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 264/173.19)
  • Patent number: 10046546
    Abstract: Crosslaminates of thermoplastic films have at least one of the films formed as a fluted structure, and two films are laminated to one another in such a manner that pockets are formed which contain gas. The pockets allow passage of gas between at least two adjacent flutes, whereby the product has an improved handle, and bags formed of the laminate have good stacking properties when filled with coarse particulates. The flute pitch is generally no more than 3 mm, while the pocket length is less than 50 mm. The bonding method involves spot bonding between the films, achieved by adhering the films together between crown portions of bosses on one film with molten material on the other film under a low pressure process, for instance achieved by provision of air pressure through adaptation of production apparatus, for instance die portions.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 14, 2018
    Assignee: The Glad Products Company
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 9663958
    Abstract: A physically crosslinked, closed cell continuous foam structure derived from recycled metallized polyolefin material; polypropylene, polyethylene, or combinations thereof, a crosslinking agent, and a chemical blowing agent is obtained. The foam structure is obtained by extruding a structure comprising a foam composition, irradiating the extruded structure with ionizing radiation, and continuously foaming the irradiated structure.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: May 30, 2017
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventors: Jesse Baldwin, Gary Hostman Clark, Pawel Sieradzki
  • Patent number: 9120294
    Abstract: A laminate film including a first polyolefin heat sealable resin layer and a second core layer including of a blend of 5-15 wt % of a metallocene-catalyzed butene-propylene or ethylene-propylene thermoplastic elastomer or ethylene-propylene plastomer or blends thereof which exhibit an isothermal crystallization temperature of 60° C. or less and 95-85 wt % of a crystalline propylene homopolymer is disclosed. The laminate film may include additional layers such as a third polyolefin resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 1, 2015
    Assignee: TORAY PLASTICS (AMERICA), INC.
    Inventor: Mark S. Lee
  • Publication number: 20150132515
    Abstract: A polypropylene-based film comprising at least three layers characterized by two skin layers and at least one core layer, wherein the at least one core layer and/or at least one skin layer comprises a polymer blend of: (i) a first propylene-based polymer which comprises (A) at least 60 weight percent (wt %) units derived from propylene, and (B) from 5 to 40 wt % units derived from ethylene, and wherein the first propylene-based polymer is characterized by a melting temperature (Tm) of less than or equal to 110° C., and (ii) a second propylene-based polymer selected from the group consisting of rPP and hPP and characterized by certain mechanical and/or sealing properties is provided. Also provided is a method of making the polypropylene-based film.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 14, 2015
    Inventors: Claudia Hernandez, Andy C. Chang, Teresa Bernal Lara
  • Patent number: 8999502
    Abstract: 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: Grant
    Filed: August 25, 2010
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masayuki Yoshino, Toshihiro Koyano, Daisuke Masaki, Yutaka Matsuki
  • Patent number: 8968615
    Abstract: 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: Grant
    Filed: October 21, 2010
    Date of Patent: March 3, 2015
    Assignee: Eastman Chemical Company
    Inventors: Michael Paul Ekart, Frederick Leslie Colhoun, Mary Therese Jernigan, Stephen Weinhold, Rodney Scott Armentrout
  • Publication number: 20150033669
    Abstract: Described herein are multilayer polymeric films with enhanced interlayer adhesion, having a gas barrier layer and a seal layer bonded directly to the gas barrier layer, wherein the seal layer is made of a blended polymer material that may aid in increasing adhesion to the gas barrier layer. Also disclosed are converted multilayer films for use in creating inflatable chambers in fluid communication with other chambers, methods of making the multilayer films, and a method of producing inflatable and sealable films for protective packaging having enhanced performance.
    Type: Application
    Filed: December 9, 2013
    Publication date: February 5, 2015
    Applicant: Pregis Innovative Packaging, Inc.
    Inventors: David Vincent Dobreski, Thomas D. Wetsch, Jennifer Lawrence, Harrison W. Francett
  • Publication number: 20150028516
    Abstract: A multi-functional battery separator comprises two or more active separator layers deposited from different polymer solutions to form a multilayered unitary structure comprising a free-standing film, a multiplex film on one side of a porous substrate, or separate films or multiplex films on opposite sides of a porous substrate. In a preferred embodiment, the cascade coating method is used to simultaneously deposit the active separator layers wet so that the physical, electrical and morphological changes associated with the polymer drying out process are avoided or minimized. The multi-functional separator is inexpensive to fabricate, exhibits enhanced ionic conductivity and ionic barrier properties, and eliminates gaps between individual layers in a separator stack that can contribute to battery failure.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 29, 2015
    Inventors: Hieu Duong, George Adamson
  • Publication number: 20140295076
    Abstract: A polyolefin-based heat sealable and peelable lidding film. The peelable seal films comprise from 5 to 95 percent by weight of a polyolefin based plastomer or elastomer and from 5 to 95 percent by weight of a second plastomer or elastomer. The invention also relates to methods of making and using the heat sealable, peelable seal films, having improved low seal initiation temperature.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Roberto SIU, Scott NARKEVICIUS, Jon Ian MONTCRIEFF
  • Publication number: 20140256203
    Abstract: A core-sheath composite fiber includes a core component including an easily alkaline elutable polyester with a main repeating unit constructed of ethylene terephthalate containing 2.0 to 5.5 mol % of an isophthalic acid component containing a metal sulfonate group relative to a total acid component and 3.0 to 6.0 mol % of an adipic acid component relative to the total acid component, and a sheath component including a polyamide.
    Type: Application
    Filed: August 27, 2012
    Publication date: September 11, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junichi Mizota, Takashi Ida, Hidetoshi Takanaga
  • Patent number: 8808595
    Abstract: 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: Grant
    Filed: April 7, 2009
    Date of Patent: August 19, 2014
    Assignee: Cryovac, Inc.
    Inventors: Robert Babrowicz, Marvin Russell Havens, Jerry Christopher Richardson
  • Publication number: 20140220326
    Abstract: A multi-layer biaxially oriented polymer film comprising a core layer (CL) and at least one sealing layer (SL), said sealing layer(s) (SL) comprise(s) a propylene copolymer composition (P) having a comonomer content in the range of 3.0 to 8.0 wt.-%, the comonomers are C5 to C12 ?-olefins, said propylene copolymer composition (P) 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: Application
    Filed: June 19, 2012
    Publication date: August 7, 2014
    Applicant: Borealis AG
    Inventors: Luigi Resconi, Nina Ackermans, Joachim Fiebig, Kristin Reichelt
  • Patent number: 8795816
    Abstract: 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: Grant
    Filed: March 14, 2013
    Date of Patent: August 5, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Matthew B. Lake, Bryon Paul Day
  • Publication number: 20140193596
    Abstract: Multilayer polymer structure comprising at least one couple of adjacent layers (L1-L2), characterized in that: layer (L1) comprises at least one polymer composition (C1) comprising at least one semi-crystalline polyphthalamide and at least one impact modifier (I1), and layer (L2) comprises at least one polymer composition (C2) comprising at least one functionalized polyolefin (FPO2), said functionalized polyolefin comprising functional groups chosen from carboxylic groups, their esters, their anhydrides and their salts. Process for manufacturing said multilayer structure, which comprises co-extruding polymer compositions (C1) and (C2) so as to obtain couple of adjacent layers (L1-L2). Shaped article comprising the invented multilayer structure and process for manufacturing the shaped article.
    Type: Application
    Filed: February 12, 2014
    Publication date: July 10, 2014
    Applicant: SOLVAY ADVANCED POLYMER, L.L.C.
    Inventors: Corinne BUSHELMAN, James K. Doty, Jean De Canniere, Claude DEHENNAU, Marie-Paule COLLARD
  • Publication number: 20140178686
    Abstract: A fiber is disclosed having a central axis or spline and a major outer surface, the fiber made of a base material and poly(vinylidene fluoride), the proportion of base material to poly(vinylidene fluoride) being greater towards the central axis or spline of the fiber than at the major outer surface of the fiber. The base material may be selected from the group consisting of polyethylene, polypropylene and nylon. The fiber has a surface roughness.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 26, 2014
    Applicant: POLYSTEEL ATLANTIC LIMITED
    Inventors: Dean Paul Forgeron, Shannon Marie O'Connell
  • Publication number: 20140159275
    Abstract: A large concentric co-extrusion die (1) is described having a plurality of annular or conical die mandrel layers (201-205). Each layer is formed between a pair of adjacent annular or conical die mandrels (101-106) defining between them a flow path for molten thermoplastics material from an inlet to an annular extrusion outlet (110) through which a thermoplastics tubular extrusion is formed in use. Extrusion takes place through the multiple annular layer outlets (301-305) to form a multi-layered product. At least one layer (203) of the annular or conical die mandrels has a plurality of molten material inlets arranged around the external circumference of the co-extrusion die with each inlet being connected to a feed channel (403) which has plural bifurcations (403.1, 403.2, 403.3) providing 2n subsidiary outlet feed channels (503) where n is the number of bifurcations. Each subsidiary outlet feed channel being connected to a corresponding helical outlet channel (703).
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: PLASTIKA KRITIS S.A.
    Inventors: Emmanouil Lempidakis, Ioannis Melas, Minas Kalarakis
  • Publication number: 20140144499
    Abstract: The present invention relates to backsheets containing formulated thermoplastic polyolefin (TPO) which may be used with photovoltaic modules. More specifically, the backsheets of the present invention have a first exterior layer that comprises TPO and a polyamide, such that a residual fusion heat after lamination of that layer is at least 40 J/g. Using such a layer, sufficient bonding to the encapsulant of a photovoltaic module can be achieved, while maintaining high heat resistance, having low distortion at high operating temperatures, and having relatively low high water vapor transmission rate. The present invention also relates to photovoltaic modules containing the backsheets of the present invention, as well as to methods for making the backsheets of the present invention.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 29, 2014
    Applicant: Honeywell International, Inc.
    Inventors: Neo Huang, Shuwen Peng, Hongsheng Zhang, Limei Cui
  • Publication number: 20140083487
    Abstract: An improved backsheet used in the construction of solar panels is disclosed. A method of manufacturing the backsheet and solar panel comprising the backsheet, including coextrusion processes are also disclosed. Additionally, a photovoltaic solar panel module comprising the backsheet of the invention is disclosed. The backsheet of the instant invention may comprise an exterior layer having inner and outer surfaces, a middle layer, having inner and outer surfaces, and an interior layer having inner and outer surfaces. In one embodiment of the invention, the outer surface of the middle layer may be adjoined to the inner surface of the exterior layer, and the inner surface of the middle layer may be adjoined to the outer surface of the interior layer. The exterior layer, middle layer, and interior layer may be adjoined via a co-extrusion process, thereby eliminating the need for the use of adhesives for bonding the layers of the backsheet together.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Inventors: E. David Santoleri, Robert F. Davis
  • Patent number: 8673197
    Abstract: A multi-layer structure comprising a functional resin layer obtained by covering a core layer of a base body resin or a second functional resin with a shell layer of a first functional resin, and a base body resin layer containing the functional resin layer therein. The layers of the functional resins are formed at positions where they are allowed to exhibit their functions to a sufficient degree, a plurality of functions can be imparted, and a molten resin mass having the above multi-layer structure can be formed by the compression-forming.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 18, 2014
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Makoto Etoh, Hiroaki Goto, Atsushi Kikuchi
  • Publication number: 20140061967
    Abstract: A polymer composite and its method of manufacture using a recycled multilayer material. An example of the recycled multilayer material is comprised of a polyethylene/polyethylene terephthalate/aluminum film that may be extruded with organic filler to obtain desirable performance in wood-substitute products such as deck boards, railing, fencing, pergolas, residential cladding/siding, sheet products, and other applications.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: CPG International, Inc.
    Inventors: Bruce STANHOPE, Burch E. ZEHNER, Bryan K. BUHRTS
  • Publication number: 20140017476
    Abstract: 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: Application
    Filed: September 13, 2013
    Publication date: January 16, 2014
    Applicant: SOLUTIA INC.
    Inventors: David Paul Bourcier, John Joseph D'Errico, Jean-Pierre Etienne, Gary Matis
  • Publication number: 20130309426
    Abstract: A sealant skin layer for a multilayer film structure and multilayer film structure comprising same having improved processability, seal strength, reduced seal temperature and coefficient of friction are disclosed. The multilayer film may be transparent, contain a cavitating agent, or is pigmented to form an opaque film. Also, the multilayer film may be metallized or coated with a barrier coating.
    Type: Application
    Filed: April 9, 2013
    Publication date: November 21, 2013
    Applicant: ExxonMobil Chemical Company
    Inventors: Hao C. Thai, George F. Cretekos
  • Publication number: 20130291729
    Abstract: A method of fabricating a gas separation membrane includes providing a coextruded multilayer film that includes a first polymer layer formed of a first polymer material and a second polymer layer formed of a second polymer material, the first polymer material having a first gas permeability. The coextruded multilayer film is axially oriented such that the second polymer layer has a second gas permeability that is greater than the first gas permeability.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 7, 2013
    Applicant: Case Western Reserve University
    Inventors: Eric Baer, Shannon Armstrong, Benny D. Freeman, Donald R. Paul, Grant Offord
  • Patent number: 8568638
    Abstract: 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: Grant
    Filed: May 4, 2005
    Date of Patent: October 29, 2013
    Assignee: Casematic S.A. de C.V.
    Inventor: Ruben Garcia Cruz
  • Patent number: 8501064
    Abstract: Techniques for preparing PNCs are provided. In one embodiment, a polymer extruding device may include a barrel configured to accommodate a composite material, a shaft rotatably disposed in the barrel, and a motor coupled to the shaft and configured to rotate the shaft, thereby moving the composite material. The polymer extruding device may further include a die including one or more injectors configured to inject nano particles into the die to cause shear stress to be exerted to the composite material, thereby forming a layer of the nano particles on a surface of the composite material.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: August 6, 2013
    Assignee: SNU R&DB Foundation
    Inventor: Youngtack Shim
  • Patent number: 8460588
    Abstract: 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: Grant
    Filed: July 30, 2007
    Date of Patent: June 11, 2013
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Matthew B. Lake, Bryon Paul Day
  • Patent number: 8449019
    Abstract: There are provided a vehicle interior finishing laminate sheet in which a polypropylene resin foam board of high foaming extent having interconnected cells is used as a core member, a vehicle interior trim material, a method for manufacturing the vehicle interior finishing laminate sheet, and an apparatus therefor. The present invention relates to a vehicle interior finishing laminate sheet 1 provided with a core member consisting of a polypropylene resin foam board 2. The polypropylene resin foam board 2 is extrusion molded into a plate shape, and has an interconnected cell ratio of 50% or higher and a foaming extent of 10- to 50-fold. A plurality of polypropylene resin foam boards 2, 2 are joined to each other by the hot plate welding method or the laser transmission welding method, whereby a large-size core member of vehicle interior finishing laminate sheet 1, which is used for a roof lining or the like, can be formed.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: May 28, 2013
    Assignee: TS Tech Co., Ltd.
    Inventors: Akira Kodama, Hiroshi Yoshida, Takahiro Shimizu
  • Patent number: 8361362
    Abstract: 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: Grant
    Filed: February 15, 2006
    Date of Patent: January 29, 2013
    Assignee: 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
  • Patent number: 8354159
    Abstract: The present invention provides a polyamide based mixed resin laminated film roll formed by winding up a polyamide based mixed resin laminated film comprising a plurality of polyamide mixed resin sheets stacked on top of each other. A first sample cutout portion is provided within 2 m from the winding end of film, and a final sample cutout portion is provided within 2 m from the winding start of film. The roll is regulated so that, when sample cutout portions are provided at intervals of about 100 m from the first sample cutout portion, for all samples cutout from the cutout portions, the elastomer content, tensile modulus of elasticity, thickness unevenness in the longitudinal direction and other properties fall within a predetermined variation range.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 15, 2013
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tadashi Nishi, Yoshinori Miyaguchi, Naonobu Oda, Katsuhiko Nose
  • Publication number: 20120313266
    Abstract: A diffuser membrane and a method for manufacturing the same are provided. In the method for manufacturing, a first material is heated and extruded to form a base layer and a second material is heated and extruded to form a coating layer. The base layer and coating layer may be extruded substantially simultaneously in a coextrusion process. Accordingly, the coating may be applied to the base layer in a manner that optimizes the bonding between the two layers and provides the ability to control the thickness of the coating layer. Alternatively, the base layer is formed initially and the coating layer is subsequently formed thereover. The first and second materials have differing properties. The first material may comprise polyurethane and the second material may comprise polyurethane and PTFE.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 13, 2012
    Inventors: Warrick S. WADMAN, David A. CAPRON, Charles E. THARP
  • Publication number: 20120308789
    Abstract: Imageable multilayer films are provided which include at least a core layer comprising a pigment or other colorant, a clear sealant layer, and an image-side tie layer intermediate the core layer and the sealant layer, where the tie layer comprises a cavitating agent. The sealant layer may include a first polymer component having a heat of fusion of less than 75 J/g and a second polymer component. The multilayer film may have a seal strength greater than about 200 g/2.54 cm for a seal formed on a crimp sealer at a temperature of at least 93.3° C. The multilayer film may be biaxially oriented, an image may be effected on the film without the use of inks, and the film may be useful in packaging applications.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 6, 2012
    Inventors: Mark W. Lockhart, David A. Liestman, George F. Cretekos, Pang-Chia Lu
  • Patent number: 8303873
    Abstract: Multilayer composites are obtained from a molding composition which contains the following components: a) 100 parts by weight of polyamide and b) from 0.005 to 10 parts by weight of a compound having at least two carbonate units by coextruding with a molding composition based on a high-melting-point polymer whose crystallite melting point Tm is at least 255° C. and/or whose glass transition temperature Tg is at least 180° C.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: November 6, 2012
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Andreas Dowe, Rainer Göring, Michael Böer, Roland Wursche, Martin Himmelmann, Franz-Erich Baumann, Karl Kuhmann
  • Publication number: 20120263924
    Abstract: A multi-layer film having a first film layer being at least partially formed from a polymer (A) and a polymer (B) and a second film layer being at least partially formed from the polymer (A), the polymer (B), a polymer (C), and optionally an opacifying agent, wherein at least one of the polymer (A), the polymer (B) and the polymer (C) is synthetic and is at least partially derived from a renewable resource such that the multi-layer film has a bio-based content of about 10% to about 100% using ASTM D6866-10, method B. Methods of forming multi-layer films are also provided.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 18, 2012
    Inventors: Paul Thomas Weisman, Eric Patton Weinberger, Pier-Lorenzo Caruso, Michael Remus
  • Patent number: 8252216
    Abstract: Durable, weather and an insect-resistant railway ties are fabricated by the co-extrusion into a die of at least one mixture comprising asphalt binder and aggregate and recycled plastic, optionally strengthened by fillers such as glass fiber or KEVLAR.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 28, 2012
    Assignee: Duropar Technologies, Inc.
    Inventors: Brian Abramson, James R. Inglis
  • Publication number: 20120196061
    Abstract: This invention relates to a film including (i) at least one sealing layer, including greater than 50.0 wt. %, based on the total weight of the sealing layer, of a modifier, the modifier including a copolymer of propylene derived units and one or more comonomers selected from the group consisting of C2 and C4 to C10 alpha-olefin derived units, wherein the comonomer content is in the range of about 2.0 to 25.0 wt. %; and (ii) at least one core layer, including a polymer having a propylene derived unit content of greater than 90 wt. %, based on the weight of the polymer; and wherein the film has a seal initiation temperature of 105° C. or less; and wherein when a seal is formed, the sealed film has a hermeticity of 65% or more. The invention also relates to methods to produce such films, articles including such films, and the use of such films to form heat sealed articles.
    Type: Application
    Filed: December 2, 2011
    Publication date: August 2, 2012
    Inventor: David R. Weisinger
  • Publication number: 20120178880
    Abstract: Polymer blends having improved electromechanical responses and mechanical properties for use in electromechanical application are disclosed. In particular, polymer blend including at least one electrostrictive terpolymer, e.g., poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) or a derivative thereof, and at least one fluoropolymer, e.g., PVDF or derivative thereof such as PVD-TrFE are disclosed. The polymer blends advantageously have a transverse strain, i.e., a strain perpendicular to the applied electric field direction, that is about 1.5% or higher (as measured at 100 MV/m) while also having an elastic modulus of no less than about 400 MPa (as measured at 30° C. and 1 Hz by dynamic mechanical analyzer).
    Type: Application
    Filed: July 15, 2010
    Publication date: July 12, 2012
    Inventors: Qiming Zhang, Minren Lin, Sheng Liu, Lee J. Gorny
  • Patent number: 8211344
    Abstract: The present invention relates to the use of a microcrystalline polyamide for obtaining an object having all or part of its outer surface formed from this microcrystalline polyamide and having a particular surface finish, in which: the manufacture of the object comprises steps carried out hot between the Tg (glass transition temperature) and the Tm (melting point) of this microcrystalline polyamide; the transparency of the microcrystalline polyamide is such that the light transmission at 560 nm on a polished object 1 mm in thickness is greater than 80%, advantageously greater than 88%, the transparency being measured on the object obtained by standard processing methods, such as injection molding and sheet extrusion/calendering. Advantageously, the microcrystalline polyamide is such that its degree of crystallinity is greater than 10% and less than 30% (1st DSC heating according to ISO 11357 at 40° C.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: July 3, 2012
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille
  • Patent number: 8206834
    Abstract: Multilayer structure comprising at least one couple (L1-L2) of adjacent layers (L1) and (L2), wherein: the layer (L1) comprises at least one polymer composition (C1) comprising: (i) at least one semi-aromatic polyamide, and (ii) at least one impact modifier (I1); the layer (L2) comprises at least one polymer composition (C2) comprising: (i) at least one un-functionalized polyolefin (PO2); (ii) at least one functionalized polyolefin (FPO2), the functionalized polyolefin comprising functional groups chosen from carboxylic groups, their esters, their anhydrides and their salts. Process for manufacturing such multilayer structure, which comprises co-extruding or co-blowmolding polymer compositions (C1) and (C2) so as to obtain one couple (L1-L2) of adjacent layers (L1) and (L2). Shaped article comprising such multilayer structure and process for manufacturing the shaped article.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: June 26, 2012
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: James K. Doty, Alice Weimin Liu, Gregory Warkoski, Jean De Canniere
  • Patent number: 8206629
    Abstract: A co-extrusion process enhances the durability of the ultimate product over previous systems which use relatively fragile paint coatings to limit heat absorption. By providing near-IR transmissive and reflective pigments within the co-extruded polymers, a highly durable finished product is obtained. The co-extruded layers are disclosed for use in fence and deck applications, but will also find application in a wide variety of building product applications, both exterior and interior.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 26, 2012
    Assignee: Certainteed Corporation
    Inventors: Ming-Liang Shiao, Joong-Youn Kim
  • Patent number: 8182906
    Abstract: A multilayer structure includes a clear polyolefin layer, a colored polyolefin layer, and a random polyolefin backing layer. The colored and backing layers are coextruded and are permanently bonded at a layer interface, which is exclusive of an adhesive. The structure has a DOI of 70 or greater and passes a gravelometer impact test per the GM9508P standard, with a 10 pint load, at a ?30° C. temperature, and at an impact angle of 30 degrees. Among other uses, the structures are appropriate for use as body panels in the motor vehicle industry. The structures display a “class A” finish and meet a variety of requirements for durability and weatherability. An ABA structured backing layer and a method of making it are also described herein.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 22, 2012
    Assignee: A. Schulman, Inc.
    Inventor: Dennis C. Smith
  • Publication number: 20120070661
    Abstract: A pressure-sensitive adhesive tape according to an embodiment of the present invention includes, a pressure-sensitive adhesive layer; and a base layer, wherein: the pressure-sensitive adhesive layer contains an amorphous propylene- (1-butene) copolymer polymerized by using a metallocene catalyst, the amorphous propylene-(1-butene) copolymer having a weight-average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less; and the base layer contains an ethylene-vinyl acetate copolymer.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 22, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinsuke IKISHIMA, Takashi HABU, Fumiteru ASAI, Kooki OOYAMA, Tadao TORII, Katsutoshi KAMEI, Yuuki KATOU, Tomokazu TAKAHASHI
  • Patent number: 8137817
    Abstract: A polyamide based resin film roll is provided. The polyamide based resin film roll comprising: a first sample cutout portion within 2 m from the winding end of film; and a final cutout portion within 2 m from the winding start of film, wherein when a sample cutout portion is set up in approximately every 100 m from the first sample cutout portion, in all samples cut out from each of the cutout portions, mechanical properties such as boiling water shrinkage percentage and refraction index in the thickness direction are adjusted within a given range of variation width.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 20, 2012
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tadashi Nishi, Yoshinori Miyaguchi, Naonobu Oda, Shigeru Komeda, Katsuhiko Nose
  • Publication number: 20120064317
    Abstract: A multilayer structure includes a clear polyolefin layer, a colored polyolefin layer, and a random polyolefin backing layer. The colored and backing layers are coextruded and are permanently bonded at a layer interface, which is exclusive of an adhesive. The structure has a DOI of 70 or greater and passes a gravelometer impact test per the GM9508P standard, with a 10 pint load, at a ?30° C. temperature, and at an impact angle of 30 degrees. Among other uses, the structures are appropriate for use as body panels in the motor vehicle industry. The structures display a “class A” finish and meet a variety of requirements for durability and weatherability. An ABA structured backing layer and a method of making it are also described herein.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 15, 2012
    Applicant: A. SCHULMAN, INC.
    Inventor: Dennis C. Smith
  • Publication number: 20120015182
    Abstract: A coextrusion process for coextruding a thermoplastic elastomer with two outer layers of adhesive to form a film, and a laminate comprising a plurality of layers including an adhesive layer, a sublayer and a barrier layer. The barrier layer comprises a dynamically vulcanized thermoplastic elastomer composition present in one or more plies of the barrier layer. The sublayer comprises a first ply of a first adhesive composition joining the barrier layer and a second ply, and the adhesive layer comprises the second ply, which is vulcanizable with diene-based rubber. The sublayer of the adhesive can be laid down in contact with the relatively hot thermoplastic elastomer to moderate the temperature of the outer layer of the adhesive, whereby the outer layer of the adhesive at least is protected from scorching and can be co-vulcanized with rubber in a tire building process.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventors: Gregory S. Caraway, Porter C. Shannon, Adriana S. Silva
  • Patent number: 8048352
    Abstract: 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: Grant
    Filed: February 24, 2009
    Date of Patent: November 1, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Douglas A. Devens, Jr., Michele Zoromski
  • Publication number: 20110263172
    Abstract: A multi-component article with controllable degradation and/or disintegration, comprising: a first part (A) which comprises at least one polyolefin combined with at least one prodegradation/prodisintegration agent; and; a second part (B) which comprises at least one polyolefin combined with at least one prodegradation/prodisintegration agent, provided that said first and said second parts differ at least by either one of type of polyolefin, type of prodegradation/prodisintegration agent and level of prodegradation/prodisintegration agent, the types of polyolefin and of prodegradation/prodisintegration agent and the levels of prodegradation/prodisintegration agent being selected so as said part (B) degrades more slowly than said part (A), and said part (B) at least partially covers said part (A).
    Type: Application
    Filed: November 13, 2009
    Publication date: October 27, 2011
    Applicant: Total Petrochemicals Research Feluy
    Inventors: Gloria Vendrell, Hugues Haubruge, Thierry Saudemont
  • Patent number: 7998385
    Abstract: A transparent multilayer stretched product is produced through a process including: providing a resin laminate including at least on layer of polyglycolic acid resin, heat-forming and cooling the resin laminate, reheating the resin laminate until the polyglycolic acid resin is crystallized to be opaque and then stretching the reheated resin laminate. The thus-obtained multilayer stretched product is excellent in gas-barrier property in addition to the transparency and is suitable as a packaging material or container.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: August 16, 2011
    Assignee: Kureha Corporation
    Inventors: Kazuyuki Yamane, Ryo Kato, Hisanori Tobita
  • Publication number: 20110189449
    Abstract: In one embodiment, a sheet, comprises: a cap layer comprising an acrylic polymer; and a base layer, where the cap layer and the base layer were co-extruded to form the sheet, which is thermoformable. The base layer comprises a polycarbonate. The cap layer is 10% to 30% of an overall thickness and the overall thickness is 5 mil to 500 mil.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 4, 2011
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Sandeep Tripathi, Shreyas Chakravarti, Sapna Kirk Blackburn
  • Patent number: 7988894
    Abstract: 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: Grant
    Filed: October 13, 2008
    Date of Patent: August 2, 2011
    Assignee: Toray Plastics (America), Inc.
    Inventors: Mark S. Lee, Keunsuk P. Chang
  • 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