Patents by Inventor Robert Francis Hoffman

Robert Francis Hoffman 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).

  • Catalyst compositions and methods for making foam
    Patent number: 10125234
    Abstract: A composition and process to make polyisocyanurate or polyurethane foam using a catalyst composition comprising at least one bismuth carboxylate catalyst and one or more co-catalysts selected from the group of alkali metal carboxylates and quaternary ammonium carboxylate salts, such that the resultant foam has improved insulation properties. The polyisocyanurate or polyurethane foams produced by this catalyst composition and method are useful for laminated boardstock, construction panels, appliance insulation, and spray-applied insulation.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 13, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Robert Francis Hoffman, James Douglas Tobias, Jean Louise Vincent, Timothy J. Miller
  • Catalyst Compositions and Methods for Making Foam
    Publication number: 20150240023
    Abstract: A composition and process to make polyisocyanurate or polyurethane foam using a catalyst composition comprising at least one bismuth carboxylate catalyst and one or more co-catalysts selected from the group of alkali metal carboxylates and quaternary ammonium carboxylate salts, such that the resultant foam has improved insulation properties. The polyisocyanurate or polyurethane foams produced by this catalyst composition and method are useful for laminated boardstock, construction panels, appliance insulation, and spray-applied insulation.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Robert Francis Hoffman, James Douglas Tobias, Jean Louise Vincent, Timothy J. Miller