Patents by Inventor Wilfried Tews

Wilfried Tews 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).

  • Sealable biaxially orientated polypropylene film with a protective coating sealing against PVDC and acrylate lacquer
    Patent number: 7011882
    Abstract: The invention relates to a multi-layered biaxially orientated polyolefin film comprising a base layer and at least one protective coating. Said protective coating contains, as the main component, one copolymer or terpolymer I, which seals against PVDC and acrylate lacquers and coatings and consists of an olefin and unsaturated carboxylate acids or the esters thereof, and small quantities of wax. The film is provided on one side with a PVDC or acrylate coating so that it can be used as roll-wrap packaging.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: March 14, 2006
    Assignee: Trespaphan GmbH
    Inventors: Susanne Holzer, Gerhard Wieners, Wilfried Tews
  • Sealable biaxially orientated polypropylene film with a propective coating sealing against pvdc and acrylate lacquer
    Publication number: 20040033378
    Abstract: The invention relates to a multi-layered biaxially orientated polyolefin film comprising a base layer and at least one protective coating. Said protective coating contains, as the main component, one copolymer or terpolymer I, which seals against PVDC and acrylate lacquers and coatings and consists of an olefin and unsaturated carboxylate acids or the esters thereof, and small quantities of wax. The film is provided on one side with a PVDC or acrylate coating so that it can be used as roll-wrap packaging.
    Type: Application
    Filed: March 13, 2003
    Publication date: February 19, 2004
    Inventors: Susanne Holzer, Gerhard Wieners, Wilfried Tews