Patents by Inventor Alan Michael Batt

Alan Michael Batt 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).

  • Extruder process for making thermoplastic polyurethanes
    Patent number: 6534617
    Abstract: A method of manufacturing a thermoplastic polyurethane having a tensile strength of greater than 20 MPa is described, the method using a co-rotating reaction extruder to react the following: (i) an isocyanate having two isocyanate groups per molecule; (ii) a polydiene diol having from 1.6 to about 2 terminal hydroxyl groups per molecule and a number average weight of at least 500 and less than 20,000; and (iii) one or more chain extenders.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: March 18, 2003
    Assignee: KRATON Polymers U.S. LLC
    Inventors: Alan Michael Batt, Dale Lee Handlin, Michael Alan Masse, Christinus Cornelis van de Kamp