Patents by Inventor Helmut Moroff

Helmut Moroff 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).

  • Method of impregnating web structures with a synthetic resin
    Patent number: 4324832
    Abstract: What is disclosed is a method for making a synthetic veneer, which method comprises impregnating a fibrous web structure with an aqueous dispersion of a finely divided synthetic resin, said dispersion further containing a water-soluble aminoplast resin dissolved therein, and then drying the impregnated web structure by heating it, said synthetic resin being thermoplastically deformable and in a non-crosslinked condition at the beginning of the drying step, but comprising a plurality of groups capable of external crosslinking and which do crosslink during the drying step.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: April 13, 1982
    Assignee: Rohm GmbH
    Inventors: Helmut Moroff, Hanns Boessler, Hans Hauser, Gerhard Ladisich
  • Method of making paper having a high resin fill
    Patent number: 3937648
    Abstract: Method for making highly resin-filled paper on a paper machine employing a fiber slurry having therein a non-ionic resin in an amount of at least 30 percent (dry resin weight based on dry fiber weight), said resin being combined with the fiber slurry as a dispersion comprising a cationic and a non-ionic dispersing agent.
    Type: Grant
    Filed: June 15, 1973
    Date of Patent: February 10, 1976
    Assignee: Rohm GmbH
    Inventors: Klaus Huebner, Helmut Neumann, Hans Ottofrickenstein, Helmut Moroff, Norbert Suetterlin