摘要:
A charge transport layer for an imaging member comprising a first and second charge transport layer wherein the second charge transport layer comprises a charge transport component, a hindered phenol covalently bonded to a polymer, and an additional polymer binder other than the polymer containing the hindered phenol. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and excellent print quality.
摘要:
Disclosed is an ink jet printhead containing a polymer of the formula wherein P is a substituent which enables crosslinking of the polymer, a, b, c, and d are each integers of 0, 1, 2, 3, or 4, provided that at least one of a, b, c, and d is equal to or greater than 1 in at least some of the monomer repeat units of the polymer, A is or a mixture of wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units.
摘要:
Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, and a binder comprising a polymer of the formula wherein A is or a mixture of wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units.
摘要:
Disclosed is a polymer of the formula ##STR1## wherein A is ##STR2## or a mixture of ##STR3## wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as ##STR4## or mixtures thereof, and n is an integer representing the number of repeating monomer units.
摘要:
An electrophotographic imaging member including a support member, a charge generating layer and a charge transport layer, the charge transport layer including a cross linked matrix derived from a cross linkable aromatic polymer with substituent groups containing unsaturated carbon to carbon double bond, the substituent groups being free of any urethane linkage and attached to phenylene.
摘要:
An electrophotographic imaging member includinga substrate,a charge generating layer,a charge transport layer, andan overcoat layer includinga hole transporting hydroxy arylamine compound having at least two hydroxy functional groups,bis-(2-methyl-4-diethylaminophenyl)-phenylmethane anda cross linked polyamide film forming binder.A process for forming an overcoated imaging member is also disclosed.
摘要:
An electrophotographic imaging member including a substrate, a charge generating layer, a charge transport layer, and an overcoat layer including a polyvinyl butyral film forming binder, a cross linked polyamide film forming binder, and a hole transport material. A process for forming an overcoated imaging member is also disclosed.
摘要:
A process for fabricating an electrophotographic imaging member includingforming a charge generating layer,forming an undried charge transport layer coating by applying to the charge generating layer a solution selected from either or both the group consisting ofa solution including a charge transport molecule, a first film forming binder and at least a first solvent anda solution including a charge transporting polymer and at least a first solvent,forming an undried overcoat layer coating by applying to the undried charge transport layer coating an overcoat layer coating solution including a second film forming polymer and at least a second solvent, the charge transport molecule and first film forming polymer or either or both a charge transporting polymer being substantially insoluble in the second solvent and the second polymer being substantially insoluble in the first solvent,applying heat to both the undried charge transport layer coating and the undried overcoat layer coating to migrate the first solvent from the charge transport layer coating through the undried overcoat layer coating while maintaining the overcoat layer coating porous to migration of the first solvent through the overcoat layer coating until the charge transport layer is substantially dry,increasing the heat applied to the overcoat layer coating to form a substantially dry overcoat layer.
摘要:
A flexible electrophotographic imaging member including a supporting substrate coated with at least one imaging layer comprising hole transporting material containing at least two long chain alkyl carboxylate groups dissolved or molecularly dispersed in a film forming binder.