Abstract: A multi-layer closure liner for carbonated beverage containers and the like, including a gas barrier layer, a first tie layer on an upper surface of the gas barrier layer, a second tie layer on a lower surface of the gas barrier layer, a first polyolefinic resin layer on the upper surface of the first tie layer, and a second polyolefinic layer on the lower surface of the second tie layer. In the preferred embodiment, the gas barrier layer is ethylene vinyl alcohol copolymer (EVOH), the first and second tie layers are functionalized polyolefin and the first and second polyolefinic resin layers are ethylene vinyl acetate (EVA). The layers defining the closure liner are preferably simultaneously formed using a co-extrusion process to prevent the gas barrier layer from being exposed to moisture.
Type:
Application
Filed:
November 1, 2001
Publication date:
June 6, 2002
Applicant:
Tri-Seal Holdings, Inc.
Inventors:
Harvey Finkelstein, Victor Flores, Anatoly Verdel, Bruce Bums, Richard McKenna
Abstract: A separating closure liner comprises a laminate construction of a reusable liner portion and an inner seal portion, each separated by a light tack shearable adhesive. The light tack shearable adhesive enables the reusable liner portion to break away from the inner seal portion after it has been sealed to a container neck. The reusable liner portion remains in the closure of the container for sealing purposes. Use of the light tack shearable adhesive permits the use of polyolefin foamed materials as a reusable liner portion.
Type:
Grant
Filed:
September 17, 1996
Date of Patent:
April 30, 2002
Assignee:
Tri-Seal Holdings, Inc.
Inventors:
Harvey Finkelstein, Walter Burgess, Victor Flores, Anatoly Verdel
Abstract: A multi-layer closure liner for carbonated beverage containers and the like, including a gas barrier layer, a first tie layer on an upper surface of the gas barrier layer, a second tie layer on a lower surface of the gas barrier layer, a first polyolefinic resin layer on the upper surface of the first tie layer, and a second polyolefinic layer on the lower surface of the second tie layer. In the preferred embodiment, the gas barrier layer is ethylene vinyl alcohol copolymer (EVOH), the first and second tie layers are functionalized polyolefin and the first and second polyolefinic resin layers are ethylene vinyl acetate (EVA). The layers defining the closure liner are preferably simultaneously formed using a co-extrusion process to prevent the gas barrier layer from being exposed to moisture.
Type:
Grant
Filed:
September 18, 2000
Date of Patent:
November 6, 2001
Assignee:
Tri-Seal Holdings, Inc.
Inventors:
Harvey Finkelstein, Victor Flores, Anatoly Verdel, Bruce Burns, Richard McKenna
Abstract: In order to provide a liner which can be used in place of existing type liners used in a closure for a container, a multiple layer liner sheet is coextruded in a manner wherein the outer layers are skin layers formed of a gas permeable material. These layers enclose a gas barrier layer and a foamed layer which respectively prevent the invasion of oxygen from the ambient atmosphere and remove oxygen from the head space to safeguard the contents of the container. The foamed layer provides the liner with the required resiliency, provides space for the inclusion of an adequate amount of oxygen scavenging material, and also provides a cellular structure which allows the gas molecules the freedom to move and quickly come into contact with the oxygen scavenging material.
Type:
Grant
Filed:
July 10, 1997
Date of Patent:
February 27, 2001
Assignee:
Tri-Seal Holdings, Inc.
Inventors:
Harvey Finkelstein, Bruce Burns, Victor Flores, Richard McKenna, Anatoly Verdel
Abstract: A multi-layer closure liner for carbonated beverage containers and the like, including a gas barrier layer, a first tie layer on an upper surface of the gas barrier layer, a second tie layer on a lower surface of the gas barrier layer, a first polyolefinic resin layer on the upper surface of the first tie layer, and a second polyolefinic layer on the lower surface of the second tie layer. In the preferred embodiment, the gas barrier layer is ethylene vinyl alcohol copolymer (EVOH), the first and second tie layers are functionalized polyolefin and the first and second polyolefinic resin layers are ethylene vinyl acetate (EVA). The layers defining the closure liner are preferably simultaneously formed using a co-extrusion process to prevent the gas barrier layer from being exposed to moisture.
Type:
Grant
Filed:
January 27, 1998
Date of Patent:
October 31, 2000
Assignee:
Tri-Seal Holdings, Inc.
Inventors:
Harvey Finkelstein, Victor Flores, Anatoly Verdel, Bruce Burns, Richard McKenna