Contains Vapor Or Gas Barrier, Polymer Derived From Vinyl Chloride Or Vinylidene Chloride, Or Polymer Containing A Vinyl Alcohol Unit Patents (Class 428/35.4)
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Patent number: 6692801Abstract: The present invention provides a method for producing a packaging laminate having excellent gas barrier properties. The method involves applying a solution or dispersion of starch or starch derivative to a surface of a substrate of paper or paperboard, and applying a layer of plastic to said starch or starch derivative so as to modify the properties of same such that the starch or starch derivative provides a gas barrier property.Type: GrantFiled: November 13, 2000Date of Patent: February 17, 2004Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Mikael Berlin, Ib Leth, Mats Bentmar
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Patent number: 6693148Abstract: A humidity responsive control device consists of a package having at least one face that is a permeable to liquid and gases and water vapor and is formed by mixing together a) 5 to 50% by weight of a hygroscopic polyacrylate and/or PVA polymer, b) 10 to 60% of porous silica minerals such as vermiculite and perlite, c) 5 to 50% of an absorbent such as zeolite or activated carbon for small molecules such as ammonia and d) 5 to 60% by weight of an aqueous emulsion of a mixture of an active ingredient of one or more of a bacteriocidal, fungicidal or odor masking compounds. The device is effective at eliminating and masking odors under varying humidity conditions.Type: GrantFiled: October 8, 2002Date of Patent: February 17, 2004Assignee: Puro-Systems PTY LTDInventors: David John Tomlinson, Wayne John Linklater
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Patent number: 6689438Abstract: Novel articles and packages are disclosed. Disclosed is the non-invasive use of a luminescent compound to detect and measure concentrations of oxygen dissolved in solids, particularly polymeric materials present in multi-layered packaging materials. The measurement is made independent of the oxygen concentration of the surrounding atmosphere. The invention is especially useful as a quality assurance check to verify oxygen scavenger activation during the assembly of modified atmosphere and vacuum packages. A solid article includes a film including an oxygen barrier layer; and a layer including an oxygen scavenger; and a patch including an oxygen barrier; and an oxygen indicator including a luminescent compound; wherein the patch is adhered to the film; and wherein the oxygen indicator is disposed between the oxygen barrier of the patch, and the oxygen barrier of the film. A package, and a bottle, each having the oxygen indicator, are also disclosed.Type: GrantFiled: June 6, 2001Date of Patent: February 10, 2004Assignee: Cryovac, Inc.Inventors: Thomas D. Kennedy, Marvin R. Havens, Drew V. Speer, Charles R. Barmore, R. Karina Espinel, Jeffrey A. Thomas
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Patent number: 6670007Abstract: A multilayer container for dispensing product that includes a relatively rigid outer body and a relatively flexible inner liner for holding product to be dispensed. The relatively rigid outer body includes, and preferably consists essentially of, an outer layer of virgin polyethylene such as HDPE, and an inner thicker layer that includes polyethylene regrind. The relatively flexible inner liner includes, and preferably consists essentially of, an outer delamination layer adjacent to the inner layer of the body and composed of nylon, nylon blends or EVOH, an inner layer of polyethylene such as LLDPE, and an adhesive securing the inner and outer layers of the liner. The relatively thin outer HDPE layer on the plastic body provides desired appearance, while the thicker inner layer provides structural rigidity using reground plastics.Type: GrantFiled: April 7, 1999Date of Patent: December 30, 2003Assignee: Owens-Brockway Plastic Products Inc.Inventors: John W. Safian, Joseph E. Olsavsky
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Publication number: 20030224130Abstract: A multi-layer laminate comprising at least one layer of fiber material and at least one layer of plastic laminated thereto, which plastic layer comprises at least 50 weight percent of a cycloolefin copolymer. Also disclosed are packaging materials and packages made from the multi-layer laminate.Type: ApplicationFiled: May 24, 2002Publication date: December 4, 2003Inventors: Wolfram Goerlitz, Ekkehard Beer, Heinz Wegmann
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Patent number: 6656548Abstract: A laminate comprising first and second polymeric films. One of the films is heat shrinkable and the other of the first and second films is non-heat shrinkable. At least one of the first and second films has an oxygen permeance of no more than about 150 cm3/m2·atm·24 hours at 23° C. and 0% relative humidity. The first film comprises an outer layer which, even when untreated, has a surface energy of at least 0.034 J/m2, and at least about 10 weight percent of one or more polymers having a Vicat softening point of at least about 65° C. The first film outer layer forms a first outer surface of the laminate. The outer layer of the second film forms the second outer surface of the laminate. The laminate has an improved ability to be sealed about a forming shoe without necking down.Type: GrantFiled: September 18, 2000Date of Patent: December 2, 2003Assignee: Cryovac, Inc.Inventors: Scott W. Beckwith, Ram K. Ramesh, Michael J. Rosinski
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Patent number: 6656602Abstract: A gas barrier coating composition which undergoes no decrease in barrier properties to gases such as oxygen and water vapor even under high-humidity conditions, contains no compounds thought to be harmful to the human body, and is harmless to the human body; and a gas barrier coating film with excellent gas barrier properties comprising the composition. The gas barrier coating composition comprises (a) a polyvinyl alcohol resin and (b) at least one member selected from the group consisting of a specific metal alcoholate, a hydrolysate of the metal alcoholate, a condensate of the metal alcoholate, a chelate compound of the metal alcoholate, a hydrolysate of the chelate compound and an acylated metal compound. The coating film obtained from the composition has excellent gas barrier properties.Type: GrantFiled: February 4, 2002Date of Patent: December 2, 2003Assignees: JSR Corporation, Dainippon Printing Co., LTD (DNP)Inventors: Satoshi Ishikawa, Hiroshi Shiho, Hiroshi Yamamoto, Takuya Yamazaki, Hideki Izawa
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Patent number: 6649236Abstract: An anti-fomitic device in the form of a bag or envelope forms a cover for an object for preventing cross-infection by bacteria and other pathogens that may reside on the object. The anti-fomitic device is a flat, flexible bag or envelope with a closure means at one or both ends of the bag or envelope, having a sterile interior that is sealed during manufacture to maintain sterility. Therefore, no outer wrapping for the anti-fomitic device is required. The anti-fomitic device is inverted when used to cover the object and results in an ultimate outer surface that is initially sterile. Materials for the coverings/bags are impervious to the transmission of pathogens. A laundered covering such as a sheet, pillowcase, etc., can then be slipped over the object that is covered with the anti-fomitic device to enhance comfort, yet maintain protection against pathogens on the object being covered.Type: GrantFiled: October 22, 2002Date of Patent: November 18, 2003Inventor: Marvin E. Haskin
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Patent number: 6627274Abstract: A multilayer heat shrinkable film having high heat shrink, high burn-through resistance and a broad impulse sealing range including an outer and a heat sealable inner layer each of a thermoplastic polymer or copolymer, wherein said outer layer has a melting point at least 20° C. higher than said inner layer.Type: GrantFiled: October 1, 2001Date of Patent: September 30, 2003Assignee: Sporos SAInventors: Stamatis Ginossatis, Jens Hestbech
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Publication number: 20030180489Abstract: A non-foil barrier laminate structure is provided that results in an improvement in shelf life performance of packaged food products over existing non-foil barrier laminates. Containers constructed from the barrier laminates of the invention can be hot filled or cold filled and can be stored at either ambient conditions or refrigerated conditions. The laminate structures have a polyamide layer for mechanical strength and thermal resistance; a first EVOH layer as a barrier to oxygen ingress applied in direct contact with the polyamide layer and a second barrier layer of EVOH, nylon or the like positioned closer to the product's contact surface that may act as a barrier to oxygen, water vapor, flavor/aroma, or a combination, which is not in contact with the first oxygen barrier layer of EVOH, and layers of polyolefin on both the matte side (interior) and the gloss side (exterior) of the laminate for heat sealing.Type: ApplicationFiled: November 6, 2002Publication date: September 25, 2003Inventors: Tricia Susan Reighard, Alexander Craig Bushman, James Irvin Marchman
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Patent number: 6623821Abstract: The invention provides a packaging film comprising a heat-shrinkable, heat-sealable polyester shrink film. The film comprises a homopolymer or copolymer of polyethylene terephthalate, preferably coated with a solvent-based, heat-seal coating, e.g., an amorphous copolyester. The film may be metallized and/or laminated to other films, e.g., ionomer films.Type: GrantFiled: January 31, 2000Date of Patent: September 23, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Terrance D. Kendig
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Patent number: 6620472Abstract: The present invention relates to laminated membranes formed by multi-layer processing techniques including alternating layers of thermoplastic urethane and a copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol.Type: GrantFiled: July 19, 1996Date of Patent: September 16, 2003Assignees: Nike, Inc., Tetra PlasticsInventors: Erwin C. Shepard, DeWayne R. Hartlerood, Paul H. Mitchell
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Patent number: 6601732Abstract: Oxygen scavenging compositions comprising at least one reducible organic compound which is reduced under predetermined conditions, the reduced form of the compound being oxidisable by molecular oxygen, wherein the reduction and/or subsequent oxidation of the organic compound occurs independent of the presence of a transition metal catalyst. Uses for the above compounds provide a flexible packaging material, a carton, a bag-in-box package, a thermoformed tray, cup or tub, a resin for blow-moulding, an overwrap, shrinkwrap, tight label or coating, a closure liner and a can.Type: GrantFiled: May 8, 2000Date of Patent: August 5, 2003Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Michael Laurence Rooney, Mark Andrew Horsham
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Patent number: 6602590Abstract: The invention relates to high gas barrier packaging films exhibiting good shrinkage and containing an antifog composition for modified atmosphere packaging of foods and the like. The films are useful for producing modified atmosphere packages that preserve and enhance the shelf life of food and non-food oxygen sensitive items. The films exhibit excellent shrinkage, permanent antifog, easy processing and low cost of manufacture.Type: GrantFiled: May 8, 2001Date of Patent: August 5, 2003Assignee: Honeywell International Inc.Inventors: Robert R. Ting, Earl L. Hatley, Jeffrey D. Moulton
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Patent number: 6602564Abstract: A vapor deposition film comprises a substrate made of a plastic material, a primer layer made from a composition comprising a specific trifunctional organosilane or a hydrolysate of the organosilane, an acryl polyol and an isocyanate compound, and an inorganic oxide vapor deposition layer to a thickness of 5˜300 nm, formed by successive lamination on at least one side of the substrate. Also, packaging materials and packages which employ the film are provided.Type: GrantFiled: April 19, 2001Date of Patent: August 5, 2003Assignee: Toppan Printing Co., Ltd.Inventors: Tsunenori Komori, Mamoru Sekiguchi, Noboru Sasaki, Ken Shimatani, Fumitake Koizumi
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Patent number: 6599595Abstract: This invention relates to multilayer thermoformable structures comprising a layer (A), a layer (C), and a layer (B) disposed between layers (A) and (C). The multilayer structures and polymer compositions of the invention are useful in preparing thermoformed articles and are particularly useful in preparing medical components such as IV bags. The multilayer structures and the polymer composition have good thermoformability and chemical resistance. A multilayer thermoformable structure according to the invention comprises: a layer (A) of a polymer composition comprising a homopolymer or copolymer of polypropylene; a layer (B) of a polymer composition comprising a homopolymer of polypropylene; and a layer (C) of a polymer composition comprising: (i) from about 45% to about 80% by weight of a homopolymer or copolymer of polypropylene or mixtures thereof; and (ii) from about 15% to about 40% by weight of an ethylene copolymer made using a metallocene catalyst.Type: GrantFiled: August 7, 1998Date of Patent: July 29, 2003Assignee: Ferro CorporationInventors: Deenadayalu Chundury, Kenneth Brown
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Patent number: 6596355Abstract: A packaging material is composed of a heat resistant base layer, a sealant layer, and a resin layer disposed at least a portion between the heat-resistant base layer and the sealant layer. The resin layer is composed of a resin material having a predetermined strength in a non-heated temperature state of less than a room temperature and this strength is lowered in a high temperature state heated, for example, by a microwave oven. Such packaging material can be effectively utilized for many kinds of packaging bags or containers with the sealant layer being disposed to the inner content side of the bag or container.Type: GrantFiled: June 21, 2000Date of Patent: July 22, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kozo Mita, Atsuko Takahagi, Hirotaka Tsuchiya, Kazunori Shigeta
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Publication number: 20030118760Abstract: A flexible tube designed to store and dispense liquid-to-pasty products containing fragrances, aromas or [substances] sensitive to oxidation, whose wall bears over its entire surface a coating comprising a layer of thickness comprised between 150 and 1500 Å of a material or a mixture of materials belonging to the following group: hydrogenated or non-hydrogenated, nitrogenated or non-nitrogenated amorphous carbon, oxides, nitrides or carbides or their mixture or their combination with one or more of the following metals (Si, Mg, Al, Ti, Zr, Nb, Ta, Mo, W, V). Preferably, this is an internal coating. The coating is created by means of a plasma, preferably under atmospheric pressure, by decomposition of a gaseous compound and condensation on the substrate or even by means of a plasma ribbon. The coating can be mixed or gradual: for example, carbon with polymeric tendency in the sublayer and silica on the surface.Type: ApplicationFiled: October 28, 2002Publication date: June 26, 2003Inventors: Mohamed Benmalek, Alain Jupin
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Patent number: 6579621Abstract: A multiple layer film useful in moisture barrier packaging applications has at least one layer comprising a blend of propylene polymer or copolymer, and a hydrocarbon resin; and two additional layers comprising a propylene polymer or copolymer, ethylene alpha olefin copolymer, ionomer, polybutene, or blends thereof. A core layer of ethylene vinyl alcohol copolymer or other oxygen barrier material, or high density polyethylene, can be included in some embodiments. A preferred embodiment of the multi-layer film exhibits excellent moisture barrier and optical properties, and shrink properties as well if the film has been oriented. High oxygen barrier is also a feature in embodiments including EVOH or other oxygen barrier materials.Type: GrantFiled: April 28, 1995Date of Patent: June 17, 2003Assignee: Cryovac, Inc.Inventor: Gautam P. Shah
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Patent number: 6576348Abstract: A multilayer film having a lamination side and a heat-sealable side is described. The multilayer film comprises, a) an inner layer (i) ethylene/vinyl alcohol copolymer; b) a coupling agent layer (ii) and a separate coupling agent layer (ii′), said inner layer (i) being interposed between and in contact with each of said coupling agent layer (ii) and said separate coupling agent layer (ii′); c) at least one further layer (iii), said separate coupling agent layer (ii′) being interposed between and in contact with each of said inner layer (i) and said layer (iii); d) at least one layer (iv), said coupling agent layer (ii) being interposed between and in contact with each of said inner layer (i) and said layer (iv); and e) a heat-sealable layer (v), said layer (iv) being interposed between and in contact with each of said coupling agent layer (ii) and said heat-sealable layer (v). Layers (i), (ii), (ii′), (iii) and (v) of the multilayer film contain 0.1 to 3 wt.Type: GrantFiled: April 4, 2001Date of Patent: June 10, 2003Assignee: Wolff Walsrode AGInventors: Holger Eggers, Rudi Klein, Claudia Müller, Rainer Brandt
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Patent number: 6576574Abstract: This invention relates to novel airbag coating compositions and systems comprising pre-expanded or non-expandable microspheres that provide effective insulation for the target airbag fabric during exothermic inflation. The inventive airbag fabrics are either pre-calendered prior to application of this composition or are coated through a gap (floating) knife method with such heat-expandable microsphere-containing compositions. The coated airbag fabrics and cushions may then be heated to evaporate the solvent within the coating composition. The resultant fabric thus exhibits the presence of the microsphere constituents of the coating compositions both within the interstices between the individual yarns of the fabric and over the raised yarns of the fabric.Type: GrantFiled: November 10, 1999Date of Patent: June 10, 2003Assignee: Milliken & CompanyInventors: Andrew D. Child, Derek S. Kozlowski
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Publication number: 20030077408Abstract: An anti-fomitic device in the form of a bag or envelope forms a cover for an object for preventing cross-infection by bacteria and other pathogens that may reside on the object. The anti-fomitic device is a flat, flexible bag or envelope with a closure means at one or both ends of the bag or envelope, having a sterile interior that is sealed during manufacture to maintain sterility. Therefore, no outer wrapping for the anti-fomitic device is required. The anti-fomitic device is inverted when used to cover the object and results in an ultimate outer surface that is initially sterile. Materials for the coverings/bags are impervious to the transmission of pathogens. A laundered covering such as a sheet, pillowcase, etc., can then be slipped over the object that is covered with the anti-fomitic device to enhance comfort, yet maintain protection against pathogens on the object being covered.Type: ApplicationFiled: October 22, 2002Publication date: April 24, 2003Inventor: Marvin E. Haskin
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Patent number: 6551674Abstract: A multilayer film suitable for cook-in end use includes an outer layer that includes a homo- or co-polymer of propylene and, directly adhered to the outer layer, a layer that includes at least one of: (a) an ethylene/alkyl acrylate copolymer having a high melting point, (b) propylene/&agr;-olefin copolymer having a lower propylene mer content than the outer layer and having a high Vicat softening point, and (c) an ethylene/vinyl acetate copolymer with at least 15% vinyl acetate mer content. The film exhibits good seal strength and good adhesion between the two layers, even in areas where the film is sealed, even after the film is oriented, even when the film is subjected to the elevated temperatures involved in cook-in procedures, and even where the film is subjected to, e.g., grease from fatty foods. The film also can include one or more other layers including, for example, bulk layers, O2-barrier layers, and/or abuse layers.Type: GrantFiled: August 3, 2001Date of Patent: April 22, 2003Assignee: Cryovac, Inc.Inventors: Graham Richard Piper, Ram Kumar Ramesh
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Patent number: 6541087Abstract: A multilayerd, biaxially stretched tubular film having the following sequence of layers, |A|B|C|D|E|F|G|, is described. Inner layer A contains at least one member selected from the group consisting of aliphatic (co)polyamide and partially aromatic (co)polyamide. Core layer E, consists essentially of at least one member selected from the group consisting of aliphatic (co)polyamide and partially aromatic (co)polyamide. Outer layer G contains at least one member selected from the group consisting of aliphatic (co)polyamide and partially aromatic (co)polyamide. Interlayer C is polyolefinic, has water vapor barrier properties, and is interposed between inner layer A and core layer E. Interlayer C is directly attached to layer A via coupling layer B and to layer E via coupling layer D. Coupling layers B and F each independently contain a modified polyolefin.Type: GrantFiled: September 11, 2000Date of Patent: April 1, 2003Assignee: Wolff Walsrode AGInventors: Dirk Pophusen, Nils Schröder
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Patent number: 6537628Abstract: A reinforced elastomeric bag for use within an electric submergible motor protector comprises a bag body formed from elastomeric material, such as fluoride co- and ter-polymers, butadiene copolymers, ethylene propylene diene methylene-based polymers, and combinations thereof; and a reinforcing material, such as tetrafluroethylene, aromatic p-polyamides, aromatic o,m-polyamides, fiberglass, ferrous metal, nonferrous metal, and combinations thereof. The reinforcing material is in the form of particles, threads and/or a weave that is dispersed within, bonded to or layered within the elastomeric material in a manner to improve the tear resistance of the bag at elevated temperatures encountered within wellbores.Type: GrantFiled: November 22, 1996Date of Patent: March 25, 2003Inventors: Timothy B. Bruewer, Edine M. Heinig, Steve C. Kennedy
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Patent number: 6534139Abstract: A laminate structure for producing paperboard or polymer containers and blow molded bottles containing a barrier structure of layer(s) of polyethylene terephthalate and a layer of ethylene vinyl alcohol copolymer, wherein no polyolefin based tie layers are used in the structure. The container or bottle produced therefrom is recyclable and has dimensional stability.Type: GrantFiled: May 28, 1999Date of Patent: March 18, 2003Assignee: International Paper CompanyInventors: Charles E. Gibbons, Paul C. Huzyak, Scott P. Andersen
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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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Patent number: 6524698Abstract: A fluid impermeable foil for use in connection with the wrapping of foodstuffs, cosmetics and other products has a plastic substrate one side of which is coated with a film of metallic material, such as aluminum. The exposed surface of the metallic film is provided with a thin protective layer which contains a wax, a resin, a lubricant and/or another organic material and shields the metallic film from scuffing, corrosion and direct exposure to air and/or moisture. The metallic material of the film is vaporized onto the one side of the substrate, and the organic material of the protective layer is vaporized onto the exposed surface of the film in one or more stages as soon as the vaporization of metallic material upon the substrate is completed.Type: GrantFiled: March 25, 1998Date of Patent: February 25, 2003Inventor: Helmuth Schmoock
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Publication number: 20030035909Abstract: An improved structure of a balloon suitable for inkjet printing devices is disclosed. The balloon structure of inkjet printing comprises: a vinyl resin layer (EVOH/ethylene and vinyl alcohol copolymer resin); a linear polyethylene layer (LLDPE) combined with the vinyl resin layer to form a base material; an ink-absorbing layer coated onto a side surface of the base material facilitating the absorption of ink from an inkjet printing device to form into patterns/characters; and a soft pad layer being a thin body having a side surface coated with a glue layer which can be easily removed for adhesion onto the other side surface of the base material to increase the thickness of the base material which can be delivered by the inkjet printing device. The inkjet printing device prints words, patterns onto the ink-absorbing layer. The soft pad layer is then removed, and by means of the hot sealing, and cutting steps, specific character, patterns, drawings are printed onto the balloon.Type: ApplicationFiled: August 20, 2001Publication date: February 20, 2003Inventor: Ting Chau Liau
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Patent number: 6521305Abstract: Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cushioning devices maintain the internal inflatant pressure for extended periods of time by employing a phenomenon referred to in the industry as diffusion pumping. Ideally, the cushioning devices of the present invention can be permanently inflated with gases such as nitrogen or air.Type: GrantFiled: September 14, 1999Date of Patent: February 18, 2003Inventors: Paul H. Mitchell, James C. Sell, Jr., Henry W. Bonk
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Patent number: 6514583Abstract: A heat-shrinkable film containing a homogeneous ethylene/alpha-olefin copolymer has a high impact strength and a high free shrink. The film can be a monolayer film or multilayer film, with the homogeneous ethylene/alpha-olefin copolymer present alone or in a blend, and in one or more film layers. The film is especially suited for use in heat-shrinkable bags, which can be used for the packaging of various products, especially meat.Type: GrantFiled: September 17, 1997Date of Patent: February 4, 2003Assignee: Cryovac, Inc.Inventors: Kelly R. Ahlgren, Robert Babrowicz, Solomon Bekele, Blaine C. Childress, Marvin R. Havens, Vincent W. Herran, Ronald D. Moffitt, Gautam P. Shah, George D. Wofford
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Patent number: 6511688Abstract: A packaged article, especially a respiring foodstuff such as cheese which generates or releases gas during storage, and a permeable multilayer biaxially oriented film suitable for allowing escape of such gas while minimizing transfer of oxygen across the film which has a thin layer of a blend of EVOH and nylon. In a preferred embodiment the low cost film having a high permeability to CO2 and low O2 permeability is used to package cheese.Type: GrantFiled: September 10, 2001Date of Patent: January 28, 2003Assignee: Curwood, Inc.Inventors: David Nicholas Edwards, Stephen James Vicik
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Patent number: 6509072Abstract: A multi-layer film includes a structural layer of water-soluble film, and a barrier layer. The barrier layer is affixed to spaced apart discrete areas of the structural layer. The barrier layer has insufficient structural integrity and strength to contain a bag's contents once the structural layer has been dissolved. A bag is formed by overlapping areas of the multi-layer film which do not include the barrier layer, and sealing the overlapping areas to one another.Type: GrantFiled: April 27, 1999Date of Patent: January 21, 2003Inventors: P. Scott Bening, Andrew P. Verrall, Christian Jouffreau
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Publication number: 20030012901Abstract: A multi-layer plastic container having a thin interior layer of EVOH in contact with a dry food product contained therein. The dry food product acts as a desiccant, thereby protecting the EVOH layer from moisture. The use of the dry food product in such fashion eliminates the need for a buried layer configuration or a thick, partially sacrificial, layer of EVOH.Type: ApplicationFiled: July 12, 2001Publication date: January 16, 2003Inventors: Edward Anthony Bezek, John Joseph Michels
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Publication number: 20030008085Abstract: The present invention relates to a laundry bag made of at least two types of material: (i) a first material that is water-insoluble; and (ii) a second material that is water-soluble and/or water-dispersible; the laundry bag contains a component selected from the group consisting of odor control agent, perfume, dye transfer inhibitor, and combinations thereof. The laundry bag is suitable for use in an automatic washing machine.Type: ApplicationFiled: June 19, 2002Publication date: January 9, 2003Applicant: The Procter & Gamble CompanyInventors: Dorothee Helene Davenet, Gisbert Marin Spieles
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Patent number: 6500519Abstract: There are provided an oxygen absorbable laminate comprising an internal layer, an oxygen absorbable layer and an external layer, in which at least one surface of the oxygen absorbable laminate is roughened and subjected to a water incorporation treatment; and a production method thereof. The oxygen absorbable laminate can effectively exert oxygen absorbability even when used for dried foods and the like.Type: GrantFiled: June 15, 2001Date of Patent: December 31, 2002Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Youichi Ishizaki, Kentaro Ichikawa, Hidehiko Nishizuka
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Patent number: 6500505Abstract: A multilayer film including an outer layer that includes a homo- or interpolymer of propylene and, directly adhered to the outer layer, a layer that includes a homogeneous ethylene/&agr;-olefin interpolymer having a density of no more than about 0.91 g/cm3 exhibits good seal strength and good adhesion between the two layers, even in areas where the film is sealed, even after the film is oriented, even when the film is subjected to the elevated temperatures involved in cook-in procedures, and even where the film is subjected to, e.g., grease from fatty foods. The film also can include one or more, for example, bulk layers, O2-barrier layers, and/or abuse layers.Type: GrantFiled: May 15, 1998Date of Patent: December 31, 2002Assignee: Cryovac, Inc.Inventors: Graham R. Piper, Ram K. Ramesh
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Publication number: 20020187289Abstract: A method for improving adhesion between two adjacent layers of a laminate membrane includes annealing the laminate membrane at a temperature between an alpha-transition temperature and a beta-transition temperature of at least one polymeric component of at least one of two adjacent layers for a time sufficient for the at least one polymeric component of at least one of the adjacent layers to partially diffuse into the other adjacent layer. A sealed, inflated bladder of the invention prepared from the laminate membrane can experience high strains without layer separation or peeling of the laminate layers, even at a seam.Type: ApplicationFiled: May 2, 2002Publication date: December 12, 2002Inventors: Yihua Chang, Richard L. Watkins, David J. Goldwasser, Robert D. Thompson, Richard P. Wool
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Publication number: 20020177868Abstract: A balloon catheter having a balloon formed at least in part of a blend of a first polymeric material having a first Shore durometer hardness, and at least a second polymeric material having a second Shore durometer hardness less than the Shore durometer hardness of the first polymeric material. The balloon of the invention has enhanced softness and flexibility due to the presence of the second polymeric material, and a lower than expected compliance. In a presently preferred embodiment, the balloon is formed of a blend of polymeric materials comprising polyether block amides.Type: ApplicationFiled: December 1, 1999Publication date: November 28, 2002Inventors: JEONG S. LEE, TIMOTEO TOMAS
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Publication number: 20020176953Abstract: Oxygen barrier polymer compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These polymer compositions comprise at least one ethylene vinyl alcohol copolymer, at least one oxidizable polydiene, and at least one metal salt catalyst. The polymer products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, tubes, pipes, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.Type: ApplicationFiled: March 7, 2001Publication date: November 28, 2002Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Publication number: 20020168489Abstract: The invention relates to high gas barrier packaging films exhibiting good shrinkage and containing an antifog composition for modified atmosphere packaging of foods and the like. The films are useful for producing modified atmosphere packages that preserve and enhance the shelf life of food and nonfood oxygen sensitive items. The films exhibit excellent shrinkage, permanent antifog, easy processing and low cost of manufacture.Type: ApplicationFiled: May 8, 2001Publication date: November 14, 2002Inventors: Robert R. Ting, Earl L. Hatley, Jeffrey D. Moulton
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Patent number: 6479113Abstract: A collapsible metal tube, comprising: a metal body portion susceptible of plastic deformation, the body portion being sealed at one end; a shoulder portion and a mouth/neck portion connected to the other end of the body portion; and a resin film provided on the inside wall surface of the body portion, the resin film comprising a metal-adhesive thermoplastic resin layer formed by spray-coating the inside wall surface of the body portion with a dispersion of fine spherical particles consisting of a metal-adhesive thermoplastic resin and then heating to integrate the particles. The resin film formed on the inside of the collapsible metal tube is reliable because it is a dense resin film virtually devoid of pinholes, excellent in elongation at break, and free from cracking when folded or deformed, and is excellent in ability of protecting the metal body portion and the contents.Type: GrantFiled: March 20, 2000Date of Patent: November 12, 2002Assignee: Taisei Kako Co., Ltd.Inventors: Yuichi Yamamoto, Kenji Ohnishi
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Patent number: 6479160Abstract: Oxygen barrier films exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. These films comprise a polyamide homopolymer, copolymer, or blends thereof; an ethylene vinyl alcohol copolymer; an oxidizable polydiene; and at least one metal salt catalyst. These films are particularly suited to making high barrier, retortable packaging structures such as pouches, containers etc. Such articles are useful for packaging a variety of oxygen-sensitive foods, beverage, medical and health care products.Type: GrantFiled: March 9, 2001Date of Patent: November 12, 2002Assignee: Honeywell International Inc.Inventors: Mingliang L. Tsai, Murali K. Akkapeddi
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Publication number: 20020164444Abstract: A polymeric film structure having one or more polymeric layers wherein an oxygen scavenging composition is affixed to the inside surface layer of the structure. The structure having usefulness in the packaging of foods and non-food articles wherein an oxygen free or a relative oxygen free environment is desirable for the contained article. The oxygen scavenging composition comprising a primer layer; a pigmented layer, an oxygen scavenger layer and an overcoat layer wherein each layer is applied one or more times to the polymeric film structure by a printing method preferably a flexographic printing process.Type: ApplicationFiled: March 29, 2002Publication date: November 7, 2002Inventors: Thomas F. Hunt, Deane Galloway, Daniel Miller
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Patent number: 6468377Abstract: A flexible container is provided for the storage and administration of medical solutions. The container incorporates a transparent front sheet made from a planar layer of a polymer and an opposing rear sheet. The rear sheet is made from a planar laminate layer. The front and rear sheets are sealed together along a common peripheral edge to form a volume enclosure. The volume enclosure is constructed of materials having high oxygen and moisture barrier properties which allows the container thermoplastic to be stored for extended periods of time without degrading the contents. The volume enclosure is then inflated with a pressurized gas to permanently stretch the front and rear sheets outwardly and to thereby increase the volume capacity of the container. An alternative embodiment of the container incorporates multiple compartments, separated by peelable seals, for containing a diluent and a medicament.Type: GrantFiled: February 10, 1999Date of Patent: October 22, 2002Assignee: B. Braun Medical Inc.Inventors: William A. Sperko, Robert E. Turner, Steven L. Smith, William B. Ray
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Patent number: 6468611Abstract: An anti-fomitic device in the form of a bag or envelope which forms a cover for an object for preventing cross-infection by bacteria and other pathogens that may reside on the object being covered. The anti-fomitic device is a flat, flexible bag or envelope with a closure means at one end of the bag or envelope, having a sterile interior which is sealed during manufacture to maintain sterility. Therefore, no outer wrapping for the anti-fomitic device is required. Alternatively, the anti-fomitic device is a flat, flexible, internally sterile bag with two releasably closed ends, where one end is tucked inward so that the sterile interiors of the two releasably closed ends touch.Type: GrantFiled: September 4, 1997Date of Patent: October 22, 2002Inventor: Marvin E. Haskin
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Publication number: 20020150708Abstract: The present invention relates to a laundry bag made of an alkaline-soluble material which contains a detergent composition. Said laundry bag is suitable for use in an automatic washing machine.Type: ApplicationFiled: August 3, 2001Publication date: October 17, 2002Applicant: The Procter & Gamble CompanyInventors: Zoe Dyter, Nigel Patrick Somerville Roberts, David William York, Graeme Duncan Cruickshank
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Patent number: 6465068Abstract: The present invention provides a non-PVC, non-DEHP material that can be used for medical grade tubing. Additionally, the present invention provides medical grade tubing made from such a material.Type: GrantFiled: September 13, 2000Date of Patent: October 15, 2002Assignee: Baxter International IncInventors: Indrajit Patel, Harold Bowerman, Larry Rosenbaum, Rich Mennenoh, Pat Ryan
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Patent number: 6465064Abstract: Compositions having improved gas/vapor barrier qualities are described. The compositions are composed of a substantially non-polar resin and a lamellar filler, the lamellar filler delaminating under high shear, to increase its aspect ratio. Also described are compositions composed of a non-polar thermoplastic resin filled with platelets of talc having an aspect ratio of at least 5; the platelets have an average aspect ratio of between 16-30 and a CIE whiteness index of at least 40.Type: GrantFiled: August 4, 1997Date of Patent: October 15, 2002Assignee: Betts UK LimitedInventor: Mark Graham Branch
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Patent number: RE37934Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).Type: GrantFiled: February 3, 2000Date of Patent: December 10, 2002Assignee: LTS Lohmann Therapie-Systeme AGInventor: Annegrete Hoffmann