| Patent application number | Description | Published |
|---|
| 20080268363 | POROUS PARTICLES - The present invention is toner particle that includes a binder resin and nonionic organic polymer particles. The particle has porosity. | 10-30-2008 |
| 20080268367 | METHOD OF MAKING POROUS PARTICLES - The present invention is a method for the preparation of porous particles that includes dissolving a polymer material in a first organic solvent and adding a second organic solvent and nonionic organic polymer particles to form an organic phase. The organic phase is dispersed in an aqueous phase that includes a particulate stabilizer to form a dispersion and the dispersion is homogenized. The first and second organic solvents are evaporated and the product is recovered. | 10-30-2008 |
| 20090087596 | FUSIBLE POROUS POLYMER PARTICLES FOR INKJET RECEIVERS - The present invention is an inkjet recording element including a support having thereon an image-receiving layer having porous fusible polymeric particles including a continuous phase binder polymer and a second phase including hydrocolloid, wherein the particles have a porosity of from 10 to 80 volume percent and a film forming binder. | 04-02-2009 |
| 20090098288 | METHOD FOR MANUFACTURING POROUS PARTICLES WITH NON-POROUS SHELL - The present invention is core-shell polymer particles comprising a common binder polymer for the core and the shell wherein the core has a porosity and the shell is non-porous The particles have a porosity from 10 to 70 percent. | 04-16-2009 |
| 20090098382 | POROUS PARTICLES WITH NON-POROUS SHELL - The present invention is core-shell polymer particles comprising a common binder polymer for the core and the shell wherein the core has a porosity and the shell is non-porous The particles have a porosity from 10 to 70 percent. | 04-16-2009 |
| 20090162775 | INK WITH SOLID PHASE AND LIQUID PHASE - The present invention is an ink comprising a solid phase and a liquid phase wherein the solid phase comprises a polymeric binder and the liquid phase comprises oil and a pigment, the solid phase and the liquid phase forming a discrete particle having multiple domains of the liquid phase. | 06-25-2009 |
| 20090162779 | METHOD OF MANUFACTURING INK - The present invention is a method of manufacturing ink. The method includes providing a first organic phase of a solvent containing a dissolved polymer, an oil and a pigment. The organic solvent is dispersed in an aqueous phase containing a stabilizer to form an emulsion containing droplets of the organic phase. The solvent is removed from the droplets to form discrete particles having multiple domains of oil and pigment. | 06-25-2009 |
| 20090286911 | WAX DISPERSIONS FOR TONERS - The present invention provides a dispersion comprising wax particles dispersed with a polymeric dispersant in a water immiscible solvent, wherein the dispersant comprises a wax-compatible polyolefin segment and a polyester compatible oleophilic polar segment. The invention is further directed towards a method of manufacturing such a wax dispersion, and towards methods of manufacturing wax-containing polymer particles by limited coalescence processes employing such a wax dispersion. In particular embodiments, the invention is directed towards chemically prepared toner derived from wax dispersions of the invention that shows improved toner performance. | 11-19-2009 |
| 20100021838 | POLYMER PARTICLES WITH ADDITIVES ENCAPSULATED IN MICROVOIDS - Porous particles comprising a polymer binder and at least one additive distinct from any pore stabilizing compound present in the particle, wherein: the polymer binder comprises a solid compositionally continuous phase having an external particle surface; discrete pores are dispersed within the solid compositionally continuous phase, forming internal pore surfaces; and the at least one additive is present primarily in the discrete pores. The additive may further preferably not be present in the solid compositionally continuous phase, and be substantially absent from the external particle surface. A toner set for forming a color electrophotographic image comprising a plurality of different colored toners, where at least one of the different colored toners comprise such porous particles comprising additives, and in a particular embodiment wherein at least two different colored toners each comprise different pigments present primarily in the internal pores. A process of making such porous particles. | 01-28-2010 |
| 20100159384 | ENHANCED FUSING FOR ELECTROPHOTOGRAPHIC TONERS - An electrophotographic method for producing fused toner images on a receiver medium comprising the steps of: forming an electrostatic image pattern on an image forming member; developing the image pattern on the image forming member with fusible toner particles thereby forming a toner image thereon; transferring the toner image to the receiver medium; and heating the toner image to form a fused toner image on the receiver medium, wherein an amount of a plasticizer is added to the toner particles of the toner image after formation of the toner image on the image forming member and prior to or concurrent with fusing of the transferred toner image on the receiver medium, further wherein the amount of plasticizer added is effective in lowering the Tg of the toner below that of the toner under prevailing ambient conditions in the absence of the added plasticizer. The current invention overcomes the limitations of the prior art because the plasticizer is added immediately before fusing, thus avoiding toner clumping upon storage, as well as eliminating the high cost associated with a custom manufactured receiver that already contains plasticizer. | 06-24-2010 |
| 20100279225 | METHOD OF FILTERING POROUS PARTICLES - The present invention is a method of manufacturing porous polymer particles comprising: forming a dispersion of porous polymer particles in an external aqueous phase, wherein individual porous particles each comprise a continuous polymer phase and internal pores containing an internal aqueous phase; and filtering the dispersion of porous polymer particles with a filter to remove the external aqueous phase, wherein the filtering is done while agitating the porous particles. | 11-04-2010 |
| 20110123920 | TONER POROUS PARTICLES CONTAINING HYDROCOLLOIDS - The present invention is toner particle that includes a continuous phase of binder polymer and a second phase of hydrocolloid. The particle has a porosity of at least 10 percent. | 05-26-2011 |
