Patents by Inventor Keith D. Lind
Keith D. Lind 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).
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Patent number: 7316833Abstract: A multilayer thermoplastic film, and packages made from the film, comprising a layer of ethylene vinyl alcohol (EVOH) as an oxygen barrier layer, a layer of a polymer or copolymer formed by the polymerization reaction with a single site catalyst and ethylene vinyl acetate (EVA) as a sealant layer, and alternatively containing a layer of EVA, said film having improved sealability and improved clarity as compared to conventional films.Type: GrantFiled: July 30, 1999Date of Patent: January 8, 2008Assignee: Penchiney Emballage Flexible EuropeInventors: Deane E. Galloway, Keith D. Lind, Dennis J. Kittel, George H. Walbrun, Johnny Q. Zheng
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Patent number: 7052753Abstract: Novel films, and processes for making them, are provided. The films are characterized by the inclusion of a layer of vinylidene chloride copolymer between at least two other layers which contain ethylene vinyl acetate, and optionally linear low density polyethylene. The films may be unoriented or oriented. Oriented films may optionally be cross-linked. The novel process of making the cross-linked films includes the step of cross-linking the film after assembly of the vinylidene chloride copolymer layer into the structure.Type: GrantFiled: December 22, 1989Date of Patent: May 30, 2006Assignee: Pechiney Emballage Flexible EuropeInventors: Samuel W. Tse, Almar T. Widiger, Keith D. Lind
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Patent number: 7041351Abstract: Novel films, and processes for making them, are provided. The films are characterized by the inclusion of a layer of vinylidene chloride copolymer between at least two other layers which contain ethylene vinyl acetate, and optionally linear low density polyethylene. The films may be unoriented or oriented. Oriented films may optionally be cross-linked. The novel process of making the cross-linked films includes the step of cross-linking the film after assembly of the vinylidene chloride copolymer layer into the structure.Type: GrantFiled: June 22, 1989Date of Patent: May 9, 2006Assignee: Pechiney Emballage Flexible EuropeInventors: Samuel W. Tse, Almar T. Widiger, Keith D. Lind, James Musselman
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Patent number: 6770338Abstract: The invention relates to heat shrinkage films having polyvinylidene chloride methyl acrylate blend as a barrier layer. Specifically, this invention relates to film structures having a first barrier layer comprising polyvinylidene chloride methyl acrylate blend wherein said barrier layer has two opposing surfaces; a second layer adhered to one of the surfaces of the first barrier layer comprising ethylene vinyl acetate copolymer blend; a third layer adhered to the other surface of the first barrier layer comprising an ethylene vinyl acetate copolymer blend; a fourth layer adhered to one of said second or said third layer comprising an ethylene acetate copolymer blend wherein the melt indexes of said blends of said second, third and fourth layers are the same; a fifth layer adhered to the other of said second or third layer comprising a blend of linear low density polyethylene and low density polyethylene. Said film structures have usefulness as shrink bags.Type: GrantFiled: June 9, 2000Date of Patent: August 3, 2004Assignee: Pechiney Emballage Flexible EuropeInventor: Keith D. Lind
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Patent number: 6706343Abstract: The invention relates to heat shrinkage films having polyvinylidene chloride methyl acrylate blend as a barrier layer. Specifically, this invention relates to film structures having a first barrier layer comprising polyvinylidene chloride methyl acrylate blend wherein said barrier layer has two opposing surfaces; a second layer adhered to one of the surfaces of the first barrier layer comprising ethylene vinyl acetate copolymer blend; a third layer adhered to the other surface of the first barrier layer comprising an ethylene vinyl acetate copolymer blend; a fourth layer adhered to one of said second or said third layer comprising an ethylene acetate copolymer blend wherein the melt indexes of said blends of said second, third and fourth layers are the same; a fifth layer adhered to the other of said second or third layer comprising a blend of linear low density polyethylene and low density polyethylene. Said film structures have usefulness as shrink bags.Type: GrantFiled: June 10, 1999Date of Patent: March 16, 2004Assignee: Pechiney Emballage Flexible EuropeInventor: Keith D. Lind
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Patent number: 6677012Abstract: A multiple layer polymeric film comprising three layers wherein the first layer comprises a blend of ethylene vinyl acetate copolymer, linear low-density polyethylene, and a second ethylene vinyl acetate copolymer, the second layer comprises ethylene vinyl acetate copolymer; and the third layer comprises a blend of linear low-density polyethylene and low-density polyethylene said second layer being disposed between said first and third layer and wherein each a color concentrate, a slip additive and an antiblock additive may optionally and independently be present in layers one, two and three.Type: GrantFiled: November 22, 2000Date of Patent: January 13, 2004Assignee: Pechiney Emballage Flexible EuropeInventors: Keith D. Lind, John Eckstein, Robert J. Blemberg
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Patent number: 6645641Abstract: Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.Type: GrantFiled: May 2, 2002Date of Patent: November 11, 2003Assignee: Pechiney Plastic Packaging, Inc.Inventors: John P. Eckstein, Johnny Q. Zheng, Mark E. Nordness, Keith D. Lind, George H. Walbrun, Gregory K. Jones, Gregory J. Seeke, Ronald J. Dembowski, Douglas J. Jackson
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Patent number: 6544660Abstract: Films comprising a first layer, composition of said first layer comprising a blend of an ethylene vinyl acetate copolymer; linear low density polyethylene; a second ethylene vinyl acetate copolymer; and slip; a second layer, composition of said second layer comprising ethylene vinyl acetate copolymer and wherein each first and second layer having two surfaces; a third layer, composition of said third layer comprising vinylidene chloride methyl acrylate and wherein said third layer is disposed between said first and second layer; a fourth layer, composition of said fourth layer being the same as said first layer wherein said fourth layer is adhered to said first layer on the surface opposite said third layer; and a fifth layer, composition of said fifth layer comprising a blend of linear low density polyethylene and low density polyethylene wherein said fifth layer is adhered to said second layer on the surface opposite said third layer are provided for.Type: GrantFiled: May 18, 2000Date of Patent: April 8, 2003Assignee: Pechiney Emballage Flexible EuropeInventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
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Patent number: 6531198Abstract: A multiple layer polymeric film having five layers and wherein an antiblock additive and an slip additive may optionally and independently be present in layers 1, 2, 4 and 5 and wherein said antiblock additive may be a blend of two or more antiblock additives and wherein both of said slip additive and said antiblock additives are present at about 0.1%-10%, based on the total weight of the layer.Type: GrantFiled: January 11, 2001Date of Patent: March 11, 2003Assignee: Pechiney Emballage Flexible EuropeInventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
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Publication number: 20030027008Abstract: Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.Type: ApplicationFiled: May 2, 2002Publication date: February 6, 2003Applicant: Pechiney Plastic Packaging, Inc.Inventors: John P. Eckstein, Johnny Q. Zheng, Mark E. Nordness, Keith D. Lind, George H. Walbrun, Gregory K. Jones, Gregory J. Seeke, Ronald J. Dembowski, Douglas J. Jackson
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Patent number: 6511568Abstract: Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.Type: GrantFiled: October 6, 2000Date of Patent: January 28, 2003Assignee: Pechiney Plastic Packaging, Inc.Inventors: John P. Eckstein, Johnny Q. Zheng, Mark E. Nordness, Keith D. Lind, George H. Walbrun, Gregory K. Jones, Gregory J. Seeke, Ronald J. Dembowski, Douglas J. Jackson
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Patent number: 6437064Abstract: 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: GrantFiled: January 14, 1998Date of Patent: August 20, 2002Assignee: Pechiney Emballage Flexible EuropeInventors: John P. Eckstein, Johnny Q. Zheng, Mark E. Nordness, Keith D. Lind, George H. Walburn, Mary E. Shepard, Gregory K. Jones, Gregory J. Seeke
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Publication number: 20010003624Abstract: A multiple layer polymeric film having five layers and wherein an antiblock additive and an slip additive may optionally and independently be present in layers 1, 2, 4 and 5 and wherein said antiblock additive may be a blend of two or more antiblock additives and wherein both of said slip additive and said antiblock additives are present at about 0.1%-10%, based on the total weight of the layer.Type: ApplicationFiled: January 11, 2001Publication date: June 14, 2001Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
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Patent number: 6074715Abstract: Films comprising a first layer, composition of said first layer comprising a blend of an ethylene vinyl acetate copolymer; linear low density polyethylene; a second ethylene vinyl acetate copolymer; and slip; a second layer, composition of said second layer comprising ethylene vinyl acetate copolymer and wherein each first and second layer having two surfaces; a third layer, composition of said third layer comprising vinylidene chloride methyl acrylate and wherein said third layer is disposed between said first and second layer; a fourth layer, composition of said fourth layer being the same as said first layer wherein said fourth layer is adhered to said first layer on the surface opposite said third layer; and a fifth layer, composition of said fifth layer comprising a blend of linear low density polyethylene and low density polyethylene wherein said fifth layer is adhered to said second layer on the surface opposite said third layer are provided for.Type: GrantFiled: June 26, 1998Date of Patent: June 13, 2000Assignee: Pechiney Plastic Packaging, Inc.Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
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Patent number: 6010792Abstract: A multiple layer polymeric film comprising a first and second layer, the composition of said first layer comprising a blend of ethylene vinyl acetate copolymer, linear low-density polyethylene, a second ethylene vinyl acetate copolymer and slip; the composition of said second layer comprising ethylene vinyl acetate copolymer; and a third layer comprising a blend of linear low density polyethylene and low density polyethylene said second layer being disposed between said first and third layer and wherein a color concentrate may optionally and independently be present in layers one, two and three.Type: GrantFiled: March 31, 1998Date of Patent: January 4, 2000Assignee: American National Can CompanyInventors: Keith D. Lind, John Eckstein, Robert J. Blemberg
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Patent number: 5679422Abstract: A coextruded multilayer polymeric film for use as a chub film having a core layer of an oxygen barrier material and layers disposed on either side of the core layer comprising a blend of an ethylene alpha-olefin copolymer formed from a polymerization reaction in the presence of a single site catalyst and a tie or adhesive, or alternatively a blend of a tie or adhesive and an ethylene acid copolymer, including a neutralized ethylene acid copolymer such as an ionomer. The film also comprises outer sealant layers comprising a blend of an ethylene alpha-olefin copolymer formed from a polymerization reaction in the presence of a single site catalyst and optionally a compound selected from the group consisting of LLDPE, having a density of between about 0.910 g/cc to about 0.940 g/cc, and an ethylene acid copolymer.Type: GrantFiled: January 25, 1995Date of Patent: October 21, 1997Assignee: American National Can CompanyInventors: Keith D. Lind, Johnny Q. Zheng, Gregory K. Jones, Dennis Kittel
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Patent number: 5109049Abstract: 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: GrantFiled: October 31, 1989Date of Patent: April 28, 1992Assignee: American National Can CompanyInventors: Mary E. Shepard, Deane E. Galloway, Keith D. Lind
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Patent number: 4894107Abstract: Novel films, and processes for making them, are provided. The films are characterized by the inclusion of a layer of vinylidene chloride copolymer between at least two other layers which contain ethylene vinyl acetate, and optionally linear low density polyethylene. The films may be unoriented or oriented. Oriented films may optionally be cross-linked. The novel process of making the cross-linked films includes the step of cross-linking the film after assembly of the vinylidene chloride copolymer layer into the structure.Type: GrantFiled: May 16, 1985Date of Patent: January 16, 1990Assignee: American National Can CompanyInventors: Samuel W. Tse, Almar T. Widiger, Keith D. Lind
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Patent number: 4877684Abstract: 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: GrantFiled: August 24, 1987Date of Patent: October 31, 1989Assignee: American National Can CompanyInventors: Mary E. Shepard, Deane E. Galloway, Keith D. Lind
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Patent number: 4267960Abstract: A multi-layer laminated meat package is disclosed which has a panel of the bag adapted for clear sight of the meat inside and another portion of the bag which has a boneguard panel constructed to resist puncture when drawn firmly over protruding bones in the meat. The bag is adapted to be evacuated after insertion of the meat so as to be drawn tightly over the meat, and to have the open end of the bag thereafter heat sealed together to complete the package. In addition, all interior surfaces of the bag are formed of heat sealable materials such that the completed package can be post heated after insertion of the meat to seal areas of the bag which have been drawn together during the evacuation. Embodiments of the bag are disclosed which have more than 50% of the surface of the bag covered by a boneguard panel. Boneguard panels which include a relatively thick layer of foamed plastic are also disclosed.Type: GrantFiled: August 29, 1979Date of Patent: May 19, 1981Assignee: American Can CompanyInventors: Keith D. Lind, Deane E. Galloway