanical strength, and further has highly excellent electrical properties.
摘要:
To realize an electrophotographic photoreceptor excellent in abrasion resistance, the photosensitive layer of the photoreceptor comprises a polyester resin containing a repeating structural unit represented by the formula (1) and a hydrazone compound. (In the formula (1), Ar1 to Ar4 each represents, independently of each other, an arylene group which may have a substituent. X1 represents a bivalent group (including a single bond) and X2 represents a bivalent group (including a single bond) with 3 or less atoms.)
摘要:
An electrophotographic photoreceptor comprising a conductive support and a photosensitive layer formed thereon, wherein the photosensitive layer comprises a polyarylate resin having a repeating structure represented by the following formula [1] and a compound represented by the following formula [6]. This electrophotographic photoreceptor has excellent wearing resistance under load in the practical use of the photoreceptor and has high mechanical strength and extremely satisfactory electrical characteristcis. [1] [6]
摘要:
To provide an electrophotographic photoreceptor having a high sensitivity, a good balance of various electric properties such as chargeability and residual potential, a good stability of the coating solution, and an excellent light resistance.An electrophotographic photoreceptor comprising an electroconductive support having thereon a photosensitive layer, wherein the photosensitive layer contains a compound represented by the following formula (1): (wherein R1 represents a group having a chiral center, R2 represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may have a substituent, R3 and R4 each independently represents an alkylene group which may have a substituent, or an arylene group which may have a substituent, and R5, R6, R7 and R8 each independently represents an alkyl group which may have a substituent, or an aryl group which may have a substituent, and at least one member of R5 to R8 is an aryl group having a substituent).
摘要:
An electrophotographic photoreceptor which is excellent in sensitivity, durability and environmental capability comprises a photosensitive layer containing dihydroxysilicon phthalocyanine which is monoclinic and has lattice constants a=12.8.+-.1.ANG., b=14.5.+-.1.ANG., c=6.8.+-.1.ANG. and .beta.=94.4.+-.1.degree.. ##STR1##
摘要:
To provide an electrophotographic photoreceptor having a high sensitivity, a good balance of various electric properties such as chargeability and residual potential, a good stability of the coating solution, and an excellent light resistance.An electrophotographic photoreceptor comprising an electroconductive support having thereon a photosensitive layer, wherein the photosensitive layer contains a compound represented by the following formula (1): (wherein R1 represents a group having a chiral center, R2 represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may have a substituent, R3 and R4 each independently represents an alkylene group which may have a substituent, or an arylene group which may have a substituent, and R5, R6, R7 and R8 each independently represents an alkyl group which may have a substituent, or an aryl group which may have a substituent, and at least one member of R5 to R8 is an aryl group having a substituent).
摘要:
To provide an electrophotographic photoreceptor having a high sensitivity, a good balance of various electric properties such as chargeability and residual potential, a good stability of the coating solution, and an excellent light resistance.An electrophotographic photoreceptor comprising an electroconductive support having thereon a photosensitive layer, wherein the photosensitive layer contains a compound represented by the following formula (1): (wherein R1 represents a group having a chiral center, R2 represents a hydrogen atom, an alkyl group which may have a substituent, or an aryl group which may have a substituent, R3 and R4 each independently represents an alkylene group which may have a substituent, or an arylene group which may have a substituent, and R5, R6, R7 and R8 each independently represents an alkyl group which may have a substituent, or an aryl group which may have a substituent, and at least one member of R5 to R8 is an aryl group having a substituent).
摘要:
A subject for the invention is to provide an electrophotographic photoreceptor which has high durability in exposure to ozone, NOx, etc., is excellent in mechanical properties including printing durability, wearing resistance, scratch resistance, and slip properties in repetitions of use, and further has excellent electrophotographic properties. The invention relates to an electrophotographic photoreceptor comprising an electro conductive substrate and at least a photosensitive layer formed thereover, characterized in that the photosensitive layer contains at least a polyarylate resin and an amine compound represented by a specific structure.