摘要:
An organophotoreceptor that includes: (a) a charge transport compound having the formula where n is an integer between 2 and 6, inclusive; R1 is an aryl group; R2 is a sulfolanyl group; a pyrrolyl group; a tetrazolyl group; a benzotriazolyl group; a 4-(9H-fluoren-9-ylidene)benzyl group; a stilbenyl group; an alkylsulfonylphenyl group, an arylsulfonylphenyl; or a pyrazolyl group, with the proviso that when R2 is an alkylsulfonylphenyl group or an arylsulfonylphenyl, R1 may be hydrogen, an alkyl group, or an aryl group; X is an alkylene linking group having the formula —(CH2)m—, branched or linear, where m is an integer between 0 and 20, inclusive; and Y is a bond, C, N, O, S, a branched or linear —(CH2)p— group where p is an integer between 0 and 10, an aryl group, a cycloalkyl group, a cyclosiloxyl, a heterocyclic group, or a CR7 group where R7 is H, an alkyl group, or aryl group; (b) a charge generating compound; and (c) an electrically conductive substrate.
摘要:
This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a novel charge transport compound having the formula where X is a divalent hydrocarbon group of 1 to 30 carbon atoms, or a divalent hydrocarbon group of 1 to 30 carbon atoms where there is at least one substitution of a carbon atom by a heteroatom provided that no two heteroatoms may be adjacent within the backbone of an aliphatic divalent hydrocarbon radical, R1 is an aryl group or a heterocyclic group, R2 is a (N,N-disubstituted)arylamine group, and R3 is an epoxy group; and (b) a charge generating compound. The epoxy group can be reacted with a functional group within the polymer to form a polymeric charge transport compound either directly or through a crosslinking agent.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a polymeric charge transport material having the formula where n is a distribution of integers between 1 and 100,000 with an average value of greater than one; Y comprises an aromatic group; X1 and X2, each independently, is a bond or a linking group; Q1 and Q2 are, each independently, O, S, or NR; and R, R1, and R2 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, a heterocyclic group, or an aromatic group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and methods of preparing the polymeric charge transport material are described.
摘要:
An organophotoreceptor comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a charge transport material with the formula where X is a linking group having the formula —(CH2)m—, branched or linear, where m is an integer between 0 and 20, inclusive, and one or more of the methylene groups is optionally replaced by O, S, C═O, O═S═O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, a NR3 group, a CHR4 group, or a CR5R6 group where R3, R4, R5, and R6 are, independently, H, hydroxyl group, thiol group, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group; R1 and R2 are independently a hydrogen, a halogen, an alkyl group, an aryl group, an alkaryl group, an aromatic group or a heterocyclic group; Y is an aromatic group; and n is a distribution of integer values greater than 2; and (b) a charge generating compound. The charge transport material can be crosslinked with a polymer binder either directly or through a crosslinking agent.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where n is an integer between 2 and 6, inclusive; R1 and R2 are, independently, H, halogen, carboxyl, hydroxyl, thiol, cyano, nitro, aldehyde group, ketone group, an ether group, an ester group, a carbonyl group, an alkyl group, an alkaryl group, or an aryl group; X is a linking group having the formula —(CH2)m—, branched or linear, where m is an integer between 0 and 20, inclusive, and one or more of the methylene groups can be optionally replaced by O, S, C═O, O═S═O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, a NR3 group, a CHR4 group, or a CR5R6 group where R3, R4, R5, and R6 are, independently, H, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group; Y comprises a bond, C, N, O, S, a branched or linear —(CH2)p— group where p is an integer between 0 and 10, an aromatic group, a cycloalkyl group, a heterocyclic group, or a NR9 group where R9 is hydrogen atom, an alkyl group, or aryl group, wherein Y has a structure selected to form n bonds with the corresponding X groups; and Z is a fluorenylidene group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
摘要:
This invention includes an organophotoreceptor having an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a polymeric charge transport composition with the formula where Y1 and Y2 are, each independently, a bond, a —CR1═N—NR2— group, or a —CR3═N—N═CR4— group; R, R′, R″, R1, R2, R3, and R4 comprise, each independently, H, an alkyl group, an alkenyl group, a heterocyclic group, an aromatic group, or a part of a ring group; X1 and X2 are, each independently, a linking group; T2 comprises a thiiranyl group, H, an alkyl group, an alkenyl group, or an aromatic group; Ar comprises an aromatic group; Z is a bridging group; and n is a distribution of integers between 1 and 100,000 with an average value at least 2; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging processes are also described.
摘要:
This invention relates to a novel electrophotographic imaging process that includes: (a) applying an electrical charge to a surface of an organophotoreceptor comprising: (i) a charge transport composition comprising molecules having the formula where the average n is between 1 and 1000; R1 and R2 are, independently, hydrogen, alkyl, unsaturated hydrocarbon, ether, cycloalkyl, or aryl; X is a bis(fluorene-4-carboxyl)alkane group; Y is a sulfonyldiphenylene; Z is X=O or two hydrogens; and Q is O or N—N(R1)—Y—N(R2)—NH2; (ii) a charge generating compound; and (iii) an electrically conductive substrate over which said charge transport composition and said charge generating compound are located; (b) imagewise exposing said surface of said organophotoreceptor to radiation to dissipate charge in selected areas and thereby form a pattern of charged and uncharged areas on said surface; (c) contacting said surface with a toner to create a toned image; and (d) transferring said toned image to a substrate.
摘要翻译:本发明涉及一种新颖的电子照相成像方法,其包括:(a)将电荷施加到有机光感受器的表面,包括:(i)电荷传输组合物,其包含具有下式的分子,其中平均n在1和1000之间; R 1和R 2分别独立地为氢,烷基,不饱和烃,醚,环烷基或芳基; X是双(芴-4-羧基)烷烃基团; Y是磺酰基二亚苯基; Z是X = O或两个氢; 并且Q是O或N-N(R 1 H 2)-Y-N(R 2 H 2)-NH 2; (ii)电荷产生化合物; 和(iii)所述电荷输送组合物和所述电荷产生化合物所在的导电基底; (b)将所述有机光感受器的所述表面成像曝光于辐射以在选定区域中散发电荷,从而在所述表面上形成带电和不带电区域的图案; (c)使所述表面与调色剂接触以产生调色图像; 和(d)将所述调色图像转印到基底上。
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where n is an integer between 2 and 6, inclusive; R1 and R2 are, independently, H, halogen, carboxyl, hydroxyl, thiol, cyano, nitro, aldehyde group, ketone group, an ether group, an ester group, a carbonyl group, an alkyl group, an alkaryl group, or an aryl group; X is a linking group having the formula —(CH2)m—, branched or linear, where m is an integer between 0 and 20, inclusive, and one or more of the methylene groups can be optionally replaced by O, S, C═O, O═S═O, urethane, urea, an ester group, a NR3 group, a CHR4 group, or a CR5R6 group where R3, R4, R5, and R6 are, independently, H, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group; Y comprises a bond, C, N, O, S, a branched or linear —(CH2)p— group where p is an integer between 0 and 10, an aromatic group, a cycloalkyl group, a heterocyclic group, or a NR7 group where R7 is hydrogen atom, an alkyl group, or aryl group, wherein Y has a structure selected to form n bonds with the corresponding X groups; and Z is a fluorenylidene group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
摘要:
Charge transport compounds are described that have a multiple number of hydrazone-bridged heterocyclic groups (especially julolidine groups, carbazole groups, triarylamine groups and (N,N-disubstituted)arylamine groups such as dialkarylamine groups (e.g. dimethylphenylamine; methylethylphenylamine, dipropylphenylamine, ethylepropylphenylamine, ethylbutylnaphthylamine, etc.), alkyldiarylamine groups (e.g. methyldiphenylamino, ethyldiphenylamino, etc), and triarylamino groups (e.g., triphenyl amino, trinaphthylamino, etc)) connected by a central bridging group. An example of charge transport compounds are those having the following generic formula: (R—Q)n−Y Formula I wherein R is selected from the group consisting of julolidine ring groups, carbazole ring groups, and and (N,N-disubstituted)arylamine groups; Q comprises an aromatic hydrazone linking group, such as Y comprises a bridging group between R—Q— groups, such as a bond, carbon atom, nitrogen atom, oxygen atom, sulfur atom, a methylene group; Z is an aryl group, preferably a phenyl group or naphthyl group; X is a linking group, preferably a methylene group, and for example having the formula —(CH2)m— (branched or linear), where m is an integer between 0 and 20, inclusive, and one or more of the methylene groups is optionally replaced by an oxygen atom, a carbonyl group, urethane, urea, an ester group, a —NR6 group, a CHR7 group, or a CR8R9 group where R6, R7, R8, and R9 are, independently, H, an alkyl group, or aryl group; and n is an integer between 2 and 6, inclusive. An organic photoreceptor includes that compound and (b) a charge generating compound; and (c) an electrically conductive substrate.
摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Y1 and Y7 comprise, each independently, a carbazolyl group; X1 and X2, each independently, are a bridging group; E1 and E2, comprise, each independently, an epoxy group; and Z is a linking group; and (b) a charge generating compound. Organophotoreceptors with the charge transport material crosslinked to a polymeric binder are also described. Corresponding electrophotographic apparatuses and imaging methods are described.