Patents by Inventor Laurel E. Schock

Laurel E. Schock 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 for making copolymers of vinyl aromatic monomers and vinyl phosphonic acid derivatives and foamed articles therefrom
    Patent number: 5116882
    Abstract: A process for making thermoplastic copolymer beads from vinyl aromatic monomers and vinyl phosphonic acid derivatives is disclosed. A process for making foamed articles from the beads is also disclosed. The foamed articles are useful for packaging and construction applications.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: May 26, 1992
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Roger A. Grey, Laurel E. Schock, Diandre Armstead
  • Vinyl aromatic monomer/vinyl phosphonate copolymer compositions and foamed articles derived therefrom
    Patent number: 5109033
    Abstract: Copolymer compositions based on vinyl aromatic monomers and derivatives of vinyl phosphonic acids are disclosed. The copolymer beads of the invention are advantageously used to make foamed articles useful for packaging and construction applications.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: April 28, 1992
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Roger A. Grey, Laurel E. Schock, Diandre Armstead