Patents by Inventor Henri-Albert Mommaerts

Henri-Albert Mommaerts 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).

  • Polyacrylonitrile fibers having a natural crimp and process for producing the same
    Patent number: 3984515
    Abstract: A naturally crimped polyacrylonitrile fiber having an asymmetrical cross section, the cross section having at least two large oblong lobes, the angle between at least two of these lobes being less than 90.degree., the fiber having an outer structure which has a relatively high density and has a variable thickness, this outer structure enclosing an inner structure which is porous and less dense than the outer structure.The process for producing crimped polyacrylonitrile fibers comprises spinning a solution of a polyacrylonitrile polymer into a cold bath at a temperature of less than 30.degree.C.
    Type: Grant
    Filed: March 5, 1973
    Date of Patent: October 5, 1976
    Assignee: Akzo Belge S.A.
    Inventors: Henri-Albert Mommaerts, Andre-Edgard Dubois