Mary B Shepard

US Patent:

6437064, Aug 20, 2002

Filed:

Jan 14, 1998

Appl. No.:

09/006700

Inventors:

John P. Eckstein - Neenah WI
Johnny Q. Zheng - Appleton WI
Mark E. Nordness - Neenah WI
Keith D. Lind - Appleton WI
George H. Walburn - Menasha WI
Mary E. Shepard - Oshkosh WI
Gregory K. Jones - Appleton WI
Gregory J. Seeke - Oshkosh WI

Assignee:

Pechiney Emballage Flexible Europe

International Classification:

C08F11002

US Classification:

526160, 5263294, 5263296, 526330, 526326, 526343, 526351, 526352, 5263485, 428516

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.

US Patent:

6562476, May 13, 2003

Filed:

Oct 4, 1999

Appl. No.:

09/411671

Inventors:

Mary E. Shepard - Oshkosh WI
Scott W. Middleton - Oshkosh WI
Robert J. Blemberg - Appleton WI
Jerry F. Jesse - Neenah WI

Assignee:

Pechiney Emballage Flexible Europe

International Classification:

B32B 2732

US Classification:

4284758, 4284761, 428520, 428910, 26417314, 26417315

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 âmemoryâ, clarity, gloss and low haze.

US Patent:

6942927, Sep 13, 2005

Filed:

Apr 25, 2002

Appl. No.:

10/131954

Inventors:

Mary E. Shepard - Oshkosh WI, US
Robert J. Blemberg - Appleton WI, US
Scott W. Middleton - Oshkosh WI, US
Jerry F. Jesse - Neenah WI, US

Assignee:

Pechiney Emballage Flexible Europe

International Classification:

B32B027/32

US Classification:

4284761, 4284755

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.

US Patent:

51090490, Apr 28, 1992

Filed:

Oct 31, 1989

Appl. No.:

7/418004

Inventors:

Mary E. Shepard - Oshkosh WI
Deane E. Galloway - Appleton WI
Keith D. Lind - Appleton WI

Assignee:

American National Can Company - Chicago IL

International Classification:

C08K 326

US Classification:

524425

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.

US Patent:

60689331, May 30, 2000

Filed:

Feb 15, 1996

Appl. No.:

8/602256

Inventors:

Mary E. Shepard - Neenah WI
Robert J. Blemberg - Appleton WI
Scott W. Middleton - Oshkosh WI
Jerry F. Jesse - Neenah WI

Assignee:

American National Can Company - Chicago IL

International Classification:

B32B 2732
B32B 2734

US Classification:

4284744

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.

US Patent:

48776840, Oct 31, 1989

Filed:

Aug 24, 1987

Appl. No.:

7/088344

Inventors:

Mary E. Shepard - Oshkosh WI
Deane E. Galloway - Appleton WI
Keith D. Lind - Appleton WI

Assignee:

American National Can Company - Chicago IL

International Classification:

B32B 2708
B32B 2734
C08J 320
C08K 300

US Classification:

4284758

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.