Patents by Inventor George A. Grozdits

George A. Grozdits 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).

  • Layer-by-layer nanocoating for paper fabrication
    Patent number: 7842162
    Abstract: A method is provided for manufacturing paper by means of layer-by-layer nanocoating techniques. The method comprises the sequential processing of an aqueous pulp of lignocellulose fibers which is first subjected to nanocoating by alternatively adsorbing onto the fibers multiple consecutively-applied layers of oppositely-charged nanoparticles, polymers and/or proteins thereby making a modified aqueous pulp of multi-layer nanocoated lignocellulose fibers, then draining the water out of the modified pulp to form sheets of multi-layer nanocoated fibers, and drying the formed sheets of multi-layer nanocoated fibers. The resulting dried sheets are then processed to make a finished paper that has superior physical strength and improved surface properties.
    Type: Grant
    Filed: March 11, 2006
    Date of Patent: November 30, 2010
    Assignee: Louisiana Tech University Foundation, Inc.
    Inventors: Yuri M. Lvov, George Grozdits
  • Isocyanate-carboxyl group-containing fatty compounds for manufacture of lignocellulosic composites
    Patent number: 4933232
    Abstract: A binder/release system for the preparation of molded articles, especially lignocellulosic composites, which utilizes in combination with isocyanate-based binders a fatty material as an internal and/or external release agent, the fatty material being at least one polymerized fatty acid and/or at least one polycarboxyl compound containing a polymeric fatty radical(s).
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: June 12, 1990
    Assignee: Jim Walter Research Corp.
    Inventors: Kenneth G. Trout, George A. Grozdits, Ernest K. Moss, James F. Daly
  • Isocyanate/surfactant-modified polyol binder for manufacture of lignocellulosic composites
    Patent number: 4898776
    Abstract: A synthetic board is prepared by a process of contacting lignocellulosic material with a binder and subsequently forming the treated material into a board by the application of heat and pressure, wherein (a) the binder comprises an organic polyisocyanate and a reactive hydrogen-containing component, especially an aromatic polyester polyol, and (b) the lignocellulosic material is additionally contracted with a surfactant.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: February 6, 1990
    Assignee: Jim Walter Reasearch Corp.
    Inventors: Michael G. Israel, George A. Grozdits, Kenneth G. Trout
  • Isocyanate-polyester polyol binder for manufacture of cellulosic composites
    Patent number: 4833182
    Abstract: A binder for use in the preparation of a synthetic board from cellulosic and/or lignocellulosic material comprising an organic polyisocyanate and a polyester polyol, especially an aromatic polyester polyol.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: May 23, 1989
    Assignee: Jim Walter Research Corp.
    Inventors: Michael G. Israel, George A. Grozdits, Ernest K. Moss
  • Isocyanate-carboxyl group-containing fatty compounds for manufacture of lignocellulosic composites
    Patent number: 4772442
    Abstract: A binder/release system for the preparation of molded articles, especially lignocellulosic composites, which utilizes in combination with isocyanate-based binders a fatty material as an internal and/or external release agent, the fatty material being at least one polymerized fatty acid and/or at least one polycarboxyl compound containing a polymeric fatty radical(s).
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: September 20, 1988
    Assignee: Jim Walter Research Corp.
    Inventors: Kenneth G. Trout, George A. Grozdits, Ernest K. Moss, James F. Daly