Patents by Inventor John G. Tsavalas

John G. Tsavalas 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).

  • Paper coating compositions, coated papers, and methods
    Patent number: 8334047
    Abstract: Embodiments of the present disclosure include paper coating compositions, coated paper and/or paperboard, and methods of forming coated paper and/or paperboard with the paper coating compositions. The embodiments of the paper coating compositions contain high levels of hollow polymeric pigment relative to other pigments used in the paper coating composition (e.g., inorganic pigments). The paper coating compositions can provide the coated paper and/or paperboard with a wide variety of desirable features (e.g., high gloss, good smoothness, improved stiffness), while minimizing compaction (i.e., permanent deformation) of the underlying base paper.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: December 18, 2012
    Assignee: OMNOVA Solutions Inc.
    Inventors: John P. Kelly, Mark J. Pollock, Holly L. Dunnill, John G. Tsavalas, James G. Galloway, Alan B. Chaput, Jr., Timothy M. Dellinger, John A. Roper, III, Greg W. Welsch
  • Microencapsulation of amines
    Patent number: 8318060
    Abstract: A system for microencapsulation of an amine in a polymer shell in an aqueous environment.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: November 27, 2012
    Assignee: University of New Hampshire
    Inventors: Donald C. Sundberg, John G. Tsavalas, Jonathan K. Nguyen
  • PAPER COATING COMPOSITIONS, COATED PAPERS, AND METHODS
    Publication number: 20100136356
    Abstract: Embodiments of the present disclosure include paper coating compositions, coated paper and/or paperboard, and methods of forming coated paper and/or paperboard with the paper coating compositions. The embodiments of the paper coating compositions contain high levels of hollow polymeric pigment relative to other pigments used in the paper coating composition (e.g., inorganic pigments). The paper coating compositions can provide the coated paper and/or paperboard with a wide variety of desirable features (e.g., high gloss, good smoothness, improved stiffness), while minimizing compaction (i.e., permanent deformation) of the underlying base paper.
    Type: Application
    Filed: April 18, 2008
    Publication date: June 3, 2010
    Inventors: John P. Kelly, Mark J. Pollock, Holly L. Dunnill, John G. Tsavalas, James G. Galloway, Alan B. Chaput, JR., Timothy M. Dellinger, John A. Roper, III, Greg W. Welsch
  • Microencapsulation of amines
    Publication number: 20100061897
    Abstract: A system for microencapsulation of an amine in a polymer shell in an aqueous environment.
    Type: Application
    Filed: July 21, 2009
    Publication date: March 11, 2010
    Inventors: Donald C. Sundberg, John G. Tsavalas, Jonathan K. Nguyen
  • PAPER COATING COMPOSITIONS, COATED PAPERS, AND METHODS
    Publication number: 20080311416
    Abstract: Embodiments of the present disclosure include paper coating compositions, coated paper and/or paperboard, and methods of forming coated paper and/or paperboard with the paper coating compositions. The embodiments of the paper coating compositions contain high levels of hollow polymeric pigment relative to other pigments used in the paper coating composition (e.g., inorganic pigments). The paper coating compositions can provide the coated paper and/or paperboard with a wide variety of desirable features (e.g., high gloss, good smoothness, improved stiffness), while minimizing compaction (i.e., permanent deformation) of the underlying base paper.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 18, 2008
    Applicant: Dow Global Technologies Inc.
    Inventors: John P. Kelly, Mark J. Pollock, Holly L. Dunnill, John G. Tsavalas, James G. Galloway, Alan B. Chaput, JR., Timothy M. Dellinger, John A. Roper, III, Greg W. Welsch