Patents by Inventor Revathi R. Tomko

Revathi R. Tomko 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: 10125287
    Abstract: Copolymers and latex paint compositions using such copolymers that are heat-age stable and provide good adhesion, block resistance, and hiding all while using lower amounts of titanium dioxide are described herein. In one aspect, the heat-age stable compositions include an acrylic, styrene acrylic, vinyl acrylic copolymer or blends thereof including, as additional polymerizable units, at least one polymerizable phosphate surfactant and at least one linear or branched hydrophobic monomer that are both polymerized into the acrylic, styrene acrylic, vinyl acrylic copolymer backbone.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 13, 2018
    Assignee: The Sherwin-Williams Company
    Inventors: Revathi R Tomko, Wanda J Smith, Kimberly A Koglin
  • Publication number: 20180002557
    Abstract: Copolymers and latex paint compositions using such copolymers that are heat-age stable and provide good adhesion, block resistance, and hiding all while using lower amounts of titanium dioxide are described herein. In one aspect, the heat-age stable compositions include an acrylic, styrene acrylic, vinyl acrylic copolymer or blends thereof including, as additional polymerizable units, at least one polymerizable phosphate surfactant and at least one linear or branched hydrophobic monomer that are both polymerized into the acrylic, styrene acrylic, vinyl acrylic copolymer backbone.
    Type: Application
    Filed: August 31, 2016
    Publication date: January 4, 2018
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: REVATHI R TOMKO, WANDA J SMITH
  • Publication number: 20180002558
    Abstract: Copolymers and latex paint compositions using such copolymers that are heat-age stable and provide good adhesion, block resistance, and hiding all while using lower amounts of pigment are described herein. In one aspect, the heat-age stable compositions include an acrylic, styrene acrylic, vinyl acrylic copolymer or blends thereof including, as additional polymerizable units, at least one polymerizable phosphate surfactant and at least one linear or branched hydrophobic monomer that are both polymerized into the acrylic, styrene acrylic, vinyl acrylic copolymer backbone.
    Type: Application
    Filed: April 20, 2017
    Publication date: January 4, 2018
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Revathi R. Tomko, Wanda J. Smith, Kimberly A. Koglin
  • Patent number: 9657184
    Abstract: Copolymers and latex paint compositions using such copolymers that are heat-age stable and provide good adhesion, block resistance, and hiding all while using lower amounts of pigment are described herein. In one aspect, the heat-age stable compositions include an acrylic, styrene acrylic, vinyl acrylic copolymer or blends thereof including, as additional polymerizable units, at least one polymerizable phosphate surfactant and at least one linear or branched hydrophobic monomer that are both polymerized into the acrylic, styrene acrylic, vinyl acrylic copolymer backbone.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 23, 2017
    Assignee: The Sherwin-Williams Company
    Inventors: Revathi R Tomko, Wanda J Smith, Kimberly A. Koglin
  • Publication number: 20100160480
    Abstract: A resin composition comprising an interpenetrating polymer network comprising: (a) 5 to 95 weight percent of a polyurethane prepolymer; (b) 5 to 95 weight percent of a waterborne polymer component; and (c) optionally, a chain extender or crosslinker; wherein either the polyurethane prepolymer has at least one functional group that is photopolymerizable or the waterborne polymer component has at least one functional group that is photopolymerizable; or wherein both the polyurethane prepolymer and waterborne polymer component have at least one functional group that is photopolymerizable.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Richard F. Tomko, Revathi R. Tomko
  • Publication number: 20080293848
    Abstract: A self-polishing anti-fouling marine coating composition that is free of heavy metal biocides. The coating composition comprises a polymer binder comprising a film forming polymer having a hydrolysable functional group on the polymer backbone; and a blend of at least two biocidally active materials, the blend comprising a 2-trihalogenomethyl-3-halogeno-4-cyanopyrrole compound and a second biocidally active material.
    Type: Application
    Filed: March 26, 2008
    Publication date: November 27, 2008
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Revathi R. Tomko, Dino D. Papagianidis, John A. Joecken, James M. Reuter
  • Patent number: 6191213
    Abstract: Low VOC penetrating compositions for staining and protecting porous substrates such as wood, concrete, cement, brick and the like, comprising aqueous dispersions of polyurethane-ureas.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: February 20, 2001
    Assignee: The Sherwin-Williams Company
    Inventors: Revathi R. Tomko, Barbara J. Varone, Robert A. Martuch
  • Patent number: 6166127
    Abstract: A process for producing a coating compositions having superior solvent resistance and film hardness comprising an interpenetrating network of a polyurethane component and a functionalized waterborne polymer, wherein the polyurethane component is prepared in the presence of the functionalized waterborne polymer and said polyurethane component and said waterborne polymer are crosslinked directly or indirectly via the chain extender.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: December 26, 2000
    Assignee: The Sherwin-Williams Company
    Inventor: Revathi R. Tomko
  • Patent number: 6022925
    Abstract: A process for producing a coating compositions for use over chalky substrates comprising a partial interpenetrating network of a polyurethane component and a waterborne polymer component, wherein the polyurethane component is prepared in the presence of the waterborne polymer component.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: February 8, 2000
    Assignee: The Sherwin-Williams Company
    Inventors: Revathi R. Tomko, Louisa D. DiCola, Lorette Madigan, David J. Tetzlaf
  • Patent number: 5912299
    Abstract: Low VOC compositions for coating, staining and protecting porous substrates such as wood, concrete, cement, brick and the like, comprising aqueous dispersions of polyurethane-ureas.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 15, 1999
    Assignee: The Sherwin-Williams Company
    Inventors: Revathi R. Tomko, Barbara J. Varone