Patents Assigned to Hollinee Glass Corporation
  • Three component filtration material
    Patent number: 6808548
    Abstract: A filter material comprising a blend of at least three types of fibers: (a) polypropylene fibers (b) polymethaphenylene isophtalamide fibers and (c) fibers of a third type selected from the group of acrylic and modacrylic. In a preferred embodiment, the blend contains about ten weight percent polymethaphenylene isophtalamide fibers, about 50 weight percent polypropylene fibers and about 40 weight percent modacrylic fibers. Performance of the blend is superior to the prior art filtration materials, especially at the preferred compositions.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: October 26, 2004
    Assignee: Hollinee Glass Corporation
    Inventors: Rodney R. Wilkins, K. Dale Montgomery, Stephen W. Alexander, James G. Tuttle, Edwin G. Hoel