Treating Between Rollers (e.g., Calendering, Etc.) Patents (Class 427/365)
  • Patent number: 7378130
    Abstract: The present invention is directed to a method for making a graphically-printed component for an absorbent disposable article. The method comprises providing a molten polymer by feeding polymer chips into an extruder and melting the polymer chips. The molten polymer is extruded in the form of a thermoplastic polymer film onto a provided nonwoven fabric in an in-line process, in which the film has a basis weight of about 10 gsm, to provide a backsheet comprising the film and the nonwoven fabric. The backsheet on the film is graphically printed with printing means to provide a graphically printed backsheet. The graphically printed back sheet is wound into a roll good, or an absorbent core is positioned between it and a liquid permeable topsheet to provide an absorbent disposable article.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: May 27, 2008
    Assignee: Polymer Group, Inc.
    Inventors: Nicte Coronado, Fermin Ruiz, Jorge Santisteban
  • Patent number: 7374796
    Abstract: A filter medium for use in particulate filtering applications is disclosed. The filter medium is formed from a substrate capable of retaining the desired physical structure of the filter medium under the conditions of the filtering application, including temperature. A polyimide based stiffening agent adapted for treating the substrate is also provided.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: May 20, 2008
    Assignee: BHA Group, Inc.
    Inventor: Alan Smithies
  • Publication number: 20080107915
    Abstract: The present invention is directed to a method of polishing a minimum spangle aluminum-zinc alloy hot-dip coating applied to sheet steel to provide a polished hot-dip coating having a continuous, consistent surface appearance suitable for use in an unpainted condition.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 8, 2008
    Inventors: Henry N. Hahn, Ronald J. Dutton, Larry F. Crawford
  • Patent number: 7220453
    Abstract: A wet process for manufacturing a cloth prepreg with a uniform fiber distribution and large cover factor comprises impregnating a woven fabric with a diluted resin and drying, which fabric has a number of crossing points of warp and weft in the range of 2,000 to 70,000/m2, which process further comprises at least one of the steps (A) and (B), namely (A) a step of distributing a line-shaped binder on the fabric to fix the yarn flatness prior to impregnating the fabric with a resin diluted with a solvent, at least 80% of which solvent is a nonsolvent of the binder and, (B) a step of calendering the woven fabric after drying.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: May 22, 2007
    Assignee: Toray Industries, Inc.
    Inventors: Akira Nishimura, Kiyoshi Homma, Ikuo Horibe
  • Patent number: 7211293
    Abstract: A closed-loop system and process is used for applying fire retardant chemicals to fibers. Fibers are preferably positioned in a vessel such as a dye machine which circulates the fire retardant chemicals. After absorption of the fire retardant composition, non-absorbed fire retardant chemicals are recovered and re-used on subsequent batches of fibers. Recovery can be achieved by directing the non-absorbed fire retardant composition into a second dye machine containing additional fibers, or by extracting the fire retardant composition by centrifugation or other means, or by a combination of the two processes. The process is environmentally friendly, and allows for higher throughput on impregnating fibers with fire retardant chemicals.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 1, 2007
    Assignees: Gaston International, Inc., Tintoria Piana U.S., Inc.
    Inventors: Andrea Piana, James L. Gaston
  • Patent number: 7208068
    Abstract: A dull coated printing paper that is bulky (low in density) having a density of 0.90 to 1.15 g/cm3 and yet offers excellent pliability, superior surface smoothness, high degree of print gloss and minimal small-scale gloss variations in the image area are obtained by forming a coating layer comprising a pigment and an adhesive on a base paper which contains an organic compound having an action to inhibit binding between pulp fibers and then carrying out calender treatment at a line pressure for the treatment of 50 to 150 kg/cm.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: April 24, 2007
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Hideaki Nisogi, Jun Makihara, Yukiko Ohira, Hirokazu Morii
  • Patent number: 7081305
    Abstract: A paper coating slip containing a mineral pigment and an aqueous polymer dispersion as a binder, wherein the polymer dispersion is obtainable by emulsion polymerization of ethylenically unsaturated compounds (monomers) and the paper coating slip gels at above 35° C., i.e. the viscosity of the paper coating slip at from 35 to 60° C. is at least twice the viscosity at 30° C.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: July 25, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Distler, Volker Schaedler, Titus Leman, Thomas Steinmacher
  • Patent number: 6942897
    Abstract: A nanoparticle barrier-coated substrate is prepared by mixing pigment nanoparticles, a binder and a liquid carrier to form a coating solution, applying the coating solution onto the substrate and drying the coating solution to form the barrier coating on the substrate. The pigment nanoparticles can be chosen from talc, calcium carbonate, clay, silica and plastic and the substrate can be a cellulosic material or an inorganic material. If the substrate is initially provided with large pores, a precoating can be applied to the substrate prior to the application of the pigment nanoparticles thereto.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: September 13, 2005
    Assignee: The Board of Trustees of Western Michigan University
    Inventors: Margaret K. Joyce, Thomas W. Joyce
  • Patent number: 6916583
    Abstract: A method for printing an image on a surface of a substrate having a surface finish defined by a gloss, the method comprising: printing an image on the surface of the substrate, such that image areas thereof have a thickness, when fixed to the substrate and dry, of less than about 6 micrometers of a thermoplastic material; and smoothing the surface of at least a portion of the thermoplastic material.
    Type: Grant
    Filed: February 6, 2000
    Date of Patent: July 12, 2005
    Assignee: Hewlett-Packard Indigo N.V.
    Inventors: Benzion Landa, Ishaiau Lior, Itzhak Ashkenazi, Avner Schneider
  • Patent number: 6893682
    Abstract: A method for the application of liquid through viscid medium onto the surface of a pre-dried material web including the steps of applying a viscid medium to at least one side of the material web, routing the material web through a press nip and supporting the material web substantially without free draw.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: May 17, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Gunter Halmschlager, Herbert Haunlieb, Wilhelm Gansberger, Erich Brunnauer, Stefan Lehner-Dittenberger, Martin Vogt
  • 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: 6881450
    Abstract: The invention is directed to a method of magnetically linking a ferromagnetic object to a partially magnetized coating material made by applying a coating to a surface of a continuously-moving medium including the steps of providing a coating material by mixing a binder material suitable for being spread substantially and regularly over the surface and a ferromagnetic component, the binder material being a hot melt adhesive; providing a continuously-moving medium having a top surface to be substantially coated, the surface capable of receiving a substantially and regularly spread coating material; passing the coating material and continuously-moving medium between rollers to form a substantially constant thickness of the coating material substantially covering the top surface and allowing the coating material to set to form the coated medium as a magnetizable component, wherein the medium that is coated is one of a paper, a card, wallpaper, a flexible plastic sheet, a rigid plastic sheet, and walls; partially
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: April 19, 2005
    Inventor: Claude Texier
  • Patent number: 6881438
    Abstract: A process for production of a composite porous film wherein a porous support, of which both sides have been coated with a solution (dope) of an organic polymer compound in a water-soluble organic solvent to form a coated film, is passed through an air gap step and conveyed into a coagulating bath comprising water or a mixture of water with the same solvent as the organic solvent, and is then immersed in the coagulating bath so that the coated film on both surfaces of the porous support directly contact the coagulating bath for coagulation, and is then washed and dried. This production process is suitable for production of non-aqueous secondary battery separators, and yields non-aqueous secondary battery separators with good handling properties and at low cost, whereby the ion permeability, adhesion with electrodes and electrolyte solution retention can be strictly controlled.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 19, 2005
    Assignee: Teijin Limited
    Inventors: Takahiro Daido, Satoshi Igarashi, Satoshi Nishikawa, Hiroyuki Honmoto, Hiroyoshi Minematsu, Youji Yanagi, Yasushi Kitagishi
  • Patent number: 6843874
    Abstract: This invention relates to a non-contact coating method for producing a substantially continuous coating and articles constructed therefrom. This invention further relates to a non-contact slot coating method for producing a variety of coatings and laminations. This invention particularly relates to a method of coating a non-porous substrate including film, foil and paper with a molten thermoplastic composition which reduces streaking caused by particles such as impurities, fillers and superabsorbent polymers. This invention further relates to thermoplastic compositions useful in the present non-contact coating method.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: January 18, 2005
    Assignee: H.B. Fuller Licensing & Financing Inc.
    Inventor: Annegret Janssen
  • Patent number: 6841190
    Abstract: An antisoiling hardcoated film comprising a substantially transparent substrate, a hardcoat layer comprising inorganic oxide particles dispersed in a binder matrix, and an antisoiling layer comprising a perfluoropolyether. The antisoiling layer can be very thin, thus reducing the cost of the perfluoropolyether. The film has very good scratch, smudge and glare resistance and very good interlayer adhesion and durability. The film can be in the form of a single flexible substrate or a stack of such substrates. The film or stack can be sized to fit the display screen of an electronic display device such as a personal digital assistant or cell phone.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: January 11, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Junkang J. Liu, Bettie C. Fong, Bruce D. Kluge
  • Patent number: 6827785
    Abstract: In a device for depositing coating material with the manufacture of coated and/or impregnated sheet formations the thickness of the coated sheet formation is monitored with two metering rollers (11, 13) rotating against the sheet formation. The distance measurement between the contact surfaces (12, 14) of the metering rollers (11, 13) is carried out by way of measuring surfaces (16, 18) concentric to the metering rollers (11, 3) which have a smaller diameter (d1) than the contact surfaces (12, 14).
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: December 7, 2004
    Assignee: Solipat AG
    Inventor: Andreas Ulli
  • Publication number: 20040191416
    Abstract: Process for application of a coating medium on a traveling material web that is one of paper and cardboard, the coating medium including at least one of a pasty medium and a liquid medium, wherein the process includes forming a material web in a wet section of a machine for one of paper and cardboard and guiding the material web which is still wet with a traveling, endless, carrier belt during application of a coating medium. The application of the coating medium includes transferring the coating medium from a roll-coating mechanism to at least one transfer belt onto the still wet material web. The coating medium is transferred from a surface of the at least one transfer belt moving in a direction of travel of the material web. The at least one transfer belt is a traveling, endless, air-permeable transfer belt which is guided by rolls. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 30, 2004
    Applicant: VOITH SULZER PAPIERTECHNIK PATENT GmbH
    Inventors: Peter Gallina, Volker Schmidt-Rohr, Karl Stelner, Michael Trefz
  • Publication number: 20040180135
    Abstract: A heating roller includes a magnetic flux generation mechanism provided in a plurality of layers coaxially around the axis of a roller in the roller capable of being supported rotatably, and a control device capable of independently controlling the layers of the magnetic flux generation mechanism.
    Type: Application
    Filed: March 8, 2004
    Publication date: September 16, 2004
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Hiromichi Ito, Katsunori Horiuchi
  • Patent number: 6783846
    Abstract: The present invention relates to use of an alkylhydroxyalkyl cellulose, which has alkyl groups having 1-3 carbon atoms and hydroxyalkyl groups having 2-3 carbon atoms, is free from hydrophobically modifying alkyl groups having at least 4 carbon atoms and has a turbidity point of 50-95° C. The amount of carboxymethyl cellulose constitutes up to 1200 percent by weight of the amount of alkylhydroxyalkyl cellulose. An aqueous coating composition containing a combination of alkylhydroxyethyl cellulose and carboxymethyl cellulose is also described.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: August 31, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Kerstin Larsson, Erland Hermansson
  • Patent number: 6733833
    Abstract: A papermaking belt comprises a reinforcing element and a resinous framework joined together. The resinous framework is formed by a plurality of resinous beads which mutually contact or cross-over. Super-knuckles extending outwardly from the reinforcing element are formed at points of contact. A preferred continuous process for making the belt comprises extruding, in a pre-selected pattern, a plurality of beads of a resinous material onto the forming surface thereby forming the resinous framework thereon, joining the resinous framework and the reinforcing element together, and then solidifying the resinous framework. The resinous material may comprise at least two chemically-active materials capable of cross-linking upon contact.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: May 11, 2004
    Assignee: The Procter & Gamble Company
    Inventor: Robert Stanley Ampulski
  • Patent number: 6713424
    Abstract: The present methods make fluid diffusion layers having reduced surface roughness. The methods used for adhering the loading material to the substrate surface can reduce the average surface roughness of the fluid diffusion layers, thereby reducing leaks in and damage to ion exchange membranes. When fluid diffusion layers and electrodes having reduced surface roughness are employed in membrane electrode assemblies, better reliability and performance are obtained. A method of calculating the surface roughness of a fluid diffusion layer may be used.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 30, 2004
    Assignee: Ballard Power Systems Inc.
    Inventors: Jürgen Stumper, John Robert Gordon, Herwig Robert Haas, Kelvin Keen-Ven Fong
  • Patent number: 6703071
    Abstract: An absorbent article containing a composite mixture of absorbent macroporous particles and binder particles. Preferably, the absorbent macroporous particles are those having a macroporous structure which allow for the rapid flow of liquid therein, e.g., aerogels, xerogels, cryogels, or mixtures thereof. The absorbent articles produced thereby are preferably thin and lightweight, but maintain an ample rate of absorption allowing for a more rapid uptake of higher volumes of liquids.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 9, 2004
    Assignee: Koslow Technologies Corporation
    Inventor: Evan E. Koslow
  • Patent number: 6699347
    Abstract: The present invention provides a process comprising the steps of (a) applying less than about 0.1 grams per square meter (gsm) of a release agent to a transfer surface, wherein the release agent is selected such that a test sample of the release agent having a concentration at or above its critical surface tension concentration, has a surface tension of less than about 50 dyne/cm or forms a contact angle with the material of the transfer surface of less than about 120°; (b) applying an adhesive to the transfer surface; and (c) transferring the adhesive from the transfer surface to a material web. Preferred embodiments are provided where the transfer surface is metals, polymers, elastomers, ceramics, wood, or combinations thereof and the release agent has the formula: X—CF2O—(C2F4O)p—(CF2O)q—CF2—X. Additional embodiments are provided to continuous and intermittent processes.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: March 2, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Mary Ruth Lehrter, Steven Lee Barnholtz, James Michael Singer, Glenn David Boutilier, Andrew Julian Wnuk, Dean Arthur Zimmerman, Timothy Jude Lorenz
  • Publication number: 20040013807
    Abstract: The present invention relates to a method of treating fabric suitable for manufacturing filter bags, the method including the step of: applying a coating material to the fabric configured as seamless tubing to form a coating of said coating material on an outside surface of the seamless tubing, thereby improving the filtering charateristics of the fabric.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 22, 2004
    Inventors: Don Chase, Mark DeRavin, Christos Skourtis, Niall Finn
  • Patent number: 6676996
    Abstract: In a process for forming a fluoroelastomer composite material for use in preparing an image member containing a substrate, a curable fluorocarbon elastomer is combined with preformed polysiloxane particles in an organic solvent, thereby forming a composite mixture. Milling the composite mixture produces a uniform coating dispersion of the fluoroelastomer composite material in the organic solvent.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: January 13, 2004
    Assignee: NexPress Solutions LLC
    Inventors: Jerry A. Pickering, Stephen V. Davis, Nataly Boulatnikov
  • Patent number: 6645559
    Abstract: The present invention provides a method for trimming a resin film which can recycle lug portions of the resin film after trimming, can easily trim the resin film even when the resin film is made of resin which becomes fragile by cooling, and enhance the use efficiency of a laminated sheet by making resin coated portions disposed at both sides of the laminated sheet thin. At the time of coating molten resin at least on one surface of a substrate to form a resin film after making the molten resin pass between coating rolls, the lug portions of the resin film are trimmed before the lug portions of the resin film are cooled.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: November 11, 2003
    Assignees: Toyo Kohan Co., Ltd., Toyo Seikan Kaisha, Ltd.
    Inventors: Akira Kobayashi, Kouji Yamada, Yuji Funagi, Narimasa Maida, Hiroshi Inazawa, Takuji Nakamura, Noriaki Kaguma
  • Patent number: 6641869
    Abstract: An active material slurry 12a obtained by a mixing a powder of the active material with a binder and a solvent for the binder is heated to a predetermined temperature inside a slurry reservoir 20, and the heated active material slurry 12a is coated and adhered to an electrically conductive core body 11. The resulting body is then fed inside a drying furnace 28 to dry the coated and adhered active material slurry 12a by heating, and is rolled to a predetermined thickness by passing it through a pair of rolling rolls 29, thereby obtaining an electrode for alkaline batteries comprising an active material layer 12 on the both sides of the electrically conductive core body 11.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: November 4, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasuhiko Ikeda, Masao Takee, Teruhiko Imoto, Masao Inoue, Atsutoshi Ako, Yasumasa Kondo
  • Patent number: 6623797
    Abstract: In a preferred embodiment, the present invention is an apparatus and a method for coating both surfaces of a continuous processing aluminum strip by extruding thin polymeric film onto the aluminum strip. Generally, the aluminum strip is uncoiled, passed through a preheating unit, two extrusion heads, a post-heater, an air quench, a lubricator, and then it is recoiled.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 23, 2003
    Assignee: Alcoa Inc.
    Inventor: James T. Avalos
  • Publication number: 20030121634
    Abstract: The invention teaches a method of manufacturing a high bulk, high gloss paperweb using a supercalender operation. A paperweb surface is coated with a plastic pigment. The paperweb is run through a multi-nip calender device wherein the nip load of the paperweb is maintained at a load of about 1,000 pounds per linear inch at each nip. The temperature of the hard rolls are about 450 degrees Farenheit or less.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 3, 2003
    Inventors: David B. Cason, S. Craig Petro, Stig V. Renvall, Bhima Sastri
  • Publication number: 20030124258
    Abstract: A microwave susceptible insulated packaging material includes a thermal insulating layer, which may be a fiberfill batt. The insulating layer is laminated to at least one layer of a co-extruded film which has been coated on one surface with a microwave susceptible material, such as aluminum or aluminum coated with a food-safe contacting polymer sealant. The packaging material can be used to form a container, such as a pouch, or as a label or as a lining for a container. The packaging material may be coated also with a printable coating material.
    Type: Application
    Filed: October 15, 2002
    Publication date: July 3, 2003
    Inventors: Thomas E. Benim, Jeffrey A. Chambers, Steven R. Cosentino, Peter R. Hunderup, Susan G. Chamberlin, Ross A. Lee, Susan D. Procaccini, Donna L. Visiolo
  • Publication number: 20030113458
    Abstract: A method of wetting a web of material is described, which in general provides for applying a wetting solution to the web, and passing the web of material between a set of press rolls. The wetting solution may be applied at an add-on greater than 25%, and the web may travel at a speed of at least 60 meters per minute.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 19, 2003
    Applicant: Kimberly Clark Worldwide, Inc.
    Inventors: Daniel Hoo, Brian James Gingras, Clayton Taylor Gann, Robert Eugene Krautkramer, Anthony Mark Gambaro, James Monroe Perkins
  • Patent number: 6534132
    Abstract: A method is disclosed for producing a printing ink decorated packaging material. The packaging material heat sealable outer coatings. One or both sides of the packaging material are subjected to corona discharge surface treatment to increase the surface tension. Printing is applied to the treated surface. The packaging material then passes the nip between heated rollers in order to reduce the surface energy of the outer plastic layers. Subsequently, a surface treatment of hydrogen peroxide is applied to the packaging material to sterilize the surface.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: March 18, 2003
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Rolf Lasson, Christer Karlsson, Kaj Johansson, Zoltan Pusztai
  • Patent number: 6531183
    Abstract: A method of forming a finished paper having high gloss while maintaining high bulk, comprising applying on a surface of a base stock at least one layer of a coating formulation comprising a particulate plastic pigment; and passing the base stock through a multi-nip calender device maintained at relatively low roll temperature and nip pressure. The product formed using this coating formulation and process is of high gloss quality, yet maintains a relatively high bulk, in comparison to high gloss papers produced by conventional methods.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: March 11, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: David B. Cason, S. Craig Petro, Stig V. Renvall, Bhima S. Sastri
  • Patent number: 6506438
    Abstract: Electronic devices such as transistors and diodes are manufactured by ink-jet printing using a transfer member. These electronic devices are used in addressing an electronic display.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 14, 2003
    Assignee: E Ink Corporation
    Inventors: Gregg M. Duthaler, Peter T. Kazlas, Paul Drzaic
  • Patent number: 6506449
    Abstract: A simple yet effective method and apparatus produce a web suitable for treatment of water as a static filtration media, e.g. to remove chlorine and lead from water in contact with the media. A web is coated with a coating composition that facilitates treatment of water and includes a binder, and the web is compressed in one dimension about 25-75% (e.g. 40-60%) so as to make the void size distribution substantially more uniform. The compression is substantially maintained until the binder substantially cures so that the coated final web produced has a second void size distribution more uniform than the first void size distribution, e.g. the coated final web having void volumes with a mean value of about 6-7×10−8 liters and/or an RDV/BV ratio of at least 0.4, and a porosity of greater than 90%.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: January 14, 2003
    Assignee: Innova Pure Water Inc.
    Inventors: Bradley D. Mierau, Henry C. Reid, John E. Nohren, Jr., Gerald J. Larsen
  • Patent number: 6495214
    Abstract: A method of and apparatus for producing a transparent film or a transparent layer with a surface structure at least on one side and, on the other side, in register with said surface structure, a structural or 2-dimensional pattern, operate with at least two rotating rollers and layer application between them and curing of a structural layer. By means of a third rotating application roller, a further layer can be applied in register to the rear side of the structural layer and can be cured. The rollers and roller nips can be set very accurately by suitable devices. The rotation of all the rollers is controlled by a master drive.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: December 17, 2002
    Assignee: Emtec Magnetics GmbH
    Inventors: Volker Prix, Reinhold Nentwich
  • Patent number: 6495206
    Abstract: A method of extruding a foamed plastic layer into a fabric carrier that relies on the use of dual expanding agents, a dispersed gas generant and thermally expandable micro-spheres. Upon deposit of the foaming melt onto the carrier, the composite textile is passed through a rotating gate wherein the expanding foam is contained between a roller and the carrier. Penetration and engagement of the foaming matrix with the carrier is thereby enhanced. The resulting product is resilient with good compression rebound.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: December 17, 2002
    Assignee: Morbern, Inc.
    Inventor: Dilipkumar R. Desai
  • Patent number: 6465041
    Abstract: A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 15, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph William Frisk, Wayne Meredith Boand, James Michael Larson
  • Patent number: 6461673
    Abstract: A sole for a boot and the boot incorporating the sole. The sole provides the wearer of the boot with a level of protection from explosive devices triggered by the wearer stepping on or near the explosive device. The sole includes at least one layer of corrugated blast-resistant material. The corrugations provide channels that effectively channel blast gases generated by the explosion of the explosive device sidewardly and so away from the foot of the wearer of the boot. The sole further includes layers of blast-resistant material and a cocoon of material is also provided throughout the upper of the boot to provide a level of protection to the remainder of the wearer's foot.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 8, 2002
    Assignee: BFR Holdings Limited
    Inventor: Guy Andrew Vaz
  • Publication number: 20020106447
    Abstract: A method for a binder-free manufacturing a nanostructured porous film, e.g.
    Type: Application
    Filed: November 26, 2001
    Publication date: August 8, 2002
    Inventors: Henrik Lindstrom, Sven Sodergen, Sten-Eric Lindquist, Anders Hagfeldt
  • Patent number: 6403159
    Abstract: A laminate film has a composite structure and a bonding surface that eliminates the formation of air bubbles during the lamination process. A process for forming the laminate film includes spreading a PET film with an adhesive, drying the adhesive, and spreading a PE film, which is in a melted phase, on the dried adhesive, to form a composite film. An EVA fluid is spread on the PE film of the composite film, and the composite film with the EVA fluid is passed between first and second rollers. The first roller has a pockmarked surface and contacts the EVA fluid, thereby forming a pockmarked surface on the EVA fluid.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: June 11, 2002
    Assignee: Royal Sovereign Korea, INC
    Inventor: Takwan Lim
  • Publication number: 20020041925
    Abstract: The invention generally provides a method of coating a material, the method including the following steps: (a) forming a generally elongate coating structure (15), the coating structure having an internal cavity (17) extending at least substantially along its length, and wherein the internal cavity of the coating structure is capable of receiving a core material (21); (b) inserting a core material (21) into the internal cavity (17) of the coating structure (15); (c) compressing the coating structure at a first location (44) along its length so as generally to form a seal at that location; and (d) compressing the coating structure at a second location along its length (45).
    Type: Application
    Filed: January 23, 2001
    Publication date: April 11, 2002
    Applicant: SCIENTEC RESEARCH PTY. LTD
    Inventors: Michael Francis O'Donoghue, James Allan Morris
  • Patent number: 6344241
    Abstract: A parpermaking belt comprises a reinforcing element and a resinous framework joined together. The resinous framework is formed by a plurality of resinous beads which mutually contract or cross-over. Super-knuckles extending outwardly from the reinforcing element are formed at points of contact. A preferred continuous process for making the belt comprises extruding, in a pre-selected pattern, a plurality of beads of a resinous material onto the forming surface thereby forming the resinous framework thereon, joining the resinous framework and the reinforcing element together, and then solidifying the resinous framework. The resinous material may comprise at least two chemically-active materials capable of cross-linking upon contract.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: February 5, 2002
    Assignee: The Procter & Gamble Company
    Inventor: Robert Stanley Ampulski
  • Publication number: 20010031312
    Abstract: A paper-based sheet for wallcoverings that is made in a single pass on a standard paper making machine is described. The sheet has a print side and a barrier side and is made from softwood pulp in an amount of about 15% to about 40% by dry weight; hardwood pulp in an amount of about 30% to about 55% by dry weight; and, mineral filler in an amount of about 15% to about 30% by dry weight. A first coating is applied to the print side of the sheet in an amount of about 5 to about 20 gm/m2 dry weight. A second coating is applied to the barrier side of the sheet in an amount of about 2.5 to about 10 gm/m2 dry weight. The advantage is a strong, durable, alkaline wallcovering that is less expensive to produce, and provides a smooth print surface.
    Type: Application
    Filed: May 30, 2001
    Publication date: October 18, 2001
    Inventor: Harold Freeburn
  • Patent number: 6291127
    Abstract: The invention relates to an imaging member comprising at least one image layer and a base, said base comprising a cellulose paper that has its surfaces impregnated with water dispersible ester-based condensation polymer wherein the surface of said base has a roughness of less than 2.03 &mgr;m Ra and a hydrophobicity as measured by 40/20 Acid Valley test in excess of 500 seconds.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Sandra J. Dagan, Suresh Sunderrajan, Charles E. Romano, Jr., Robert A. Guistina
  • Publication number: 20010021614
    Abstract: The invention relates to a coated textile having printed patterns, of the type comprising a textile underlayer forming a backing and combined with a coating layer formed from a film based on an olefin polymer or copolymer or a blend of olefin polymers or copolymers and on an elastomer, the said coating layer having printed patterns on its surface which is not bonded to the textile underlayer.
    Type: Application
    Filed: January 12, 2001
    Publication date: September 13, 2001
    Inventor: Bruno Loez
  • Patent number: 6280574
    Abstract: The moisture application system of the present invention comprises in combination a first means for applying liquid to a paper web and a second means in contact with the web for scraping off excess liquid and spreading the liquid uniformly across the paper web. The moisture application system of the present invention is particularly useful when combined with a machine calender for finishing a paper web.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: August 28, 2001
    Assignee: Westvaco Corporation
    Inventor: Donald G. Bauer
  • Patent number: 6207223
    Abstract: In a method for producing a multilayer magnetic recording medium having at least three coating layers on a side of a magnetic recording layer side, the at least three coating layers are formed on the magnetic layer side at least two times dividedly.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: March 27, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunori Komatsu, Seiji Kasahara
  • Patent number: 6200424
    Abstract: An arrangement and method for calendering a board web including a calender providing a hot and hard calendering nip formed by two calender rolls and through which the board web passes. At least one of the calender rolls is arranged to be heated to such a temperature that the surface layer of the board web placed at the side of this roll reaches its vitrification temperature in the calendering nip. A film press is arranged directly before the calendering nip in the direction of transfer of the board web and includes a film press nip through which the board web is passed. The film press nip is arranged to transfer a liquid layer onto the face of the board web so as to moisten the board web. The board web is transferred from the film press nip into the calendering nip while the surface layer of the web is at the moisture level determined by the film press in view of producing a controlled moisture gradient.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: March 13, 2001
    Assignee: Valmet Corporation
    Inventors: Juhani Saari, Stefan Kuni
  • Patent number: 6197380
    Abstract: A lactide polymer coating resulting in a strong, repulpable, high gloss, paper coating. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 5 percent and water in concentration of less than about 2000 parts-per-million. A process for coating paper with the lactide polymer composition is also disclosed.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: March 6, 2001
    Assignee: Cargill, Incorporated
    Inventors: Patrick Richard Gruber, Jeffrey John Kolstad, Christopher M. Ryan, Eric Stanley Hall, Robin Sue Eichen Conn