Patents Assigned to Hoffmann & Engelmann
  • Paper support carrying anti-adhesive layer
    Patent number: 4049860
    Abstract: This invention relates to an improvement in a paper support for receiving on one side thereof layers of print and/or varnish, in particular for receiving transfer images, the improvement comprising a water-permeable covering layer on the other side containing polyvinyl alcohol, a polysiloxane, and a polyalkyleneglycol wax. The invention also includes an article employing the improved paper support.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: September 20, 1977
    Assignee: Hoffmann & Engelmann
    Inventors: Ludwig Armbrust, Jurgen Neubert