Patents by Inventor Peter K. Smith

Peter K. Smith 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).

  • Isocyanate-reactive compositions, polyurethane foams formed therefrom, multi-layer composite articles that include such foams, and methods for their preparation
    Patent number: 11613604
    Abstract: Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: March 28, 2023
    Assignee: Covestro LLC
    Inventors: Peter K. Smith, Michael T. Wellman
  • ISOCYANATE-REACTIVE COMPOSITIONS, POLYURETHANE FOAMS FORMED THEREFROM, MULTI-LAYER COMPOSITE ARTICLES THAT INCLUDE SUCH FOAMS, AND METHODS FOR THEIR PREPARATION
    Publication number: 20220411564
    Abstract: Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 29, 2022
    Inventors: Peter K. Smith, Michael T. Wellman
  • Encapsulant material suitable for use under conditions of prolonged vacuum
    Patent number: 4383099
    Abstract: An encapsulant material suitable for use in space applications a polyurethane having according to the ESTEC specification a total mass loss of not greater than 1% and condensible volatiles content of not greater than 0.1% combined with a vibration performance characterised by a Q of from 4 to 15 and a peak frequency of 200 to 400 Hz when vibrated at 1g.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: May 10, 1983
    Assignee: E M I Limited
    Inventors: Agathangelos Hajimichael, Sidney Hopper, Peter K. Smith