Patents by Inventor Alan M. Piwowar

Alan M. Piwowar 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: 11932775
    Abstract: A curable coating composition is provided having multi-functionalized acrylic copolymer and silicone imine resin curing agents. The acrylic copolymer of the curable coating composition has, in polymerized form, epoxy functionalized groups and cure compatibility groups and the silicone imine forms an amino-functional silicone in the presence of water. The coating compositions are useful in the field of superior weatherable and durable coatings and are useful to replace isocyanate-containing polyurethane based coatings. Also provided are coated articles produced from the curable composition.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: March 19, 2024
    Assignees: Dow Global Technologies LLC, Dow Siliicones Corporation
    Inventors: Alan M. Piwowar, Ray E. Drumright, Erin B. Vogel, Gary M. Wieber, Patrick J. Fryfogle, Yanxiang Li, Susan M. Machelski, Paul J. Popa, Adam C. Tomasik, Gerald Lawrence Witucki
  • Publication number: 20230151549
    Abstract: The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.
    Type: Application
    Filed: April 15, 2021
    Publication date: May 18, 2023
    Inventors: Alan M. Piwowar, Ray E. Drumright, Christina N. Ellison, David L. Malotky, Jonathan F. Mason, Hari Katepalli, Luqing Qi, Houxiang Tang, Robert R. Bills
  • Patent number: 11492525
    Abstract: An adhesive composition including an epoxy-based adhesive polymer and a phosphorous element-containing compound; a process for making the adhesive composition; a process for increasing the corrosion resistance property of the adhesive composition; and a process for bonding a metal substrate with the adhesive composition to increase the corrosion resistance of the substrate by at least 40 percent.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: November 8, 2022
    Assignees: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC
    Inventors: Alan M. Piwowar, Andrew R. Kneisel, Lirong Zhou, Michael R. Golden
  • Publication number: 20210261818
    Abstract: A curable coating composition is provided having multi-functionalized acrylic copolymer and silicone imine resin curing agents. The acrylic copolymer of the curable coating composition has, in polymerized form, epoxy functionalized groups and cure compatibility groups and the silicone imine forms an amino-functional silicone in the presence of water. The coating compositions are useful in the field of superior weatherable and durable coatings and are useful to replace isocyanate-containing polyurethane based coatings. Also provided are coated articles produced from the curable composition.
    Type: Application
    Filed: July 17, 2019
    Publication date: August 26, 2021
    Inventors: Alan M. Piwowar, Ray E. Drumright, Erin B. Vogel, Gary M. Wieber, Patrick J. Fryfogle, Yanxiang Li, Susan M. Machelski, Paul J. Popa, Adam C. Tomasik, Gerald Lawrence Witucki
  • Publication number: 20210189201
    Abstract: An adhesive composition including an epoxy-based adhesive polymer and a phosphorous element-containing compound; a process for making the adhesive composition; a process for increasing the corrosion resistance property of the adhesive composition; and a process for bonding a metal substrate with the adhesive composition to increase the corrosion resistance of the substrate by at least 40 percent.
    Type: Application
    Filed: July 20, 2018
    Publication date: June 24, 2021
    Applicants: DDP SPECIALTY ELECTRONICS MATERIALS US, LLC, DDP SPECIALTY ELECTRONICS MATERIALS US 8, LLC
    Inventors: Alan M. Piwowar, Andrew R. Kneisel, Lirong Zhou, Michael R. Golden