Patents by Inventor Michael Wreschinsky

Michael Wreschinsky 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).

  • Extrusion crystallization of an olefin polymer
    Patent number: 6485664
    Abstract: A method to melt process a thermoplastic, partially-crystalline, olefin polymer in a multi-temperature stage extruder wherein the polymer has a broad melting temperature range comprises setting the temperature profile of the extruder such that a portion of the polymer crystallizes in the extruder and passing the resulting partially-crystallized polymer through an extruder die.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: November 26, 2002
    Assignee: BP Corporation North America Inc.
    Inventor: Michael Wreschinsky