Patents by Inventor T. Ng

T. Ng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070131580
    Abstract: Embodiments include a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.
    Type: Application
    Filed: November 14, 2005
    Publication date: June 14, 2007
    Inventors: Raj Patel, David Sanders, T. Ng, Stephan Drappel, Sandra Gardner, Sonja Hadzidedic, Louis Isganitis, Timothy Lincoln, Kevin Marcell
  • Publication number: 20070108097
    Abstract: Embodiments include a distilled wax having a crystallinity of from about 55 to about 100 percent, wherein the degree of crystallinity is calculated using the following formulas: [Heat of enthalpy (Hm) J/g/294 J/g]×100=degree of crystallinity (Xc); [Heat of recrystallization (Hrc) J/g/294 J/g]×100=degree of crystallinity (Xc); and Sc/(Sc+Sa)]×100%, wherein Sc is a diffraction peak area of a crystalline component of the wax and the Sa is a diffraction peak area of an amorphous component of the wax; and wherein the Mp, Mn and Mw of the wax are all within the range of from about 500 to about 800, and wherein the wax has a polydispersity of from about 1 to about 1.05.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 17, 2007
    Inventors: Raj Patel, David Sanders, T. Ng, Stephan Drappel, Sandra Gardner, Sonja Hadzidedic, Timothy Lincoln, Kevin Marcell, Louis Isganitis
  • Publication number: 20070111127
    Abstract: Embodiments include a toner with a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 17, 2007
    Inventors: Raj Patel, David Sanders, T. Ng, Stephan Drappel, Sandra Gardner, Sonja Hadzidedic, Louis Isganitis, Timothy Lincoln, Kevin Marcell
  • Publication number: 20060166121
    Abstract: A toner process that includes a first heating of a colorant dispersion, a first polyester resin free latex emulsion, a second polyester latex emulsion, and a wax dispersion in the presence of a coagulant containing a metal ion; adding a third polyester free latex; adding an organic sequestering compound or a silicate salt sequestering compound, followed by a second heating.
    Type: Application
    Filed: January 27, 2005
    Publication date: July 27, 2006
    Inventors: Raj Patel, Guerino Sacripante, Edward Zwartz, Enno Agur, Allan Chen, T. Ng, Kimberly Nosella, Cuong Vong, Karen Moffat
  • Publication number: 20060121383
    Abstract: Toner compositions provide a resin substantially free of cross linking; a cross linked resin; a wax; a coagulant; and a colorant; wherein the toner composition provides a fused image gloss of about 1 to about 20 gloss units.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 8, 2006
    Inventors: Edward Zwartz, T. McAneney, Daryl Vanbesien, Patricia Burns, T. Ng
  • Publication number: 20060063086
    Abstract: A process for preparing toner particles and compositions adapted for use in preparing toners that comprise a blend of a first polyester resin with a second sharp melting polyester resin. The process includes forming an emulsion resin comprising a branched polyester resin, a crystalline polyester resin, a colorant, and optionally a wax. The resin mixture is aggregated using an aggregating agent, such as a zinc acetate solution, to form an aggregate mixture. The aggregate mixture is then coalesced at a temperature of from about 5 to about 20° C. above the Tg of the emulsion resin to produce the resultant toner particles.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 23, 2006
    Inventors: Guerino Sacripante, Fatima Mayer, Kimberly Nosella, Valerie Farrugia, Raj Patel, Milan Maric, Allan Chen, Edward Zwartz, T. Ng