Patents by Inventor Douglas E. Johnston

Douglas E. Johnston 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).

  • POLYSILOXANE MODIFIED POLYISOCYANATES FOR USE IN COATINGS
    Publication number: 20160024243
    Abstract: The invention relates to an isocyanate-terminated polysiloxane material that can preferably be used as a curing agent, hardener or co-reactant in coatings. The invention further relates to a method of manufacturing the isocyanate-terminated polysiloxane material by partially hydrolyzing a methoxy-functional polysiloxane such as a methyl phenyl polysiloxane, and reacting it with a polyisocyanate to yield the isocyanate-terminated polysiloxane hardener. The hardener can preferably be used with any isocyanate-reactive functional group of another component to form coating systems, including acrylics, polyesters, epoxies and urethanes.
    Type: Application
    Filed: February 20, 2014
    Publication date: January 28, 2016
    Inventors: Jasmine KEUK, Paul Anthony LUM, Larry Dale WYMAN, Roland L. GASMENA, Chiew W. KOAY, Douglas E. JOHNSTON, Carolina A. FLANIGAN
  • Polysiloxane modified polyisocyanates for use in coatings
    Patent number: 8859710
    Abstract: The invention relates to an isocyanate-terminated polysiloxane material that can preferably be used as a curing agent, hardener or co-reactant in coatings. The invention further relates to a method of manufacturing the isocyanate-terminated polysiloxane material by partially hydrolyzing a methoxy-functional polysiloxane such as a methyl phenyl polysiloxane, and reacting it with a polyisocyanate to yield the isocyanate-terminated polysiloxane hardener. The hardener can preferably be used with any isocyanate-reactive functional group of another component to form coating systems, including acrylics, polyesters, epoxies and urethanes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 14, 2014
    Assignee: Jones-Blair Company
    Inventors: Jasmine Keuk, Chiew W. Koay, Douglas E. Johnston, Carolina A. Flanigan, Larry Dale Wyman, Roland L. Gasmena, Paul Anthony Lum
  • Polysiloxane Modified Polyisocyanates for Use in Coatings
    Publication number: 20140275410
    Abstract: The invention relates to an isocyanate-terminated polysiloxane material that can preferably be used as a curing agent, hardener or co-reactant in coatings. The invention further relates to a method of manufacturing the isocyanate-terminated polysiloxane material by partially hydrolyzing a methoxy-functional polysiloxane such as a methyl phenyl polysiloxane, and reacting it with a polyisocyanate to yield the isocyanate-terminated polysiloxane hardener. The hardener can preferably be used with any isocyanate-reactive functional group of another component to form coating systems, including acrylics, polyesters, epoxies and urethanes.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Jones-Blair company
    Inventors: Jasmine Keuk, Chiew W. Koay, Douglas E. Johnston, Carolina A. Flanigan, Larry Dale Wyman, Roland L. Gasmena, Paul Anthony Lum