Patents by Inventor Heiner Wiecher

Heiner Wiecher 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).

  • METHOD OF PRODUCING A THERMOPLASTIC POLYURETHANE COMPOUND
    Publication number: 20080132591
    Abstract: A method of producing a thermoplastic polyurethane (TPU) compound including a polyurethane powder comprising microcellular polyurethane (MCU). The method minimizes discarding scrap MCU, reduces the cost of TPU articles by introducing a partial replacement for the TPU resin, and reduces injection-molding times to produce TPU articles. The TPU compound including polyurethane powder has superior melt temperature and compression set properties as compared to TPU compounds of similar Shore hardness that are free of the polyurethane powder. The invention also provides a TPU article including the TPU compound and a method of recycling a MCU foam.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Inventors: Gary M. Lawrence, Stephane Morin, Rabeh Elleithy, Anand G. Huprikar, Terry M. Kowalski, Heiner Wiecher