Next To Second Layer Of Polyamide Patents (Class 428/474.7)
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Publication number: 20090117399Abstract: The invention relates to multi-layer polymer nanocomposite packaging films having barrier properties. A co-extruded multi-layer packaging film includes a plurality of thermoplastic polymer layers, at least one polyamide layer and an adhesive blended into at least one of the thermoplastic polymer and polyamide layers.Type: ApplicationFiled: November 1, 2007Publication date: May 7, 2009Applicant: Next Generation Films, INC.Inventor: David A. Frecka
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Publication number: 20090081394Abstract: A packaging film for use as at least a part of a package for food or beverage products is disclosed. The packaging film includes one or more than one layer. The one layer of the single layer film or a layer of the multilayer film that in use contacts a packaged product is formed from a packaging material in the form of a polymeric material that is a non-scalping polymer that does not absorb or absorbs only minimal amounts of flavour components of the packaged product.Type: ApplicationFiled: April 3, 2006Publication date: March 26, 2009Inventors: David Carew, Simon P. Hemmilton
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Publication number: 20090080812Abstract: High temperature bags for use in high temperature processes. Suitable high temperature processes include cooking food products, such as whole muscle meats, and sterilization of medical instruments. The high temperature bags may be comprised of multilayer films comprising materials that can withstand high temperatures and also have other beneficial properties such as, for example, the ability to be readily heat sealed, durability, no adhesion to food products, and good/improved moisture and gas barrier properties. These high temperature bags can preferably withstand temperatures greater than the boiling point of water, i.e., 212° F., more preferably greater than 300° F. and more even more preferably greater than 350° F. Furthermore, the high temperature bags may be used to freeze and ship products and may be placed directly into a high temperature environment, such as an oven or microwave, in order to cook or sterilize a product contained within the bag.Type: ApplicationFiled: September 18, 2008Publication date: March 26, 2009Applicant: M&Q PACKAGING CORPORATIONInventors: Michael D. SCHMAL, Ernest E. BACHERT
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Patent number: 7504158Abstract: A dual ovenable film having a first layer comprising one or more polyamides and a second layer comprising one or more polyamides. The first layer forms the first outer surface of the film. The second layer has a melting point of at least about 210° C. The film is capable of forming a water-containing package by providing two 4 inch by 6 inch sheets of the film each having four perimeter sides, placing the sheets in superimposed, coextensive arrangement having the first layers of the films in contact with each other, and heat sealing three perimeter sides of the sheets together using a ?-inch wide sealing bar at a temperature of 290° F., a dwell time of 0.5 seconds, and a sealing pressure of 40 psig to form an open pouch having heat seals along three of the four perimeter sides. The open pouch can be filled with 100 milliliters of distilled water at a temperature of 73° F.Type: GrantFiled: November 14, 2005Date of Patent: March 17, 2009Assignee: Cryovac, Inc.Inventors: Arthur Leroy Berrier, Cynthia Louise Ebner
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Publication number: 20080261061Abstract: This invention relates to a laminated film for packaging food comprising a heat-resistant substrate layer, an elusion barrier layer and a sealant substrate layer arranged in this order, wherein said substrate of the heat-resistant substrate layer is polyester or polyamide, said elusion barrier layer does not pass decomposition products of polyester or polyamide produced during retort sterilization, and said elusion barrier layer is bonded to said sealant substrate layer through an adhesive resin layer by thermal lamination, and its manufacture.Type: ApplicationFiled: April 18, 2007Publication date: October 23, 2008Inventors: Hitoshi Sasaki, Seiichi Okude
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Publication number: 20080261010Abstract: A film whose outer layer is composed of a molding composition which is in essence composed of the following components: a) from 3 to 50% by weight of a polyamide, selected from the group of PA11 and PA12, and b) from 50 to 97% by weight of a polyamide, selected from the group of PA1012 and PA1212, where the percentages are based on the entirety of components a) and b), is suitable for decoration of moldings which retain their gloss during their service time.Type: ApplicationFiled: January 4, 2006Publication date: October 23, 2008Applicant: DEGUSSA GmbHInventors: Roland Wursche, Sonja Bollmann, Harald Hager, Martin Wielputz, Kirsten Alting, Michael Beyer, Franz-Erich Baumann
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Publication number: 20080248268Abstract: The invention relates to a biaxially drawn multilayer tubular film consisting of at least five layers, in which the external and two other layers contain aliphatic (co)-polyamide in a quantity equal to or greater than 50% by weight and are differently assembled. The inventive tubular film is produced by coextrusion and, thereby is seamless. Said tubular film can be used in the form of flood product packagings, in particular as synthetic sausage casing.Type: ApplicationFiled: September 6, 2006Publication date: October 9, 2008Inventors: Ulrich Delius, Bernhard Feron
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Publication number: 20080241562Abstract: Films made from impact-modified polyamide.Type: ApplicationFiled: August 17, 2004Publication date: October 2, 2008Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.Inventors: Corinne Bushelman, Gregory Warkoski, James K. Doty, Bruce H. Bersted
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Patent number: 7427430Abstract: High gas barrier, delamination-resistant polyamide compositions suitable for extended shelf-life packaging applications are provided. Also provided are polyamide compositions exhibiting high oxygen scavenging capability. The polyamide compositions comprise mXDA-IPA containing copolymers which provide excellent properties to the complete polyamide compositions. Also provided are direct blends of the polyamide compositions with other polymers. The polyamide products are particularly suited for producing barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and molded bottles. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical, and health care product packaging applications.Type: GrantFiled: December 29, 2005Date of Patent: September 23, 2008Assignee: Honeywell International Inc.Inventors: Sangkeun Rhee, Edward P. Socci, Clark V. Brown, John V. Facinelli
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Patent number: 7422782Abstract: The present invention describes a multilayer film suitable for use in packaging applications comprising at least a polymeric first layer having a first surface and an opposing second surface wherein the polymeric first layer comprises a heat-sealable, water-insoluble polyester; a polymeric second layer having a first surface and an opposing second surface and comprising a pressure-sensitive adhesive, wherein the second surface of the polymeric second layer is in contact with the first surface of the polymeric first layer and forms a peelable/resealable bond therebetween; and a third layer in contact with the first surface of the polymeric second layer.Type: GrantFiled: February 1, 2005Date of Patent: September 9, 2008Assignee: Curwood, Inc.Inventors: Edward L. Haedt, Paul J. Sheridan, Joseph J. Michels, Lynn M. Nett
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Publication number: 20080213552Abstract: A multilayer film which comprises the following layers: I. an upper layer composed of a polyamide molding composition which is transparent at the selected layer thickness, and II. a lower layer composed of a polyamide molding composition which comprises the following components: a) from 70 to 99% by weight of a polyamide selected from ?) polyamides that can be prepared from lactam monomers or from the corresponding ?-aminocarboxylic acids having 6, 7, 8, 9, 10, 11, or 12 carbon atoms, ?) polyamides based on diamine and dicarboxylic acids, in each case having from 6 to 18 carbon atoms, ?) polyamide elastomers that can be prepared from oligomeric, difunctional units based on one of the polyamides mentioned under ?) and ?), and on a difunctional oligoalkylene glycol, ?) copolyamides that can be prepared from the following components: from 50 to 99.Type: ApplicationFiled: January 4, 2006Publication date: September 4, 2008Applicant: DEGUSSA GmbHInventors: Harald Hager, Michael Beyer, Franz-Erich Baumann
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Patent number: 7384690Abstract: In order to provide a film having excellent heat resistance, thermal dimensional stability, and mechanical properties, in particular, a film capable of satisfying required properties, e.g., higher strength in accordance with the reduction in thickness of a base film, improved thermal dimensional stability and mechanical properties in a use environment, and higher heat resistance and improved thermal dimensional stability in accordance with the needs for miniaturization and more functionality in electrical and electronic areas, a thermoplastic resin is allowed to contain transition metal oxide particles, and is formed into a biaxially oriented thermoplastic resin film, wherein the melting point of the film is allowed to become higher than the melting point of the thermoplastic resin to be used.Type: GrantFiled: January 8, 2003Date of Patent: June 10, 2008Assignee: Toray Industries, Inc.Inventors: Tetsuya Machida, Shigetoshi Maekawa, Takuji Higashioji, Tetsuya Tsunekawa
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Publication number: 20080085420Abstract: In a resin joined body including at least one member made of a resin material that forms a first resin layer and a second resin layer, the at least one of the first and second resin layers having the rear side from which the laser beam has been irradiated has an absorption constant of 50 to 5000 m?1 for the wavelength of the laser beam, and the fuse bonded portion is formed to have a relationship of X>Y, wherein a light transmittance of light passing from the first resin layer to the second resin layer via the fused portion is designated as X(%), and a light transmittance of light passing continuously from the first resin layer to the second resin layer via a portion other than the fused portion is designated as Y(%).Type: ApplicationFiled: August 6, 2007Publication date: April 10, 2008Applicant: NITTO DENKO CORPORATIONInventors: Naoyuki MATSUO, Atsushi HINO, Masayuki KANETO
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Patent number: 7318960Abstract: A polarizing molded article, which includes a polarizing plate-containing laminated structure. The laminated structure includes a polarizing sheet layer that is held between two protective sheet layers. One of the two protective sheet layers is connected to a polyurethane sheet layer or a polyamide sheet layer with an adhesive or a pressure-sensitive adhesive. A thermally molded resin layer is thermally adhered to the polyurethane sheet layer or the polyamide sheet layer.Type: GrantFiled: December 20, 2001Date of Patent: January 15, 2008Assignee: Yamamoto Kogaku Co., LtdInventors: Tamenobu Yamamoto, Ryoji Kammori, Nobuyuki Kobuchi, Koichiro Oka
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Patent number: 7303817Abstract: A dental filling material comprising an inner core and outer layer of material disposed and surrounding the inner core, both the inner core and outer layer of material each containing a thermoplastic polymer. The thermoplastic polymer may be biodegradable. A bioactive substance may also be included in the filling material. The thermoplastic polymer acts as a matrix for the bioactive substance. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.Type: GrantFiled: August 6, 2004Date of Patent: December 4, 2007Inventor: Weitao Jia
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Patent number: 7264867Abstract: The invention relates to a receiver sheet for electrophotography comprising a base material having thereon at least one toner receiver layer comprising a mixture of polyolefin and at least one member selected from the group consisting of polyolefin copolymers, amide containing polymers, and ester containing polymers, wherein a measured Tg of said at least one receiver layer comprises a Tg of less than 5° C.Type: GrantFiled: November 30, 2004Date of Patent: September 4, 2007Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Terry A. Heath, Michael R. Brickey, Mridula Nair
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Patent number: 7261935Abstract: The present invention provides a multi-layer polymer composition having a polar outer layer and a non-polar second outer layer. The polar outer layer is preferably PVC and the non-polar outer layer, polypropylene. The adhesive tie layer is a unique blend of a copolyester elastomer, a non-polar polymer, and a copolymer that contains functional groups capable of reaction with the functional end groups of the copolyester elastomer and that is totally or partially miscible with the non-polar polymer in the second outer layer. The multi-layer polymer can be advantageously coextruded. The non-polar outer layer can comprise the bulk of a fabricated part, with only a thin layer of polar polymer, providing desired attributes of the polar polymer at a lower cost.Type: GrantFiled: October 10, 2003Date of Patent: August 28, 2007Assignee: E. I. du Pont de Nemours and CompanyInventor: George Henry Hofmann
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Patent number: 7232597Abstract: A corrugated polyamide tube composed of a corrugated outer tube layer of polyamide resin and a flat inner tube layer fixed to the outer tube layer at bottom portions thereof, in which the inner tube layer is made essentially of a polyetheramide elastomer.Type: GrantFiled: May 26, 2004Date of Patent: June 19, 2007Assignee: Ube Industries, Ltd.Inventors: Yoshiro Iwata, Hideki Fujimura
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Patent number: 7229684Abstract: Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment which is visually associated with, and satisfies the color deficiency of, the film layer. Most preferably, the pigment is provided as a homogenous dispersion in a transparent color-matching layer positioned adjacent to the film layer. Thus, when the film and color-matching layers are viewed collectively as a unit, the perceived color tone will be that of the finished predetermined color tone. That is, the color-matching layer provides visually an additive effect on the perceived color of the composite film structure.Type: GrantFiled: September 6, 2005Date of Patent: June 12, 2007Assignee: CPFilms, Inc.Inventors: James P. Enniss, Steven A. Barth, Mary E. Lawless, Anthony B. Port, Elizabeth J. Packer
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Patent number: 7192640Abstract: A packaging laminate comprising a paperboard substrate for providing a base layer, a tear-resistant polymer layer applied to said substrate, and a heat seal polymer layer applied to said tear-resistant polymer. This laminate structure is particularly useful for blister pack packaging.Type: GrantFiled: January 31, 2003Date of Patent: March 20, 2007Assignee: International Paper CompanyInventors: Victor P. Holbert, David Reed
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Patent number: 7189347Abstract: A biaxially oriented polyamide laminate film having a layered structure of A/B, A/B/A or A/B/C, layer A having no projections with a height of 0.27 ?m or higher on the surface, or having a density of projections with a height of 0.27 ?m or higher on the surface of 200 projections/mm2, and the film exhibiting a maximum dimensional change of 4% or less during immersion in 95° C. hot water, a maximum dimensional change of 6% or less after withdrawal from the hot water, and a maximum dimensional change of 4% or less after heat treatment in dry hot air at 160° C.; and a process for producing the same. This film reduces the differences in physical properties in the width direction that occurs in a tenter and exhibits excellent adhesive properties, resistance to fatigue from flexing and operability, and can be provided economically.Type: GrantFiled: August 22, 2001Date of Patent: March 13, 2007Assignee: Toyo Boseki Kabushiki KaishaInventors: Shinji Fujita, Yukinobu Mukoyama, Katsuya Ito
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Patent number: 7183006Abstract: A multilayer film has a first layer and a second layer. The first layer comprises an additive, a binder, and a crosslinking agent. The additive is a flavor, fragrance, colorant, antimicrobial agent, antioxidant, chelating agent, and/or odor absorbent. The binder is a polysaccharide and/or a protein. The crosslinking agent comprises a compound with at least two carbonyl groups. The second layer comprises a non-water-soluble thermoplastic polymer comprising at least one member selected from the group consisting of polyolefin, polyamide, polyester, polyvinylidene chloride, polyvinyl chloride, and polystyrene. Each of the additive, binder, and crosslinking agent are present throughout a thickness of the first layer. Preferably, the first layer is coated onto the second layer, which is preferably a non-water-soluble thermoplastic polymer, e.g., polyolefin, polyamide, and/or polyester.Type: GrantFiled: September 5, 2003Date of Patent: February 27, 2007Assignee: Cryovac, Inc.Inventors: Charles R. Bamore, Narender P. Luthra, Walter B. Mueller, Woodrow W. Pressley, Scott W. Beckwith
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Patent number: 7175916Abstract: A composite of a resin member bonded to a vulcanized rubber member is obtained with using a rubber member vulcanized with a radical-generating agent (e.g., an organic peroxide) and a thermoplastic resin having at least 2 atoms, on average, selected from H and S atom per molecule, each atom having not less than 0.006 of an orbital interaction energy coefficient S represented by the following formula (1): S=(CHOMO,n)2/|Ec?EHOMO,n|+(CLUMO,n)2/|Ec?ELUMO,n| ??(1) wherein Ec: an orbital energy (eV) of a radical, CHOMO,n: a molecular-orbital coefficient of a highest occupied molecular orbital (HOMO) of an n-th H or S atom constituting a basic unit of the resin, EHOMO,n: an orbital energy (eV) of the HOMO, CLUMO,n: a molecular-orbital coefficient of a lowest unoccupied molecular orbital (LUMO) of the n-th H or S atom constituting the basic unit of the resin, ELUMO,n: an orbital energy (eV) of the LUMO, and above all represent a value calculated by a semiempirical molecular orbital method MOPACPM3.Type: GrantFiled: January 9, 2002Date of Patent: February 13, 2007Assignee: Daicel-Degussa Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Patent number: 7160604Abstract: The invention relates to laminated high oxygen barrier films for packaging applications and especially for shrinkable lidding applications. The multilayer heat shrinkable plastic film of the present invention comprises a laminate of at least two films 1 and 2, wherein film 1 has a hot glycerine shrinkage of more than 20% at 110° C. for 5 seconds and at least one of MD, TD directions; and film 2 has a hot glycerine shrinkage of less than 20% at 110° C. for 5 seconds in at least one of MD, TD directions.Type: GrantFiled: May 17, 2005Date of Patent: January 9, 2007Assignee: Flexopack S.A.Inventor: Dimitris Ginossatis
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Patent number: 7133209Abstract: A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way that a) the b value, which is a measure of yellowness, is at most 7, and moreover b) between 370 and 430 nm, at least in a lower part of the range, the transmittance is smaller than 1%, measured at a layer thickness of 4 mm, can be processed to give products which are substantially impermeable to UV light.Type: GrantFiled: February 24, 2004Date of Patent: November 7, 2006Assignee: Degussa AGInventors: Roland Wursche, Dagmar Kaufhold, Berthold Teloeken
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Patent number: 7122255Abstract: Multilayered polyamide composite articles comprising at least three layers that comprise aliphatic and semi-aromatic polyamides and that is better able to retain its mechanical properties at high temperatures and over long times are disclosed. Layers comprising aliphatic polyamides may optionally contain oxidation stabilizers. The articles may be in the form of tubes incorporated into a heat exchanger. Processes for their preparation are also provided.Type: GrantFiled: December 9, 2003Date of Patent: October 17, 2006Assignee: E. I. du Pont Canada CompanyInventor: Shailesh Ratilal Doshi
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Patent number: 7087312Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) and at least one overlayer (A) which comprises poly(m-xyleneadipamide) (MXD6) feature improved optical properties such as increased gloss and very good barrier properties, in particular toward passage of oxygen, and are therefore suitable as packaging materials for foods and other consumable items.Type: GrantFiled: January 15, 2004Date of Patent: August 8, 2006Assignee: Mitsubishi Polyester Film GmbHInventors: Matthias Konrad, Herbert Peiffer, Gottfried Hilkert
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Patent number: 7049006Abstract: A multilayer structure based on polyamides, comprising: a first layer (1) formed from a polyamide P1 or from a blend of a polyamide P1 and a polyolefin PO1 having a P1 polyamide matrix, optionally, a layer (2a) formed from EVOH; a layer (2) formed from a blend of PA-6/12 copolyamides, one comprising by weight more 6 than 12 and the other more 12 than 6; a layer (3) formed from a polyamide P3, it being possible for P1 and P3 to be identical or different, the layers (1), (2), (2a) and (3) being successive and adhering to one another in their respective contact regions.Type: GrantFiled: November 2, 2004Date of Patent: May 23, 2006Assignee: ArkemaInventor: Christophe Lacroix
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Patent number: 7014920Abstract: An anti-fogging, stretched, multilayer film comprising a layer having an anti-fogging agent incorporated therein, the film having evaluated values for anti-fogging property of 28 mm2 or more at temperatures of ?5° C. and 15° C., respectively.Type: GrantFiled: April 16, 2001Date of Patent: March 21, 2006Assignee: Gunze LimitedInventor: Hiroki Kuriu
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Patent number: 6989198Abstract: A multi-layer structure excellent in the barrier properties against alcohol gasoline, particularly hydrocarbon components, and also excellent in the interlayer adhesion, low-temperature impact resistance, heat resistance and chemical resistance is provided. The stractive is a multi-layer structure comprising two or more layers including at least a layer (a) comprising (A) nylon 11 and/or nylon 12 and a layer (b) comprising (B) a polyamide resin (nylon 9T) consisting of a dicarboxylic acid component and a-diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-methyl-1,8-octanediamine, and preferably further including a layer (c) comprising (A) nylon 11 and/or nylon 12 or (C) nylon 6.Type: GrantFiled: October 14, 2003Date of Patent: January 24, 2006Assignees: Kuraray Co., Ltd., Ube Industries, Ltd.Inventors: Haruhisa Masuda, Yuji Munesawa, Koichi Warino, Tomoharu Nishioka, Yoshio Iwata, Koji Nakamura, Kozo Tamura, Tetsuya Hara
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Patent number: 6984442Abstract: A multilayer film includes a first layer comprising an amorphous polymer that exhibits a glass transition temperature, and a second layer forming an exterior layer of the multilayer film and comprising a sealant material capable of forming a heat-seal, the sealant material comprising a polymer that exhibits a melting point. The glass transition temperature of the amorphous polymer is greater than the melting point of the sealant material by at least about 45 degrees centigrade.Type: GrantFiled: July 19, 2002Date of Patent: January 10, 2006Assignee: Cryovac, Inc.Inventors: Herve M. Brebion, Frank M. Hofmeister, Ram K. Ramesh, Paul J. Satterwhite
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Patent number: 6979494Abstract: A dual ovenable film having a first layer comprising one or more polyamides and a second layer comprising one or more polyamides. The first layer forms the first outer surface of the film. The second layer has a melting point of at least about 210° C. The film is capable of forming a water-containing package by providing two 4 inch by 6 inch sheets of the film each having four perimeter sides, placing the sheets in superimposed, coextensive arrangement having the first layers of the films in contact with each other, and heat sealing three perimeter sides of the sheets together using a ?-inch wide sealing bar at a temperature of 290° F., a dwell time of 0.5 seconds, and a sealing pressure of 40 psig to form an open pouch having heat seals along three of the four perimeter sides. The open pouch can be filled with 100 milliliters of distilled water at a temperature of 73° F.Type: GrantFiled: August 27, 2002Date of Patent: December 27, 2005Assignee: Cryovac, Inc.Inventors: Arthur Leroy Berrier, Cynthia Louise Ebner
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Patent number: 6927006Abstract: A fuser member having a polyimide substrate, and thereover, an outer layer with from about 61 to about 99 volume percent fluorocarbon.Type: GrantFiled: May 28, 2003Date of Patent: August 9, 2005Assignee: Xerox CorporationInventors: Patrick J. Finn, Robert S. Pawlik, Elizabeth L. Barrese, David J. Gervasi, Pat Goode, Santokh S. Badesha
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Patent number: 6908649Abstract: This invention relates to a coextruded biaxially stretched tubular film for the durable and crease-free covering of goods packaged in the liquid or pasty state, in particular foodstuffs such as sausage-meat for boiling or cooking or soft cheese, which are heated during and/or after they are packaged.Type: GrantFiled: September 7, 1994Date of Patent: June 21, 2005Assignee: Wolff Walsrode AGInventors: Michael Hennig-Cardinal von Widdern, Gunter Weber
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Patent number: 6893703Abstract: A blanket which is placed over a person to protect the person from flying glass during extrication of the person from a vehicle involved in a collision. The blanket comprises at least one inner layer of pliable cut-resistant material and at least two outer layers of buffer material between which said inner layer is sandwiched so as to provide the feel and body of a blanket. A kit for use by rescue workers includes, in addition to the blanket, gloves for handling the blanket after use, a bio-hazard bag in which the used blanket is placed, and a carrying case for the blanket, gloves, and bio-hazard bag.Type: GrantFiled: January 14, 2004Date of Patent: May 17, 2005Inventors: Jerome S. McIntee, Jon R. Kemp
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Patent number: 6872459Abstract: This invention relates to the laminated material for food packaging, and its manufacturing process. The laminated material (10) consists of the quality keeping intermediate layer (12) laminated inside the paper core layer (11) and the core layer and the heat sealable innermost layer (13). The quality keeping intermediate layer comprises of an extrusion coatable blend polymer consisting of polymer component A 50-95% of nylon-MXD6 or EVOH and, polymer component B 5-50% of nylon 6, nylon 6, the blends or PET. The quality keeping intermediate layer is extruded and laminated directly in the core layer, the innermost layer contains at least the linear low density polyethylene which has a narrow molecular weight distribution, and has the properties parameter of mean density of 0.910-0.925, 100-122 degrees C. peak melting point, melt flow index of 5-20, swelling ratio (SR) of 1.4-1.6, and 5-50 micrometer layer thickness.Type: GrantFiled: September 18, 1999Date of Patent: March 29, 2005Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Peter Frisk, Norio Kobayashi, Hiroaki Ogita
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Patent number: 6846534Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one gas barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.Type: GrantFiled: May 23, 2003Date of Patent: January 25, 2005Assignee: Nike, Inc.Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
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Patent number: 6805969Abstract: Novel coating solutions are disclosed that promote desirable adhesion to substrates formed from nylon, polyester, or a combination thereof. These coating solutions include nylons having specific solubility together with select formaldehyde resins and resin mixtures. The solutions provide superior adhesion and are therefore attractive to thread applications as well as formed structures.Type: GrantFiled: March 13, 2002Date of Patent: October 19, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Rolando Umali Pagilagan
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Patent number: 6803113Abstract: A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises an outer film attached to an inner film, which outer film is a combination of a first nylon layer, an ethylene vinyl alcohol layer attached to a surface of the first nylon layer and a second nylon layer attached to the ethylene vinyl alcohol layer. The inner film is a combination of a third nylon layer having a silicone oil on a first surface of the third nylon layer, and a sealant film on a second surface of the third nylon layer, attached either directly or via an intermediate adhesive layer. An antifog composition is either contained within the sealant film or is coated on a surface of the sealant film opposite the third nylon layer. The silicone oil effectively blocks the migration of the antifog composition into an adjacent nylon layer when the multilayered film is stored in roll form.Type: GrantFiled: September 13, 2002Date of Patent: October 12, 2004Assignee: Honeywell International Inc.Inventors: Simon J. Porter, Jeffrey D. Moulton, Yuan-Ping Robert Ting
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Patent number: 6794048Abstract: A multilayer composite comprising the following layers bound directly to one another: I. a layer I of a polyamide molding composition; II. a layer II of a bonding agent comprising at least 50% by weight of a mixture of a) from 30 to 70 parts by volume of polyamide and b) from 70 to 30 parts by volume of polyolefin, where the sum of the parts by volume is 100 and in addition at least some of the polyamide is present either in the form of a polyamide-polyolefin graft copolymer or as a highly branched polyamine-polyamide copolymer; III. if desired a layer III of a polyolefin molding composition, displays good adhesion between layers which remains largely intact even on prolonged contact with alcohol-containing or aqueous media at elevated temperature.Type: GrantFiled: December 26, 2001Date of Patent: September 21, 2004Assignee: Degussa AGInventors: Guido Schmitz, Harald Haeger
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Patent number: 6793997Abstract: The molding of the present invention has a continuous conducting path from an inner to an outer surface, comprising: A) a skin layer on the inner and outer surface of said molding, comprising an electrically conductive plastic molding composition A comprising a first base polymer; and B) a core disposed between the skin layer on the inner and outer layer of said molding comprising a plastic molding composition B comprising a second base polymer, wherein the molding composition A differs from the molding composition B. The molding may be a connector, for example a connector used in a fuel-line system for connecting plastic pipes and other assemblies.Type: GrantFiled: May 29, 2001Date of Patent: September 21, 2004Assignee: Degussa AGInventor: Guido Schmitz
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Publication number: 20040086731Abstract: Described is a thermoformable film comprising at least one layer (I) of polyamide containing solid anisotropic fillers (A) and individual spherulites. The anisotropic fillers (A) of the layer (I) of the thermoformable film, in a number-weighted average of all the dispersed constituents of the anisotropic fillers (A), have a dimension of no more than 10 nm in at least one first direction (r1) freely selectable for each dispersed constituent and, in at least one second direction (r2) perpendicular to the first direction (r1), have a dimension of at least 50 times the dimension in the first direction (r1). The individual spherulites in the layer (I) have a number-average distance from each other of no more than 50 nm, and the cores of a majority of the individual spherulites in the layer (I) are free of a filler particle of the anisotropic fillers (A). Also described is a method of preparing the thermoformable films of the present invention, and methods of using the films for, for example, packaging foodstuffs.Type: ApplicationFiled: October 14, 2003Publication date: May 6, 2004Applicant: Wolff Walsrode AGInventors: Holger Eggers, Andreas Gasse, Rudi Klein
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Patent number: 6730399Abstract: This invention provides improved methods and compositions for achieving material coloration using particle scattering. These coloration effects can be designed to be either highly stable or dependent upon the switching effects of either temperature, integrated thermal exposure, moisture absorption, or exposure to actinic radiation. Articles employing materials with these coloration effects are described. Composition comprise a solid, light-transmitting matrix component having a non-liquid particle scattering colorant dispersed. Articles are produced wherein another solid second matrix component has an electronic transition colorant dispersed therein and the first and second compositions are disposed on one another and optionally interpenetrate each other. Colored articles are produced in the form of fibers, films and molded articles.Type: GrantFiled: December 3, 2002Date of Patent: May 4, 2004Assignee: Honeywell International, Inc.Inventors: Tammy Lynn Smith, Ray Baughman, Mary Frances Martin, Wonsik Choi, Jeffrey Moulton
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Patent number: 6720097Abstract: The present invention provides a barrier-forming film (A) useful for manufacturing various packaging container, which has a higher barrier-formability to prevent permeation of oxygen gas or steam, and a manufacturing method thereof. The barrier-forming film of the invention comprises a substrate film (1) having a vapor-deposited film (2) of an inorganic oxide, and by applying an annealing treatment thereto to limit the steam permeability within a range of from 2.0 to 0.000001 g/m2.day, and the oxygen permeability, within a range of from 2.0 to 0.000001 cc/m2.day.Type: GrantFiled: May 31, 2002Date of Patent: April 13, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Koujiro Ohkawa, Atsuo Tsuzuki, Kuniaki Yoshikata
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Patent number: 6720046Abstract: A low scalping laminate material for a container for food packaging includes a core layer of paper or paperboard, a polymeric coating applied to one side of the core layer and a combination of layers disposed on an opposing side of the core layer. The combination of layers includes a first barrier layer disposed adjacent the core layer, a first tie layer adjacent the first barrier layer, a second barrier layer adjacent the first tie layer, a second tie layer adjacent the second barrier layer and a second polymeric coating adjacent the second tie layer. The second polymeric coating is configured for a food contacting surface. The first and second barrier layers are formed from an admixture of an aromatic polyamide resin and polyamide 6, and the first and second tie layers are formed from one of a modified polyethylene and a polyolefin. A carton formed from the low scalping laminate is disclosed.Type: GrantFiled: June 14, 2001Date of Patent: April 13, 2004Assignee: Tetra Laval Holdings & Finance, S.A.Inventors: Stuart Schwartz, Tsuyoshi Baba, Nils Toft
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Publication number: 20040067378Abstract: Thermoplastic resin compositions are described in which amine salts of anthraquinone dyes and monoazo complex dyes are added. These compositions show superior performance in laser welding applications.Type: ApplicationFiled: September 26, 2003Publication date: April 8, 2004Inventors: Reiko Koshida, Yoshiteru Hatase, Ryuichi Hayashi
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Patent number: 6709759Abstract: The present invention relates to thermoplastic film structures having improved barrier and/or mechanical properties and methods for making the film structures. These improvements are achieved by incorporating into the thermoplastic film structures a polymeric nanocomposite comprising a polymer and nanosize particles of a modified clay.Type: GrantFiled: April 8, 2002Date of Patent: March 23, 2004Assignee: Pechiney Emballage Flexible EuropeInventors: Chad Mueller, Roger Kaas, Bertrand Fillon, Sandrine Tournier, Jean-Jacques Lerda
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Publication number: 20040053063Abstract: A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises an outer film attached to an inner film, which outer film is a combination of a first nylon layer, an ethylene vinyl alcohol layer attached to a surface of the first nylon layer and a second nylon layer attached to the ethylene vinyl alcohol layer. The inner film is a combination of a third nylon layer having a silicone oil on a first surface of the third nylon layer, and a sealant film on a second surface of the third nylon layer, attached either directly or via an intermediate adhesive layer. An antifog composition is either contained within the sealant film or is coated on a surface of the sealant film opposite the third nylon layer. The silicone oil effectively blocks the migration of the antifog composition into an adjacent nylon layer when the multilayered film is stored in roll form.Type: ApplicationFiled: September 13, 2002Publication date: March 18, 2004Inventors: Simon J. Porter, Jeffrey D. Moulton, Yuan-Ping Robert Ting
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Patent number: 6706413Abstract: The present invention is a non-porous, breathable membrane of at least polyamide-4,6, with an elongation at rupture of about 250 to about 500% in the longitudinal direction and about 200 to about 500% in the transverse direction. The membrane has a higher heat resistance than a non-porous, breathable membrane made from polyether ester and, if it also contains an antioxidant, passes the oven/watertightness test. If the membrane is produced from a mixture of polyamide-4,6 and about 10 to about 30% by weight polyether amide, the membrane exhibits a surprisingly increased water-vapor permeability. The membrane is usable in the manufacture of thermally protective clothing.Type: GrantFiled: April 3, 2002Date of Patent: March 16, 2004Assignee: Sympatex Technologies GmbHInventors: Bertram R. Böhringer, Henricus Joannes Maria Van De Ven, Jozef Christiaan Wilhelmus Spijkers
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Patent number: RE39347Abstract: A device, and a method for forming a softgel having multiple gelatin layers and softgels having multiple gelatin layers are disclosed. In particular there is provided a device for forming a gelatin sheet having at least two gelatin layers. Each gelatin layer has a thickness. The device comprises a gelatin spreader box which includes at least one opening for extruding a gelatin sheet. The device also includes a first and a second height adjustable gate disposed at least partially across the opening; and a first and a second height adjustment control. Adjustment of the first height adjustment control varies the height of the first gate and adjustment of the second height adjustment control varies the height of the second gate, thereby controlling the thickness of the at least two gelatin layers.Type: GrantFiled: February 5, 2003Date of Patent: October 17, 2006Assignee: Banner Pharmacaps, Inc.Inventor: Lee Ikemoto