Patents Assigned to PCD Polymere Ges. m.b.H.
  • Continuous method for producing polypropylene mixtures of increased stress-crack resistance and melt strength
    Patent number: 5883151
    Abstract: Polypropylene mixtures of increased stress-crack resistance and melt strength can be produced by irradiating polypropylene powders with low average particle diameters by low energy electron-beam accelerators with energies of 150 to 300 keV. The polypropylene mixtures produced are suitable particularly for producing films, sheets, panels, coatings, pipes, hollow objects and foamed materials.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 16, 1999
    Assignee: PCD Polymere Ges. m.b.H.
    Inventors: Manfred Raetzsch, Achim Hesse, Hartmut Bucka, Norbert Reichelt, Ulf Panzer, Reiner Mehnert