Patents by Inventor Paul E. Bowen

Paul E. Bowen 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).

  • Soft, puncture- and tear-resistant polyolefin films
    Patent number: 5314746
    Abstract: Tough, puncture- and tear-resistant films having a high degree of flexibility and softness are provided. The monolayer and multilayer films of the invention are obtained using copolymers of propylene with 8 to 40 weight percent ethylene produced by gas phase polymerization of the monomers in dual reactors. The films will have a 1% secant modulus from 5,000 psi to 70,000 psi. Melting points of these films are higher than that of low density polyethylene and, most generally, in the range 125.degree. C. to 160.degree. C.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: May 24, 1994
    Assignee: Quantum Chemical Corporation
    Inventors: Lisa K. Johnson, Paul E. Bowen, Thaddeus W. Klimek, Michael B. Edwards