Patents by Inventor Erwin Piejko

Erwin Piejko 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).

  • Compatible blends of aromatic poly(ester) carbonates and polyamides
    Patent number: 5254624
    Abstract: The invention relates to compatible blends of 94 to 10% by weight aromatic poly(ester) carbonates or polycarbonates, 5 to 70% by weight polyamides and 1 to 20% by weight ester-functional (meth)acrylate polymers and, optionally, elastomers in typical modifying quantities, to a process for the production of these blends and to their use for the production of moldings.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: October 19, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg Heger, Erwin Piejko, Josef Buekers, Leo Morbitzer, Alexander Karbach