Patents by Inventor Mary E. Shepard

Mary E. Shepard 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).

  • Patent number: 6942927
    Abstract: A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of “memory”, clarity, gloss and low haze.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: September 13, 2005
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: Mary E. Shepard, Robert J. Blemberg, Scott W. Middleton, Jerry F. Jesse
  • Patent number: 6562476
    Abstract: A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of “memory”, clarity, gloss and low haze.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: May 13, 2003
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: Mary E. Shepard, Scott W. Middleton, Robert J. Blemberg, Jerry F. Jesse
  • Publication number: 20020119334
    Abstract: A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of “memory”, clarity, gloss and low haze.
    Type: Application
    Filed: April 25, 2002
    Publication date: August 29, 2002
    Inventors: Mary E. Shepard, Robert J. Blemberg, Scott W. Middleton, Jerry F. Jesse
  • Patent number: 6437064
    Abstract: Copolymers of ethylene and alpha olefins that have been formed by a polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used as a film or as a layer in multiple layer films, including molecularly oriented and irradiated heat shrinkable films. Novel blends of the copolymers with other polymeric materials are disclosed and used as a film or a layer in a film particularly in molecularly oriented and heat shrinkable films. Bags made from the multiple layer films are especially useful for shrink packaging primal cuts of meat. Processes for the formation of flexible films and packages made therefrom are also disclosed.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: August 20, 2002
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: John P. Eckstein, Johnny Q. Zheng, Mark E. Nordness, Keith D. Lind, George H. Walburn, Mary E. Shepard, Gregory K. Jones, Gregory J. Seeke
  • Publication number: 20010003021
    Abstract: A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of “memory”, clarity, gloss and low haze.
    Type: Application
    Filed: October 4, 1999
    Publication date: June 7, 2001
    Applicant: MARY E. SHEPARD, et al
    Inventors: MARY E. SHEPARD, SCOTT W. MIDDLETON, ROBERT J. BLEMBERG, JERRY F. JESSE
  • Patent number: 6068933
    Abstract: A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film can also contain two nylon layers which are bonded together via an adhesive layer and not contain a core layer of ethylene vinyl alcohol. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of "memory", clarity, gloss and low haze.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: May 30, 2000
    Assignee: American National Can Company
    Inventors: Mary E. Shepard, Robert J. Blemberg, Scott W. Middleton, Jerry F. Jesse
  • Patent number: 5109049
    Abstract: Improved polymer additive concentrate compositions used in nylon film layers. The improved concentrate comprises a carrier of a nylon polymer composition and the additive material. Preferred nylons include nylon 6; nylon 6,66; nylon 6,6; and combinations thereof. Preferred additives are antiblock agents and slip agents. The film layers may comprise a single layer nylon film, or may be part of a multiple layer composition. The films are susceptible to being used in making packaging.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: April 28, 1992
    Assignee: American National Can Company
    Inventors: Mary E. Shepard, Deane E. Galloway, Keith D. Lind
  • Patent number: 4877684
    Abstract: Improved polymer additive concentrate compositions used in nylon film layers. The improved concentrate comprises a carrier of a nylon polymer composition and the additive material. Preferred nylons includes nylon 6; nylon 6,66; nylon 6,6; and combinations thereof. Preferred additives are antiblock agents and slip agents. The film layers may comprise a single layer nylon film, or may be part of a multiple layer composition. The films are susceptible to being used in making packaging.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: October 31, 1989
    Assignee: American National Can Company
    Inventors: Mary E. Shepard, Deane E. Galloway, Keith D. Lind
  • Patent number: H1727
    Abstract: A heat sealable, co-extruded multi-layer packaging film with a peelable, easy-opening feature, comprising a first layer which comprises a blend of polypropylene and a primary resin. The primary resin may comprise ionomers or other acid copolymers, ethylene vinyl acetate, low density polyethylene, or linear low density polyethylene. The first layer is disposed in contact with a second outer layer, which is a heat sealant layer, comprising polybutylene. The heat sealant layer separates from said first layer when force is applied to the heat seal. The film may be laminated to additional components, and may be heat sealed to itself or to a similar film to form a package.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: May 5, 1998
    Inventors: Gregory K. Jones, Mary E. Shepard