Patents by Inventor Gordon Kotora

Gordon Kotora 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).

  • Patent number: 8507579
    Abstract: The present invention relates to an aqueous coating composition comprising a treated latex polymer dispersion with less than about 50 ppm of unreacted monomers. The latex polymer dispersion can be treated by various means, including stripping and chasing, to remove unreacted monomers from the dispersion. Unreacted monomers significantly contribute to paint odor. In an innovative aspect of the present invention, the synergistic combination of the treated latex dispersion with pigments and other low or zero-VOC additives results in an aqueous coating composition with de minimis levels of volatile emissions, low odor, and paint performance comparable to premium latex paints.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 13, 2013
    Assignee: Columbia Insurance Company
    Inventors: Robert J. Sheerin, Jean F. Mauck, Hrire Gharapetian, Gordon Kotora
  • Publication number: 20110098376
    Abstract: The present invention relates to an aqueous coating composition comprising a treated latex polymer dispersion with less than about 50 ppm of unreacted monomers. The latex polymer dispersion can be treated by various means, including stripping and chasing, to remove unreacted monomers from the dispersion. Unreacted monomers significantly contribute to paint odor. In an innovative aspect of the present invention, the synergistic combination of the treated latex dispersion with pigments and other low or zero-VOC additives results in an aqueous coating composition with de minimis levels of volatile emissions, low odor, and paint performance comparable to premium latex paints.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 28, 2011
    Inventors: Robert J. Sheerin, Jean F. Mauck, Hrire Gharapetian, Gordon Kotora
  • Publication number: 20040242725
    Abstract: A coating or a paste ink formulation is provided which contains tonically cross-linked polymers, wherein said ionic cross-linking is between functional acid and amino groups. In addition, a method of preparing a coating or a paste ink composition is also provided which includes: (a) providing polymers containing functional acid and/or amino groups; and(b) ionically cross-linking at least a portion of the acid groups with the amino groups.
    Type: Application
    Filed: October 18, 2001
    Publication date: December 2, 2004
    Inventors: Gordon Kotora, Edward Stone, Neil Young
  • Patent number: 6727295
    Abstract: Solvent-free, energy curable low viscosity gravure and non-conductive ink jet inks which contain a pigment; a rheological additive having the structure P—(U—Y)s, wherein P is the residue of an organic pigment or dye, Y is a polyalkylene oxide moiety, U is a linking moiety covalently bonding Y to P and s is an integer from 1 to 3; and an energy curable liquid vehicle which may be a cationic, thermal cationic or a free radical initiated polymerization system, cured by actinic radiation; and optionally containing a photoinitiating system.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: April 27, 2004
    Assignee: Sun Chemical Corporation
    Inventors: Mikhail Laksin, Subhankar Chatterjee, Russell J. Schwartz, Paul A. Merchak, Patrice Aurenty, Edward Stone, Gordon Kotora
  • Patent number: 6605652
    Abstract: An energy curable printing ink composition containing a branched polyester comprising monofunctional and difunctional components having an excess functionality of about 0.1 to 0.20. Also described is a method of reducing misting and/or dot gain in an energy curable printing ink composition by adding such branched polyesters to the composition.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: August 12, 2003
    Assignee: Sun Chemical Corporation
    Inventors: Edward Stone, Gordon Kotora, Neil Young
  • Patent number: 6489375
    Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: December 3, 2002
    Assignee: Sun Chemical Corporation
    Inventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
  • Patent number: 6451873
    Abstract: Lithographic printing ink formulations compatible with cationic catalysts containing a diluent and rheology modifying resins curable by cationic polymerization in the presence of water or fountain solution.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: September 17, 2002
    Assignee: Sun Chemical Corporation
    Inventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
  • Publication number: 20020068772
    Abstract: Solvent-free, energy curable low viscosity gravure and non-conductive ink jet inks which contain a pigment; a rheological additive having the structure P—(U—Y)s, wherein P is the residue of an organic pigment or dye, Y is a polyalkylene oxide moiety, U is a linking moiety covalently bonding Y to P and s is an integer from 1 to 3; and an energy curable liquid vehicle which may be a cationic, thermal cationic or a free radical initiated polymerization system, cured by actinic radiation; and optionally containing a photoinitiating system.
    Type: Application
    Filed: February 27, 2001
    Publication date: June 6, 2002
    Inventors: Mikhail Laksin, Subhankar Chatterjee, Russell J. Schwartz, Paul A. Merchak, Patrice Aurenty, Edward Stone, Gordon Kotora
  • Publication number: 20020040073
    Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.
    Type: Application
    Filed: September 20, 2001
    Publication date: April 4, 2002
    Inventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
  • Patent number: 6276273
    Abstract: A printing plate precursor for direct receipt of an image-wise applied ink receptive layer the precursor having a desorbable surfactant adsorbed on at least one surface in an amount effective to improve the resolution of the subsequently image-wise applied ink receptive layer. The printing plate precursor can be used to prepare a printing plate having improved resolution. The printing plate may be prepared by (a) applying a desorbable surfactant to at least one surface of a printing plate substrate, (b) removing non-adsorbed surfactant from the surface, (c) applying a fluid composition containing an ink receptive material onto at least a portion of the surface in the form of a desired image, thereby providing an ink receptive image layer; and (d) removing the desorbable surfactant from any area of the surface which does not form part of the desired image.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 21, 2001
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Patrice M. Aurenty, Roshanak Debeaud, Edward Stone, Gordon Kotora