Patents by Inventor Keith Rawlins

Keith Rawlins 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).

  • Polyamine additive
    Patent number: 11820845
    Abstract: Polyamine additives are disclosed that are useful to provide early water resistant to drying anionically colloidally stabilized polymer dispersions in aqueous media. The polyamines are polymerization products from ethylenically unsaturated monomers with pendant tertiary amine groups with ethylenically unsaturated monomers with pendant poly(alkylene oxide) chains of 88 to 1200 g/mole molecular weight.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 21, 2023
    Assignee: LUBRIZOL ADVANCED MATERIALS, INC
    Inventors: Shui-Jen R. Hsu, Dominic Cremona, Darlene D. Rota, Adlai J. Perry, Keith Rawlins, Stephan A. Horvath
  • Fast Drying Waterborne Coatings
    Publication number: 20220033638
    Abstract: Coating and ink formulations are disclosed that are comprised of an anionically colloidally stabilized copolymer dispersion, a polyamine additive that can react with anionic groups, and a volatile base that can help shift the pH of the copolymer dispersion early in the drying process of films or coatings from the copolymer dispersion. The formulations are used in construction and roof coatings.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 3, 2022
    Inventors: Shui-Jen R. Hsu, Dominic Cremona, Darlene D. Rota, Adlai J. Perry, Keith Rawlins
  • POLYAMINE ADDITIVE
    Publication number: 20210395417
    Abstract: Polyamine additives are disclosed that are useful to provide early water resistant to drying anionically colloidally stabilized polymer dispersions in aqueous media. The polyamines are polymerization products from ethylenically unsaturated monomers with pendant tertiary amine groups with ethylenically unsaturated monomers with pendant poly(alkylene oxide) chains of 88 to 1200 g/mole molecular weight.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 23, 2021
    Inventors: Shui-Jen R. Hsu, Dominic Cremona, Darlene D. Rota, Adlai J. Perry, Keith Rawlins, Stephan A. Horvath
  • PRIMERS COMPRISING CERIUM PHOSPHATE
    Publication number: 20110171388
    Abstract: A coating composition comprising: (i) at least one polyepoxide; (ii) at least one polyvinyl butyral resin; (iii) a corrosion inhibiting amount of cerium phosphate; (v) phosphoric acid; (v) a water miscible organic solvent; and (vii) water; wherein the coating composition is free of hexavalent chromium.
    Type: Application
    Filed: January 5, 2011
    Publication date: July 14, 2011
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Keith A. Rawlins, Wai-Kwong Ho, Joseph K. Walker, Charles H. Simpson, Frank K. Bonney
  • PRIMERS COMPRISING CERIUM MOLYBDATE
    Publication number: 20110165330
    Abstract: A coating composition comprising: (i) at least one polyepoxide; (ii) at least one polyvinyl butyral resin; (iii)a corrosion inhibiting amount of cerium molybdate; (v) phosphoric acid; (v) a water miscible organic solvent ; and (vii) water; wherein the coating composition is free of hexavalent chromium.
    Type: Application
    Filed: January 5, 2011
    Publication date: July 7, 2011
    Applicant: The Sherwin-Williams Company
    Inventors: Keith A. Rawlins, Wai-Kwong Ho, Joseph K. Walker, Charles H. Simpson, Frank K. Bonney