Patents by Inventor Juergen P. Nebe

Juergen P. Nebe 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).

  • Production of low density polypropylene foam
    Patent number: 4940736
    Abstract: A method of producing a foamed product having a density less than 0.2 g/cm.sup.3, which comprises foaming a composition comprising a major proportion of a low viscosity polypropylene component having a melt viscosity (at 190.degree. C. and a shear rate of 1000 sec.sup.-1) of less than 2.times.10.sup.3 poise and a minor proportion of a high viscosity polypropylene component having a melt viscosity (at 190.degree. C. and a shear rate of 1000 sec.sup.-1) of greater than 2.5.times.10.sup.3 poise.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: July 10, 1990
    Assignee: Amoco Corporation
    Inventors: Josef Alteepping, Juergen P. Nebe