Patents by Inventor Chris K. Hung

Chris K. Hung 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).

  • Multilayer coextrusions
    Patent number: 7135234
    Abstract: A multilayer thermoplastic extruded structure comprises at least one thermoplastic polyolefin layer; at least one thermoplastic vinyl aromatic polymer layer; and a multicomponent tie layer. The multicomponent tie layer comprises at least one thermoplastic polyolefin; at least one thermoplastic vinyl aromatic polymer; and at least one styrenic block copolymer. Preferred structures are multilayer films used for packaging or multilayer sheets for thermoformed containers.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: November 14, 2006
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Karen D. Donnelly, Robert Dorville Roberts, John Chi Hee Kwok, Chris K. Hung, Trevor Dean Pacholok
  • Multilayer coextrusions
    Publication number: 20040253468
    Abstract: A multilayer thermoplastic extruded structure comprises at least one thermoplastic polyolefin layer; at least one thermoplastic vinyl aromatic polymer layer; and a multicomponent tie layer. The multicomponent tie layer comprises at least one thermoplastic polyolefin; at least one thermoplastic vinyl aromatic polymer; and at least one styrenic block copolymer. Preferred structures are multilayer films used for packaging or multilayer sheets for thermoformed containers.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 16, 2004
    Inventors: Karen D. Donnelly, Robert Dorville Roberts, John Chi Hee Kwok, Chris K. Hung, Trevor Dean Pacholok