Including Roller-type Shaping Surface (e.g., Calendering, Etc.) Patents (Class 264/173.1)
  • Patent number: 11329292
    Abstract: A method to produce a composite semi-finished product, having a continuous phase including at least one thermoplastic plastic and a dispersed phase made from at least one electrically conductive filler. The at least one thermoplastic plastic in form of fine particles is mixed with the at least one filler in the form of fine particles. In each case, at least 90% by weight of the particles of the at least one thermoplastic plastic and of the at least one filler are smaller than 1 mm. The mixture of the at least one thermoplastic plastic and the at least one filler is heated to a temperature greater than the melting temperature of the at least one thermoplastic plastic. The heated material is cooled to a temperature below the solidification temperature of the at least one thermoplastic plastic.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: May 10, 2022
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Lukas Kopietz, Thorsten Seipp, Sascha Berthold, Jens Burfeind, Damian Hintemann, Holger Wack
  • Patent number: 11141823
    Abstract: Disclosed are systems for applying materials to components. The system comprises a tool operable for transferring a portion of a material from a supply of the material to a component. A first portion of the tool may be configured for cutting along a side or edge of the portion of the material. A second portion of the tool may be configured for tamping, pressing, or pushing against the portion of the material to cause uncut sides or edges of the portion of the material attached to the supply of the material to be torn, severed, detached, or separated from the supply of the material.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: October 12, 2021
    Assignee: Laird Technologies, Inc.
    Inventors: Tsang-I Tsai, Yi-Shen Lin, Min-Wei Hsu, Chen-Xi Yu
  • Patent number: 9546308
    Abstract: The present invention relates to an easy, scalable method, relying on conventional and unconventional techniques, to incorporate tilt in the fabrication of synthetic polymer-based dry adhesives mimicking the gecko adhesive system. These dry, reversible adhesives demonstrate anisotropic adhesion properties, providing strong adhesion and friction forces when actuated in the gripping direction and an initial repulsive normal force and negligible friction when actuated in the releasing direction.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: January 17, 2017
    Assignee: The Administrators of the Tulane Educational Fund
    Inventors: Noshir Pesika, Keijia Jin
  • Patent number: 9005496
    Abstract: Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: April 14, 2015
    Assignee: Pall Corporation
    Inventors: Xuemei Liang, Mark Murla, Binbing Han, Donald Simonton, Richard Morris
  • Patent number: 8986587
    Abstract: A system for making PET objects including a means for reacting a first PET precursor and a second PET precursor to produce a PET melt; a means for flowing the PET melt to a valve having at least two outlets; a means for flowing the PET melt from at least one of the at least two outlets to at least one distribution manifold, each of the at least one distribution manifold having at least two distribution lines; a means for controlling individually the mass flow of the PET melt in each of the at least two distribution lines independently of the other of the at least two distribution lines; and a means for forming the PET objects from the PET melt.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: March 24, 2015
    Assignee: Chemlink Capital
    Inventor: Nicholas P. Barakat
  • Publication number: 20150038619
    Abstract: A self-supporting composite body comprising a substrate of discrete particles and a network of interconnected mycelia cells extending through and around the discrete particles and bonding the discrete particles together is characterized in being stiff and in having a density of greater than 18 pounds per cubic foot (pcf). The method of making the composite body includes compressing a mass of biocomposite material comprised of discrete particles and a network of interconnected mycelia cells in the presence of moisture into a compressed body having a density in excess of 18 pcf. Compression may take place batch wise. in a press or continuously between a pair of movable endless conveyors.
    Type: Application
    Filed: July 21, 2014
    Publication date: February 5, 2015
    Inventors: Gavin R. McIntyre, Greg Tudryn, Jeff Betts, Jacob Winiski
  • Patent number: 8920694
    Abstract: A material layering device may include a first pinning roller and a second pinning roller. A distance between the first pinning roller and the second pinning roller is less than a diameter of a substrate. The device also includes a return system, wherein the return system comprises a plurality of rollers. The device also includes a belt, which may have a first loop portion disposed between and protruding beyond the first pinning roller and the second pinning roller. The first loop portion also wraps about an intended substrate along an arc greater than about 180 degrees. The device further includes a feed portion coupled to the first loop and extending outwardly from the second pinning roller opposite the first loop and providing a surface upon which a sheet can be placed. Furthermore, the device also includes an adjustment mechanism coupled to one of the rollers.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: December 30, 2014
    Assignee: Gold Tip, LLC
    Inventor: Marvin Carlston
  • Publication number: 20140370319
    Abstract: A method of manufacturing a wood-based board (10). The method includes applying at least one first fibre mat (11) including a first mix comprising lignocellulosic particles and a binder on a carrier (13), applying a second fibre mat (12) including a second mix including cellulosic particles and a binder on said at least one first fibre mat (11), and pressing said at least one first fibre mat (11) into a base layer (14) and the second fibre mat (12) into a surface layer (15) simultaneously, thereby forming a wood-based board (10). Also, to such a wood-based board (10).
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: Georg VETTER, Niclas HÅKANSSON, Marcus BERGELIN, Hans PERSSON
  • Patent number: 8894901
    Abstract: A method of making a sheet of building material, useful for roofing or siding applications, and the sheet material made by such method. A mixture of a thermoplastic resin and mineral filler is prepared, the resin comprising about 10% to 40% by weight of the mixture and the filler comprising about 60% to 90% by weight. The mixture is mixed at a temperature above the melting point of the resin and is formed into a sheet at such temperature. The sheet is allowed to cool until the surface is at a temperature below the midpoint of the melting range of the thermoplastic resin, e.g. in the range of 210 to 220 degrees F. (99 to 104 degrees C.), for polyethylene, at which point it is strained by passing it through calendering rollers. The sheet material made by this process, having a high concentration of mineral filler, is fire resistant, durable, ductile, of moderate weight and resistant to weathering. It can be produced using relatively inexpensive manufacturing equipment.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 25, 2014
    Assignee: G.R. Green Building Products Inc.
    Inventors: Geoffrey F. Wensel, Robert W. Suggitt
  • Patent number: 8877105
    Abstract: A process for manufacturing an elastomeric tire component includes the steps of a) preparing an elongated element including a cross-linkable elastomeric material by feeding it to an extruding device having a plurality of units, each having a respective thermal inertia, and b) delivering the elongated element onto a building support, and further includes at least one non-productive step of c) submitting at least one of the units of the extruding device to a thermal transition selected from heating or cooling, substantially reducing the risk of scorching during the thermal transition from and to the non-productive step ranking the units according to their thermal inertia and heating the units starting with the top-ranked unit sequentially to the bottom-ranked unit to reach the respective working temperature or cooling the units starting from the maximum working temperature unit sequentially to the minimum working temperature unit to reach the respective non-working temperature.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: November 4, 2014
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Francesco D'Oria, Enrico Sabbatani, Maurizio Marchini
  • Publication number: 20140100328
    Abstract: The problem addressed by the invention lies in providing a method for producing an inorganic substance powder highly-oriented thin film sheet with which it is possible to produce a sheet of uniform thickness while preventing the generation of impurities, improving sheet surface properties, adjusting apparent specific gravity, and the like. The method for producing a thin film sheet comprises a step for preparing a predetermined inorganic substance powder, thermoplastic resin, and auxiliary agent, a step for exposing the starting materials mixed at a predetermined mixture ratio to high shear stress while kneading, a step for feeding the kneaded starting materials to a T die-type extrusion molding device and molding a sheet, and a step for adjusting the apparent gravity as desired by stretching under predetermined conditions.
    Type: Application
    Filed: May 18, 2012
    Publication date: April 10, 2014
    Applicant: TBM CO., LTD.
    Inventors: Yuichiro Sumi, Naoyuki Kawamata
  • Patent number: 8673440
    Abstract: A membrane comprises a sheet of expanded polytetrafluoroethylene. The sheet includes a first extrudate made from a first PTFE fine powder resin mixed with processing lubricant at a first lube rate. A second extrudate is made from the first PTFE fine powder resin mixed with processing lubricant at the first lube rate. The first and second extrudates combined into an integrated tape structure that is stretched in first and second directions. The sheet is porous and has a gas permeability of at least 0.1 CFM according to ASTM D737. The sheet has an average Mullen Hydrostatic Burst pressure in the range of 135 psi to 175 psi according to ASTM D751.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: March 18, 2014
    Assignee: BHA Altair, LLC
    Inventors: Gopakumar Thottupurathu, David Kazemi
  • Publication number: 20140037904
    Abstract: A method of making an absorbent structure having a three-dimensional topography includes placing at least a portion of the absorbent structure between opposed mold surfaces. At least one of the mold surfaces has a three-dimensional topography. The three-dimensional topography of the mold surface is imparted onto the absorbent structure so that the absorbent structure has a three-dimensional topography corresponding to the three-dimensional topography of the mold surface.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Andrew Thomas Baker, Theresa Michelle McCoy, Stephen Avedis Baratian, Charles Wilson Colman
  • Patent number: 8617445
    Abstract: The present invention provides a process for producing an oriented thermoplastic polyester resin sheet which is excellent in tensile strength, tencile modulas and heat resistance, and a light laminate-molded body using the same, which has a low linear expansion coefficient and is excellent in impact resistance, durability, easiness of handling, productivity, and others. A process for producing an oriented thermoplastic polyester resin sheet, which includes: pultrusion-drawing a thermoplastic polyester resin sheet in an amorphous state at a temperature from the glass transition temperature of the thermoplastic polyester resin ?20° C. to the glass transition temperature of the thermoplastic polyester resin +20° C.; and then drawing the resultant uniaxially at a temperature higher than the temperature for the pultrusion-drawing. A laminate-molded body, wherein a thermoplastic resin layer is laminated on each of the surfaces of the resultant oriented thermoplastic polyester resin sheet.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: December 31, 2013
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Shigeru Ogasawara, Hirotsugu Yoshida, Hisashi Eguchi, Ryuichi Matsuo
  • Patent number: 8591793
    Abstract: The invention relates to a press felt for use in the press section of a paper machine. Said felt comprises a nonwoven layer lying on one of its surfaces, the surface of said layer being connected and fixed to the felt by a thermoplastic binding material. According to the invention, the surface of the nonwoven layer is smoothed by the application of pressure from a smooth surface during the cooling of said layer surface from a temperature in excess of the melting temperature of the thermoplastic binding material to a temperature below the melting temperature. To manufacture the press felt, an untreated press felt, which contains the nonwoven layer and the thermoplastic binding agent is first produced, the thermoplastic binding agent being distributed in the nonwoven layer in the form of thermoplastic adhesive fibres and/or a thermoplastic adhesive component of bicomponent fibres.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: November 26, 2013
    Assignee: Ems-Chemie AG
    Inventors: Alfred Weiss, Klaus Bender, Jürgen Spindler
  • Patent number: 8585947
    Abstract: A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on fibers and on a crosslinkable resin, by continuous winding and superposition of several layers of a tape of reinforcement fibers embedded in a matrix based on a composition comprising a crosslinkable resin. The process comprises from upstream to downstream, the following steps: producing a rectilinear arrangement (12) of reinforcement fibers (11) and conveying this arrangement in a feed direction (F); degassing the arrangement (12) of fibers by the action of a vacuum (13); after degassing, impregnating said arrangement (12) of fibers under vacuum with said resin composition in the liquid state (17); passing the pre-preg thus obtained through a die (20) to make said pre-preg into the form of a tape (21) composed of reinforcement fibers (11) in their liquid resin (17) matrix, the thickness of said tape being less than 0.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 19, 2013
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Jean-Paul Meraldi, Antonio Delfino
  • Patent number: 8580174
    Abstract: Disclosed herein is a method comprising deforming an organic polymer composition at a temperature below a glass transition temperature of an organic polymer in the organic polymer composition; the deforming being conducted by an application of a shear force, an elongational force, a compressive force, or a combination comprising at least one of the foregoing forces; the forces being applied to the organic polymer composition as it is disposed between a first roll that comprises a rubber surface and a second roll that comprises a textured metal surface; the deforming producing a textured film having a ratio of texturing of about 0.5 to about 3; the textured film having a thickness of about 5 to about 75 micrometers and an average roughness of about 0.3 to about 6 micrometers on opposing surfaces of the film.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: November 12, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventor: Safwat Ebeid Tadros
  • Publication number: 20130277881
    Abstract: A method for manufacturing a light transmissive film having a cured resin layer with a fine concavo-convex structure on a surface of a base material film is provided. The method includes sandwiching an active energy ray-curable composition including a mold dissolving component between a mold having an inversion structure of the fine concavo-convex structure and the base material film, obtaining a light transmissive film in which a cured resin layer having the inversion structure of the mold transferred is formed on one surface of the base material film, and separating the obtained light transmissive film and the mold. Thus, it is possible to productively manufacture a light transmissive film, and to prevent the deposition of an attachment on the mold surface and the contamination of the mold surface. Moreover, a light transmissive film can be manufactured having excellent performances, such as antireflection properties.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 24, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Satoru Ozawa, Katsuhiro Kojima, Yusuke Nakai, Hiroshi Onomoto
  • 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: 8551574
    Abstract: The present invention relates to a process of manufacturing a stretch composite, said method comprising: a) providing a first substrate in a machine direction, wherein said substrate has opposing first and second surfaces; b) providing a gravure printing roll having an exterior surface that comprises one or more cells wherein at least a portion of the surface is relatively cool; c) depositing a molten, non-adhesive, elastomeric composition onto the exterior surface of the gravure printing device which comprises a gravure printing roll, wherein said composition is characterized as having a peel force of less than about 3 N/cm; d) causing said composition to be pushed into said cells; and e) contacting said first surface of said substrate with said gravure printing roll and substantially completely transferring said elastomeric composition from said cells of said exterior surface on said gravure printing roll to said first surface; wherein said process is substantially free of tackifier.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: October 8, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Fred Naval Desai, Urmish Popatlal Dalal, Mark William Hamersky, Steven Daryl Smith
  • Patent number: 8545746
    Abstract: A method of making a substrate having multi-layered structures thereon, the method comprising the steps of (a) applying a mold having an imprint forming surface to the substrate to form an array of imprint structures that projects from the substrate; and (b) applying a lateral force that is substantially normal to said projecting imprint structures to cause said imprint structures to move angularly towards said substrate and thereby form a pattern of multi-layered structures thereon.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: October 1, 2013
    Assignee: Agency for Science, Technology and Research
    Inventors: Tanu Suryadi Kustandi, Hong Yee Low, Isabel Rodriguez Fernandez
  • Patent number: 8518321
    Abstract: Biaxially-oriented nylon film according to the present invention is biaxially-oriented nylon film made from nylon. In the biaxially-oriented nylon film, an elongation ratio of the film in each of four directions (an MD direction, a TD direction, a 45 degree direction and a 135 degree direction) until a film rupture is 70 percent or more, the elongation ratio being measured in a tensile test (testing conditions: a sample width is 15 mm; a distance between gauge points is 50 mm; and a tensile speed is 100 mm/min), and a stress ratio A (?1/?2) between a tensile stress ?1 and a tensile stress ?2 in a stress-strain curve obtained in the tensile test of the film is 2 or more in each of the four directions, the tensile stress ?1 being a value at a point where the elongation ratio becomes 50 percent while the tensile stress ?2 being a value at an yield point.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: August 27, 2013
    Assignee: Idemitsu Unitech Co., Ltd.
    Inventor: Masao Takashige
  • Patent number: 8465759
    Abstract: A process for the preparation of a bioadhesive laminate comprising a hot-melt extruded reservoir layer and a hot-melt extruded backing layer is provided. The reservoir layer comprises a thermoplastic bioadhesive composition containing an active agent. An active agent-containing thermoplastic bioadhesive hydrophilic composition is hot-melt coextruded with a hydrophobic composition to form at least a bi-layered laminate. The hydrophilic composition and the hydrophobic composition have at least one polymer in common. In addition, the melt flow index of the hydrophobic composition is within 50% of the melt flow index of the hydrophilic composition. As a result, the laminate has a uniform transverse cross-section and/or a uniform longitudinal cross-section throughout a major of the length of the laminate. Moreover, when the laminate is divided into unit doses of approximately the same size, they have a high degree of content uniformity with respect to the active agent(s) present therein.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: June 18, 2013
    Assignee: Auxilium US Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Patent number: 8445102
    Abstract: According to various aspects, exemplary embodiments are provided of thermal interface material assemblies. In one exemplary embodiment, a thermal interface material assembly generally includes a thermal interface material having a first side and a second side and a dry material having a thickness of about 0.0005 inches or less. The dry material is disposed along at least a portion of the first side of the thermal interface material.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: May 21, 2013
    Assignee: Laird Technologies, Inc.
    Inventors: Jason L. Strader, Mark Wisniewski, Karen Bruzda, Michael D. Craig
  • Patent number: 8357455
    Abstract: The invention relates to the use of a molding composition which comprises at least 50% by weight of a copolyamide, which is composed of the following monomer combination: a) from 65 to 99 mol % of a substantially equimolar mixture composed of an unbranched aliphatic diamine having from 6 to 18 carbon atoms and of an unbranched aliphatic dicarboxylic acid having from 6 to 18 carbon atoms, ?where the mixture composed of diamine and dicarboxylic acid comprises an average of from 8 to 12 carbon atoms, b) from 1 to 35 mol % of a substantially equimolar mixture composed of a cycloaliphatic diamine having from 8 to 20 carbon atoms and of a dicarboxylic acid having from 6 to 18 carbon atoms, for production of a printable or printed item, such as a ski topcoat.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: January 22, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Franz-Erich Baumann, Roland Wursche, Harald Häger, Sonja Bollmann, Kirsten Alting
  • Publication number: 20130011669
    Abstract: Heat-sealable, oriented, multilayer films including i) a polyolefin core layer; and ii) a heat-sealable layer a blend of 10.0 wt % to 50.0 wt % of a propylene-based elastomer and 50.0 wt % to 90.0 wt % of a propylene-based polymer, wherein the heat-sealable layer includes less than 1.0 wt % ethylene homopolymer or ethylene-based copolymer and wherein the heat-sealable layer has a Haze of ?5.0 and a seal strength of ?2.00×102 g/2.54 cm at 82° C. (180° F.). In particular films, the heat-sealable layer has a Haze of ?5.0 and a seal strength of ?3.00×102 g/2.54 cm at 90° C. (194° F.). Methods of making such multilayer structures and articles made therefrom are also disclosed.
    Type: Application
    Filed: May 31, 2012
    Publication date: January 10, 2013
    Inventors: Pang-Chia LU, George F. Cretekos
  • Patent number: 8303748
    Abstract: Press roll for a laminating machine for producing a packaging material which comprises a carcass layer consisting of paper or carton, and which carcass layer exhibits crease lines, through holes, openings or slits, which carcass layer exhibits, on one of its sides, a barrier layer, a plastic lining which is arranged outside the barrier layer, and film of laminant thermoplast which is arranged between the carcass layer and the barrier layer, with the press roll exhibiting a circular-cylindrical jacket surface having a facing consisting of an elastic material. According to the invention, the facing comprises sections in the jacket surface, which sections exhibit local deformation ability in relation to the surrounding facing. The invention also relates to a method for producing packaging material and to packaging material which has been produced using this method.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: November 6, 2012
    Assignee: Tetra Laval Holding & Finance S.A.
    Inventor: Nils Toft
  • Publication number: 20120269466
    Abstract: Multi-layered thermoplastic films include intermittent stretched regions that are visually distinct from un-stretched regions. The stretched regions can be white, opaque, and non porous. The multi-layered thermoplastic films with visually-distinct stretched regions can be formed into bags for use as trash can liners or food storage. Additionally, methods of stretching thermoplastic films to create visually distinct stretched regions include incrementally stretching a plurality of film layers, at least one of which includes a thermoplastic material and a voiding agent.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 25, 2012
    Applicant: The Glad Products Company
    Inventors: Robert T. Dorsey, Michael G. Borchardt
  • Patent number: 8246886
    Abstract: A method and system for aligning nanotubes within an extensible structure such as a yarn or non-woven sheet. The method includes providing an extensible structure having non-aligned nanotubes, adding a chemical mixture to the extensible structure so as to wet the extensible structure, and stretching the extensible structure so as to substantially align the nanotubes within the extensible structure. The system can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers independently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemical mixture may be dispensed to wet the extensible structure to help in the stretching process.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 21, 2012
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Robert Braden, Anastasios John Hart, John Welch
  • Patent number: 8231816
    Abstract: A method of forming a medical wrap including a flexible, sheet-form substrate with a discrete medical function delivery region having a surface adapted to be placed against a patient's skin to provide a desired medical effect. The substrate carries a field of fibers exposed for engagement by an array of fastener elements. The fastener elements each have a respective stem extending integrally from a band of resin extending along the substrate. The fastener elements are constructed to snag the exposed fibers when the substrate is wrapped about a patient in an overlapping manner, securing the wrap about the patient with the medical function delivery region in a desired position. The wrap is configured for use as a hot or cold pack, a medical dressing, or drug delivery device.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: July 31, 2012
    Assignee: Velcro Industries B.V.
    Inventors: Howard A. Kingsford, Holly Isabelle, George A. Provost, William H. Shepard
  • Patent number: 8158218
    Abstract: Provided is a method for producing an optical film which suffers neither flatness deterioration nor film breakage and is free from problems concerning undulating undulation and partial light leakage. The process for optical film production comprises laminating a cellulose ester resin layer (A) to an acrylic resin layer (B) by coextrusion. The process is characterized in that the cellulose ester resin layer (A) contains 55 to 99 mass % cellulose ester resin and the acrylic resin layer (B) contains 55 to 99 mass % acrylic resin, that the web is conveyed while keeping the layer (A) and the layer (B) in contact with the surface of a first cooling roll and the surface of a second cooling roll, respectively, and that when the surface temperature of the first cooling roll and the surface temperature of the second cooling roll are expressed by Ta (° C.) and Tb (° C.), respectively, then the Ta (° C.) and Tb (° C.) satisfy the following relationship (1). (Ta?80)° C.<Tb(° C.)<(Ta?5)° C.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 17, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Rumiko Yamada, Atsuko Matsuda
  • Patent number: 8092731
    Abstract: The invention relates to a method for producing a thermoplastic plastic film. According to said method, the thermoplastic plastic is melted and transported in an extrusion installation comprising an extruder, an extrusion nozzle with a wide-slot delivery opening and a chill roll, which is fixed to a roll system and then leaves the delivery opening of the extrusion nozzle in the form of a flat melted web. Said melted web is then applied to the chill roll and is cooled. The invention is characterised in that it uses an extrusion installation, in which the distance between the delivery opening of the extrusion nozzle and the surface of the cooled roll does not vary by more than +/?50 ?m during the operating time. The invention also relates to a film of this type and to uses of the latter.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: January 10, 2012
    Assignee: Röhm GmbH
    Inventors: Claude Guenanten, Christoph Steinfels, Herbert Groothues, Christoph Krohmer, Helmut Haering, Detlef Birth, Christopher Neuroth, Michael Meier-Kaiser, Walter Meon
  • Patent number: 7998388
    Abstract: A thin, uniform membrane comprising polymeric fibrils or a combination of fibrils and particles, wherein the fibrils have randomly convoluted cross-sections, and a process for making the membrane are disclosed. The membrane may be on the surface of a substrate as part of a composite sheet, or as a stand-alone structure.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: August 16, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Anthony Marin, Larry R. Marshall, Amanda Dawn Miller
  • Publication number: 20110184365
    Abstract: An absorbing structure has a sequence of layers, including at least first and second outer layers with at least a liquid storage layer disposed therebetween. The layers are disposed on top of one another and form a layered structure. At least the liquid storage layer has a cellulose material, preferably cellulose fibers, and a super absorbing polymer SAP, preferably SAP particles and/or SAP fibers. The liquid storage layer uses at least less binder material than the other liquid storing plies of the absorbing structure. The liquid storing plies are adjacent to the liquid storage layer. Preferably, the liquid storage layer does not have binder material.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 28, 2011
    Inventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
  • Publication number: 20110104472
    Abstract: A membrane comprises a sheet of expanded polytetrafluoroethylene. The sheet includes a first extrudate made from a first PTFE fine powder resin mixed with processing lubricant at a first lube rate. A second extrudate is made from the first PTFE fine powder resin mixed with processing lubricant at the first lube rate. The first and second extrudates combined into an integrated tape structure that is stretched in first and second directions. The sheet is porous and has a gas permeability of at least 0.1 CFM according to ASTM D737. The sheet has an average Mullen Hydrostatic Burst pressure in the range of 135 psi to 175 psi according to ASTM D751.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Gopakumar Thottupurathu, David Kazemi
  • Patent number: 7931841
    Abstract: A microreplicated article is disclosed. The article includes an opaque web having first and second opposed surfaces. The first surface includes a first microreplicated structure having a plurality of first features. The second surface includes a second microreplicated structure having a plurality of second features. The first microreplicated structure and the second microreplicated structure retain registration within 100 micrometers.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: April 26, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: John S. Huizinga, Vincent W. King, John T. Strand, James N. Dobbs, Thomas B. Hunter, Samuel W. Hunter, Thelma E. Hunter, legal representative, William V. Dower, Daniel H. Carlson, Serge Wetzels, Gregory F. King
  • Patent number: 7927540
    Abstract: A method of making a composite filter media includes, in an exemplary embodiment, forming a nonwoven fabric mat that includes a plurality of synthetic fibers by a spunbond process, and calendaring the nonwoven fabric mat with embossing calendar rolls to form a bond area pattern comprising a plurality of substantially parallel discontinuous lines of bond area to bond the synthetic fibers together to form a nonwoven fabric, the nonwoven fabric having a minimum filtration efficiency of about 50%, measured in accordance with ASHRAE 52.2-1999 test procedure. The method also includes applying a nanofiber layer by electro-blown spinning a polymer solution to form a plurality of nanofibers on at least one side of the nonwoven fabric mat to form the composite filter media, the composite filter media having a minimum filtration efficiency of about 75%, measured in accordance with ASHRAE 52.2-1999 test procedure.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 19, 2011
    Assignees: BHA Group, Inc., E. I. duPont de Nemours and Company
    Inventors: Alan Smithies, Jack T. Clements, David Charles Jones, Hyun Sung Lim
  • Patent number: 7927521
    Abstract: According to the present invention, a cellulose acylate film having high thickness precision and no streaks can be formed by producing a film with a cellulose acylate resin by means of the polishing roller method, and a high-performance optical film, which is free from the retardation distribution, can be produced by subsequently stretching the cellulose acylate film thus obtained within a magnification range from 1 or more and 2.5 or less.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: April 19, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Otoshi, Akihide Fujita, Shinichi Nakai
  • Patent number: 7927528
    Abstract: A beaded preform includes a plurality of adjacently positioned beads for forming a plurality of voids in an engineered material. The beaded preforms may be comprised of a filaments (single strand of beads) and mats (two-dimensional and three dimensional arrays of beads). The filaments and mats may be coated to become tows and laminates, respectively, which may then be assembled into composite materials. The preforms may be produced using novel manufacturing apparatuses and methods, and incorporated into known manufacturing processes to produce porous structures, including stress-steering structures, in any material including metals, plastics, ceramics, textiles, papers, and biological materials, for example.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: April 19, 2011
    Inventor: Charles R. Owens
  • Patent number: 7922945
    Abstract: Arrangement for manufacturing a web-shaped packaging laminate, comprising an extruder arranged so as to extrude a film of polymer material down into a nip between a cooling roll and a counter-roll, and also means of introducing at least one other layer of the packaging laminate into the said nip for joining the film together with the layer. According to the invention, the arrangement comprises an arrangement for covering the cooling roll with a surface layer of a water-based composition comprising a dry matter content. The invention also relates to the method for manufacturing the web-shaped packaging laminate, in which the composition is transferred as a thin layer to the film of polymer material in the nip, while the film of polymer material is still hot.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: April 12, 2011
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Mats Bentmar, Mikael Berlin
  • Patent number: 7922959
    Abstract: A method of making a composite filter media includes, in an exemplary embodiment, forming a nonwoven fabric mat that includes a plurality of synthetic fibers by a spunbond process, and calendering the nonwoven fabric mat with embossing calender rolls to form a bond area pattern comprising a plurality of substantially parallel discontinuous lines of bond area to bond the synthetic fibers together to form a nonwoven fabric, the nonwoven fabric having a filtration efficiency of about 35% to less than 50%, measured in accordance with EN 1822 (1998) test procedure. The method also includes applying a nanofiber layer by electro-blown spinning a polymer solution to form a plurality of nanofibers on at least one side of the nonwoven fabric mat to form the composite filter media, the composite filter media having a minimum filtration efficiency of about 70%, measured in accordance with EN 1822 (1998) test procedure.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David Charles Jones, Hyun Sung Lim
  • Patent number: 7914723
    Abstract: A thermal bonding pattern for nonwoven fabric possessing improved abrasion resistance while retaining softness, comprising a basket-weave pattern or other pattern having a transition area (2) equal to at least 10% of bonding spot area (1) in FIG. 3, more preferably a transition area (2) equal to at least 50% of bonding spot area (1), and most preferably a transition area (2) equal to at least 100% of bonding spot area.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: March 29, 2011
    Assignee: Ahlstrom Corporation
    Inventors: Kyuk Hyun Kim, Valeria G. Erdos, Smita Bais-Singh
  • Patent number: 7897078
    Abstract: The present invention relates to a method of manufacturing a stretched mechanical fastening web laminate (1) comprising a thermoplastic web layer (13) having two major surfaces, one of the major surfaces bearing a multitude of male fastening elements (14) suitable for engagement with a corresponding female fastening material, and on its other major surface a fibrous web layer (11), said method comprising the steps of (i) providing the fibrous web layer (11) having an initial basis weight, (ii) passing the fibrous web layer (11) through a nip formed by two rolls (101), (103), one of them having cavities (120) that are the negatives of a plurality of male fastening elements (14), introducing a molten thermoplastic resin into the cavities (120) in excess of an amount that would fill the cavities (120) which excess forms the thermoplastic web layer (13), allowing the resin to at least partially solidify and stripping of a precursor web laminate (10) thus formed comprising the fibrous web layer (11) and the the
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: March 1, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Johann F. Petersen, Ralf G. Oertel, Ronald W. Ausen, Janet A. Venne
  • Patent number: 7811218
    Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: October 12, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Takayoshi Sano, Tadamasa Furuya, Takehiro Yamamoto, Satoru Nitta, Koji Mizunuma, Takashi Hirose
  • Patent number: 7807007
    Abstract: Methods of forming a sheet-form product can include: providing a forming surface having a multiplicity of inwardly extending forming cavities; forming a multi-layer sheet in the interior of which is a parting surface defined by materials of limited compatibility, material of the sheet lying on each side of the parting surface having peelable tensile strength; pressing the multi-layer sheet against the forming surface to cause the multi-layer sheet to substantially conform to and fill the cavities; and peeling the multi-layer sheet apart at the parting surface, whereby material directly engaging the forming surface defines a sheet-form member having a multiplicity of hollow formations.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: October 5, 2010
    Assignee: Velcro Industries B.V.
    Inventors: Ernesto S. Tachauer, Peter Iannazzi, Christopher M. Gallant, Mark A. Clarner
  • Patent number: 7794638
    Abstract: Method and apparatus for making fastener products (117) having molded projections (110) or other molded features carried on a surface (130) feature a transfer device (135) having an outer surface with at least one transfer area (H) relatively raised with respect to another area (L) of the outer surface of the device.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: September 14, 2010
    Assignee: Velcro Industries B.V.
    Inventor: William P. Clune
  • Publication number: 20100215902
    Abstract: A white coated polyester film is provided which has excellent adhesion to the ethylene-vinyl acetate (EVA) typically used as an encapsulation material in solar modules. The good adhesion properties are achieved with a polymeric coating which includes at least one polyurethane and a crosslinker.
    Type: Application
    Filed: April 2, 2009
    Publication date: August 26, 2010
    Inventors: Thorsten Kiehne, Masato Fujita
  • Patent number: 7754117
    Abstract: The present invention enables an automatic roll gap adjustment, thereby facilitating operations at a set-up or when changing forming conditions. Specifically, one embodiment of the present invention controls a sheet take-off speed (a roll rotation speed) in accordance with a deviation of a measurement value from a set value of a roll gap under a constant pressing load control.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: July 13, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Koji Mizunuma, Yasutaka Matsumura
  • Patent number: 7754116
    Abstract: An sheet forming apparatus selectively uses two control modes: a constant roller gap control mode where a roller gap is controlled by a roller gap adjustment means so that the roller gap converges a predetermined control target value; and a constant pressing load control mode where the roller gap is controlled by the roller adjustment means so that a pressing load converges a predetermined control target value.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: July 13, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Koji Mizunuma, Tomonori Yamaguchi, Takehiro Yamamoto, Tomokazu Abe
  • Patent number: 7727439
    Abstract: A method for making a printing blanket having an outer lithographic layer and at the back, on the side opposite to the lithographic layer, a layer made of polymer material, entails providing polymer material that can be rectified, and then rectifying the polymer material to help control a thickness of the blanket. The invention is useful in the field of printing machines.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 1, 2010
    Assignee: Macdermid Graphic Arts SA
    Inventors: Jean-Pierre Moscato, José Risquez, Denis Hertzog, Jerzy Kuczynski