Patents by Inventor Tapan DebRoy

Tapan DebRoy 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).

  • Publication number: 20240043702
    Abstract: A microbe-resistant coating composition or paint including an antimicrobial agent is described. The antimicrobial agent is an inorganic bismuth-containing compound, and may be used in conjunction with other bismuth-containing compounds or other biocidal agents or methods. A method of treating an electrodeposition system for bacterial and/or fungal contamination is also described by adding an antimicrobial agent to at least a portion of the electrodeposition system.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Inventors: Victoria J. GELLING, Tapan DEBROY, Chun REN, Mallory MESSIN
  • Patent number: 11566147
    Abstract: A two-component polyurethane coating composition is described. The composition includes a multifunctional isocyanate component and a multifunctional polyol component. The polyurethane described herein is an overindexed composition that may be used as a tiecoat in a conventional recoat or refinish process. The described composition provides improved adhesion between an aged coat and a newly applied coating.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 31, 2023
    Assignee: SWIMC LLC
    Inventors: Garry Edgington, Jason Lindquist, Tapan DebRoy
  • Patent number: 11466164
    Abstract: An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: October 11, 2022
    Assignee: The Sherwin-Williams Company
    Inventors: Victoria J. Gelling, Tapan DebRoy, Chun Ren
  • Publication number: 20210206997
    Abstract: A two-component polyurethane coating composition is described. The composition includes a multifunctional isocyanate component and a multifunctional polyol component. The polyurethane described herein is an overindexed composition that may be used as a tiecoat in a conventional recoat or refinish process. The described composition provides improved adhesion between an aged coat and a newly applied coating.
    Type: Application
    Filed: October 4, 2018
    Publication date: July 8, 2021
    Applicant: SWIMC LLC.
    Inventors: Garry Edgington, Jason Lindquist, Tapan DebRoy
  • Publication number: 20210139624
    Abstract: Compositions and methods involving latent base-catalyzed Michael addition reaction are described herein. The compositions described herein are derived from a Michael addition reaction and provide coatings, including primer coatings and direct-to-metal coatings that have optimal adhesion, corrosion resistance, and cure response when applied to a substrate and cured.
    Type: Application
    Filed: May 7, 2019
    Publication date: May 13, 2021
    Inventors: Jason LINDQUIST, Jason NESS, Josh HEWUSE, Gary EDGINGTON, Tapan DEBROY, James GALLAGHER
  • Publication number: 20200231823
    Abstract: An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Inventors: Victoria J. Gelling, Tapan DebRoy, Chun Ren
  • Patent number: 10655023
    Abstract: An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 19, 2020
    Assignee: The Sherwin Williams Company
    Inventors: Victoria J Gelling, Tapan DebRoy, Chun Ren
  • Publication number: 20200048494
    Abstract: A urethane composition useful in a variety of applications such as, for example, as a direct-to-metal coating, i.e. a coating composition that can be applied directly to the surface of a metal substrate without a primer or pretreatment is described. The coating composition preferably includes a polyol that is the reaction product of a resin of general formula (I) with an acid or a diol respectively, with the reaction being carried out in the presence of a catalyst. The coating composition also includes an isocyanate-functional compound as a crosslinker. The coating composition forms a corrosion-resistant film when applied directly to the substrate surface without a pretreatment or primer.
    Type: Application
    Filed: August 26, 2019
    Publication date: February 13, 2020
    Applicant: SWIMC LLC
    Inventors: Donald W. Boespflug, Tapan DebRoy, Dan Hartinger
  • Publication number: 20190218401
    Abstract: A corrosion-resistant coating composition is provided. The composition includes a binder system comprising at least one polymeric resin and an inorganic bismuth-containing compound. Methods of coating and using the coating composition are also provided.
    Type: Application
    Filed: February 10, 2017
    Publication date: July 18, 2019
    Inventors: Victoria J. GELLING, Tapan DEBROY, Phyllis A. LUNDEEN, Brandon J. BROGLY
  • Publication number: 20180237642
    Abstract: A microbe-resistant coating composition or paint including an antimicrobial agent is described. The antimicrobial agent is an inorganic bismuth-containing compound, and may be used in conjunction with other bismuth-containing compounds or other biocidal agents or methods. A method of treating an electrodeposition system for bacterial and/or fungal contamination is also described by adding an antimicrobial agent to at least a portion of the electrodeposition system.
    Type: Application
    Filed: May 23, 2016
    Publication date: August 23, 2018
    Applicant: VALSPAR SOURCING, INC.
    Inventors: VICTORIA J GELLING, TAPAN DEBROY, CHUN REN, MALLORY MESSIN
  • Publication number: 20170335120
    Abstract: An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Applicant: Valspar Sourcing, Inc.
    Inventors: Victoria J. Gelling, Tapan DebRoy, Chun Ren
  • Publication number: 20160090510
    Abstract: A urethane composition useful in a variety of applications such as, for example, as a direct-to-metal coating, i.e. a coating composition that can be applied directly to the surface of a metal substrate without a primer or pretreatment is described. The coating composition preferably includes a polyol that is the reaction product of a resin of general formula (I) with an acid or a diol respectively, with the reaction being carried out in the presence of a catalyst. The coating composition also includes an isocyanate-functional compound as a crosslinker. The coating composition forms a corrosion-resistant film when applied directly to the substrate surface without a pretreatment or primer.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 31, 2016
    Applicant: Valspar Sourcing, Inc.
    Inventors: Donald W Boespflug, Tapan DebRoy, Dan Hartinger
  • Publication number: 20080105856
    Abstract: Color fast or non-yellowing aromatic polyurethane compositions comprising a combination of certain benzotriazole ultraviolet light absorbers and hindered amine light stabilizer and a method for maintaining the color fastness of aromatic polyurethane compositions by incorporating the ultraviolet light absorber and hindered amine light stabilizer into an aromatic polyurethane composition are provided.
    Type: Application
    Filed: October 17, 2007
    Publication date: May 8, 2008
    Inventors: Tapan DebRoy, Michael Weismiller, Matthew Bonk