Polyamide (e.g., Nylon, Etc.) Or Addition Polymer Of At Least One Monoethylenically Unsaturated Monomer (e.g., Polyethylene, Polypropylene, Polystyrene, Etc.) Containing Layer Patents (Class 264/173.14)
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Patent number: 11709302Abstract: Provided is a phase difference film formed of a resin containing a polymer having crystallizability. The phase difference film has an NZ factor of less than 1 and an in-plane retardation Re that satisfies 125 nm?Re?345 nm. The polymer has a crystallization degree of 15% or more. Alternatively, the polymer is an alicyclic structure-containing polymer being a hydrogenated product of a ring-opening polymer of dicyclopentadiene.Type: GrantFiled: April 28, 2022Date of Patent: July 25, 2023Assignee: ZEON CORPORATIONInventor: Toshihide Murakami
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Patent number: 11459488Abstract: Compositions which are well suited for forming into machine direction orientation (MDO) films are described. Multilayer films containing one or more layers of the compositions and/or films are also described. Additionally, label assemblies utilizing the multilayer films, labeled substrates, and related methods are described. Various versions of the multilayer films are described including films having at least two skin layers and an interior core layer. Particular multilayer films are described having polyethylene rich cores.Type: GrantFiled: June 2, 2015Date of Patent: October 4, 2022Assignee: Avery Dennison CorporationInventors: Christopher J. Blackwell, Sara E. Porosky
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Patent number: 11020945Abstract: A multilayer structure is provided, which includes a layer containing a saponified ethylene-vinyl ester copolymer, and a layer of a thermoplastic resin other than the saponified ethylene-vinyl ester copolymer provided on at least one side of the saponified ethylene-vinyl ester copolymer-containing layer with the intervention of an adhesive resin layer. An interface layer having a thickness (X) of 50 to 400 nm is present in an interface between the saponified ethylene-vinyl ester copolymer-containing layer and the adhesive resin layer. Alternatively, a viscosity increase rate in the interface between the saponified ethylene-vinyl ester copolymer-containing layer and the adhesive resin layer is 0.1% to 8%. Therefore, the multilayer structure has long-run durability, and is less liable to have poor appearance even if being produced by a multilayer coextrusion method.Type: GrantFiled: February 4, 2020Date of Patent: June 1, 2021Assignee: MITSUBISHI CHEMICAL CORPORATIONInventor: Ryohei Komuro
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Patent number: 10625479Abstract: A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.Type: GrantFiled: November 10, 2017Date of Patent: April 21, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Terence D. Neavin, Robert M. Biegler, William T. Fay
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Patent number: 10466587Abstract: A press roller for imprint method including: a roller body having a cylindrical shape extending in a first direction; an energy generating part disposed on a curved surface of the roller body, the energy generating part including a plurality of energy generating units configured to be individually controlled to emit energy; and a compensation layer disposed on the energy generating part, the compensation layer including a material that expands in volume when the energy is applied.Type: GrantFiled: August 15, 2017Date of Patent: November 5, 2019Assignee: Samsung Display Co., Ltd.Inventors: Sung-Young Choi, Minsoo Kim, Mugyeom Kim, Sungchul Kim, Gug Rae Jo
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Patent number: 9812678Abstract: In some embodiments, a molding packaging material includes an outer side base layer made of a heat resistant resin, an inner sealant layer, a metal foil layer arranged between the outer side base material layer and the inner sealant layer, and a matte coat layer formed on a side opposite to a metal foil layer side of the outer side base material layer. The matte coat layer includes a resin component, a solid fine particle, and a lubricant, and the inner sealant layer includes a thermoplastic resin and a lubricant.Type: GrantFiled: August 8, 2014Date of Patent: November 7, 2017Assignee: SHOWA DENKO PACKAGING CO., LTD.Inventors: Yuji Minamibori, Honglin Wang
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Publication number: 20150111092Abstract: A multi-layer shrink film. The shrink film can exhibit a significant amount of shrink within a certain temperature range that is above the onset temperature of the film. The film can exhibit a shrinkage that is at least about 50% of the total shrink within a temperature range T1 above the onset temperature of the film. In one aspect, the shrink film comprises a core layer and skin layers disposed about opposite surfaces of the core layer, and tie layers disposed between the core and the skin layers, the skin layers individually comprising a polyester, e.g., a glycol-modified polyester, and the tie layers individually comprising an anhydride modified material.Type: ApplicationFiled: April 26, 2013Publication date: April 23, 2015Inventors: Paul Janousek, Vadim Zaikov, Farid Ghiam, Robert Quattlebaum, Walter Mueller
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Patent number: 8999502Abstract: A cover tape having a temperature at which a heat shrinkage rate in at least one of a machine direction and a transverse direction perpendicular to the machine direction is 5% or more between 80° C. to 200° C.Type: GrantFiled: August 25, 2010Date of Patent: April 7, 2015Assignee: Asahi Kasei Chemicals CorporationInventors: Masayuki Yoshino, Toshihiro Koyano, Daisuke Masaki, Yutaka Matsuki
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Publication number: 20150086863Abstract: Disclosed is a highly heat-resistant film for electrode terminals. The heat-resistant film includes a polymer layer as a central substrate to be sealably interposed between a pouch and electrode terminals. The polymer layer is formed of a mixture of at least one polymer selected from the group consisting of an ethylene-norbornene copolymer, polymethylpentene, polyalkylene terephthalate and polyphenylene sulfide with highly heat-resistant polypropylene in a weight ratio of 5:5 to 9:1. The heat-resistant film simultaneously meets requirements in terms of thermal adhesiveness and high temperature dimensional stability, which are contradictory to each other in conventional films for electrode terminals of secondary batteries. In addition, the heat-resistant film has enhanced electrolyte resistance to improve the durability of a secondary battery. Further disclosed are a method for producing the heat-resistant film and an electrode terminal structure including the heat-resistant film.Type: ApplicationFiled: August 16, 2012Publication date: March 26, 2015Applicant: SHIN HEUNG ENERGY & ELECTRONIC CO., LTD.Inventors: Man Yong Hwang, Gi Rin Kim, Jong Ho Kim
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Patent number: 8968615Abstract: A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl/g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%?CA?OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues.Type: GrantFiled: October 21, 2010Date of Patent: March 3, 2015Assignee: Eastman Chemical CompanyInventors: Michael Paul Ekart, Frederick Leslie Colhoun, Mary Therese Jernigan, Stephen Weinhold, Rodney Scott Armentrout
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Publication number: 20150021810Abstract: A method for producing a phase difference plate includes a step of forming a layered body including a resin layer (a) containing a resin A having a positive intrinsic birefringence, a resin layer (b) that contains a resin B having a negative intrinsic birefringence and is provided on a surface of the resin layer (a), and a resin layer (c) that contains a resin C having a positive intrinsic birefringence and is provided on another surface opposite to the resin layer (a) of the resin layer (b); a first stretching step of stretching the layered body in one direction at a temperature T1 and a stretching ratio of 3 times or more; and a second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the stretching direction at a temperature T2 that is lower than the temperature T1 to obtain a phase difference plate, wherein the resin C contains a polymer X having a positive intrinsic birefringence and cross-linked particles of a polymeType: ApplicationFiled: February 27, 2013Publication date: January 22, 2015Inventor: Hironari Sudeji
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Publication number: 20140363655Abstract: An object of the present invention is to provide a multilayer structure securing excellent appearance even after being left in high humidity environment regardless that the multilayer structure comprises a resin composition layer containing a drying agent. The multilayer structure comprises a laminated unit (?/?/?) wherein polyamide resin layers (?) are integrally laminated on both faces of a resin composition layer (?) containing (A) saponified ethylene-vinyl ester copolymer and (B) drying agent.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventor: Tomonori YOSHIDA
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Publication number: 20140327174Abstract: A method of forming a confined crystallization multilayer film includes coextruding a plurality of first polymer layers and a plurality of second polymer layer to form a multilayer film wherein each first polymer layer is sandwiched between second polymer layers and axially orienting the multilayer film at a temperature below the melting temperature (Tm) of the second polymer layer and to a thickness such that each first polymer layer forms a high aspect ratio substantially crystalline lamellae.Type: ApplicationFiled: July 14, 2014Publication date: November 6, 2014Inventors: Anne Hiltner, Eric Baer, Yijian Lin
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Publication number: 20140322542Abstract: A multilayer structure and a method for forming a multilayer structure, the multilayer structure includes: (A) a first polyolefin layer; (B) a styrene polymer layer; (C) a second polyolefin layer; and (D) at least one tie-layer comprising a tie-layer composition. The tie-layer composition includes: (1) 25 to 75 wt. %, based upon the total weight of the tie-layer composition, of a first copolymer, wherein the first copolymer comprises ethylene derived units and units derived from a C4-8 ?-olefin; (2) 5 to 25 wt. %, based upon the total weight of the tie-layer composition, of a polyethylene resin grafted with an ethylenically unsaturated carboxylic acid or acid derivative; (3) 20 to 50 wt. %, based upon the total weight of the tie-layer composition, of a triblock copolymer composition; and (4) optionally, 0.001 to 20 wt. %, based upon the total weight of the tie-layer composition, of a low density polyethylene.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Applicant: Equistar Chemicals, LPInventor: Maged G. Botros
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Patent number: 8871125Abstract: A process to produce a laminate comprising coextruding a dynamically vulcanized alloy (DVA) film with an adhesive layer comprising a vulcanizable elastomeric composition through a die to produce the laminate. The process provides a residence time of the vulcanizable elastomeric composition in the melt to partially scorch the vulcanizable elastomeric composition. A melt of the DVA is in contact with the melt of the vulcanizable elastomeric composition in the die for at least 5 seconds, optionally also with a change in the area of the contact between the DVA film and the adhesive layer as it passes through the die, to increase the adhesion between the adhesive layer and the DVA layer relative to a shorter co-residence time. A laminate and a pneumatic tire comprising the laminate are also disclosed.Type: GrantFiled: December 19, 2011Date of Patent: October 28, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Porter C. Shannon, Michael J. Vinck
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Publication number: 20140265010Abstract: The present invention relates to a method of preparing a photochromic-dichroic film. The method includes forming a molten extrudate that includes a first molten thermoplastic layer that includes one or more photochromic-dichroic compounds, that is interposed between separate second and third outer molten thermoplastic layers. The molten extrudate is cooled so as to form a multilayer film that includes a first layer that includes one or more photochromic-dichroic compounds, that is interposed between separate second and third outer layers. The second and third outer layers are removed from the first layer of the multilayer film. The resulting sole first layer, which is retained, defines the photochromic-dichroic layer, which exhibits reduced or minimal optical distortion.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Inventors: David Park, Anil Kumar
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Patent number: 8808595Abstract: The present invention provides a multilayer film for forming medical solution pouches that help prevent or reduce the presence of bubbles or foam in the solution after heat sterilization. In particular, the present invention provides a multilayer film for forming medical solution pouches that are capable of passing the bubble test as set forth in the Chinese State Drug Package Container Material Standard No. YBB00112005. In particular, the present invention provides a multilayer film in which polyamide 612 or calcium stearate component has been incorporated as an anti-foaming agent. The presence of polyamide 612 or calcium stearate in one or more layers of the film helps prevent the formation of foam in the solution after heat sterilization.Type: GrantFiled: April 7, 2009Date of Patent: August 19, 2014Assignee: Cryovac, Inc.Inventors: Robert Babrowicz, Marvin Russell Havens, Jerry Christopher Richardson
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Patent number: 8795816Abstract: Coextruded films provide cross directional zoned multiple components side-by-side to one another. Systems and methods relate to coextruding such films. During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers. This temperature differential is selected to reduce a difference between the viscosities of the first and second polymers making the viscosity of the first polymer close enough to the viscosity of the second polymer to avoid separation upon coextrusion. Further, the films may form a layer in subsequent lamination to other material layers.Type: GrantFiled: March 14, 2013Date of Patent: August 5, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Matthew B. Lake, Bryon Paul Day
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Publication number: 20140166183Abstract: A composite film material usable in a data carrier card body includes a first outer plastic layer, an inner plastic layer and a second outer plastic layer, all the layers together forming a coextruded composite. The plastic material of the first outer layer is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the plastic material of the inner layer is a thermoplastic elastomer (TPC) or contains a TPC, and the plastic material of the second outer layer is a PETG or contains a PETG.Type: ApplicationFiled: February 4, 2014Publication date: June 19, 2014Applicant: GIESECKE & DEVRIENT GMBHInventors: Josef RIEDL, Cordula REGENSBURGER, Andreas BRAUN
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Patent number: 8741433Abstract: Compositions and packaging films are provided having a blend of an amorphous nylon copolymer, a low temperature polyamide, and a high temperature polyamide. The compositions can be used in making heat shrinkable films and food packages having desirable levels of free shrink.Type: GrantFiled: December 9, 2005Date of Patent: June 3, 2014Assignee: Curwood, Inc.Inventors: Thomas Andrew Schell, Matt C. Peterka
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Publication number: 20140134413Abstract: A multi-layer polymer film comprising a core layer and a sealing layer, said sealing layer comprises a propylene copolymer composition, said propylene copolymer composition—has a comonomer content in the range of 3.0 to 8.0 wt.-%, the comonomers are C5 to C12 ?-olefins, —comprises a polypropylene (A) and a polypropylene (B) in the weight ratio [(A)/(B)] of 20/80 to 80/20, wherein—said polypropylene (A) has a comonomer content of equal or below 4.0 wt.-%, the comonomers are C5 to C12 ?-olefins, and—said propylene copolymer (B) has a comonomer content of 4.0 to 20.0 wt.-%, the comonomers are C5 to C12 ?-olefins.Type: ApplicationFiled: June 19, 2012Publication date: May 15, 2014Applicant: Borealis AGInventors: Joachim Fiebig, Kristin Reichelt
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Publication number: 20140127434Abstract: The invention pertains to a composition (C1) comprising: at least one (meth)acrylic modified VDF polymer [polymer (A)] comprising recurring units derived from comprising recurring units derived from vinylidene fluoride (VDF) monomer and at least one hydrophilic (meth)acrylic monomer (MA) of formula (I), wherein each of R1, R2, R3, equal or different from each other, is independently a hydrogen atom or a C1-C3 hydrocarbon group, and ROH is a hydrogen or a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group; at least one inorganic UV blocker compound in an amount not exceeding 5% wt, with respect to the weight of polymer (A), to multilayer assemblies comprising one layer made from said composition (C1), to a method for manufacturing said multilayer assemblies and to the use of the same in different field of use, including protection of PV modules.Type: ApplicationFiled: July 10, 2012Publication date: May 8, 2014Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Stefano Mortara, Julio A. Abusleme
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Publication number: 20140037887Abstract: A flexible, low haze multi-layer film comprising a print skin layer; a slip skin layer comprising from 0.5 wt % to 10 wt % of a surface cross-linked oil or gum polyalkylsiloxane; and a core layer comprising polypropylene between the skin layers; wherein the oily polyalkylsiloxane may have a viscosity within the range of from 10,000 to 100,000 cSt (25° C.) when not cross-linked; or wherein the gum polyalkylsiloxane may have a viscosity within the range of from 1,000,000 to 50,000,000 cSt (25° C.) when not cross-linked. Such multi-layered film can be adhered on the print skin layer side to an adhesive substrate, wherein the adhesive substrate comprises a cold seal adhesive opposite the multi-layer film to form a laminate packaging.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Inventor: Eric W. BENDER
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Patent number: 8642147Abstract: A process that is faster than conventional processes for manufacturing a film tube from a polymer and/or metal film material includes moving the film tube in relation to the joining tools during the joining process. Before the joining process of the film tube, the metal film material exists in the form of at least one film web. The edges of this film web are joined to one another in a joining process forming at least one longitudinal joint seam. During the joining process the film tube is moved in relation to the joining tools.Type: GrantFiled: February 13, 2004Date of Patent: February 4, 2014Assignee: Windmoeller & Hoelscher KGInventors: Uwe Koehn, Jan Thorsten Weber, Juergen Steinberg
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Publication number: 20140020749Abstract: The invention concerns a multilayer biaxially oriented white polyester film (adhesion, absence of chalking, opacity whiteness, reflectance, hydrolysis resistance & light stability) which has three polyester layers: a core layer and two outer layers and contains TiO2 particles. In this film: (i) at least one layer includes a PET whose: number average molecular weight is within [18500-40000]; intrinsic viscosity IV is ?0.70 dL/g; carboxyl group content is ?30 eq/T (ii) the core layer includes TiO2 particles [0.1-40]% w/w; (iii) the intrinsic viscosity IV of the film is between [0.5-0.85] dL/g; (iv) a small endothermic peak temperature is between 180-230° C.; (v) at least one light stabilizer is added in at least one of the outer layers, in a total concentration between [0.1-35]% w/w. The invention also includes the method for manufacturing such film and the laminate which includes the above multilayered film and which is part of the back sheet of a solar cell.Type: ApplicationFiled: July 15, 2013Publication date: January 23, 2014Inventors: Valerie Lacrampe, Karine Billard, Timothy Stevenson, Naoki Kawaji, Hideki Fujii, Julien Faldysta
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Publication number: 20140008836Abstract: A process for obtaining a film that comprises the incorporation of natural antimicrobial agents in a polymeric structure for the development of packages designed to increase the shelf life of chilled or refrigerated meat, preferably fresh chilled salmon; said process comprises the following steps: a) mixing a first extrusion of the antimicrobial active agent with low density polyethylene powder to obtain a pellet; b) a second extrusion to obtain a film incorporating the pellet obtained in step (a) in a proportion of 10% polyethylene pellets; c) conduct a three-layer coextrusion to develop the film into which the antimicrobial agent is incorporated, wherein the antimicrobial active agent is incorporated into the film layer which is in direct contact with salmon, where the binder, the middle and the outer structure of the film, provide the requirements for the film structure, without the incorporation of the active agent.Type: ApplicationFiled: September 13, 2013Publication date: January 9, 2014Applicant: Universidad de Santiago de ChileInventors: Abel GUARDA, Ximena Valenzuela, Alberto Ramirez, Maria Jose Galotto
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Patent number: 8568638Abstract: A polymer-based sausage casing suitable for use with uncooked meats such as chorizo is disclosed. A polymer resin is blended with a silicon-based barrier control agent, preferably a polyhedral oligomeric silsesquioxane, to increase the permeability of the sausage casing. The resultant blend can be biaxially stretch-oriented to produce a single-layered polymer-based sausage casing suitable for use with uncooked sausage meats such as chorizo, and specifically suitable for the gas and moisture permeability needed during the curing process for uncooked sausage meats. Such polymer-based casings can also be employed for cooked sausages by choosing a silicon-based barrier control agent that increases gas and moisture barrier, thereby increasing shelf-life for unpeeled sausages. A method for improving the peelability of cooked sausage casings by injecting a thin coating of a releasing agent, without the addition of a surfactant, into the sausage casing during the shirring process is also disclosed.Type: GrantFiled: May 4, 2005Date of Patent: October 29, 2013Assignee: Casematic S.A. de C.V.Inventor: Ruben Garcia Cruz
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Patent number: 8551377Abstract: A touch fastener strip includes a sheet-form material substrate having a front face, an array of fastener elements integrally molded with a resin base layer on the front face of the substrate and an array of discrete regions of resin (e.g., gripping elements) integrally molded with a resin base layer through apertures in the sheet-form material on the back face of the substrate. The array of fastener elements forms a discrete band of fastener elements extending longitudinally along the front face of the fastener strip, and the array of gripping elements forms a discrete band of gripping elements extending longitudinally along the back face of the fastener strip.Type: GrantFiled: September 11, 2008Date of Patent: October 8, 2013Assignee: Velcro Industries B.V.Inventor: Clinton Dowd
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Publication number: 20130233911Abstract: The invention relates to: 1) a multilayer film for resealable packaging, wherein said multilayer film includes a layer having a thickness of between 7 and 300 ?m and consisting of a hot-melt pressure-sensitive adhesive composition having an MFI of 0.01 and 100 g/10 minutes, including 40 to 70% of an SIS styrene block copolymer mixture having a styrene content of 10 to 16% and a diblock copolymer content of 60% to 90%; and 30 to 60% of one or more tackifying resins having a softening temperature of between 5 and 140° C.; 2) a method for manufacturing said film by means of coextrusion; and 3) the use of said film for manufacturing resealable cartons.Type: ApplicationFiled: September 23, 2011Publication date: September 12, 2013Applicant: BOSTIK S.A.Inventors: Christophe Robert, Christophe Notteau
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Patent number: 8529813Abstract: The present invention provides multiple layer interlayers having a soft inner polymer layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by controlling the melt fracture that occurs at the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, during formation of the interlayer. By precisely controlling the surface topography of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.Type: GrantFiled: December 28, 2010Date of Patent: September 10, 2013Inventors: David Paul Bourcier, John Joseph D'Errico, Jean-Pierre Etienne, Gary Matis
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FILM STRUCTURE WIHT HIGH OXYGEN BARRIER PROPERTIES AND METHOD OF MANUFACTURING SUCH A FILM STRUCTURE
Publication number: 20130221564Abstract: Film structure of at least five layers, two outer layers (2) made of a polyolefin on which is each time provided, on the opposite sides, a layer (4) forming a gas barrier and whereby, between both above-mentioned gas barriers (4), is provided a layer (3) made of a foamed synthetic material, whereby the outer layers (2) consist of a mixture of a polyolefin and a binder, which makes it possible to bond this polyolefin with the layer (4) forming the gas barrier.Type: ApplicationFiled: November 20, 2012Publication date: August 29, 2013Applicant: Tekni-Plex Europe, naamloze vennoostschapInventor: Tekni-Plex Europe, naamloze vennoostschap -
Publication number: 20130209756Abstract: Provided is a film including: (a) an intermediate layer comprising a polymer and an antistatic agent, said intermediate layer having a first side and a second side; (b) a first layer including a polymer, said first layer being on the first side and is printed or printable; and (c) a second layer including a polymer and a non-migratory slip agent, said second layer being on the second side, wherein the film has at least one of (i) a thickness of at least about 30 ?m, (ii) a static coefficient of friction of about 0.15 to less than 0.30, and (iii) a kinetic coefficient of friction of about 0.15 to less than 0.30. Also provided are a method for producing such a film, and labels such as cut and stack labels comprising the film.Type: ApplicationFiled: May 11, 2011Publication date: August 15, 2013Inventors: JoAnn Helen Squier, Benoit Ambroise, Mark W. Lockhart
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Patent number: 8460588Abstract: Coextruded films provide cross directional zoned multiple components side-by-side to one another. Systems and methods relate to coextruding such films. During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers. This temperature differential is selected to reduce a difference between the viscosities of the first and second polymers making the viscosity of the first polymer close enough to the viscosity of the second polymer to avoid separation upon coextrusion. Further, the films may form a layer in subsequent lamination to other material layers.Type: GrantFiled: July 30, 2007Date of Patent: June 11, 2013Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Matthew B. Lake, Bryon Paul Day
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Publication number: 20130130000Abstract: The invention produces a magnetic receptive polymer film with properties that will adhere to magnets by incorporating magnetic receptive particles in the formulation of the extruded or casted film. Furthermore, by use of the co-extrusion technique, the invention produce a print media in the form of a multilayered polymer film including a magnetic receptive core layer for adhering the film to magnets, and one or more layers attached to either one or both sides of the core layer, wherein at least one outermost surface of the layers is absent or substantially absent of ferromagnetic material and suitable to accept printing.Type: ApplicationFiled: January 14, 2013Publication date: May 23, 2013Inventor: Dayton J. Deetz
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Patent number: 8361362Abstract: A method for supplying molten polymer and expanding agent flows to a mixing area, by dispersing the expanding agent in a polymer melt by a rapid dividing mixing in a first static mixer, holding and intensively dividingly mixing the thus obtained mixture in a second static mixer, cooling the mixture, during mixing, in a third static mixer to an intermediate temperature, cooling the mixture to a granulation temperature, extruding polymer threads and subsequently quenching and granulating them. During processing, a weight ratio between the polymer melt flow Gp and the expanding agent flow GBA ranges from 13.0 to 19.0, a temperature in the first static mixer for rapid dividing mixing is calculated according to formula (I), in the second and third static mixed according to formulas (II) and (III), respectively, wherein GBA max. is the quantity of a maximum possible expanding agent flow, GBBct.Type: GrantFiled: February 15, 2006Date of Patent: January 29, 2013Assignee: Sulzer Chemtech Ltd.Inventors: Maxim Nikolaevich Rogov, Halyl Halafovich Rahimov, Marat Hafisovich Ishmijarov, Sergei Ivanovich Mjachin, Alexej Vladimirovich Prokopenko, Alexandr Alexeevich Krasheninnikov, Irina Vladimirovna Mjasitsheva, Leonid Isaakovich Ginzburg, Eugenia Michailova Tarkova
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Patent number: 8349236Abstract: Disclosed are a polyethylene microporous film and a method of preparing the same. The polyethylene microporous film, which has a laminated structure comprising B layer/A layer/B layer, prepared by melt-mixing a polyethylene and an aliphatic hydrocarbon solvent together at controlled mixing ratios to separately form an A layer and a B layer having different porosities, and then coextruding the A and B layers, thus exhibiting excellent mechanical properties, such as strength and elongation, and high-temperature stability. Therefore, the polyethylene microporous film is suitable for use in a rechargeable battery separator.Type: GrantFiled: January 15, 2010Date of Patent: January 8, 2013Assignee: Toray Advanced Materials Korea Inc.Inventor: Chang Ho Suh
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Patent number: 8221890Abstract: A multilayer composite which has improved adhesion between the layers, with the following layers: I. an inner layer I selected from among a fluoropolymer molding composition and a polyolefin molding composition; II. a bonding layer II which has the following composition: a) from 2 to 80 parts by weight of a polyamine-polyamide graft copolymer, b) from 0 to 85 parts by weight of a polyester, c) from 0 to 85 parts by weight of a polymer selected from among polyamides, fluoropolymers and polyolefins, where the sum of the parts by weight of a), b) and c) is 100; d) not more than 50 parts by weight of additives; III. a layer III of a polyester molding composition.Type: GrantFiled: October 3, 2005Date of Patent: July 17, 2012Assignee: Evonik Degussa GmbHInventors: Guido Schmitz, Harald Haeger, Hans Ries
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Patent number: 8187683Abstract: An object of the present invention is to provide a multilayered polyamide-based tube for food packaging that is free from blocking in a Layer (C), and that has an excellent adherence to processed meat or like packaged food. The present invention provides a multilayered polyamide-based tube for food packaging comprising a Layer (A), a Layer (B) and a Layer (C); the multilayered polyamide-based tube having a low-temperature shrinkage ratio of 2 to 10%, and exhibiting heat shrinkage properties and gas barrier properties; the Layer (A) containing a polyamide-based resin; the Layer (B) containing a polyolefin-based resin; and the Layer (C) that comes in contact with the packaged food, the Layer (C) being a Layer (C-1) that contains a polypropylene-based resin having a heat distortion temperature (ISO 75B-1 or ISO 75B-2) of not less than 60° C. and a Vicat softening point of not less than 120° C.Type: GrantFiled: March 26, 2009Date of Patent: May 29, 2012Assignee: Gunze LimitedInventors: Hiroki Kuriu, Hiroyuki Yabuta
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Patent number: 8048352Abstract: Medical devices and methods of making the devices are described. In some embodiments, the methods include a method of manufacturing a device including a first layer and a second layer, the method including the steps of selecting a material for the second layer, the material having a viscosity value at a shear rate of about 1 s?1 or less and at a selected temperature; selecting a nanocomposite material for the first layer that has a viscosity within about 20% to about 125% of the viscosity value of the material for the second layer; and co-extruding the first and second layers.Type: GrantFiled: February 24, 2009Date of Patent: November 1, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Douglas A. Devens, Jr., Michele Zoromski
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Publication number: 20110202028Abstract: Release sheet materials for use as packaging material for individually packaged disposable absorbent articles, typically sanitary napkins and the like.Type: ApplicationFiled: February 9, 2011Publication date: August 18, 2011Inventors: Carlo Toro, Norman BROYLES, Enzo POMPEI, Fiorello SALONE, Arsen SIMONYAN, Andrew Julian WNUK
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Patent number: 7988894Abstract: The present invention relates to methods of manufacturing multi-layered polyolefin films that provide excellent adhesion to cold seal cohesive formulations. A surface of the film is discharge-treated. It has been found that when the discharge-treated surface has at least 0.3% nitrogen functional groups, it provides an excellent cold seal receptive surface. A biaxially oriented polypropylene film made according the invention may also have a second skin layer, opposite the first layer, which may be used for metallizing, laminating, or printing.Type: GrantFiled: October 13, 2008Date of Patent: August 2, 2011Assignee: Toray Plastics (America), Inc.Inventors: Mark S. Lee, Keunsuk P. Chang
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Patent number: 7976750Abstract: Method of encapsulating optoelectronic components, by embedding the components to be encapsulated between a first transparent polymer layer and a second polymer layer, which is filled with unactivated foaming agent, and then activating the foaming agent, so that the two polymer layers join to one another, in particular weld to one another, and the components are enclosed between the two polymer layers.Type: GrantFiled: May 8, 2009Date of Patent: July 12, 2011Assignee: Tesa SEInventors: Axel Burmeister, Franziska Zmarsly
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Publication number: 20110117341Abstract: The present invention provides a film that has excellent anti-fogging properties, processability without causing curling, as a film for use in food packaging.Type: ApplicationFiled: June 3, 2009Publication date: May 19, 2011Applicant: GUNZE LIMITEDInventors: Hiroyuki Yoshizaki, Norio Uehara, Naoyuki Maruichi, Takehiko Toyonaga
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Publication number: 20110104468Abstract: Disclosed is a microporous polyolefin multilayer film which can be used as a separator for a battery, and a preparing method thereof. The microporous polyolefin multilayer film is a trilayer microporous film which is prepared by a wetting method to have both surface layers containing polyethylene of 95 wt % or more having a melting temperature of 125° C. or more, and an intermediate layer containing polypropylene of 50 to 90 wt % having a melting temperature of 160° C. or more and polyethylene of 10 to 50 wt % having a melting temperature of 125° C. or more, wherein a thickness of the film is 9-50 ?m, a puncture strength is 0.15 N/?m or more, a permeability is 1.5×10?5 Darcy or more, a multiplication of the puncture strength and the permeability is 0.4×10?5 Darcy·N/?m or more, a contraction rate in a traverse direction at a temperature of 150° C. for 1 hour is 15% or less, and a melt fracture temperature of 160° C.Type: ApplicationFiled: May 29, 2009Publication date: May 5, 2011Applicant: SK ENERGY CO., LTD.Inventors: Jang-Weon Rhee, In Hwa Jung, Gwig Won Kang, Young Keun Lee
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Publication number: 20110094665Abstract: The present invention provides multiple layer interlayers having a soft inner polymer layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by controlling the melt fracture that occurs at the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, during formation of the interlayer. By precisely controlling the surface topography of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.Type: ApplicationFiled: December 28, 2010Publication date: April 28, 2011Inventors: David Paul Bourcier, John Joseph D'Errico, Jean-Pierre Etienne, Gary Matis
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Patent number: 7910032Abstract: The present invention provides an exemplary process for manufacturing a flexible packaging laminate into a pouch for containing liquids such as edible oil. The process includes taking granules of polypropylene and medium density polyethylene in a proportion of 1-1.5:1.5-2.5, —melting the granules at 200-230 degrees Celsius in a 3 layer blown film extruder to form a co-extruded film, —printing the film by a Rotogravure printing technique at 40-60 degrees Celsius, —laminating the printed film with a conventional 5 layer co-extruded nylon film at 60-80 degrees Celsius, —curing the laminated film at 35-45 degrees Celsius for at least 2 days, —and slitting the cured laminated film to a desired size for using with a Form Fill Seal machine (FFS Machine) at 160-180 degrees Celsius, to make pouches that hold liquids, such as edible oil.Type: GrantFiled: December 14, 2005Date of Patent: March 22, 2011Assignee: Cargill India Private LimitedInventor: Mukul Kumar
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Publication number: 20110045314Abstract: A multilayer structure having a layer of a polypropylene (A) and a layer of an ethylene-vinyl alcohol copolymer (B) laminated to each other via a layer of an adhesive resin composition (C), wherein the adhesive resin composition (C) contains a thermoplastic resin (c1), having functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, and an ethylene-?-olefin copolymer (c2), having a density of 0.925 g/cm3 or less and not having the functional groups. Consequently, a multilayer structure can be provided that has a layer of a polypropylene and a layer of an EVOH and has good interlayer adhesion strength.Type: ApplicationFiled: December 27, 2007Publication date: February 24, 2011Applicant: Kuraray Co., Ltd.Inventors: Takeyuki Igarashi, Tomonori Murata, Tomoyuki Watanabe
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Patent number: 7882671Abstract: A multi-layer roofing membrane is provided including a top sheet including a co-extruded cap and inner layer and a bottom sheet. The use of a co-extrusion die allows for multi-layer sheets that reduce the need for expensive fillers in all but a cap layer of the membrane. A scrim reinforcement layer is optionally embedded in the membrane. When installed on a roof substrate, the membrane can be sealed by heat welding the seams of the membrane sheets or by other means.Type: GrantFiled: February 21, 2007Date of Patent: February 8, 2011Inventors: Douglas Bruce, Greg Sharrun, Richard Peng
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Publication number: 20110009844Abstract: Release sheet materials for use as packaging material for individually packaged disposable absorbent articles, typically sanitary napkins and the like.Type: ApplicationFiled: May 27, 2010Publication date: January 13, 2011Inventors: Carlo Toro, Fiorello Salone, Enzo Pompei
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Patent number: 7858016Abstract: Layer made of base plastic comprising, in the dispersed form, nodules with a diameter of less than or equal to one micron comprising barrier plastic incompatible with the base plastic; multilayer structure comprising at least one such layer and process for the manufacture of such layers/structures.Type: GrantFiled: February 21, 2005Date of Patent: December 28, 2010Assignee: Inergy Automotive Systems Research (Societe Anonyme)Inventors: Jules-Joseph Van Schaftingen, Serge Dupont, Barbara Mabed