Patents by Inventor Henner Drum

Henner Drum 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).

  • Paper support
    Patent number: 4608295
    Abstract: Disclosed is a paper support which is suitable for use as a base for printed layers and/or varnish layers which are applied to one side of the support, in particular for slide-off decals. The support comprises a paper which is free from aluminum ions, particularly free from aluminum sulfate, and has a covering coating comprising fluoroalkylphosphate or perfluoroalkylphosphate and, optionally, a thickening agent, applied to its reverse side. Any aluminum ions which may possibly be present are rendered non-reactive by complexing.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: August 26, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Henner Drum
  • Support for transfer images or slide-off images
    Patent number: 4529654
    Abstract: A support is disclosed for transfer images or slide-off images, composed of absorbent paper with an applied barrier layer and a water-soluble separation layer for receiving an image layer, whereby the separation layer applied to said support comprises a homo- or co-polymer of acrylic acid and/or a copolymer of alkylvinyl ether and maleic acid anhydride.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: July 16, 1985
    Assignee: Hoffman & Engelmann AG
    Inventor: Henner Drum