Patents by Inventor Kenneth Michael Donnelly

Kenneth Michael Donnelly 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).

  • Polymer-pigment composites
    Patent number: 6576051
    Abstract: Composite particles and a method of preparing the composite particles are provided. The composite particles contain titanium dioxide particles with adsorbed two-phase polymer particles. The two-phase polymer particles have a soft polymer phase and a hard polymer phase in which the weight ratio of the hard polymer phase to the soft polymer phase is in the range of 10:1 to 1:5. The composite particles containing the two-phase polymer particles have improved aqueous stability and provide coatings with improved scrub resistance.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: June 10, 2003
    Assignee: Rohm and Haas Company
    Inventors: James Keith Bardman, Ward Thomas Brown, Kenneth Michael Donnelly, Wei Zhang, Bernhard Helmut Lieser
  • Polymer-pigment composites
    Publication number: 20020096088
    Abstract: Composite particles and a method of preparing the composite particles are provided. The composite particles contain titanium dioxide particles with adsorbed two-phase polymer particles. The two-phase polymer particles have a soft polymer phase and a hard polymer phase in which the weight ratio of the hard polymer phase to the soft polymer phase is in the range of 10:1 to 1:5. The composite particles containing the two-phase polymer particles have improved aqueous stability and provide coatings with improved scrub resistance.
    Type: Application
    Filed: November 14, 2001
    Publication date: July 25, 2002
    Inventors: James Keith Bardman, Ward Thomas Brown, Kenneth Michael Donnelly, Wei Zhang, Bernhard Helmut Lieser