Patents Represented by Attorney Susan M. Zerull
  • Patent number: 5952093
    Abstract: A polymer composite comprises a polymer matrix having, dispersed therein, layers of an inorganic material derived from a multilayered inorganic material such as clay intercalated with an inorganic intercalant. The multilayered inorganic material may also be intercalated with an organic material.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: September 14, 1999
    Assignee: The Dow Chemical Company
    Inventors: Kevin L. Nichols, Chai-Jing Chou
  • Patent number: 5604070
    Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: February 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Prabhakara S. Rao, Valdis Mikelsons
  • Patent number: 5598272
    Abstract: A visual calibrator for a digital color imaging proof system includes a series of patches on a carrier layer, the patches composed of combinations of at least two colors in halftone or continuous print, and associated with at least some of the patches are alphanumeric markings which relate to specific changes in an imaging signal for adjustment of the imaging system to modify the color of a proof towards a desired target color.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: January 28, 1997
    Assignee: Imation, Inc.
    Inventors: Richard S. Fisch, David A. Larshus, John A. Sands, Mark E. VerMurlen
  • Patent number: 5589433
    Abstract: A vanadium oxide coating useful as an antistatic protection layer on a donor sheet or a receptor sheet of a thermal transfer system is provided. The preferred antistatic coating is formed from a composition of a vanadium oxide colloidal dispersion.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: December 31, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric D. Morrison, Jeffrey C. Chang, Linda K. Williams