Patents by Inventor Donna C. TIPPMANN

Donna C. TIPPMANN 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).

  • THERMOPLASTIC ROOFING MEMBRANES FOR FULLY-ADHERED ROOFING SYSTEMS
    Publication number: 20220143962
    Abstract: A thermoplastic roofing membrane comprising a planar-shaped thermoplastic body, said planar body having opposed first and second external planar surfaces, where said first surface includes an ethylene-based olefinic block copolymer and a fatty acid amide, where the amount of fatty acid amide provides the surface with a coefficient of friction (ASTM D 1894) of less than 0.250.
    Type: Application
    Filed: February 10, 2020
    Publication date: May 12, 2022
    Inventors: Hao WANG, Donna C. TIPPMANN
  • THERMOPLASTIC ROOFING MEMBRANES FOR FULLY-ADHERED ROOFING SYSTEMS
    Publication number: 20220120084
    Abstract: A thermoplastic roofing membrane comprising a planar thermoplastic sheet, optionally having more than one layer, where at least one layer of the membrane includes an ethylene-based olefinic block copolymer, and where the sheet is characterized by a storage modulus of less than 450 MPa at 0° C.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: Hao WANG, Michael J. HUBBARD, Dwayne WACENSKE, Donna C. TIPPMANN
  • MULTI-LAYERED THERMOPLASTIC ROOFING MEMBRANES
    Publication number: 20220090382
    Abstract: A multi-layered membrane comprising skin layers including an ethylene-based olefinic block copolymer (EBOC); and two or more core layers including a propylene-based elastomer (PBE).
    Type: Application
    Filed: January 14, 2020
    Publication date: March 24, 2022
    Inventors: Hao WANG, Donna C. TIPPMANN, Michael J. HUBBARD
  • Thermoplastic roofing membranes for fully-adhered roofing systems
    Patent number: 11242684
    Abstract: A thermoplastic roofing membrane including a planar thermoplastic sheet, optionally having more than one layer, where at least one layer of the membrane includes an ethylene-based olefinic block copolymer, and where the sheet is characterized by a storage modulus of less than 450 MPa at 0° C.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: February 8, 2022
    Assignee: Firestone Building Products Company, LLC
    Inventors: Hao Wang, Michael John Hubbard, Dwayne Wacenske, Donna C. Tippmann
  • THERMOPLASTIC ROOFING MEMBRANES ADAPTED FOR ADHESION TO POLAR ADHESIVES
    Publication number: 20210300007
    Abstract: A method of preparing a thermoplastic roofing membrane, the method comprising (i) extruding a composition including a thermoplastic polymer and a mineral filler to form an extrudate; (ii) forming the extrudate into a sheet having first and second planar surfaces; (iii) allowing the sheet to at least partially cool; and (iv) mechanically treating the first planar surface of the sheet to thereby expose the mineral filler.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 30, 2021
    Inventors: Hao WANG, Donna C. TIPPMANN
  • THERMOPLASTIC ROOFING MEMBRANES FOR FULLY-ADHERED ROOFING SYSTEMS
    Publication number: 20180023301
    Abstract: A thermoplastic roofing membrane comprising a planar thermoplastic sheet, optionally having more than one layer, where at least one layer of the membrane includes an ethylene-based olefinic block copolymer, and where the sheet is characterized by a storage modulus of less than 450 MPa at 0° C.
    Type: Application
    Filed: February 8, 2016
    Publication date: January 25, 2018
    Applicant: FIRESTONE BUILDING PRODUCTS CO., LLC
    Inventors: Hao WANG, Michael John HUBBARD, Dwayne WACENSKE, Donna C. TIPPMANN