Patents Assigned to Ivan Tomka
  • Process for improving the mechanical properties of single-or multi-ply sheets
    Patent number: 5415827
    Abstract: For the purpose of improving the quality and especially the mechanical properties of single- or multi-ply sheets with at least one ply, consisting at least in part of thermoplastically processable starch, the sheets are stretched monoaxially or biaxially after they have been produced.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: May 16, 1995
    Assignee: Ivan Tomka
    Inventors: Ivan Tomka, Joachim Meissner, Rico Menard