Patents by Inventor Manfred Gramse

Manfred Gramse 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).

  • Process for producing urea-modified, highly reactive phenolic resins useful as bonding agents for center-layer particles in the manufacture of particleboard
    Patent number: 5681916
    Abstract: Urea-modified, highly reactive phenolic resins useful as center-layer bonding agents in the manufacture of particleboard are provided by condensing phenol and formaldehyde until shortly before gelation takes place such that, after addition of urea, relatively low-alkaline, urea-modified phenolic resins are obtained which my optionally be stored and to which, shortly before processing them into glues for center-layer particles, alkali is added in sufficient quantities to ensure rapid cross-linking of the phenolic resin.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: October 28, 1997
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Adolf Buschfeld, Matthias Lattekamp, Manfred Gramse, Hans-Jurgen Krezmin
  • Process for the manufacture of chip boards using condensation resins as binders and product
    Patent number: 3968308
    Abstract: The present invention relates to a process for the manufacture of chip boards especially multi-layer chip boards, using condensation resins as binders, and the products thereof the improvement including wetting powdered adhesive particles before applying the adhesive particles to wood chips.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: July 6, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Adolf Buschfeld, Manfred Gramse, Dragomir Simic