Shaping Of Polyamide (e.g., Nylon, Etc.) Or Addition Polymer Of At Least One Monoethylenically Unsaturated Monomer (e.g., Polyethylene, Polypropylene, Polystyrene, Etc.) Containing Layer On Preform Patents (Class 264/171.23)
  • Patent number: 11951690
    Abstract: A method for processing massive fiber bundles includes massive fiber-bundle formation and massive materials handling, wherein plural small-diameter bundles are unified, while more or less preserving their legacy cross-sectional form. It also includes bending, such as to create non-linear preforms, and preform-charge fabrication. Embodiments of the invention operate to help preserve a desired fiber alignment throughout a part fabricated from relatively large-diameter fiber bundles.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: April 9, 2024
    Assignee: Arris Composites Inc.
    Inventors: J Scott Perkins, Bert D. Mannhalter, Riley Reese
  • Patent number: 11851538
    Abstract: A process of preparing carbon fiber reinforced polymer (CFRP) intermediate products is described wherein the carbon fibers are prepared from a carbon fiber precursor and then in-line impregnated with a polymeric resin as part of a continuous process. The process can provide cost savings compared to processes wherein carbon fibers are prepared and then impregnated with polymeric resins in a separate process, thereby making the use of CFRP materials more economically feasible. Also described is a system for preparing carbon fiber from a carbon fiber precursor and impregnating the carbon fiber with polymeric resin to provide CFRP intermediate products, such as continuous tapes or rods or discontinuous flakes or pellets.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: December 26, 2023
    Assignee: University of Tennessee Research Foundation
    Inventors: George Ervin Husman, Uday Kumar Vasant Vaidya
  • Patent number: 11759978
    Abstract: A system for production of a thermoplastic injection molding material granulate has at least one production unit for the production of a fiber reinforced plastic granulate from a thermoplastic granulate and natural fibers. to the system has at least one heat-treatment unit for the treatment of the fiber-reinforced plastic granulate providing heat such that an outer layer of each heated granulate grain of the fiber-reinforced plastic granulate is at least partially converted to a liquid physical state. The system has at least one applicator unit for applying a chemical foaming agent powder to at least some portions of each heated granulate grain, where the heat treatment unit is equipped to carry out the heat treatment such that a temperature of the molten outer layer of the respective granulate grain is below a reaction temperature of the foaming agent.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: September 19, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas Baranowski, Markus Franzen, Maik Broda, Pascal Rebmann
  • Patent number: 10731278
    Abstract: Pile articles (20,22), especially pile weatherstripping, and a method and apparatus (10) for making such articles where the backing (24) and the pile (26) are of unlike material, especially nylon yarn for the pile (26) and polypropylene containing material for the backing (24), wherein prior to the welding of the pile (26) to the backing (24) the pile is first pre-heated using ultrasonic energy to melt the pile in a region (65) thereof where the pile is ultrasonically welded to the backing and before the weld is made. The ultrasonic melting occurs upstream of the location where the pile (26) is welded to the backing (24) so that the ultrasonically pre-heated melted region (65) of the pile (26) can cool and become at least partially solidified. Then pile (26) at the pre-heated melted region (65) is welded to the backing (24) and causes a reactive or chemical weld to occur, thereby attaching the pile (26) to the backing (24).
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: August 4, 2020
    Inventors: David M. Loughney, John F. Scherlein, Akira Chanthabandith
  • Patent number: 10487202
    Abstract: A composition includes (a) a polypropylene or a polypropylene copolymer, (b) a polyol, and (c) optionally an organic peroxide. The polyol (b) is in the range of from about 0.01 wt. % to about 25 wt. % of the total weight of (a), (b) and (c). The method of making such a polymer composition, the method of using such a polymer composition, and a sheet or a fabricated article comprising such a polypropylene composition, are also provided.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 26, 2019
    Assignee: Braskem America, Inc.
    Inventor: Rajendra Krishnaswamy
  • Patent number: 10287421
    Abstract: A polymer composition having a reduced tendency to create a static electric charge during a molding operation is provided. More particularly, the composition contains an ionic liquid that is distributed within a polymer matrix that contains an aromatic polymer. In addition to being electrically conductive, the ionic liquid can exist in liquid form during melt processing, which allows it to be more uniformly blended within the aromatic polymer matrix. This improves electrical connectivity and thereby enhances the ability of the composition to rapidly dissipate static electric charges from its surface.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: May 14, 2019
    Assignee: Ticona LLC
    Inventor: Young Shin Kim
  • Patent number: 10155860
    Abstract: A composition includes (a) a polypropylene or a polypropylene copolymer, (b) a polyol, and (c) optionally an organic peroxide. The polyol (b) is in the range of from about 0.01 wt. % to about 25 wt. % of the total weight of (a), (b) and (c). The method of making such a polymer composition, the method of using such a polymer composition, and a sheet or a fabricated article comprising such a polypropylene composition, are also provided.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: December 18, 2018
    Assignee: Braskem America, Inc.
    Inventor: Rajendra Krishnaswamy
  • Patent number: 10035893
    Abstract: A blow-molded foam is provided by foaming and blow-molding the resin material including a polyethylene resin. The foamed resin includes the antioxidant by 300 ppm or more in total. The antioxidant is preferably the combination of a phosphorus antioxidant and a phenolic antioxidant. The optimum amount of phosphorus antioxidant to be included is 250 ppm to 3000 ppm, and that of phenolic antioxidant is 250 ppm to 750 ppm. In the manufacture, the collected resin material and the resin including 300 ppm or more of the antioxidant are melted and kneaded and the foaming agent is mixed thereto to provide the foamed resin, and the foamed resin is blow-molded.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: July 31, 2018
    Assignee: KYORAKU CO., LTD.
    Inventor: Takeru Sano
  • Patent number: 10017589
    Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)<A×[(I2)B], where A=5.00×102 (g/mole)/(dg/min)B, and B=?0.40; and b) a MS versus I2 relationship: MS?C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=?0.55.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: July 10, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis F. J. Den Doelder, Teresa P. Karjala, Karl Zuercher, Jian Wang, Stefan Hinrichs
  • Patent number: 9802972
    Abstract: The present invention provides novel ruthenium or osmium based complex structures with a unique combination of ligands comprising a Schiff-base type ligand, a N-heterocyclic carbene ligand and a CO ligand which can be prepared according to two different routes involving easily accessible starting materials and which represent excellent catalysts for hydrogenating unsaturated compounds, oligomers and polymers, in particular at unforeseeably low temperatures.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: October 31, 2017
    Assignee: ARLANXEO DEUTSCHLAND GMBH
    Inventors: Zhenli Wei, Qingchun Liu
  • Patent number: 9108349
    Abstract: A profiled extrusion replication process is disclosed that includes steps of (a) extruding a molten material through an extrusion die having at least one profiled die lip to form a molten extrudate having first and second major extrudate surfaces and having a first structural feature in the first major extrudate surface; (b) bringing the molten extrudate into contact with a tool surface comprising one or more second structural features so as to cause a portion of the first structural feature in the first major extrudate surface to contact the one or more second structural features on the tool surface; and (c) cooling the molten extrudate to provide the structured film. Structured films and apparatus for making structured films are also disclosed.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: August 18, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Graham M. Clarke, Patricia A. Eull, Kenneth A. Peterson, David F. Slama, Lee E. Olsen
  • Publication number: 20150069650
    Abstract: Magnetic receptive media, the magnetic receptive media comprises at least one printable substrate layer and at least one layer formed from a hot melt polymer composition, the hot melt polymer composition comprising Greater than about 70% to about 95% magnetite and about 5% to less than about 30% thermoplastic polymer and methods of making and using the same.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Applicant: MAGNETNOTES, LTD.
    Inventors: Randall Boudouris, Luke Rundquist
  • 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
  • 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: 8551377
    Abstract: 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: Grant
    Filed: September 11, 2008
    Date of Patent: October 8, 2013
    Assignee: Velcro Industries B.V.
    Inventor: Clinton Dowd
  • Patent number: 8524141
    Abstract: A card sheet including a top material having punched lines, the front side of the top material being printable. A carrier material of at least one polymer layer is directly applied as by extruding to the back side of the top material. The polymer has a stress-at-break in the range of 10 to 30 MPa and an elongation at break in the range of 10 to 120%. From the card sheet individual cards may be broken out to form high quality calling (business) cards, photograph cards, post cards or the like.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: September 3, 2013
    Inventors: Martin Utz, Karl Lengfeller, Michael Wilkes, Sriram Venkatasanthanam, Ramin Heydarpour, Chia-Hsi Chu, Ronald Ugolick, Ali R. Mehrabi
  • 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: 8338539
    Abstract: The present invention is a film obtained from a blend of chemically distinguishable copolymers, wherein the film has a light transmission of at least 85%, and/or a haze of less than 6%, and wherein the blend comprises a component copolymer has a secant modulus of less than 15,000 when cast independently into a film.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: December 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Richard J. Arhart, Geraldine M. Lenges
  • 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
  • Publication number: 20120146254
    Abstract: Method for making plastic fiber for application in concrete with largest grain diameters >4 mm, with an average diameter of 0.15 to 2 mm, corresponding to approximately 160 to 28,000 dtex. Using a co-extrusion process, a bi-component fiber is formed having a central core and a casing around the central core, the central core and the casing contain different pure polymers or polymer mixtures, and then the co-extruded bi-component fiber is stretched by a factor of 5 to 15, and thereafter a structured or grooved surface is embossed onto the co-extruded stretched bi-component fiber. The embossing is performed such that a depth of the embossing is more than 10% of an average fiber diameter, and a maximal distances of structure tips within incorporated structures of the embossing in an axial direction lie in a region between 0.5 mm and 3 mm.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 14, 2012
    Applicants: EIDGENÖSSISCHE MATERIALPRÜFUNGS-UND FORSCHUNGSANSTALT, FIBROTEC AG
    Inventors: Josef Kaufmann, Eugen Schwitter
  • Patent number: 8038917
    Abstract: The present invention relates to a process for preparing a thermoplastic vulcanizate (TPV) comprising: contacting a thermoplastic polymer, a cross-linkable elastomer, at least one curative, and at least one cure activator in a solvent to form Composition A. The solvent is then removed, and thereafter the cross-linkable elastomer is at least partially cured. The average particle size of the cross-linkable elastomer is 10 microns or less after the solvent is removed.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 18, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, Sunny Jacob, Peijun Jiang, Armenag H. Dekmezian, Aspy K. Mehta, Peter W. Manders, Pradeep Shirodkar, Palanisamy Arjunan
  • Patent number: 7998375
    Abstract: Fiber-reinforced composite posts are produced having high strength and high radiopacity. In a method of manufacturing the fiber-reinforced composite posts, fibers are pulled through filled resin and heat is applied at various steps in the process to provide high strength and optimal radiopacity.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 16, 2011
    Assignee: Pentron Clinical Technologies, LLC
    Inventors: Ajit Karmaker, Mike Karlak, Weitao Jia
  • Publication number: 20110052929
    Abstract: A method including forming a bilayer polymer film having an oriented polypropylene film and a metallocene-catalyzed polypropylene film wherein the metallocene-catalyzed polypropylene film has a seal initiation temperature of from 80° C. to 130° C. A laminate including a biaxially oriented polypropylene film, a metallocene-catalyzed polypropylene film, and a substrate, wherein the metallocene-catalyzed polypropylene film is disposed between the biaxially oriented polypropylene film and the substrate.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 3, 2011
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Lea Ann Nairn, Marco Vinicio Araya Vargas
  • Patent number: 7842373
    Abstract: Geotechnical article, and process for making it, the article having coefficient of thermal expansion less than about 150 ppm/° C. at ambient; resistance to acidic media greater than polyamide 6 resin and/or resistance to basic media greater than PET resin; resistance to hydrocarbons greater than that of HDPE; creep modulus of at least 400 MPa at 25° C., at 20% of yield stress load for 60 minutes (ISO 899-1); and 1 percent secant flexural modulus at least 700 MPa at 25° C. (ASTM D790); the article including a composition including (a) from about 1 to about 95% by weight of the composition of at least one functional group containing polymer or oligomer; and (b) from about 5 to about 99% by weight of the composition of at least one engineering thermoplastic, and optionally containing a filler and optionally containing an unmodified polyolefin, ethylene copolymer or ethylene terpolymer.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: November 30, 2010
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7833450
    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 moulding and sheet extrusion/calendering.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: November 16, 2010
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille
  • Patent number: 7740943
    Abstract: In a molded composite article formed by directly bonding a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, the polyamide-series resin comprises a polyamide block copolymer containing (A) a polyether segment having at least one terminal imino group. The polyamide-series resin may comprise a polyamide-series resin having a free amino group in a concentration of not less than about 10 mmol/kg. The molded composite article is producible, for example, by heating at least one of the polyamide-series resin and the thermoplastic polyurethane-series resin to bond the former to the latter. Thus obtained molded composite article is suitable for a member of a shoe and an industrial roll. In such a process, the polyamide-series resin member and the thermoplastic polyurethane-series resin member both of which are different in nature from each other can be directly and firmly bonded together.
    Type: Grant
    Filed: May 1, 2005
    Date of Patent: June 22, 2010
    Assignee: Daicel-Evonik Ltd.
    Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
  • Publication number: 20100090363
    Abstract: There is described a method and an apparatus for making a multilayered web product (1), including at least one fibre layer (6) which is formed by airforming combined with at least one additional layer in the form of a plastic film (13, 21). The fibre layer (6) is formed and fixed, preferably by heat fixing, and the plastic film (13, 21) is extruded directly upon or in immediate association to the previously formed and fixed fibre layer and is joined with the fibre layer by a compacting action in a compacting unit (9, 17). By the compacting, the hot plastic film will be joined to and pressed into the fibre layer for producing an integrated continuous product without need of separate heat supply.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 15, 2010
    Inventor: Jes Kjaer Larsen
  • Publication number: 20090325448
    Abstract: An elastic composite formed from a lightweight nonwoven facing that has a low degree of strength in the cross-machine direction (“CD”) is provided. Through selective control over certain parameters of the materials employed in the composite and the formation process, the present inventors have discovered that such low strength and lightweight facings may be readily laminated to an elastic film without significantly damaging their integrity. For example, in one embodiment, the elastic film may possess a multi-layered construction that includes an elastomeric elastic layer positioned adjacent to a strength-enhancing thermoplastic layer. The polymer content and thickness of the thermoplastic layer are generally selected to impart additional strength and integrity to the film. Likewise, the polymer content of the elastic layer may also be selected so that the film possesses a sufficient tack for adhering to the facing.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Howard M. Welch, James Austin, Lisa Sanabria, Jose A. Siqueira, Wing-Chak Ng, Bryan D. Haynes, Oomman P. Thomas, Iris V. Schumacher, Christopher Laslie, Stephen C. Meyer
  • Publication number: 20090169862
    Abstract: The present invention relates to a multi-layered microporous polyolefin film for a battery separator and a method for preparing the same. The microporous multi-layered film of the present invention has a characteristics to have both the low shutdown temperature conferred by the polyethylene and the high melt fracture temperature conferred by the polypropylene and heat-resistant filler. In addition, it has the high strength and stability conferred by the micropores prepared under wet process and the high permeability and high strength conferred by the macropores prepared under dry process. Therefore, this multi-layered film can be used effectively to manufacture a secondary battery with high capacity and high power.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Inventors: Jang-Weon Rhee, Inhwa Jung, Gwigwon Kang, Youngkeun Lee
  • Patent number: 7501174
    Abstract: Geotechnical article, and process for making it, the article having coefficient of thermal expansion less than about 150 ppm/° C. at ambient; resistance to acidic media greater than polyamide 6 resin and/or resistance to basic media greater than PET resin; resistance to hydrocarbons greater than that of HDPE; creep modulus of at least 400 MPa at 25° C., at 20% of yield stress load for 60 minutes (ISO 899-1); and 1 percent secant flexural modulus at least 700 MPa at 25° C. (ASTM D790); the article including a composition including (a) from about 1 to about 95% by weight of the composition of at least one functional group containing polymer or oligomer; and (b) from about 5 to about 99% by weight of the composition of at least one engineering thermoplastic, and optionally containing a filler and optionally containing an unmodified polyolefin, ethylene copolymer or ethylene terpolymer.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: March 10, 2009
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7387837
    Abstract: The present invention provides a thermoplastic polyurethane composition which comprises an ethylene-vinyl alcohol copolymer and/or a polyamide, and a thermoplastic polyurethane, in which the retention of melt tension thereof, when kept in a molten state at 220° C. for 1 hour, determined by the following equation (1), is not less than 10%. Retention of melt tension (%)=[Melt tension after being kept in a molten state/Melt tension before being kept in a molten state]×100??(1) The thermoplastic polyurethane composition of the present invention is excellent in production stability of a molded article, and can provide a molded article excellent in appearance because the progress of gelation thereof is suppressed even in a molten state.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: June 17, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshihiro Yamana, Hiroyuki Ono
  • Publication number: 20080026195
    Abstract: The present invention relates to a polyimide composite flexible board and a process for preparing the same. The process comprises sequentially applying polyamic acids each having a glass transition temperature of from 280 to 300° C., from 300 to 350° C., and from 190 to 280° C. after imidization on a metal foil, subsequently subjecting the polyamic acids to imidization into polyimide by heating, and then pressing the polyimide-containing metal foil with a metal foil under high temperature to produce a two-metal-side printed circuit flexible board. According to the present invention, it can obtain a polyimide composite flexible board having an excellent mechanical property, high heat resistance, and excellent dimension stability without using an adhering agent.
    Type: Application
    Filed: January 17, 2007
    Publication date: January 31, 2008
    Inventors: Kuen Yuan Hwang, An Pang Tu, Sheng Yen Wu, Te Yu Lin
  • Patent number: 7186362
    Abstract: A prosthetic medical device exhibiting improved wear resistance is fabricated by sealing at least one polyolefinic material in an airtight container and providing an inert atmosphere within the airtight container. The polyolefinic material is exposed to an irradiation source to yield a cross-linked irradiated polyolefinic material. At least one non-irradiated polyolefinic material is blended with the irradiated polyolefinic material, and the prosthetic medical device is formed from the blended material. Selectively cross-linked polymeric compositions may be created by blending a specific amount of cross-linked resins with a specific amount of uncross-linked resins then cured into a polymeric matrix whereby the desired degree or percentage of overall cross-linking is obtained. The polymeric material may then be formed directly into a finished article by injection molding the polymeric material.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: March 6, 2007
    Assignee: Howmedica Osteonics Corp.
    Inventors: Aiguo Wang, Aaron Essner
  • Patent number: 7138025
    Abstract: A method for manufacturing a bag for use in vacuum packaging comprises forming a first panel including a tray for retaining contents within the bag and a second panel. Optionally, the tray can include a plurality of ridges or protuberances for suspending contents such that liquid can collect in the tray. Each panel comprises a gas-impermeable base layer and a heat-sealable inner layer molded from melt-extruded resin. The first panel is overlapped with the second panel, and three of four edges of the panels are heated such that the inner layers bond at the heated edges. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: November 21, 2006
    Assignee: Tilia International, Inc.
    Inventors: Hongyu Wu, Charles Wade Albritton, David Brakes
  • Patent number: 7074292
    Abstract: A blade member manufacturing process using no mold and a developer quantity control blade manufacturing process using this blade member are disclosed in which a material for the blade member is extruded onto a charge control face face-transferring sheet in a uniform thickness, and solidified to form a layer, and the layer is cut into the shape of a blade member.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: July 11, 2006
    Assignee: Canon Kasei Kabushiki Kaisha
    Inventors: Toru Ishigaki, Mitsuru Honda, Kazuaki Iwata, Naohiko Nakano, Manabu Takashima, Satoshi Fukuzawa
  • Patent number: 6942749
    Abstract: A method of manufacturing a security item comprises extruding or casting a polymer plastics substrate and, during the forming process, introducing a security thread into the substrate. The security thread is embedded to different depths in the substrate so as to generate a windowed effect.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: September 13, 2005
    Assignee: De La Rue International Limited
    Inventors: Karen Cunningham, Jonathan Brian Marx
  • Patent number: 6911171
    Abstract: By achieving an extruded, foamed core formed from plastic material peripherally surrounded and integrally bonded with a plurality of cooperating synthetic, plastic, extruded, outer layers, a unique, multi-component, multi-layer synthetic closure is provided which may be employed as a bottle closure or stopper for any desired product, whether the product is a liquid, a viscous material, or a solid distributed in a bottle or container and dispensed through the open portal of the container neck. The present invention achieves a mass producible, resilient, synthetic bottle closure which is employable for any desired bottle, including wine. By employing the present invention, a multi-component or multi-layer synthetic closure is attained which possesses physical properties substantially equal to or better than the physical properties found in cork material, which has caused such cork material to be the principal closure material for wine bottles.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: June 28, 2005
    Assignee: Nomacorc LLC
    Inventor: Eduardo Lauer
  • Patent number: 6893707
    Abstract: Structured polyolefin coated substrates and processes for making the same are disclosed. A chill roll is used to impart a plurality of peaks which protrude outwardly from the polyolefin coating of the structured substrate. In addition, the chill roll surface is treated to impart a matte finish and thus to transfer a matte finish to the area surrounding the peaks of the polyolefin coating.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: May 17, 2005
    Assignee: Loparex, Inc.
    Inventors: LeRoy Herbert Keiser, Kurt Henry Mather
  • Patent number: 6841109
    Abstract: A support for an imaging material, which not only can give an imaging material and a print thereon having a high gloss appearance and being free of non-uniformity in gloss but also is improved in the property of peeling from a cooling roll and which has high stiffness and can be stably produced at a high speed, the support being a resin-coated-paper-based support for an imaging material, in which (1) each of a resin sheet on a side (front side) where an image is to be formed and a base paper has a multi-layered structure, (2) the base paper has a multi-layered structure, the resin sheet on the front surface is a polyolefin resin sheet and the paper layer constitution of the base paper is specified, or (3) the front resin sheet has a multi-layered structure constituted of an upper layer containing at least 50% by weight of a polyethylene resin having a density of at least 0.940 g/cm3 and a lower layer containing a largest amount of a polyethylene resin (b) having a density of less than 0.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: January 11, 2005
    Assignee: Mitsubishi Paper Mills Ltd.
    Inventors: Masayuki Tsubaki, Touru Noda, Tomoichi Morita, Massashi Kubbota
  • Patent number: 6780367
    Abstract: A method for preparing a concrete article comprised of concrete having therein a reinforcing fiber, where at least about 50 percent of the reinforcing fibers are frayed only at an end or ends of the reinforcing fibers, may be made by mixing concrete, water and a reinforcing fiber for a sufficient time to fray the ends of at least 50 percent of the fibers and curing the mixture to form the concrete article.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, Jr., Hari Reddy, Kwanho Yang, Sharon M. Allen, Ted A. Morgan
  • Patent number: 6767618
    Abstract: A multi-layered stretched resin film comprises a base layer (A) comprising more than 90 wt % of a polyolefinic resin and less than 10 wt % of an inorganic fine powder and/or an organic filler; and an amorphous resin-containing layer (B), comprising 0 to 85 wt % of a second polyolefinic resin, which may be the same or different than the first polyolefinic resin, and 15 to 100 wt % of an amorphous resin. The amorphous resin-containing layer (B) is disposed on at least one side of the base layer (A), and has a porosity of 5% or less. Such multi-layered stretched resin films are resistant to waving or curling caused by exposure to the vehicle component of offset printing inks during offset printing, and therefore have excellent printing properties.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: July 27, 2004
    Assignee: Yupo Corporation
    Inventors: Atsushi Ishige, Kazuhisa Kitamura
  • Publication number: 20040119192
    Abstract: The invention relates to a method for producing a touch-and-close fastener element (18) comprising a multitude of hook means (16), which are provided with a support (26) as one piece. In order to form said support (26), a plastic material in a free-flowing state is fed to a gap (22) located between a pressing device (24) and a shaping device (10) that is provided with cavities (14) for shaping the respective hook means (16). A support (26) having a small thickness can be obtained and/or the removal of the support (26) from the shaping device (10) is facilitated by feeding the plastic material together with the supporting part (32) into the gap (22), whereby the supporting part bears the support (26) between the pressing device (24) and the plastic material.
    Type: Application
    Filed: October 31, 2003
    Publication date: June 24, 2004
    Inventor: Jan Tuma
  • Patent number: 6673425
    Abstract: A multilayer optical body having improved dimensional stability is disclosed. The optical body includes an optical film, such as an oriented multilayer optical film, and a dimensionally stable layer, such as a transparent polycarbonate layer. In addition, in specific implementations, the invention includes an intermediate layer between the optical film and the dimensionally stable layer. Methods of making the optical body are also disclosed.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Andrew J. Ouderkirk
  • Publication number: 20030227106
    Abstract: The present invention is directed to a low-linting laminated nonwoven fabric comprised of a reticulated film layer and an associated absorbent layer, which is suitable for medical, hygiene, and industrial applications, wherein said nonwoven fabric performs to absorb liquids, such as human exudates, while significantly reducing the amount of particulates released. The reticulated film of the invention is comprised of a series or network of small, geometrically profiled, depressed areas, wherein the depressed areas of the film are able to collect liquids such as blood, and channel such liquids through openings in the film layer into the associated absorbent layer.
    Type: Application
    Filed: April 11, 2003
    Publication date: December 11, 2003
    Applicant: Polymer Group, Inc.
    Inventors: Charles Fuller, John Steffen, Nyle Bishop, David Bye
  • Patent number: 6656589
    Abstract: A polyamide resin pellet for a miniature part, comprising a polyamide resin (A) whose melting point as measured by DSC is in the range of 280 to below 330° C., which has an average volume of 0.001 to 21 mm3, the average volume determined by randomly sampling 50 pellets, measuring the weight and specific gravity of each of the pellets and dividing the weight by the specific gravity. The polyamide resin pellet exhibits low water absorption and is excellent in moldability, mechanical strength characteristics and heat resistance. Further, it has specified average volume, configuration, average diameter and average length, so that, in an injection molding, plasticization is smoothly effected to thereby enable obtaining a molded item or article which exhibits low dispersion of weight and strength and has excellent hue. The polyamide resin pellet is especially suitable for use in a molding material for forming miniature parts for motor vehicles and electrical or electronic equipments.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yoshimasa Ogo, Tadayoshi Shiomura
  • Publication number: 20030211284
    Abstract: A method of manufacturing a single use processing substrate includes the step of extruding a first layer having ridges and troughs between the ridges. The method further includes the steps of placing a second layer into the troughs while the first layer is pliant and compressing the pliant ridges so that the second layer is bound into the troughs.
    Type: Application
    Filed: June 5, 2003
    Publication date: November 13, 2003
    Inventor: Virginia D. Karul
  • Patent number: 6645411
    Abstract: In a process for the production of conducting wires coated with cross-linked polyethylene in which a granulate made of polyethylene is coated with a fluid cross-linking agent, the coated granulate is melted in an extruder and extruded onto the electrical conducting wire, and the extruded film is cross-linked by being heated to a temperature over the decomposition temperature of the cross-linking agent, a mixture of granulate, meal, or powder made of a polyethylene homopolymer and a polyethylene copolymer is coated with the cross-linking agent and stabilizer, with the portion of copolymer in the coating on the cable lying between 1 and 8 weight percent.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: November 11, 2003
    Assignee: Nexans
    Inventors: Franz Dänekas, Marc Strittmatter
  • Patent number: 6592791
    Abstract: A novel adhesion adjusting additive for semiconductive dielectric shields for electric power cables is disclosed. The additive comprises a compound with a carbon-oxygen dipole, and a molecular weight less than 20,000 daltons. The additive is blended with a base polymer and conductive carbon black to form the material for the semiconductive shield.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 15, 2003
    Assignee: General Cable Technologies Corporation
    Inventor: Mark Richard Easter
  • Patent number: 6569527
    Abstract: A method of producing a breathable film which comprises the steps of: (a) producing an inorganic filler by treating particles of an inorganic particulate material comprising an alkaline earth metal carbonate compound by reaction with a hydrophobising surface treatment agent comprising one or more aliphatic carboxylic acids having at least 10 chain carbon atoms to produce a hydrophobic coating on the particles under conditions such that the inorganic filler produced has a total surface moisture level comprising moisture adsorbed on the particles and trapped within the hydrophobic coating thereon of not greater than 0.1% by weight based on the dry weight of the inorganic particulate material; (b) producing a filled thermoplastic composition by mixing the inorganic filler produced in step (a) with a heated thermoplastic polymer; and (c) shaping the composition produced in step (b) by heat processing to form a film product.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: May 27, 2003
    Assignee: Imerys Minerals, Limited
    Inventors: Allison Anne Calhoun, Dickey S. Shurling, David A. Skelhorn, Deeba Marjan Ansari