Patents by Inventor George H. Walbrun

George H. Walbrun 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: 7316833
    Abstract: 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: Grant
    Filed: July 30, 1999
    Date of Patent: January 8, 2008
    Assignee: Penchiney Emballage Flexible Europe
    Inventors: Deane E. Galloway, Keith D. Lind, Dennis J. Kittel, George H. Walbrun, Johnny Q. Zheng
  • Patent number: 6645641
    Abstract: 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: Grant
    Filed: May 2, 2002
    Date of Patent: November 11, 2003
    Assignee: 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
  • Patent number: 6544660
    Abstract: 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: Grant
    Filed: May 18, 2000
    Date of Patent: April 8, 2003
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
  • Patent number: 6531198
    Abstract: 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: Grant
    Filed: January 11, 2001
    Date of Patent: March 11, 2003
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
  • Publication number: 20030027008
    Abstract: 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: Application
    Filed: May 2, 2002
    Publication date: February 6, 2003
    Applicant: 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
  • Patent number: 6511568
    Abstract: 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: Grant
    Filed: October 6, 2000
    Date of Patent: January 28, 2003
    Assignee: 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
  • Publication number: 20010003624
    Abstract: 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: Application
    Filed: January 11, 2001
    Publication date: June 14, 2001
    Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
  • Patent number: 6074715
    Abstract: 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: Grant
    Filed: June 26, 1998
    Date of Patent: June 13, 2000
    Assignee: Pechiney Plastic Packaging, Inc.
    Inventors: Keith D. Lind, John Eckstein, Robert J. Blemberg, Roger L. Kaas, George H. Walbrun
  • Patent number: 4590106
    Abstract: A three layer heat shrinkable film is disclosed, along with preferred process for making it. The film comprises a first heat sealable layer of an ionomer, a second layer of a vinylidene chloride copolymer, and a third layer of a blend of an ionomer and an EVA copolymer. The EVA content is no greater than 20% of the blend by weight, and the vinyl acetate content is at least 4.5% of the blend by weight. In the preferred process, a three layer tape is coextruded and cooled, and reheated to 197.degree.-203.degree. F., and oriented in a conventional double bubble process.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: May 20, 1986
    Assignee: American Can Company
    Inventors: Joseph C. Hsu, Donald W. Vought, George H. Walbrun
  • Patent number: 4541983
    Abstract: A three layer heat shrinkable film is disclosed, along with preferred process for making it. The film comprises a first heat sealable layer of an ionomer, a second layer of a vinylidene chloride copolymer, and a third layer of a blend of an ionomer and an EVA copolymer. The EVA content is no greater than 20% of the blend by weight, and the vinyl acetate content is at least 4.5% of the blend by weight. In the preferred process, a three layer tape is coextruded and cooled, and reheated to 197.degree.-203.degree. F., and oriented in a conventional double bubble process.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: September 17, 1985
    Assignee: American Can Company
    Inventors: Joseph C. Hsu, Donald W. Vought, George H. Walbrun
  • Patent number: 4501779
    Abstract: A three layer heat shrinkable film is disclosed, along with preferred process for making it. The film comprises a first heat sealable layer of an ionomer, a second layer of a vinylidene chloride copolymer, and a third layer of a blend of an ionomer and an EVA copolymer. The EVA content is no greater than 20% of the blend by weight, and the vinyl acetate content is at least 4.5% of the blend by weight. In the preferred process, a three layer tape is coextruded and cooled, and reheated to 197.degree.-203.degree. F., and oriented in a conventional double bubble process.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: February 26, 1985
    Assignee: American Can Company
    Inventors: Joseph C. Hsu, Donald W. Vought, George H. Walbrun