Patents by Inventor Mark Thomas Demeuse

Mark Thomas Demeuse 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).

  • Polyolefin films suitable for institutional applications
    Patent number: 6410136
    Abstract: Polyolefin films having high oxygen transmission values are composed of blends of more than about 10% by weight to about 60% by weight of isotactic polypropylene, about 10% by weight to about 25% by weight of low density polyethylene and about 15% by weight to less than about 80% by weight of an olefin heteropolymer containing propylene and at least one other &agr;-olefin of 2 to 4 carbon atoms having a melting point less than that of polypropylene and a density of no greater than about 0.95 g/cc.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: June 25, 2002
    Assignee: Applied Extrusion Technologies, Inc.
    Inventor: Mark Thomas DeMeuse
  • Barrier films based on blends of polypropylene and ethylene-vinyl alcohol copolymer
    Patent number: 6316114
    Abstract: Oriented films of polypropylene and ethylene-vinyl alcohol copolymer are disclosed wherein the ethylene content of the copolymer is from about 40 to 50 mole %. The films are characterized by an improved oxygen transmission rate. Films are readily drawn to 6× by 6×. Films also exhibit improved resistance to transmission helium gas.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 13, 2001
    Assignee: Applied Extrusion Technologies, Inc.
    Inventors: Annette Marie Comer, Mark Thomas DeMeuse
  • Films based on three component polyolefin blend
    Patent number: 6232402
    Abstract: Polyolefin films having high oxygen transmission values are composed of blends of 75 to 92% isotactic polypropylene, 5 to 15% by weight low density polyethylene and 3 to 10% by weight of an olefin heteropolymer containing propylene and at least one other olefin 2 to 4 carbon atoms having a melting point less than that of polypropylene and a density ofr at least about 0.95 g/cc.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: May 15, 2001
    Inventor: Mark Thomas Demeuse
  • Process for intramolecularly condensing a non-linear optical polyamic acid composition
    Patent number: 5736592
    Abstract: A process for intramolecularly condensing a polyamic acid composition containing an NLO compound to form a polyimide host matrix composition containing as a guest the NLO compound, which process includes the step of uniformly heating the polyamic acid composition, in the absence of a solvent or diluent, to a temperature at which the intramolecular condensation will occur without thermal degradation of the NLO compound, so that the temperature differential within the polyamic acid is below that which will produce localized thermal degradation temperatures, until the intramolecular condensation of the polyamic acid composition to the polyimide host matrix composition is substantially complete. Polyimide host matrix compositions containing guest NLO compounds prepared by the inventive process are also disclosed, wherein the NLO compounds have external field-induced molecular alignments.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: April 7, 1998
    Assignee: Enichem S.p.A.
    Inventors: Mark Thomas DeMeuse, Diana Marie Applegate, Kwan-Yue Alex Jen, John Thomas Kenney