Patents by Inventor Valerie M. Naylor

Valerie M. Naylor 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).

  • PEN-PET-PEN polymeric film
    Patent number: 6908686
    Abstract: A polymeric film comprising a first layer which comprises (a) a mixture comprising 50-99.9% by weight polyethylene terephthalate (PET) and 0.1-50% by weight of polyethylene naphthalate (PEN) or (b) a copolymer comprising 50-99.9% by weight ethylene terephthalate units and 0.1-50% by weight ethylene naphthalate units, based on the total weight of the first layer, further comprising a second layer comprising PEN and a third layer comprising PEN, and further comprising a first intermediate layer and a second intermediate layer, wherein each of said intermediate layers comprises (a) a mixture comprising 50-99.9% by weight polyethylene terephthalate (PET) and 0.1-50% by weight polyethylene naphthalate (PEN) or (b) a copolymer comprising 50-99.9% by weight ethylene terephthalate units and 0.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: June 21, 2005
    Assignee: DuPont Teijin Films U.S. Limited Partnership
    Inventors: Anton Richard Olek, Valerie M. Naylor, Christopher Charles Naylor