摘要:
The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved interfacial layer formed from an aqueous-based coating solution which exhibits improved formation and coating properties, such as increased homogeneity and adhesion, and methods for making the same. The aqueous-based coating solution is environment-friendly and avoids the need to use more expensive organic solvents which involve higher safety risks in the manufacturing process.
摘要:
The present disclosure provides polymer-ionic complexes useful as charge control agents. Such charge control agents may be utilized with toner particles to impart excellent triboelectric charging characteristics to the toner.
摘要:
A process for preparing a latex includes polymerizing at least one monomer in the presence of an initiator to form a polymer emulsion; and adding an odor-scavenging bismuth compound to the formed polymer emulsion.
摘要:
A method of forming toner particles having surface particles attached thereto includes the steps of aggregating a material of at least one binder material and at least one colorant to produce toner particles, following aggregation, forming a mixture of the surface particles and the toner particles, and subjecting the mixture to a temperature above the glass transition temperature of the toner particles to coalesce the toner particles, whereby the surface particles become at least partially embedded within the surface of the toner particles. Toner particles prepared by such method include a core comprised of at least one binder and at least one colorant, and surface particles at an external surface of the toner particles, wherein at least about 50% of the surface particles are substantially completely covered by a portion of binder and a majority of the surface particles protrude from the toner particle surface a distance of at least 50% of the average particle size of the surface particles.
摘要:
A carrier comprised of a core and thereover a polymer generated from the reaction of a component containing amine groups and a component containing epoxy groups.
摘要:
A solution polymerization process for producing an organic polymer from styrene and at least one other polymerizable monomer comprising providing a liquid reaction medium suitable for conducting said polymerization, wherein the reaction medium contains styrene and a polymerizable monomer other than styrene; and, anionically polymerizing styrene and monomer, thereby forming random copolymer chains, wherein the total quantity of said styrene used in said polymerization is at least 50% by weight based on the total weight of styrene and other polymerizable monomers used in the polymerization. A second embodiment comprises a copolymer made by the above-described method.A third embodiment comprises a process for forming a toner, wherein the process comprises providing a liquid reaction medium suitable for conducting a solution polymerization, the reaction medium containing at least two polymerizable monomers; anionically polymerizing the monomers, thereby forming random and nearly random copolymer chains; finely dividing the copolymer into particles; and, incorporating said particles into a composition for use as a toner. A fourth embodiment comprises a toner made by extrusion with pigment or colorant and change control additive to form small particles.A fifth embodiment comprises a solution polymerization process for producing an organic polymer wherein a difunctional initiator is used to initiate said polymerization.
摘要:
An improved process for producing resin particles by a bead suspension polymerization reaction, and a polymer formed by the process wherein the process comprises: providing a liquid reaction medium suitable for conducting the polymerization; forming a suspension agent system in the reaction medium by an in situ interaction of at least two components in the reaction medium, for example, certain water soluble metal halides and polyvinylacetate derived polymers; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; and effecting polymerization of the monomer in the reaction medium to form low ash content beads of the polymer.A second embodiment comprises conducting a bead suspension polymerization process utilizing the suspension agent system formed in situ to limit the amount of fine particles of less than about 100 microns produced during the process comprising: providing a reaction medium suitable for conducting the polymerization in the reaction system; utilizing a suspension agent system which is appropriate for forming polymer beads having a desired size and for minimizing fine particle formation; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; effecting polymerization of the monomer in the reaction medium to form the beads of the polymer; and separating resin particles from the reaction followed by optional washing and drying.
摘要:
A process and system for making a resin emulsion suitable for use in forming toner particles including a silicone free anti-foam agent to control foam during formation of a polyester dispersion.