Patent application number | Description | Published |
20090246680 | LATEX PROCESSES - Processes for continuously forming latex emulsions useful in preparing toners are provided which do not require the use of solvents. | 10-01-2009 |
20100316946 | SELF EMULSIFYING GRANULES AND SOLVENT FREE PROCESS FOR THE PREPARATION OF EMULSIONS THEREFROM - A process for making a self-emulsifying composite suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralizing agent in the absence of water and an organic solvent to form a mixture, melt mixing the mixture, and forming a self-emulsifying composite of the melt mixed mixture such as a granule. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner. | 12-16-2010 |
20110027710 | SELF EMULSIFYING GRANULES AND PROCESS FOR THE PREPARATION OF EMULSIONS THEREFROM - A process for making a self-emulsifying granule suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralization agent and water in the absence of an organic solvent to form a mixture, melt mixing the mixture, and forming self-emulsifying granules of the melt mixed mixture. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner. | 02-03-2011 |
20110028570 | SELF EMULSIFYING GRANULES AND PROCESS FOR THE PREPARATION OF EMULSIONS THEREFROM - A process for making a self-emulsifying granule suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralization agent and water in the absence of an organic solvent to form a mixture, melt mixing the mixture, and forming self-emulsifying granules of the melt mixed mixture. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water. | 02-03-2011 |
20110028620 | PROCESSES FOR PRODUCING POLYESTER LATEXES VIA SOLVENT-FREE EMULSIFICATION - A process for making a latex emulsion suitable for use in a toner composition includes contacting a resin with a solid neutralizing agent in the absence of an organic solvent to form a mixture either via a co-feeding process or a pre-blend mixture, and adding a solid or aqueous surfactant to the pre-blend mixture or prior to melt mixing the mixture. | 02-03-2011 |
20110196066 | PROCESSES FOR PRODUCING POLYESTER LATEXES VIA SOLVENT-FREE EMULSIFICATION - A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one amorphous polyester resin with a viscosity reducing additive in the absence of an organic solvent to form a resin mixture either via an extruder or batch process, and adding a surfactant, neutralizing agent, and deionized water to the resin mixture. | 08-11-2011 |
20110286296 | SCREW EXTRUDER FOR CONTINUOUS AND SOLVENT-FREE RESIN EMULSIFICATION - A screw extruder is presented including a feed hopper for receiving materials and a body member having at least one supply port and at least one outlet port. The screw extruder also includes a screw positioned within the body member and movable along a channel defining a longitudinal axis. The screw extruder further includes a drive shaft for rotatably driving the screw along the channel. The screw extruder may be configured to mix the materials received via the feed hopper with a series of one or more forward, neutral, and reverse kneading elements. | 11-24-2011 |
20110313079 | SOLVENT-ASSISTED CONTINUOUS EMULSIFICATION PROCESSES FOR PRODUCING POLYESTER LATEXES - Various solvent-assisted extrusion processes are disclosed that are suitable for forming high yield, low coarse content, polyester latexes that may be utilized in forming a toner. | 12-22-2011 |
20120189956 | SOLVENT-FREE TONER PROCESSES - The present disclosure provides processes for producing toners. In embodiments, alkyl or alkyl ether sulfates are used in a solvent-free toner production process as surfactants to provide for higher parent particle charge without adversely affecting particle size, distribution control and circularity of the toner particles. The present disclosure also provides a new formulation and process for the emulsification of polyester resins to form nano-scale particles dispersed in water (latex) without the use of organic solvents by an extrusion process. | 07-26-2012 |
20130216946 | Continuous production of fine toner - A continuous process for forming fine toner using a twin screw extruder. | 08-22-2013 |
20140065537 | CONTINUOUS PROCESS FOR MANUFACTURING TONERS - The continuous process for manufacturing toners disclosed herein includes continuously feeding components of a toner composition into a feed section of a screw extruder at a controlled rate. The continuous process for manufacturing toners may include feeding the components of a toner composition into the feed section of a screw extruder without performing an external or secondary dispersion step. That is to say, the components of the toner composition may be fed directly into the extruder without using dispersions of individual components as used in batch processes. Rather, the toner components are added to the extruder in dry form, melt-mixed, and may be dispersed in aqueous form in the extruder. The process may produce micron-sized toner particles, thus no further size reduction may be necessary. | 03-06-2014 |
20140302432 | CONTINUOUS COALESCENCE PROCESSES - Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. The aggregated particle slurry is heated, then coalesced by raising the pH. The coalesced particles are homogenized and exit as a coalesced particle slurry. A multi-screw extruder is used for the coalescing. These processes are useful for providing coalesced particles such as toner compositions. | 10-09-2014 |
20140302436 | CONTINUOUS WAX DISPERSION PRODUCTION PROCESSES - Processes for continuously producing a wax dispersion are disclosed. A multi-screw extruder is used for the processes. A wax and a surfactant are fed into the extruder and melted together. Water is then added to form a dispersion. The wax particles are homogenized and exit the extruder to be passed through a quenching unit. The wax dispersion can be used to make toner compositions. | 10-09-2014 |
20140303298 | CONTINUOUS LATEX PRODUCTION PROCESSES - Processes for continuously producing latex emulsions are disclosed. A multi-screw extruder is used for the production of the emulsion. A resin is fed into the extruder, heated, optionally dissolved in a solvent, mixed with a base to neutralize the resin and form particles, then mixed with a surfactant and water to form a phase inverted emulsion (PIE). The PIE may be sent to a distillation column to separate out the solvent, and the resulting latex emulsion is then sent to a receiving tank. These processes are useful for making precursors for toner compositions. | 10-09-2014 |
20140335451 | TONER PARTICLES HAVING AN INCREASED SURFACE HARDNESS AND TONERS THEREOF - The present embodiments relate to toner particles having an increased surface hardness, and toners comprising said toner particles. More specifically, the present embodiments relate to toner particles having an average surface hardness of from about 130 mPa to about 250 mPa, comprising a core surrounded by a shell, wherein the shell comprises a crystalline resin. | 11-13-2014 |