Patents Assigned to Naturin-Werk Becker & Do.
  • Polyurethanes and food casing made therefrom particularly by extrusion and stretching
    Patent number: 4123589
    Abstract: A novel elastic polyurethane having outstanding properties for use in making mono- and multi-layer food casings, more especially sausage casings, by extrusion. Stretching, especially biaxial stretching, gives further improvement. The casings can be boiled and scalded without folding or wrinkling when cooled. The polyurethane comprises a particular combination of components which imparts the desired properties.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: October 31, 1978
    Assignee: Naturin-Werk Becker & Do.
    Inventors: Rudi Korlatzki, Gunter Schuhmacher