Patents by Inventor Roger Knapp

Roger Knapp 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 and means for reducing formaldehyde emission during the processing of thermoplastics with admixed polyacetal
    Patent number: 6753406
    Abstract: The present invention relates to a process for reducing formaldehyde emission from thermoplastics mixed with polyacetal, which comprises melting the thermoplastic mixture in the presence of at least one stabilizer in a mixing assembly and subjecting it to further processing steps. During this process, formaldehyde emission deriving from decomposition of the polyacetal is markedly reduced by adding suitable additives/stabilizers.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: June 22, 2004
    Assignee: Ticona GmbH
    Inventors: Stefan Wulf, Jens Schiebisch, Roger Knapp
  • Process and means for reducing formaldehyde emission during the processing of thermoplastics with admixed polyacetal
    Publication number: 20030125514
    Abstract: The present invention relates to a process for reducing formaldehyde emission from thermoplastics mixed with polyacetal, which comprises melting the thermoplastic mixture in the presence of at least one stabilizer in a mixing assembly and subjecting it to further processing steps.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 3, 2003
    Inventors: Stefan Wulf, Jens Schiebisch, Roger Knapp