Patent application number | Description | Published |
20110079756 | POLYMER-ENCAPSULATED NANOPARTICLE SYSTEMS - A polymer-encapsulated nanoparticle system includes a non-aqueous medium; and polymer-encapsulated nanoparticles formed in situ in the non-aqueous medium. Each polymer-encapsulated particle has a diameter that is less than 1 micron, and includes a solid particle core, and a polymer coating established directly on the solid particle core. | 04-07-2011 |
20110242241 | INK COMPOSITION CONTAINING NON-VOC LIQUID CARRIER - Ink composition including non-VOC liquid carrier and method of making the same are disclosed. A disclosed example ink composition has a viscosity that is below about 70.0 cps and includes non-VOC liquid carrier, dispersing agents and pigment particles having an average size of less than about 10 μm. Also disclosed are method of use and method of making such ink composition containing non-VOC liquid carrier. | 10-06-2011 |
20110269901 | METHOD OF FORMING IONICALLY-CHARGED, ENCAPSULATED COLORANT NANOPARTICLES - A method of forming ionically-charged, colorant nanoparticles involves forming in-situ ionically-charged polyurethane monomers, and forming an emulsion including the ionically-charged polyurethane monomers and a colorant nanoparticle. The method further involves polymerizing or crosslinking the ionically-charged polyurethane monomers in the emulsion, where the polymerizing or crosslinking chemically attaches the ionically-charged polyurethane monomers to a surface of the colorant nanoparticle to form an ionically-charged encapsulation layer on the surface. | 11-03-2011 |
20120004345 | POLYMER-ENCAPSULATED COLORANT NANOPARTICLES - A polymer-encapsulated colorant nanoparticle includes a colorant nanoparticle core, and a polymer coating established on the colorant nanoparticle core. A negatively chargeable functional group is present on a surface of the polymer-encapsulated colorant nanoparticle. | 01-05-2012 |
20120105554 | INK FORMING METHOD - An ink forming method involves preparing a deagglomerated ink or a modified deagglomerated ink. The deagglomerated ink or the modified deagglomerated ink includes at least deagglomerated colorant particles and a liquid component. The deagglomerated colorant particles are chosen from pigment particles each encapsulated with a dispersant. The colorant particles have a particle size ranging from about 50 nm to about 500 nm. Prior to shipping and/or storing the deagglomerated ink or the modified deagglomerated ink, a portion of the liquid component is removed to form a concentrated ink that has a nonvolatile solids content ranging from about 40 wt % to about 90 wt % of the concentrated ink. | 05-03-2012 |
20120196222 | LIQUID ELECTROPHOTOGRAPHIC INK CONCENTRATES AND METHODS FOR PREPARING THE SAME - Liquid electrophotographic ink concentrates and methods of preparing the same are disclosed herein. An example of the method includes preparing a mixture of ink components using a first predetermined thermal profile. The ink components include a resin, a pigment, and a carrier. The method further includes preparing a microfluidizer with a composition at a temperature within a predetermined range and processing the mixture in the prepared microfluidizer to form the concentrate. Processing the mixture includes pressure-feeding the mixture into the prepared microfluidizer, passing the mixture through the prepared microfluidizer for a predetermined number of times, and utilizing a second predetermined thermal profile while passing the mixture through the prepared microfluidizer. A viscosity modifier is added to the mixture before and/or during the processing of the mixture. | 08-02-2012 |
20120199537 | APPARATUS, METHOD, AND SYSTEM FOR CONDUCTING SINGLE-PASS FILTRATION OF INK WASTE - An apparatus for conducting single-pass filtration of ink waste is disclosed. The apparatus includes: a filter connected to a housing unit and a plurality of absorbent layers within the housing unit, wherein the plurality of absorbent layers are in any order and include: a layer for removing metal and polar compounds, a layer for removing non-polar color impurities, a layer for removing acid functional components, a layer for removing additives with polar or protic functional groups, and a layer for removing residual water. A process and a system that include or utilize the apparatus are also disclosed. | 08-09-2012 |
20130016155 | INK SETAANM Tom; Howard S.AACI San JoseAAST CAAACO USAAGP Tom; Howard S. San Jose CA USAANM Chun; Doris Pik-YiuAACI Santa ClaraAAST CAAACO USAAGP Chun; Doris Pik-Yiu Santa Clara CA USAANM Ganapathiappan; SivapackiaAACI Los AltosAAST CAAACO USAAGP Ganapathiappan; Sivapackia Los Altos CA USAANM Ng; Hou T.AACI CampellAAST CAAACO USAAGP Ng; Hou T. Campell CA US - An ink set includes a first ink and a second ink, where each of the inks has a conductivity that is less than 200 pS/cm. The first ink includes a first pigment of a first color; a carrier fluid; and a concentration of a dispersant. The second ink includes a second pigment of a second color that is different from the first color; the same carrier fluid as the first ink; and substantially the same concentration of the dispersant as the first ink. | 01-17-2013 |
20130095239 | POLYMER-ENCAPSULATED NANOPARTICLE SYSTEMS - A method for forming a system including polymer-encapsulated nanoparticles includes forming an inverse mini-emulsion including a continuous phase of a non-aqueous medium and a discontinuous phase of at least: a plurality of nanoparticles having a polar surface, and at least one of i) a polar, water-soluble, or water-miscible monomer, or ii) a polar, water-soluble, or water-miscible pre-polymer. The method further includes initiating polymerization of the at least one of the monomer or the prepolymer to form a polymer coating on each of the plurality of nanoparticles in the non-aqueous medium. | 04-18-2013 |
20130230340 | LIQUID ELECTROPHOTOGRAPHIC INK CONCENTRATES AND METHODS FOR PREPARING THE SAME - A liquid electrophotographic ink concentrate includes non-volatile solids present in an amount ranging from about 20% to about 70% of the ink concentrate, the non-volatile solids including encapsulated pigment particles having a particle size ranging from about 500 nm to about 20 μm, and a viscosity modifier. The ink concentrate includes a balance of a liquid composition, the liquid composition including a carrier. The concentrate is dispersible in an ink vehicle to form a print-ready liquid electrophotographic ink having the non-volatile solids present in an amount ranging from about 0.5% to 5% of the print-ready liquid electrophotographic ink. | 09-05-2013 |
20130235132 | CONCENTRATED INKJET INK - A concentrated inkjet ink for packaging includes a liquid composition present in an amount that is less than 60 wt % of the concentrated inkjet ink, and nonvolatile solids present in an amount ranging from about 40 wt % to about 90 wt % of the concentrated inkjet ink. The nonvolatile solids include encapsulated pigment particles having a particle size ranging from about 50 nm to about 500 nm, and a dispersant. The concentrated inkjet ink is dispersible in an ink vehicle to form a print ready inkjet ink. | 09-12-2013 |
20130302733 | LIQUID ELECTROPHOTOGRAPHIC INK AND METHOD FOR MAKING THE SAME - A liquid electrophotographic ink is disclosed herein. One example of the liquid electrophotographic ink includes a non-polar carrier liquid; pigmented toner particles; a charge director; and polymer resin encapsulated metal oxide nanoparticles. A method for making the liquid electrophotographic ink is also disclosed herein. | 11-14-2013 |