Patents by Inventor Edwin H. Niemann

Edwin H. Niemann 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).

  • Foamable interpolymer resin particles containing limonene as a blowing aid
    Patent number: 6908949
    Abstract: Interpolymer resin particles comprised of 20% to 80% by weight polyolefin, e.g. polyethylene and 80% to 20% by weight of an in situ polymerized vinyl aromatic resin, e.g. polystyrene or poly(styrene-butyl acrylate) and forming an interpenetrating network of polyolefin and vinyl aromatic resin particles. The interpolymer particles are impregnated with a volatile hydrocarbon blowing agent, and limonene, e.g. d-limonene, ranging from about 0.1 to about 5 parts, preferably 0.1 to 1 part by weight, based on 100 parts by weight of the interpolymer particles, for improved expandability and a pleasant fragrance.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: June 21, 2005
    Assignee: Nova Chemicals Inc.
    Inventors: Paul Edward Arch, Edwin H. Niemann
  • Foamable interpolymer resin particles containing limonene as a blowing aid
    Publication number: 20040152795
    Abstract: Interpolymer resin particles comprised of 20% to 80% by weight polyolefin, e.g. polyethylene and 80% to 20% by weight of an in situ polymerized vinyl aromatic resin, e.g. polystyrene or poly(styrene-butyl acrylate) and forming an interpenetrating network of polyolefin and vinyl aromatic resin particles. The interpolymer particles are impregnated with a volatile hydrocarbon blowing agent, and limonene, e.g. d-limonene, ranging from about 0.1 to about 5 parts, preferably 0.1 to 1 part by weight, based on 100 parts by weight of the interpolymer particles, for improved expandability and a pleasant fragrance.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: Paul Edward Arch, Edwin H. Niemann
  • Isopentane as blowing agent to improve coffee retention in foam cups molded from expandable polystyrene
    Patent number: 4840759
    Abstract: Cups have been molded from expandable styrene polymer particles having a portion or all of the blowing agent replaced by isopentane. Cups molded from these beads were coffee leak tested and generally exhibited enhanced retention of coffee.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: June 20, 1989
    Assignee: Arco Chemical Technology, Inc.
    Inventors: Paul E. Arch, Edwin H. Niemann
  • Isopentane as blowing agent to improve coffee retention in foam cups molded from expandable polystrene
    Patent number: 4798749
    Abstract: Cups have been molded from expandable styrene polymer particles having a portion or all of the blowing agent replaced by isopentane. Cups molded from these beads were coffee leak tested and generally exhibited enhanced retention of coffee.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: January 17, 1989
    Assignee: Arco Chemical Company
    Inventors: Paul E. Arch, Edwin H. Niemann