Patents by Inventor Martin Fiddelaers

Martin Fiddelaers 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 forming boards of foam polyolefin using needle punching to release blowing agent
    Patent number: 5776390
    Abstract: A board of foamed polyolefin is extruded and is foamed with a blowing agent that can be halogen-free hydrocarbon or CO.sub.2. To reduce the content of blowing agent, the board is needle-punched within three hours after extrusion to a perforation depth in the range of 60 to 97% of the board thickness. Such a board has good thermal stability.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: July 7, 1998
    Assignee: Scriptoria N.V.
    Inventors: Martin Fiddelaers, Leon Swennen