Contains Vapor Or Gas Barrier, Polymer Derived From Vinyl Chloride Or Vinylidene Chloride, Or Polymer Containing A Vinyl Alcohol Unit Patents (Class 428/36.6)
  • Patent number: 7951438
    Abstract: A metallized laminate film exhibiting improved moisture barrier property as well as maintaining a high bio-polymer content and degradability property is disclosed. The laminate film includes a first core layer of polylactic acid polymer and a second skin layer comprising a polyolefin metal receiving layer. The metal receiving layer or the core layer, or both, may be blended with an amount of polar-modified tie-resin to improve bonding. Alternatively, a discrete tie-resin layer may be interposed between the polyolefin metal receiving layer and the crystalline polylactic acid polymer core layer. The polyolefin metal receiving layer may be discharge-treated on the side opposite the core layer and metallized.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: May 31, 2011
    Assignee: Toray Plastics (America), Inc.
    Inventors: Mark S. Lee, Keunsuk P. Chang
  • Patent number: 7951436
    Abstract: 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: Grant
    Filed: August 14, 2006
    Date of Patent: May 31, 2011
    Assignee: Frito-Lay North America, Inc.
    Inventors: Anthony Robert Knoerzer, Brad Dewayne Rodgers
  • Publication number: 20110123744
    Abstract: In a gas-barrier laminate having a layer structure of aromatic polyester resin/polyglycolic acid resin/aromatic polyester resin, a small amount of an aromatic polyester resin polymerized with a germanium compound (catalyst) is blended to the polyglycolic acid resin forming the core layer, thereby surface-roughening the polyglycolic acid resin layer. As a result, the peeling resistance between the polyglycolic acid resin/aromatic polyester resin layers is practically improved while maintaining a good gas-barrier property.
    Type: Application
    Filed: July 3, 2009
    Publication date: May 26, 2011
    Inventors: Hiroyuki Sato, Yoshinori Suzuki, Moriaki Arasaki, Takashi Sato, Satoru Suzuki
  • Patent number: 7943218
    Abstract: 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: Grant
    Filed: February 14, 2008
    Date of Patent: May 17, 2011
    Assignee: Frito-Lay North America, Inc.
    Inventors: Anthony Robert Knoerzer, Kenneth Scott Laverdure, Brad Dewayne Rodgers
  • Patent number: 7943691
    Abstract: A high HDT CPVC compound that is optically clear is disclosed. The choice of CPVC resin, the use of external lubricants, and other optional ingredients achieves a threshold of optical clarity for the compound to be used to make optically clear articles via extrusion or molding. An optically clear CPVC industrial pipe is particularly useful for monitoring of fluid flow.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: May 17, 2011
    Assignee: PolyOne Corporation
    Inventors: Saleem Shakir, Sang Lee
  • Patent number: 7943215
    Abstract: 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: Grant
    Filed: March 26, 2008
    Date of Patent: May 17, 2011
    Assignees: Hans Alder OHG
    Inventor: Klaus Josef Hoegg
  • Patent number: 7939151
    Abstract: A coolant line includes an outer layer including a polyamide molding composition and an inner layer including polypropylene and at least 0.02% by weight of a heat stabilizer. The coolant line has a high thermal aging resistance and bursting strength.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: May 10, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Karl Kuhmann, Rainer Goering, Roland Wursche, Juergen Franosch, Hans Ries, Clemens Jacobs
  • Patent number: 7939150
    Abstract: 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: Grant
    Filed: August 16, 2005
    Date of Patent: May 10, 2011
    Assignee: Honeywell International Inc.
    Inventors: Carl E. Altman, John B. Blum
  • Patent number: 7939152
    Abstract: 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: Grant
    Filed: May 30, 2008
    Date of Patent: May 10, 2011
    Assignee: M-Tech Corporation
    Inventors: Marvin E. Haskin, Jon L. Roberts, Christopher B. Kilner
  • Publication number: 20110097527
    Abstract: A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.
    Type: Application
    Filed: April 17, 2007
    Publication date: April 28, 2011
    Applicant: Kuraray Co., Ltd
    Inventors: Kaoru Ikeda, Masakazu Nakaya, Kazuhiro Kurosaki, Tomoyuki Watanabe
  • Publication number: 20110097528
    Abstract: A packaging element formed from a plastic with an inorganic barrier layer with good penetration barrier effect against water vapour and gasses, where the packaging element is fitted with a coating generated in a vacuum with materials with the desired penetration barrier effect. The vacuum coating is over-lacquered to protect against abrasion and corrosion and to improve the mechanical stability.
    Type: Application
    Filed: August 28, 2008
    Publication date: April 28, 2011
    Applicant: ALCAN TECHNOLOGY & MANAGEMENT LTD.
    Inventors: Markus Dippel, Wolfgang Lohwasser, Manfred Hoffmann, André Wisard
  • Patent number: 7927678
    Abstract: There is provided a multilayer bottle including an outermost layer and an innermost layer which are each made of a thermoplastic polyester resin, and at least one barrier layer interposed between the outermost layer and the innermost layer. The barrier layer contains at least two components including a polyamide obtained by polycondensing a diamine component containing m-xylylenediamine as a main component with a dicarboxylic acid component containing an ?,?-linear aliphatic dicarboxylic acid as a main component, and a thermoplastic resin having a lower molecular weight than that of the polyamide. The multilayer bottle hardly suffers from delamination upon impact or dropping and, therefore, is not required to have a shape with less irregularities or less bends for preventing the delamination, and further has a large freedom of design choice.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: April 19, 2011
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Jun Mitadera, Tomomichi Kanda, Kazunobu Maruo, Masashi Kurokawa
  • Patent number: 7919738
    Abstract: A multi-layer freezable/microwaveable film having both low temperature resistance and high temperature resistant to withstand subzero freezer storage temperatures and microwave cooking temperatures. The freezable/microwaveable film includes a three-layer coextruded film having a polypropylene/alpha-olefin copolymer inner, heat sealable layer, an adjacent polypropylene or high density polyethylene core layer, and an outer polyethylene skin layer adjacent the core layer opposite the heat sealable layer, and further includes an outer protective layer laminated to the outer skin layer.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 5, 2011
    Assignee: Pliant, LLC
    Inventors: Jau-Ming Su, Paul Georgelos
  • Patent number: 7910185
    Abstract: 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: Grant
    Filed: October 20, 2006
    Date of Patent: March 22, 2011
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Yoichi Ishizaki, Nobuo Hirakawa
  • Publication number: 20110059278
    Abstract: Rotomoulded articles and methods of forming the same are described herein. The rotomoulded articles generally have a permeability of less than 1 g/day. The rotomoulded articles generally include polyethylene obtained by injecting into a reactor a catalyst system including a metallocene catalyst component of specific formula and an activating agent; injecting into the reactor ethylene monomer at a concentration of at least 6.5 wt %; injecting an amount of hydrogen such that a ratio of hydrogen to ethylene (H2/C2) in the feed is less than 85 g/106 g; maintaining the reactor under polymerisation conditions at a temperature of less than 90° C.; and retrieving polyethylene exhibiting a melt index (MI2) of at least 3.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 10, 2011
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventor: ERIC MAZIERS
  • Publication number: 20110045218
    Abstract: Harmful chemicals and/or organisms are neutralized or reduced in concentration by reaction with a protective chemical applied thinly as a coating on a surface facing the internal volume of an enclosure that can contain a product to be protected. The surface can be the inward surface of an enclosure or an included sheet or other item within the enclosure, optionally adhered to the enclosure or to the product. Exemplary protective chemicals include particulate copper and silver, especially as metal flakes, sized to correspond to the pigments in an ink. The protection is normally sufficient with about 10% of the particle surface area exposed, or in an enclosure that is incomplete or foraminous, a higher concentration can be employed or the protection can be shorter lived.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 24, 2011
    Inventors: Nancy L. Harper, Keith W. Donaldson
  • Patent number: 7892615
    Abstract: The present invention provides a coating material composition with a gas-barrier property which comprises, as essential components, an ethylene-vinyl alcohol copolymer (A) obtained by saponifying an ethylene-vinyl acetate copolymer, an inorganic layered compound (B) and a solvent, wherein the total amount of (A) and (B) is 1 to 30% by mass and the mass ratio (A)/(B) is (30/70) to (50/50). The coating material provides gas-barrier properties to packaging materials.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: February 22, 2011
    Assignee: Sakata Inx Corp.
    Inventors: Yutaka Matsuoka, Yoshiaki Ueno, Masanori Kano
  • Patent number: 7887903
    Abstract: 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: Grant
    Filed: April 19, 2005
    Date of Patent: February 15, 2011
    Assignee: Kureha Corporation
    Inventors: Tsutomu Uehara, Takeo Omori, Tadayoshi Itoh
  • Patent number: 7887894
    Abstract: A packaging bag and a drying agent with a moisture absorption indicator function are provided without using a heavy metal harmful to the human body. The packaging bag includes a first packaging material (10) and a second packaging material (20). The first packaging material (10) is provided on an outermost side thereof with a transparent barrier film (12) having a barrier property against water vapor. The second packaging material (20) has a light-reflective or light-absorbing film (24) and a pattern printed layer (23) overlaid on a bag interior side thereof, the pattern printed layer (23) having a printed moisture-absorbing indicator pattern (30). A desiccant-containing resin film (11, 21) which becomes transparent due to moisture absorption is overlaid on a bag interior side of at least one of the first packaging material (10) and the second packaging material (20).
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 15, 2011
    Assignee: Kyodo Printing Co., Ltd.
    Inventors: Eisuke Chiba, Tatsuya Ogawa, Hiroshi Koyama, Shinichi Koizumi
  • Patent number: 7879417
    Abstract: A cushion comprised of at least one chamber comprised of a barrier material, said barrier material comprised of an elastomer, said elastomer being at least semi-permeable to at least a first reactant compound, a second reactant compound disposed within said at least one chamber, wherein said first reactant compound and said second reactant compound react to form a resultant compound, and wherein a rate of diffusion of said resultant compound through said barrier material is less than a rate of diffusion of said first reactant compound through said barrier material. An article of footwear including a cushion, said cushion comprised of at least one chamber comprised of a barrier material, at least a first and a second solid or liquid reactant compounds disposed within said at least one chamber, wherein said first reactant compound and said second reactant compound react to form a resultant gaseous compound.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 1, 2011
    Inventor: Marion Franklin Rudy
  • Patent number: 7875330
    Abstract: A synthetic resin multilayer structure (1) delimited by a top face (2), borders (3, 5) and a bottom face (4) of surface area substantially identical to that of the top face (2), said structure (1) comprising: a first layer (6) defining said faces (2, 4) and said borders (3, 5), a second layer (7), disposed between said faces (2, 4) and said borders (3, 5), of surface area at least equal to that of said faces (2, 4), characterized in that the second layer (7) forms at least one zigzag-shaped double fold (8, 9).
    Type: Grant
    Filed: February 26, 2005
    Date of Patent: January 25, 2011
    Assignee: Aisapack Holding S.A
    Inventor: Jacques Thomasset
  • Patent number: 7858162
    Abstract: Food cans coated at least in part on the interior with a composition comprising an acrylic polymer and a crosslinker are disclosed. The composition is substantially epoxy-free and substantially polyester-free. The acrylic polymer has a weight average molecular weight of greater than or equal to 41,000 and an acid value of <30 mg KOH/g. Food cans coated at lease in part on the interior with a composition having a tensile strength of greater than 11 MPa are also disclosed.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: December 28, 2010
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mary Ann M. Fuhry, John M. Dudik, Ronald R. Ambrose, Kenneth W. Niederst
  • Patent number: 7851036
    Abstract: A shoe is fabricated from an upper structure and a sole structure wherein the sole structure contains a gas-filled cushioning device composed of a multi-layer film formed into a gas-filled membrane having an interior compartment enclosing at least one capture gas. The multi-layer film comprises an outer layer of an elastomeric thermoplastic material such as a polyurethane, an inner layer of an elastomeric thermoplastic material such as a polyurethane and a barrier layer interposed therebetween which is derived from a combination of at least one ethylene-vinyl alcohol copolymer and up to about 50 wt. % of an aliphatic thermoplastic urethane.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: December 14, 2010
    Assignee: BASF Coatings GmbH
    Inventors: Henry W Bonk, David Goldwasser
  • Patent number: 7842361
    Abstract: 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: Grant
    Filed: October 10, 2008
    Date of Patent: November 30, 2010
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Yoshihiro Ohta, Yoichi Ishizaki
  • Publication number: 20100294411
    Abstract: A puncture-resistant multilayer laminate that is impermeable to inflation gases, comprising: a gastight first elastomer layer comprising a polystirene/polyisobutylene block copolymer thermoplastic elastomer, and optionally an extender oil with a content within a range of 0 to less than 100 phr; and a self-sealing second elastomer layer comprising a thermoplastic stirene elastomer, identical to or different from the first elastomer, and an extender oil with a content greater than 200 phr.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 25, 2010
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Emmanuel Custodero, Pierre Lesage, José Merino Lopez
  • Patent number: 7833595
    Abstract: A transparent article includes a continuous polyester matrix having at least one incompatible filler dispersed therein. The incompatible filler provides domains in the polyester matrix, each domain having a particular dimension, thus providing a range of dimensions for the domains in the article. To create haze, the dimensions are within the range of from about 380 nm to about 720 nm. Once the range of dimensions is determined, a light absorbent composition can be found which absorbs light at a range of wavelengths that at least substantially covers the range of dimensions of the domains. In doing so, it has been found that the haze of the article can be substantially masked. Method for producing the article and for masking the haze are also provided.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: November 16, 2010
    Assignee: M&G USA Corporation
    Inventors: Edwin A. Sisson, Simone Ferrero, Arianna Giovannini
  • Publication number: 20100272936
    Abstract: 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: Application
    Filed: November 21, 2008
    Publication date: October 28, 2010
    Applicant: DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Michael D. White, Carlos E. Ruiz, Claudia Hernandez, Steven R. Jenkins
  • Patent number: 7820261
    Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 26, 2010
    Assignee: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Mizuho Maeda
  • Publication number: 20100266797
    Abstract: A process for producing polyolefin articles comprising an ethylene-vinyl alcohol copolymer, wherein the polyolefin component is melted and mixed with the ethylene-vinyl alcohol copolymer in the presence of a stabilizing composition comprising: a) one or more acid scavengers in amounts equal to or higher than 300 ppm by weight with respect to the weight of the polyolefin component; and b) one or more phenolic antioxidants in amounts equal to or higher than 1100 ppm by weight with respect to the weight of the polyolefin component.
    Type: Application
    Filed: November 7, 2006
    Publication date: October 21, 2010
    Applicant: Basell Poliolefine Italia s.r.l.
    Inventors: Fiorella Pradella, Piet Roose
  • Publication number: 20100263778
    Abstract: Inflatable article equipped with a layer impermeable to the inflation gases, of improved hysteresis and impermeability. The layer comprises an elastomer composition comprising at least, as the sole elastomer or as the predominant elastomer by weight, a thermoplastic stirene elastomer (“TPS”) and a platy filler having a volume content greater than 5%. According to one preferred embodiment, the TPS elastomer is a copolymer with polystirene and polyisobutylene blocks such as SIBS (stirene/isobutylene/stirene) and the composition also comprises an extender oil for the elastomer, in particular a PIB (polyisobutylene) oil. The platy filler is especially chosen from graphites and phyllosilicates such as micas, clays or talcs. The inflatable article can be an inner tube or a pneumatic tire for a motor vehicle.
    Type: Application
    Filed: July 4, 2008
    Publication date: October 21, 2010
    Applicants: Societe De Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Pierre Lesage, Emmanuel Custodero
  • Publication number: 20100266796
    Abstract: The pneumatic structural element according to the invention comprises from one to a number of interconnected elements of the following construction: two hollow bodies (1) made of textile material preferably coated in a gas-type manner and each having two end caps (5) are assembled such that they produce a common sectional area (2). The edging of this sectional area (2) is formed by two curved tension/compression elements (3) into which is clamped a preferably gas-tight web (4) made of a flexible material of high tensile strength. This web (4) can be connected to the tension/compression elements (3) in a gas-tight manner. By filling the two hollow bodies (1) with compressed gas, a tensile stress ? is built up in their casings (9) and is transmitted directly or via the tension/compression elements (3) to the web (4) and pretensions said web. This pretensioning greatly increases the bending rigidity of the tension/compression elements (3).
    Type: Application
    Filed: December 22, 2006
    Publication date: October 21, 2010
    Inventor: Mauro Pedretti
  • Patent number: 7811669
    Abstract: There are provided a gas barrier laminated film, which is transparent while possessing excellent gas barrier properties and, at the same time, has excellent impact resistance, and a process for producing the same. The gas barrier laminated film comprises a base material, a vapor deposited film of an inorganic oxide provided on the base material, and a gas barrier coating film provided on the vapor deposited film. The gas barrier laminated film is characterized in that the base material on its side where the vapor deposited film is provided, has been subjected to pretreatment or primer coating treatment, and the gas barrier coating film has been formed by coating a gas barrier coating liquid onto the inorganic oxide film and then heating the coating.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: October 12, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hitoshi Fujii, Norio Akita, Ayumi Shibata, Daidou Chiba, Koichi Mikami, Hisashi Sakamoto
  • Patent number: 7811646
    Abstract: Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 12, 2010
    Assignee: Kuraray Co., Ltd.
    Inventors: Kaoru Ikeda, Shinji Tai, Kouta Isoyama, Tomoyuki Watanabe
  • Patent number: 7812293
    Abstract: Multilayer freezable/microwaveable films and packages having both low temperature resistance to withstand subzero freezer storage temperatures and high temperature resistance to withstand microwave cooking temperatures. The freezable/microwaveable films and packages include, for example, a film having at least three coextruded layers comprising an inner heat sealable layer, at least one core layer adjacent to the heat sealable layer, and an outer skin layer adjacent the core layer opposite the heat sealable layer. Preferably, the films and packages further include an outer protective layer laminated to the outer skin layer. The freezable/microwaveable packages can include a venting system, such as vent slits or a vent valve in the package, or vents in at least one seal of the package, to facilitate microwave heating or cooking of the package contents.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 12, 2010
    Assignee: Pliant Corporation
    Inventors: Jau-Ming Su, Paul Z. Wolak
  • Patent number: 7807241
    Abstract: A hydrogenated copolymer-containing laminate comprising a substrate layer, an adhesive layer, and a hydrogenated copolymer composition layer which is laminated on and bonded to the substrate layer through the adhesive layer, the hydrogenated copolymer composition layer comprising a hydrogenated copolymer (I), and a rubbery polymer (II), wherein the hydrogenated copolymer (I) is obtained by hydrogenating a conjugated diene/vinyl aromatic compound copolymer, the hydrogenated copolymer (I) having the following characteristics (1) to (4): (1) a vinyl aromatic monomer unit content of from more than 50% by weight to 90% by weight, (2) a content of a vinyl aromatic polymer block of not more than 40% by weight, (3) a weight average molecular weight of from 50,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in conjugated diene monomer units.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 5, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masahiro Sasagawa, Katsumi Suzuki, Toshinori Shiraki, Jae Yeon Lee, Jun Choi Pil, Suk Hun Sur, Dae Shik Kim
  • Patent number: 7807270
    Abstract: The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester material, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a vinyl alcohol material. The blend optionally may further comprise (iii) a polyolefin material (preferably a functionalized polyolefin material, e.g., a BYNEL material); and/or (iv) a polyamide material (preferably an amorphous polyamide material, e.g., a GRIVORY material), that optionally further comprises an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a core layer comprising the aforementioned blend, and inner and outer layers of a formable polymer composition. The present invention also provides methods of making such containers.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: October 5, 2010
    Assignee: Valspar Sourcing, Inc.
    Inventors: Paul E. Share, Keith R. Pillage
  • Patent number: 7803438
    Abstract: An article comprising at least one cured, liquid-impervious polymeric shell substantially free from defects, at least one liner, and a non-tacky, thermoplastic adhesive layer between the shell and the liner, wherein the adhesive layer is melted and solidified to create a non-tacky bond between the shell and the liner, which can be moisture-absorbing or cut-resistant, whereby the liner supports and limits stretch ability of the shell, thereby preventing adhesive delamination between the adhesive layer and either of the shell and/or the liner; a method for the manufacture of an article comprising a supported, polymeric shell, such as a glove, a gauntlet, an apron, or a boot, comprising providing a cured, liquid-impervious, polymeric shell, providing a knitted/woven liner, incorporating a non-tacky, thermoplastic adhesive layer between the shell and the liner, such as by hot-melt spraying, dry-powder spraying or fiber-coating, creating intimate contact between the shell, the adhesive layer, and the liner, subjec
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: September 28, 2010
    Assignee: Ansell Healthcare Products LLC
    Inventors: Michael Flather, Paul Saunders, Dave Narasimhan
  • Patent number: 7799395
    Abstract: The present invention provides a clay film with excellent flexibility, whose main component is natural clay or synthetic clay, and in which there is uniform orientation in the clay particle layer, and relates to a novel clay film that has enough mechanical strength to be used as a self-supporting film, and has a structure in which layers of clay particles are highly oriented, and in which the main constituent component of the clay film is mica, vermiculite, montmorillonite, iron montmorillonite, beidellite, saponite, hectorite, stevensite, or nontronite, and which has excellent flexibility, undergoes no structural change at high temperatures of 250° C. and up to 600° C., contains no pinholes, and has a gas permeation coefficient of less than 3.2×10?11 cm2s?1cmHg?1 at room temperature for helium, hydrogen, oxygen, nitrogen, or air.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: September 21, 2010
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Takeo Ebina, Fujio Mizukami
  • Patent number: 7799399
    Abstract: A process for fabricating a high barrier lamination suitable for the construction of lighter than air materials including providing a thin, two layer thermoplastic film consisting of an amorphous copolyester skin and a high crystalline polyester core; plasma treating the high crystalline polyester core layer to a surface energy of about 50 to about 68 dyne; depositing a metal barrier layer to an optical density of about 2.2 to about 3.2; and extrusion coating a linear low density polyethylene sealant layer on the amorphous copolyester skin layer.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 21, 2010
    Assignee: Toray Plastics (America), Inc.
    Inventors: Steven Sargeant, Gianfranco Chicarella, John Medeiros, Joseph Anthony Bourgeault, Todd Richard Sarnstrom, Paul Andrew Ansolabehere, Todd Fayne
  • Publication number: 20100233401
    Abstract: There is provided a multilayer bottle including outermost and innermost layers each made mainly of a polyester (A) and at least one barrier layer interposed between the outermost and innermost layers. The polyester (A) is a thermoplastic resin obtained by polymerizing a dicarboxylic acid component containing 80 mol % or more of terephthalic acid with a diol component containing 80 mol % or more of ethylene glycol. The barrier layer is composed of a polyamide (B) and a polyamide (C). The polyamide (B) is obtained by polycondensing a diamine component containing 70 mol % or more of m-xylylenediamine with a dicarboxylic acid component containing 70 mol % or more of an ?,?-linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms. The polyamide (C) has a higher saturation water content than that of the polyamide (B) as measured at 23° C. and 50% RH under 1 atm, and a content of the polyamide (C) in the barrier layer is 20% by weight or less on the basis of a weight of the barrier layer.
    Type: Application
    Filed: January 15, 2007
    Publication date: September 16, 2010
    Inventors: Jun Mitadera, Katsuya Maruyama, Kazunobu Maruo, Tomonori Kato
  • Publication number: 20100227093
    Abstract: A pipe-lining material comprises a tubular resin absorbent material impregnated with a photo-curing resin or a thermosetting resin mixed therewith. A tubular shading film is thermally fused and bonded to the external peripheral surface of the tubular resin absorbent material. In such a structure, the entire external peripheral surface of the tubular resin absorbent material is covered with the shading film, preventing the photo-curing resin impregnated in the tubular resin absorbent material from being accidentally exposed to and cured with external light, and the shading film from deviating in position relative to the tubular resin absorbent material. The shading film can easily be obtained by adding a color pigment to a polyethylene film or other highly airtight plastic film when this plastic film is being produced. Therefore, the conventionally used coating step involving the use of a plastic film can be directly used to produce a pipe-lining material having high shading characteristics.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Inventors: Takao Kamiyama, Koji Kaneta, Kenji Fujii
  • Patent number: 7790786
    Abstract: An optical pickup lens holder which comprises a wholly aromatic liquid crystalline polyester resin composition comprising 97 to 45 mass percent of a wholly aromatic liquid crystalline polyester having a melting point of 320° C. or higher, 3 to 50 mass percent of an inorganic spherical hollow material having an aspect ratio of 2 or less and 0 to 30 mass percent of an inorganic filler having as aspect ratio of 4 or more, wherein the percentages are made to 100 mass percent in total, and having a specific gravity in the range of 1.00 to 1.35. The lens holder exhibits excellent characteristics, while retaining good heat resistance in soldering and good processability inherent in a liquid crystalline polyester, exhibits high injection processability and high adaptability to a soldering process even in a sheet form lens holder having a thin part and an opening port.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: September 7, 2010
    Assignee: Nippon Oil Corporation
    Inventors: Satoshi Murouchi, Toshio Nakayama, Yoshikuni Yamada
  • Patent number: 7781034
    Abstract: A composite multi-layer barrier is produced by first vapor depositing a barrier under vacuum over a substrate and then depositing an additional barrier at atmospheric pressure in a preferably thermoplastic layer. The resulting multi-layer barrier is used to coat an article in a lamination process wherein the thermoplastic layer is fused onto itself and the surface of the article. The vacuum-deposited barrier may include of a first leveling polymer layer followed by an inorganic barrier material sputtered over the leveling layer and of an additional polymeric layer flash evaporated, deposited, and cured under vacuum. The thermoplastic polymeric layer is then deposited by extrusion, drawdown or roll coating at atmospheric pressure. The resulting multi-layer barrier may be stacked using the thermoplastic layer as bonding agent. Nano-particles may be included in the thermoplastic layer to improve barrier properties. A desiccant material may also be included or added as a separate layer.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: August 24, 2010
    Assignee: Sigma Laboratories of Arizona, LLC
    Inventors: Angelo Yializis, Michael G. Mikhael
  • Publication number: 20100209638
    Abstract: This invention provides a water-soluble sealing packaging material having excellent halogen resistance which can seal a medicament to be dispersed or dissolved in water which does not contain a substance potentially harmful to human health, can be used safely, does not deteriorate and maintains solubility in water even if a medicament, especially a medicament comprising chlorine-containing compound or bromine-containing compound, is sealed by the packaging material and stored for a long period of time. The water-soluble sealing packaging material comprises a packaging raw material that comprises 100 parts by weight of a polyvinyl alcohol resin and 0.1 to 100 parts by weight of at least one of inorganic compound selected from the group consisting of a carbonate, an oxide and a hydroxide which have a metal selected from IIa group metals and IIb metals, and a hydrotalcite compound.
    Type: Application
    Filed: October 16, 2008
    Publication date: August 19, 2010
    Applicant: AICELLO CHEMICAL CO., LTD.
    Inventors: Keisuke Ando, Yasumasa Goto, Katsuhito Ito
  • Publication number: 20100203274
    Abstract: A composition having good gas barrier properties can be prepared from a metal silicate, clay and a polymer emulsion, provided that the proportions of these components are maintained such that the silicate comprises at least 70% by weight of the solids in the composition, and the clay and polymer each comprise at least 1% by weight of the total solids in the composition.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 12, 2010
    Applicant: Sun Chemical, B.V.
    Inventors: Derek Ronald Illsley, Michael William Leonard, Vikas Mittal
  • Patent number: 7771805
    Abstract: The invention relates to a novel composition comprising at least one polyphthalamide reactively extruded with at least one other polyamide, a polyester, and a modifier. The composition can be further modified with fillers to add increased strength. Other additives such as colorants, flame retardants, and UV degradation inhibitors are also contemplated. This composition exhibits superior barrier to organic vapors, impact strength and heat distortion temperatures. Also disclosed are articles using this novel composition such as fuel tanks for gasoline engines used to power lawn mowers and garden machinery.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: August 10, 2010
    Assignee: Ovation Polymer Technology and Engineered Materials, Inc.
    Inventors: Nishant Satish Negandhi, Jin Zhu
  • Publication number: 20100193461
    Abstract: The invention relates to a method that uses a low-pressure plasma to deposit a barrier coating on a substrate, of the type in which the plasma is obtained by partial ionisation, under the influence of an electromagnetic field, of a reaction fluid injected at low pressure into a treatment zone. The method includes: at least a step in which a first layer, obtained in the plasma state bearing a mixture containing at least one organosilicon compound and one other compound, is deposited on the substrate; a step in which a second layer, essentially consisting of silicon oxide having formula SiOx, is deposited on the first layer; and at least a step in which a third layer, obtained in the plasma state bearing a mixture containing at least one organosilicon compound and one other compound, is deposited on the second layer, said aforementioned other compounds both taking the form of nitrogen compounds, such as nitrogen gas.
    Type: Application
    Filed: July 3, 2008
    Publication date: August 5, 2010
    Applicant: SIDEL PARTICIPATIONS
    Inventors: Naima Boutroy, Nasser Beldi
  • Publication number: 20100189942
    Abstract: A blister packaging multilayer resin film is used to produce a blister package in which an item is sealed between a support substrate and the multilayer resin film, wherein the multilayer resin film includes an oxygen barrier layer that is arranged on a side of the multilayer resin film which side faces the support substrate, and a moisture proof layer that is arranged on a side of the oxygen barrier layer which side does not face the support substrate.
    Type: Application
    Filed: June 13, 2008
    Publication date: July 29, 2010
    Applicants: SHIONOGI & CO., LTD., TAISEI KAKO CO., LTD.
    Inventors: Takumi Tamura, Shinji Hiramoto, Keiji Hamamoto, Takuya Tsuji
  • Publication number: 20100175804
    Abstract: Inflatable article equipped with an elastomer layer impermeable to the inflation gases, said elastomer layer comprising at least, as the predominant elastomer, a thermoplastic stirene/isobutylene/stirene (SIBS) elastomer. Preferably the SIBS elastomer comprises between 5% and 50% by weight of stirene, its number-average molecular weight is between 30 000 and 500 000 g/mol, and its Tg is below ?20° C. Preferably the airtight elastomer layer also comprises, as a plasticizing agent, an extender oil for the SIBS elastomer with a content preferably between 5 and 100 phr. The inflatable article is, in particular, an inner tube or a pneumatic tire for a motor vehicle.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 15, 2010
    Inventors: Pierre Lesage, Emmanuel Custodero
  • Patent number: 7754300
    Abstract: Articles comprise a monolayer blown film prepared from a composition comprising at least one vinylidene chloride polymer and at least one plasticizer wherein at least one vinylidene chloride polymer comprises vinylidene chloride and at least one alkyl acrylate, selected from methyl acrylate, ethyl acrylate, or butyl acrylate or a combination thereof in an amount of from 2.5 to 9 mole percent of the monomer content of the vinylidene chloride polymer and wherein the plasticizer is present in an amount of from 1 to 15 parts by weight per hundred parts of polymer, wherein the article is selected from a package, a container, a laminate, sausage casing or combination thereof, particularly a sausage casing, wherein at least 4 of designated characteristics are present. The invention also includes processes for making articles of the invention and films used therein.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: July 13, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Douglas E. Beyer, Steven R. Jenkins, Eric K. C. Lee