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: 8377529Abstract: A coextruded multilayer film includes a core layer including a polyamide; two intermediate layers each including an ethylene vinyl alcohol copolymer; a first and second outer layer each including an olefinic copolymer or an amorphous cyclic olefin copolymer; and two tie layers each adhering an intermediate layer to a respective outer layer; the ethylene vinyl alcohol copolymer of the first intermediate layer having a mole % ethylene at least 5 greater than the mole % ethylene of the ethylene vinyl alcohol copolymer of the second intermediate layer An aseptic package includes a sterilized food product, and a sterilized pouch in which the sterilized food product is disposed, the sterilized pouch including the film of the invention. A method of making an aseptic package is also disclosed.Type: GrantFiled: April 30, 2010Date of Patent: February 19, 2013Assignee: Cryovac, Inc.Inventor: Solomon Bekele
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Publication number: 20130040084Abstract: The composite bag of the present invention generally comprises a multi-layered, inner laminated woven bag for bulk packaging of food products, particularly rice and grain products. The composite bag of the present invention generally comprises a top outer layer made of a polymer film and further comprising an anti-skid coating on one surface and reverse printed matter on its opposing surface; a middle layer comprising a polymer woven layer; a base inner-barrier layer comprising a polymer film that forms the interior liner of the composite bag; and a plurality of holes formed by the top outer layer, the middle layer, and the base inner-barrier layer. The layers of the present invention can be adhesively laminated to each other.Type: ApplicationFiled: August 14, 2012Publication date: February 14, 2013Inventor: Su Youn Han
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Publication number: 20120328806Abstract: A compostion comprising: at least one copolymer (A) of vinylidene chloride and of at least one comonomer copolymerizable therewith selected from butyl acrylates; and from 1 to 20% by weight, relative to the total weight of the composition, of at least one polymeric plasticizer (B) selected from polyesters derived from a polycondensation reaction of at least one aliphatic polycarboxylic acid and at least one polyhydroxylated aliphatic alcohol. The composition is suitable for the preparation of mono- or multi-layer films for the packaging of food products.Type: ApplicationFiled: March 8, 2011Publication date: December 27, 2012Applicant: SOLVAY SAInventors: Pascal Dewael, Agnes Chapotot, Yves Vanderveken
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Publication number: 20120318698Abstract: The presently disclosed subject matter is directed to a multilayer coextruded sterilizable film that can be used for aseptic packaging applications. The film comprises an outer layer comprising a blend of a cyclic olefin copolymer with a glass transition temperature of at least 80° C. and an olefinic copolymer with a melting point of at least 125° C. The film has a storage modulus of at least 109 dynes/cm2 at temperatures of up to 140° C. An aseptic package and a method of making an aseptic package are also disclosed.Type: ApplicationFiled: June 14, 2011Publication date: December 20, 2012Applicant: CRYOVAC, INC.Inventor: Solomon Bekele
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Patent number: 8298636Abstract: Provided is an EVOH resin composition suitable for use as a multilayer structure serving as a material for molded articles, in particular, liquid container such as bags for bag-in-boxes. The EVOH resin composition has such flexibility that even when used in applications where the resin composition is repeatedly folded or deformed over a long period, the resin composition does not develop pinholes or the like, and further has excellent gas barrier properties and melt molding stability.Type: GrantFiled: November 4, 2011Date of Patent: October 30, 2012Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventors: Shouichi Kani, Noriaki Kurokawa
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Patent number: 8293346Abstract: The objective of the invention is to provide a gas barrier resin composition that is excellent in oxygen absorbability and further excellent in adhesiveness to olefin resins, a structure comprising the same, and a multi-layer structure comprising the same. The oxygen-absorbing gas barrier resin composition disclosed comprises a cyclized product of a conjugated diene polymer and an ethylene/vinyl alcohol copolymer having a specified oxygen permeation rate. The oxygen-absorbing gas barrier resin composition further comprises an ?-olefin resin. The oxygen-absorbing gas barrier structure is obtained by molding the subject oxygen-absorbing gas barrier resin composition. The oxygen-absorbing gas barrier multi-layer structure comprises a layer of the subject oxygen-absorbing gas barrier structure and a sealing material layer.Type: GrantFiled: March 17, 2006Date of Patent: October 23, 2012Assignee: Zeon CorporationInventors: Shizuo Kitahara, Yasushi Tanaka
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Patent number: 8293349Abstract: A dilatation balloon formed with at least one layer, the layer including at least one polymeric material and at least one material which is a heating medium, the heating medium sensitive to an electromagnetic field.Type: GrantFiled: May 24, 2004Date of Patent: October 23, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: John Jianhua Chen, Jan Weber
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Patent number: 8282765Abstract: The present invention provides an adhesive sheet for attaching to a plasticized vinyl chloride resin article such as a blood bag made of a plasticized vinyl chloride resin, and having a center-line surface roughness Ra of 1.0 ?m or higher, which includes a film substrate and a heat-sensitive adhesive layer formed on a backside surface of the film substrate, wherein the heat-sensitive adhesive layer is composed of a resin containing a crystalline polyester resin as a main component. The adhesive sheet of the present invention is excellent in adhesive property when the adhesive sheet is attached to the article made of a plasticized vinyl chloride resin. The adhesive strength of the adhesive sheet of the present invention is not decreased even after an autoclave treatment or storage at a low temperature.Type: GrantFiled: November 21, 2011Date of Patent: October 9, 2012Assignee: Lintec CorporationInventors: Toshihiko Sakuma, Kouji Tabata
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Publication number: 20120244300Abstract: The layered product of the present invention has a base, and a gas barrier layer stacked on the base. The gas barrier layer is formed of a composition that includes a hydrolyzed condensate of a compound (L) containing a hydrolyzable characteristic group, and a neutralized product of a polymer (P) containing at least one functional group selected from the group consisting of carboxyl group and carboxylic acid anhydride group. The compound (L) includes a compound (L1) and a compound (L2). The compound (L1) and the compound (L2) each contains a silicon atom to which the hydrolyzable characteristic group is bonded. The compound (L1) contains an organic group having amino group. The compound (L2) does not contain an organic group having amino group. At least part of the —COO— group in the at least one functional group contained in the polymer (P) is neutralized with a divalent or higher valent ion (E) of a metal element that has a higher electronegativity than calcium.Type: ApplicationFiled: September 28, 2010Publication date: September 27, 2012Applicant: Kuraray Co., Ltd.Inventors: Kentaro Yoshida, Wataru Hirose, Manabu Shibata, Tatsuya Oshita
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Patent number: 8268420Abstract: A wrap film having very stable physical properties wherein a sock liquid maintains the lubricating effect as an opening agent while a sock is stabilized and parison width changes and meandering are reduced to eliminate parison wrinkles is provided. Specifically, the wrap film is a wrap film made of a polyvinylidene chloride-based resin prepared by melt-extruding a polyvinylidene chloride-based resin from a die in tubular form, cooling the outer side of the extrudate by using a coolant while an aqueous solution of a liquid that is compatible with water and forms one-component is retained in the hollow portion of the extrudate, and inflating the solidified extrudate, wherein the liquid that is compatible with water and forms one-component has a concentration of 80 to 95% by mass in the aqueous solution, and the liquid is applied to the wrap film in amounts of 50 to 4,000 ppm.Type: GrantFiled: March 12, 2008Date of Patent: September 18, 2012Assignee: Asahi Kasei Chemicals CorporationInventors: Michihiro Yatsuzuka, Hisaaki Kobayashi
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Publication number: 20120231188Abstract: A process for enhancing the gas barrier properties of a composite laminate material whilst maintaining adequate bond strength, in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion is positioned between two flexible plastics films using an adhesive, wherein a coating is applied to a first flexible polymer film at a coating weight (D), an adhesive is applied to either or both of the coated side of the first film or to a second polymer film and adhering the first and second films together to provide a material in which: (A/B).(C/D)>200, and in which: A/B>75; C>1.0; and D<1.5; wherein: A=Oxygen Transmission Rate for the laminate at 23 OC and 50% RH without the coating; B=Oxygen Transmission Rate for the laminate at 23 OC and 50% RH with the coating; C=Bond Strength in N/15 mm after the adhesive has fully cured; D=Coating Weight in g/m2 (dry).Type: ApplicationFiled: September 1, 2010Publication date: September 13, 2012Applicant: Sun Chemical B.V.Inventors: Derek R. Illsley, Graham T. Street
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Patent number: 8263206Abstract: The invention relates to a perforated film composition, comprising at least three layers, and wherein at least one layer is a inner layer with a softening and/or melting temperature, lower than the respective softening and/or melting temperatures of at least two outer layers, located at opposite surfaces of the inner layer, and where upon exposure to elevated temperature, the inner layer softens or melts to such an extent, that upon exposure to a compression force, a sufficient number of perforations seal in the inner layer, to impart an increased moisture barrier to the overall film composition. The invention also relates to a method of forming such a perforated film composition, packages prepared from the same, and a method of filling packages prepared from the perforated film composition.Type: GrantFiled: July 7, 2006Date of Patent: September 11, 2012Assignee: Dow Global Technologies LLCInventors: Kurt Kronawittleithner, Herbert Bongartz, Anne Descheemaeker
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Patent number: 8252396Abstract: The presently disclosed subject matter is directed to a barrier film that maintains an oxygen barrier after being subjected to autoclaving conditions. The film comprises one EVOH layer positioned as a core layer, and one EVOH layer positioned directly adjacent to an outer layer comprising highly permeable material having a moisture vapor permeability greater than about 40 g-mil/100 in2-day-atm. During autoclaving, the barrier properties of the EVOH layer positioned adjacent to the outer layer allows improved recovery of oxygen barrier properties. In addition, during rewetting applications, the internal EVOH layer maintains the oxygen barrier. Also disclosed are methods of making and using the disclosed barrier film.Type: GrantFiled: September 16, 2011Date of Patent: August 28, 2012Assignee: Cryovac, Inc.Inventors: Walter B. Mueller, Patrick W. Thompson
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Publication number: 20120207954Abstract: The present invention provides a novel packaging laminate designed particularly for packaging highly hygroscopic, pelleted, flowable materials. It is a multilayer structure which incorporates a layer of heat-sealable polymeric material which has had a thin film of aluminum deposited onto it by vapour coating. This layer combined with a further effective barrier layer provides the low WVTR in the range required by such highly hygroscopic materials. This laminate can be used with additional structural layers of paper or plastic, to form bags that have the features of very low WVTR, excellent puncture resistance, and excellent heat sealability.Type: ApplicationFiled: February 14, 2011Publication date: August 16, 2012Applicant: Hood Packaging CorporationInventors: Jean-Francois DALPE, Ian LLOYD-GEORGE
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Patent number: 8206798Abstract: The formed product of the present invention is a formed product selected from the group consisting of a vertical form fill seal pouch, a container cover and a vacuum packaging pouch. The formed product is formed using a gas barrier layered product. The gas barrier layered product includes a base, and at least one layer with gas barrier properties that is stacked on the base. The layer is formed of a composition that includes a hydrolyzed condensate of a compound (L) and a neutralized product of a polymer (X) containing a carboxyl group or a carboxylic acid anhydride group. The compound (L) includes a compound (A) that contains M1 (Al, Ti or Zr) to which a hydrolyzable characteristic group is bonded and a compound (B) that contains Si to which a hydrolyzable characteristic group is bonded. At least part of —COO— group of the polymer (X) is neutralized with a metal ion having a valence of at least two. At least 80 mol % of the compound (B) is a compound expressed by a specific formula.Type: GrantFiled: November 4, 2009Date of Patent: June 26, 2012Assignee: Kuraray Co., Ltd.Inventors: Manabu Shibata, Tatsuya Oshita, Wataru Hirose
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Patent number: 8202590Abstract: Heat shrinkable oriented multilayer films are disclosed that comprise a structural layer, a heat sealing layer and a gas barrier layer. The structural layer comprises a polymer selected from the group consisting of copolymers of ethylene and a C3 to C8,-ethylenically unsaturated carboxylic acid, ionomers of the copolymers, polyesters, and blends thereof. The heat sealing layer comprises a polymer selected from the group consisting of ethylene vinyl acetate copolymers, ethylene alkyl acrylate copolymers, ethylene alkyl methacrylate copolymers, polyethylene, and blends thereof. The barrier layer, which is positioned between the structural and heat sealing layer, comprises at least one ethylene vinyl alcohol copolymer that has from about 2 to about 8 mol % 1,2-glycol structural units incorporated in the copolymer backbone chain. The films are particularly suitable for use in manufacture of shrinkbags.Type: GrantFiled: July 23, 2007Date of Patent: June 19, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: I-Hwa Lee, Heiko E. Schenck
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Publication number: 20120150320Abstract: A tubular liner has an open proximal end and a closed-end distal area, and a fabric layer continuously defining an exterior surface of the liner without interruption. A polymeric layer having first and second surfaces is bonded to an interior surface of the fabric layer. A seam is formed by opposed sides of the fabric layer joined together and forming an excess portion directed toward the cavity of the liner. The excess portion is embedded in the polymeric layer.Type: ApplicationFiled: February 16, 2012Publication date: June 14, 2012Inventors: Asmundur Bergmann BJARNASON, Sigurdur ASGEIRSSON
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Patent number: 8182888Abstract: A polymer with a backbone and an unsaturated side chain attached to the backbone. The polymer may optionally be combined with an oxidation catalyst and/or other ingredients.Type: GrantFiled: July 8, 2011Date of Patent: May 22, 2012Assignee: Valspar Sourcing, Inc.Inventors: Paul E. Share, Keith R. Pillage, Charles I. Skillman, Paul E. Fuchs
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Patent number: 8178180Abstract: The invention relates to a heat-sealable packaging material and a sealed package formed from the same, especially for packaging foodstuffs. The packaging material comprises a base layer of paper or board and polymeric heat-sealable layers on one side of the base layer or, preferably, on both sides thereof. According to the invention, at least two layers of ethylene vinyl alcohol copolymer (EVOH) with different fractions of ethylene monomer are arranged on the packaging material to provide an oxygen barrier. The layers can locate against each other without a tie layer between them. The heat-sealable polymer can be a polyolefin, and, in addition, other polymeric barrier layers can be incorporated into the material to improve its oxygen, fat and aroma tightness.Type: GrantFiled: July 26, 2007Date of Patent: May 15, 2012Assignee: Stora Enso OyjInventors: Tapani Penttinen, Kimmo Nevalainen
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Patent number: 8137774Abstract: Disclosed are compositions comprising ethylene/vinyl acetate copolymers, tackifying resins and optionally polyolefins (for example, polyethylene and polypropylene) that provide strong, tight hermetic heat seals with an easily peelable opening feature to fluoropolymers such as polychlorotrifluoroethylene. Also disclosed are multilayer structures and packages comprising these compositions.Type: GrantFiled: November 30, 2010Date of Patent: March 20, 2012Assignee: E.I. Du Pont de Nemours and CompanyInventors: Terrance D. Kendig, Stephen Robert Tanny
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Publication number: 20120064267Abstract: A method for manufacturing a non stick medical tube is provided. The method includes providing a first plastic resin to a tubing extrusion device and providing a second plastic resin to a tubing extrusion device, the second plastic resin comprising a medical grade amide compound. The method further includes mixing the first plastic resin with the second plastic resin and extruding the resin mixture such that said medical grade amide compound is present on an inner surface of said medical tube after extrusion to promote release of contacting surfaces of said inner surface of the medical tubing after contact.Type: ApplicationFiled: September 10, 2010Publication date: March 15, 2012Inventors: Ludmila Victoria Nikitina, Kenneth Whitley
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Patent number: 8129006Abstract: The present invention refers to a multilayer heat shrinkable film characterized by a combination of desirable properties, such as high shrinkage, good optical properties, excellent sealability and stack sealability. The invention further is directed to a method of producing said film. The invention is further directed to the use of said film or bags and pouches made therefrom for packaging goods as for example food products. The invention also refers to tubes made with the film.Type: GrantFiled: September 28, 2006Date of Patent: March 6, 2012Assignee: Flexopack S.A.Inventor: Dimitrios Ginossatis
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Publication number: 20120052225Abstract: Provided is an EVOH resin composition suitable for use as a multilayer structure serving as a material for molded articles, in particular, liquid container such as bags for bag-in-boxes. The EVOH resin composition has such flexibility that even when used in applications where the resin composition is repeatedly folded or deformed over a long period, the resin composition does not develop pinholes or the like, and further has excellent gas barrier properties and melt molding stability.Type: ApplicationFiled: November 4, 2011Publication date: March 1, 2012Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Shouichi KANI, Noriaki KUROKAWA
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Patent number: 8105667Abstract: A multi-layer film with barrier properties having one or more layers made from a bio-based film is disclosed. In one aspect, a multi-layer packaging film including (a) an outer layer including a bio-based film, wherein the bio-based film is polylactide, (b) an adhesive layer adjacent to the outer layer and (c) a product side layer including a metalized polyolefin having barrier properties, wherein the multi-layer packaging film is a flexible film.Type: GrantFiled: April 21, 2011Date of Patent: January 31, 2012Assignee: Frito-Lay North America, Inc.Inventors: Anthony Robert Knoerzer, Brad Dewayne Rodgers
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Patent number: 8105666Abstract: Compliant coatings for insertable medical articles are provided. In some aspects, the coating includes a diene polymer-containing layer, and a second coated layer that includes another polymer. The coating can be formed by coupling the polymer of the second coated layer to the first coated layer via latent reactive groups, such as photoreactive groups. In other aspects, the insertable medical article has a coating that provides different functional features to different surfaces of the article. The medical article can have a cylindrical shape with an interior surface having a first coating, and an exterior surface with a second coating, wherein the article also includes a plurality of openings.Type: GrantFiled: March 14, 2006Date of Patent: January 31, 2012Inventor: Michael J. Finley
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Publication number: 20120009368Abstract: A gas barrier film in which a gas barrier layer deposited by catalyst CVD in contact with each of both main surfaces of a plastic film is an SiCNFH layer satisfying conditions of 0.01<I(SiH)/I(SiN)<0.05, 0.00<I(CH)/I(SiN)<0.07, 0.04<I(NH)/I(SiN)<0.08, and 0.05<I(CF)/I(SiN)<0.3; an SiOCNH layer satisfying conditions of 0.1<I(SiH)/I(NH)<0.9, 0.0<I(CH)/I(NH)<0.3, 8<I(SiN)/I(NH)<20, and 2<I(SiO2)/I(NH)<8; or an SiCNH layer satisfying conditions of 0.01<I(SiH)/I(SiN)<0.05, 0.00<I(CH)/I(SiN)<0.07 and 0.04<I(NH)/I(SiN)<0.08. Here, the “I” represents peak intensity of Fourier transform infrared spectroscopy related to an atomic bond shown in the parentheses after the “I”.Type: ApplicationFiled: March 23, 2010Publication date: January 12, 2012Applicants: AIR WATER INC., MATERIAL DESIGN FACTORY CO., LTD.Inventor: Hiroshi Nakayama
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Patent number: 8075964Abstract: The presently disclosed subject matter is directed to a barrier film that maintains an oxygen barrier after being subjected to autoclaving conditions. The film comprises one EVOH layer positioned as a core layer, and one EVOH layer positioned directly adjacent to an outer layer comprising highly permeable material having a moisture vapor permeability greater than about 40 g-mil/100 in2-day-atm. During autoclaving, the barrier properties of the EVOH layer positioned adjacent to the outer layer allows improved recovery of oxygen barrier properties. In addition, during rewetting applications, the internal EVOH layer maintains the oxygen barrier. Also disclosed are methods of making and using the disclosed barrier film.Type: GrantFiled: June 24, 2008Date of Patent: December 13, 2011Assignee: Cryovac, Inc.Inventors: Walter B Mueller, Patrick W. Thompson
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Publication number: 20110287199Abstract: A long life balloon formed from a lamination. The lamination includes a polyester film with a total thickness of 4 ?m to 12 ?m. The polyester film includes a biaxially oriented polyester core layer and at least one amorphous copolyester skin layer. The lamination also includes a sealant layer and a gas barrier layer on an opposite side of the polyester film from the sealant layer. The oxygen transmission rate of the balloon is less than 0.1 cc/100 sqin/day, a bonding strength of the gas barrier layer to the surface of the polyester film is more than 300 g/in at dry conditions, a sealing strength of the balloon is more than 3.5 kg/in, and a floating time of the balloon is more than 20 days.Type: ApplicationFiled: August 2, 2011Publication date: November 24, 2011Applicants: Anagram International, Inc., TORAY PLASTICS (AMERICA), INC.Inventors: Gianfranco CHICARELLA, Nao YOKOTA, Tracy A. PAOLILLI, John J. FITCH, Todd R. SARNSTROM, Dean BORCHARDT, Paul A. ANSOLABEHERE, Steven SARGEANT
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Publication number: 20110281047Abstract: A method of constructing an aerostat involves using a self-mating adhesive system to bind a first barrier film and a second barrier film together. The adhesive precursors of the self-mating adhesive system are applied to the first and second barrier films at the desired point of bonding between the films. Following the application of the adhesive precursors, the barrier films are pressed together to bring the adhesive precursors into contact with each other. A self-mating adhesive layer, which binds the first and second barrier films together, is formed as a result of the reaction between the adhesive precursors. Thereafter the aerostat is die cut out of the web film. The method of the present invention results in aerostats with a bond line at the edge of the desired shape. These aerostats have a reduced weight compared to aerostats made using conventional practices employing a heat sealing layer.Type: ApplicationFiled: May 12, 2011Publication date: November 17, 2011Applicant: Anagram International, Inc.Inventors: Paul A. Ansolabehere, Dean S. Borchardt, Todd R. Sarnstrom, SR.
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Patent number: 8025973Abstract: The invention relates to the papermaking art and, in particular, to the manufacture of paper substrates, paper-containing articles such as multilayered paper or paperboard packaging, containing a fluorine-containing compound and having enhanced glueability and/or grease resistance.Type: GrantFiled: July 24, 2006Date of Patent: September 27, 2011Assignee: Internatonal Paper CompanyInventors: Richard F Rudolph, Timothy J Bradford, Barry Chapman, Pat Morabito
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Patent number: 8012554Abstract: Bags or liners having incorporated therein an effective amount of odor management agents including a counteractant agent, a neutralizing agent and optionally, a masking agent, whereby the odor management agent imparts no perceptible scent to the bags or liners, such that the bags or liners are substantially free of fragrance while the odor management agent reduces malodor emanating from products disposed within the bag. Further, the invention is drawn to web materials for use in forming the bags or liners having odor management agents. The odor management agent is disposed within the bag or dispersed substantially uniformly throughout the web.Type: GrantFiled: September 12, 2007Date of Patent: September 6, 2011Assignee: Pactiv CorporationInventors: Lindsay Shelley, Chieh-Chun Chau, Wayne J. Moras, Harley E. Erb, IV
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Publication number: 20110189413Abstract: Disclosed are plasticized, water-soluble films having favorable cold-water solubility, wet handling, and thermoforming characteristics, and which can include a PVOH resin made up of blend of two or more PVOH polymers each having a monomodal molecular weight distribution, and the PVOH resin characterized by a viscosity in a range of about 13.5 cP to about 20 cP (or a corresponding weight average molecular weight), a degree of hydrolysis of about 84% to about 92%, a polydispersity index value in a range of about 1 to about 5, a residual water content of about 4 wt. % to about 10 wt. %, and a Resin Selection Index value in a range of 0.255 to 0.315; methods of making the films; compositions including PVOH resins for making the films; and pouch and packet articles made from the films.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicant: MONOSOL, LLCInventors: Frank W. Denome, Steven G. Friedrich, Regine Labeque, David M. Lee, Roxane Rosmaninho, Jichun Shi, Andrew P. Verrall
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Patent number: 7968134Abstract: Films comprising a liquid-absorbant layer and an impermeable layer are provided. Processes for manufacturing these films is also provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs. Also described are foodstuffs processed in the tubular casings.Type: GrantFiled: September 22, 2009Date of Patent: June 28, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: I-Hwa Lee, James Michael McKenna, Raghuram Narumanchi
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Patent number: 7964226Abstract: Films comprising a liquid-absorbant layer and an impermeable layer are provided. Processes for manufacturing these films is also provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs. Also described are foodstuffs processed in the tubular casings.Type: GrantFiled: September 22, 2009Date of Patent: June 21, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: I-Hwa Lee, James Michael McKenna, Raghuram Narumanchi
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Publication number: 20110143066Abstract: A gas barrier layer constituted from a material based upon a rubber composition and a rubber article with a gas barrier layer constituted from a material based upon a rubber composition. The composition comprising, per 100 parts by weight of elastomer, a highly unsaturated diene elastomer, a butyl rubber, an aromatic hydrocarbon resin having a softening point of between 75° C. and 120° C. and an aliphatic hydrocarbon resin having a glass transition temperature greater than about 40° C. and a softening point of less than about 140° C.Type: ApplicationFiled: May 14, 2009Publication date: June 16, 2011Inventor: Linda M. Roddy
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Patent number: 7951436Abstract: A multi-layer film with barrier properties having one or more layers made from a bio-based film is disclosed. In one aspect, a multi-layer packaging film including(a) an outer layer including a bio-based film, wherein the bio-based film is polyhydroxy-alkanoate, wherein the bio-based film includes a graphic image, (b) an adhesive layer adjacent to the outer layer and (c) a product side layer including a metalized polyolefin having barrier properties, wherein the multi-layer packaging film is a flexible film.Type: GrantFiled: August 14, 2006Date of Patent: May 31, 2011Assignee: Frito-Lay North America, Inc.Inventors: Anthony Robert Knoerzer, Brad Dewayne Rodgers
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Publication number: 20110125114Abstract: A noise dampening film is provided, and in particular, a film having at least one quiet layer that comprises a polymer resin and from about 5 to 50 weight percent of a styrene-vinyl polyisoprene-styrene block-co-polyisopyrene block triblock polymer. The quiet layer has a tan delta of at least about 0.27 or greater at a temperature range between about 17° C. and 40° C.Type: ApplicationFiled: November 20, 2009Publication date: May 26, 2011Inventor: Solomon Bekele
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Publication number: 20110118679Abstract: An RF sealable composition and film is provided in which the composition and film includes a blend of an ethylene/alpha-olefin and an ethylene acrylate copolymer. The composition and resulting film has a dielectric loss factor of at least 0.02 and is capable of being radio frequency sealed. Films in accordance with the invention provide RF seals having peel strengths on the order of 500 g/in or greater. In a further aspect, a film is provided having at least one exterior layers that comprises a blend of an ethylene/alpha-olefin copolymer and an ethylene acrylate copolymer. Suitable ethylene acrylate copolymers for use in the invention include of ethylene vinyl acetate (EVA), ethylene butyl acrylate (EBA), and ethylene methyl acrylate (EMA).Type: ApplicationFiled: November 17, 2009Publication date: May 19, 2011Inventors: Solomon Bekele, Romano Spigaroli
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Patent number: 7943215Abstract: For the packaging of consumables and feed stuffs, which are to be protected from oxygen, however emit moisture, a multilayer foil is proposed, which includes at least one blocking layer and one sealing layer. The blocking layer is characterized by a high barrier function for gas, in particular oxygen, and a good water vapor permeability. The sealing layer ensures good sealing characteristics and a high water vapor permeability.Type: GrantFiled: March 26, 2008Date of Patent: May 17, 2011Assignees: Hans Alder OHGInventor: Klaus Josef Hoegg
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Patent number: 7943218Abstract: A multi-layer film with barrier properties having two or more layers made from a bio-based film is disclosed. In one aspect, the print web comprises a bio-based film. In one aspect, the barrier web comprises a bio-based film. In one aspect, a bio-based adhesive adheres the print web to the barrier web. The bio-based film can include paper, PCR, polylactide or polyhydroxy-alkanoate. Unlike prior art petroleum-based films, the bio-based film of the present invention is made from a renewable resource and is biodegradable.Type: GrantFiled: February 14, 2008Date of Patent: May 17, 2011Assignee: Frito-Lay North America, Inc.Inventors: Anthony Robert Knoerzer, Kenneth Scott Laverdure, Brad Dewayne Rodgers
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Patent number: 7943220Abstract: A polyester pocket with a clear front and back is provided. A spun-bonded polyester strip is positioned near the open end of the polyester pocket to prevent atmospheric contaminants from entering the polyester pocket. The spun-bonded polyester strip also allows the polyester pocket to lay flat when multiple polyester pockets are stacked upon one another. The thickness of the spun-bonded polyester can be made to roughly correspond to the thickness of documents inserted into the polyester pocket.Type: GrantFiled: June 27, 2006Date of Patent: May 17, 2011Assignee: Louisiana Binding Service, Inc.Inventor: Patrick R. Williams
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Patent number: 7939152Abstract: A heat-shrinkable anti-fomitic device in the form of a bag or tube forms a cover for an object which prevents cross-infection by bacteria and other pathogens that may reside on the object. The heat-shrinkable anti-fomitic device can have a sterile interior that is sealed or stored flat 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. A plurality of such devices can be heat shrunk to an object such that removal of the outer layer will prevent cross contamination. Heat shrink film materials for the coverings/bags serve as a barrier to the transmission of pathogens.Type: GrantFiled: May 30, 2008Date of Patent: May 10, 2011Assignee: M-Tech CorporationInventors: Marvin E. Haskin, Jon L. Roberts, Christopher B. Kilner
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Patent number: 7939149Abstract: A heat-shrinkable anti-fomitic device incorporating anti-microbial metal wherein the device, in the form of a bag or tube, forms a cover for an object, preventing cross-infection by bacteria and other pathogens that may reside on the object. Anti-microbial metal ions from the cover further reduce future cross-infection from the object by killing pathogens. The anti-microbial, heat-shrinkable, anti-fomitic device can have a sterile interior that is sealed or stored flat during manufacture to maintain sterility. Therefore, no outer wrapping for the anti-fomitic device is required. The anti-fomitic device can be inverted when used to cover the object to present an outer surface that is initially sterile. A plurality of such devices can be heat shrunk to an object such that removal of the outer layer will further prevent cross contamination. Heat shrink film materials for the coverings/bags serve as a barrier to the transmission of pathogens and conform closely to the covered object.Type: GrantFiled: June 2, 2008Date of Patent: May 10, 2011Assignee: M-Tech CorporationInventors: Marvin E. Haskin, Jon L. Roberts, Christopher B. Kilner
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Patent number: 7939150Abstract: Fluoropolymer-containing lidding films for food, non-food and medical packages, including a two-piece sealed package having container and lid portions that are readily separable from each other. Thin, transparent films may be formed having excellent barrier properties suitable for packaging applications, particularly blister packaging.Type: GrantFiled: August 16, 2005Date of Patent: May 10, 2011Assignee: Honeywell International Inc.Inventors: Carl E. Altman, John B. Blum
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Patent number: 7914900Abstract: The present invention provides a receptacle (30) for a therapeutic fluid susceptible to deterioration on exposure to a gas such as oxygen or carbon dioxide. The receptacle (30) has walls of sheet material each including at least one layer forming a barrier essentially impermeable to such gas, and a seal sealing the walls together in a region thereof. A transfer tube (40) is sealed in the seal having a proximal end in the receptacle (30), a distal end accessible from outside the receptacle (30), a flow passage (56) extending between said proximal and distal ends, and a closure (54) blocking flow through the flow passage (56) adapted to be pierced by a tubular needle for transfer of therapeutic through the needle. The transfer tube (40) and closure (54) are essentially impermeable to said gas.Type: GrantFiled: August 21, 2008Date of Patent: March 29, 2011Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Sidney T. Smith, Larry Rosenbaum, Sue Rosenbaum, legal representative, Gregg Nebgen, Steven H. Giovanetto
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Patent number: 7910185Abstract: An oxygen absorbing resin comprising a carbon atom bonded to a carbon to carbon double bond group and further bonded to one hydrogen atom, the carbon atom contained in an alicyclic structure, which oxygen absorbing resin having been exposed to radiation. Further, there is provided an oxygen absorbing resin comprising a carbon atom bonded to both of the structure (a) carbon to carbon double bond group and (b) heteroatom-containing functional group or, as a bonding group derived from the functional group, carbon to carbon double bond group or aromatic ring, and further bonded to one or two hydrogen atoms, the carbon atom contained in an alicyclic structure.Type: GrantFiled: October 20, 2006Date of Patent: March 22, 2011Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Yoichi Ishizaki, Nobuo Hirakawa
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Patent number: 7887903Abstract: The present invention provides a laminated film including at least two layers of an outer layer having a printed portion on a surface and an inner layer subjected to an antifogging treatment in which principal resin comprising a solid content of the printed portion is made of chlorinated polypropylene-based resin or urethane-based resin. This antifog laminated film hardly degrades in an antifogging property even when the antifog laminated film subjected to printing on the outer layer of a surface subjected to the antifogging treatment and the printed surface are strongly brought into contact with each other due to an operation of winding the film into a roll or the like.Type: GrantFiled: April 19, 2005Date of Patent: February 15, 2011Assignee: Kureha CorporationInventors: Tsutomu Uehara, Takeo Omori, Tadayoshi Itoh
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Patent number: 7842361Abstract: The invention aims at providing an oxygen-absorbing resin which has excellent oxygen absorption performance and which can dispense with the addition of a transition metal catalyst or the irradiation with a radiation. The invention provides an oxygen-absorbing resin which is obtained by polymerizing a raw material containing a monomer (A) having an unsaturated alicyclic structure bearing a carbon-carbon double bond wherein one carbon atom adjacent to the carbon-carbon double bond is bonded to an electron-donating substituent and a hydrogen atom and another carbon atom adjacent to the carbon atom is bonded to a heteroatom-containing functional group or a bonding group derived from the functional group with the electron-donating substituent and the functional or bonding group taking cis-configuration and which contains the unsaturated alicyclic structure in an amount of 0.Type: GrantFiled: October 10, 2008Date of Patent: November 30, 2010Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Yoshihiro Ohta, Yoichi Ishizaki
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Publication number: 20100297371Abstract: A film for food packaging which is excellent in workability, processability, productivity, gas-barrier properties, low-temperature heat sealability, safety, and mechanical strength. It can be a substitute for conventional cellophane/wax films, and is suitable for use as a packaging film for molten cheese, etc. The film for food packaging is composed of at least five layers, i.e., a fusion-bondable layer/adhesive layer/gas-barrier layer/adhesive layer/fusion-bondable layer, wherein the fusion-bondable layers are made of an olefin resin and melt at a temperature which is not lower than 60° C. and is lower than 90° C.Type: ApplicationFiled: October 29, 2007Publication date: November 25, 2010Applicant: SHIKOKU KAKOH CO., LTD.Inventors: Masanori Mitani, Ryo Matsuura, Kazuhito Takebayashi
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Publication number: 20100272936Abstract: A multilayer structure comprises at least one barrier layer comprising at least one vinylidene chloride polymer, at least one UV protecting layer, and at least one reflective layer wherein none of these layers also serve as a sealing layer. The multilayer structure is preferably a film, more preferably in the form of a pouch, preferably for packaging flowable product, especially milk. When used as a milk pouch, the structure is more effective at protecting milk from deterioration at ambient temperature and humidity than is a similar multilayer structure having an ethylene vinyl alcohol barrier layer. The multilayer structure preferably has more than one reflective layers and is preferably in the form of a pillow pouch.Type: ApplicationFiled: November 21, 2008Publication date: October 28, 2010Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventors: Michael D. White, Carlos E. Ruiz, Claudia Hernandez, Steven R. Jenkins