Cellulosic Patents (Class 428/311.71)
  • Patent number: 10479044
    Abstract: The invention relates to fiber sheets, to structures comprising the fiber sheets and to the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: November 19, 2019
    Assignee: PAPTIC LTD
    Inventors: Esa Torniainen, Tuomas Mustonen, Karita Kinnunen, Tuomo Hjelt
  • Publication number: 20150093560
    Abstract: A porous body that contains cellulose nanofibers having very thin fiber diameters and high hydrophilicity, and has a large specific surface area, and to provide a method of producing the porous body simply with low cost. A method of producing a porous cellulose comprises a process of lyophilizing a mixed liquid containing cellulose nanofibers and a dispersion medium, wherein the dispersion medium is a mixed dispersion medium of water and an organic solvent dissolving in water, a concentration of the organic solvent in the mixed dispersion medium is 2 to 40 mass %, and a solid content concentration of the cellulose nanofibers in the mixed liquid is 0.001 to 5 mass %.
    Type: Application
    Filed: May 15, 2013
    Publication date: April 2, 2015
    Applicants: THE UNIVERSITY OF TOKYO, HOKUETSU KISHU PAPER CO., LTD.
    Inventors: Junji Nemoto, Toshihiko Soyama, Akira Isogai, Tsuguyuki Saito
  • Patent number: 8980055
    Abstract: A disposable cellulosic wiper includes (a) a percentage by weight of pulp-derived papermaking fibers, and (b) a percentage by weight of fibrillated regenerated independent cellulosic microfibers having a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml and having a weight average diameter of less than 2 microns. The microfibers are further characterized in that 40% by weight thereof is finer than 14 mesh.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 17, 2015
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 8785623
    Abstract: The present invention relates to ferromagnetic materials based on nano-sized bacterial cellulose templates. More specifically, the present invention provides an agglomerate free magnetic nanoparticle cellulose material and a method of forming such magnetic nanoparticle cellulose material. Further, the magnetic nonoparticles are physically attached on the cellulose material and evenly distribute.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: July 22, 2014
    Assignee: Cellutech AB
    Inventors: Richard T. Olsson, My Ahmed Said Samir Azizi, Lars Berglund, Ulf W. Gedde
  • Publication number: 20140050886
    Abstract: A pressurised steam moulded multilayer lining for heat and sound insulation comprising a first layer forming a reinforcement layer made of a blended web of polyamide matrix material in the form of powder or fibres or flakes and reinforcement fibres, and at least a second layer chosen from an open cell foam layer, or a heat reflecting layer, or a second reinforcement layer made of a blended web of polyamide matrix material in the form of powder or fibres or flakes and reinforcement fibres, and whereby due to the pressurized steam moulding, all layers are laminated together and all available blended webs are consolidated to form porous reinforcement layers
    Type: Application
    Filed: March 12, 2012
    Publication date: February 20, 2014
    Applicant: Autoneum Management AG
    Inventors: Thomas Burgin, Pierre Daniere, Philippe Godano, Stefan Konigbauer, Wenzel Krause
  • Patent number: 8563137
    Abstract: The invention relates to a composite material having two or more superimposed wood layers. Said layers are joined together by means of a one component polyurethane adhesive containing a prepolymer having free NCO groups and a wood having a volume fraction of libriform fibres in the region of between 50-70% is used.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: October 22, 2013
    Assignee: BASF SE
    Inventors: Manfred Genz, Hans Ulrich Schmidt, Stefan Ullmann, Timo Prozeske, Stefan Meyer
  • Patent number: 8557389
    Abstract: The invention relates to the use of a composite material having two or more superimposed layers of wood as a support element in structural engineering, nautical, vehicle and aircraft constructions, energy production systems, mining or in the production of furniture. The wood layers are joined together by means of a one component polyurethane adhesive containing a prepolymer with free NCO groups and the wood has a structure having a volume fraction of libriform fibers of between 50%-70%.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: October 15, 2013
    Assignee: BASF SE
    Inventors: Manfred Genz, Hans-Ulrich Schmidt, Timo Prozeske, Stefan Meyer, Harald Roedel, Norbert Strubel, Johann Goertz, Frank Loewer, Karl-Heinz Koch, Hasan Kuscu
  • Publication number: 20130183505
    Abstract: An engineered composite building material, such as fiber cement, having one or more engineered sub-surface regions designed to provide the building material with improved moisture ingress resistance, paint adhesion, and other mechanical properties is provided. The sub-surface region has a cement-polymer matrix formed by introducing an impregnating agent into the pores of the substrate. The composite building material may be formed by applying impregnating agents to the subsurface regions of the substrate to form chemical and/or mechanical bonds with the matrix of the building material, the reinforcement fibers, and/or the surface coatings applied to the material. The thickness of the sub-surface regions may be controlled by varying the viscosity and porosity of the building material substrate. The cement-polymer building material has enhanced durability, weather resistance, strength, and stiffness.
    Type: Application
    Filed: March 7, 2013
    Publication date: July 18, 2013
    Applicant: JAMES HARDIE TECHNOLOGY LIMITED
    Inventor: JAMES HARDIE TECHNOLOGY LIMITED
  • Patent number: 8461064
    Abstract: A friction material includes a resin and a fibrous base material impregnated with the resin. The fibrous base material has a single ply, and includes a plurality of aramid fibers present in a first amount, a plurality of polyacrylonitrile-based carbon fibers present in a second amount that is less than the first amount, and diatomaceous earth present in a third amount that is greater than the first amount. The fibrous base material is substantially free from activated carbon. A friction member for operatively contacting a lubricated surface includes a substrate and a friction material. The friction material defines a first surface bonded to the substrate and a second surface configured for operatively contacting the lubricated surface.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 11, 2013
    Assignee: Eaton Corporation
    Inventor: Bulent Chavdar
  • Patent number: 8409705
    Abstract: Fibers having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes or may be arranged in a pseudo-random pattern. The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 2, 2013
    Assignee: D.W. Spinks (Embossing) Ltd.
    Inventor: Gary D Spinks
  • Publication number: 20130078422
    Abstract: An insulation batt for use in building structures is presented. The insulation batt includes an air flow resistive layer of material provided between portions of insulating material.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 28, 2013
    Inventors: Brandon Dillan Tinianov, Kent Severin Whiting, Frank Warren Bishop, JR.
  • Publication number: 20130078447
    Abstract: An electrostatic discharge (ESD) sheeting (10) comprises a conductive sheet (11), consisting of a cellulose fibrous or porous sheet which is treated with a carbon nanotube (CNT) solution to achieve the desire electrical conductivity, and impregnated with a thermoset resin material (13) through the process of permeation or osmosis in a controlled amount, to form a transparent polymeric sheet.
    Type: Application
    Filed: May 10, 2011
    Publication date: March 28, 2013
    Applicant: ESD TECHNOLOGY CONSULTING & LICENSING CO., LTD
    Inventor: Kek Hing Kow
  • Patent number: 8282085
    Abstract: An absorbent covering (1) has high damping power, secured on a structure (2) and includes a dissipater mesh made up of a plurality of dissipating elements (3) and of nodes (4) each having its bottom end (4?) secured on the structure (2). In remarkable manner, the bottom ends (4?) of the nodes (4) project from the dissipating elements (3) so as to leave an empty space (5) between the dissipating elements (3) and the structure (2), the absorbent covering (1) including main absorbent elements (6) arranged in the empty space (5), each of the main absorbent elements (6) being secured firstly to a bottom face (3?) of a dissipating element (3) and secondly to the structure (2).
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: October 9, 2012
    Assignee: Eurocopter
    Inventor: Thomas Manfredotti
  • Patent number: 8187421
    Abstract: An absorbent paper sheet includes cellulosic papermaking fiber and up to about 75 percent by weight fibrillated regenerated cellulose microfiber which may be regenerated from a cellulosic dope utilizing a tertiary amine N-oxide solvent or selected ionic liquids.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 29, 2012
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 8158253
    Abstract: Fibers (2, 14) having a plurality of colored regions printed on front and rear sides of said fiber are disclosed, wherein the colors are visible only under ultra-violet light. The regions may be in the form of stripes (4, 6, 8, 10 and 12) or may be arranged is a pseudo-random pattern (16, 18, 20, 22, 24). The regions may be differently colored. Such fibers can be incorporated into paper products as a form of counterfeit protection.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 17, 2012
    Assignee: D W Spinks (Embossing) Ltd.
    Inventor: Gary D. Spinks
  • Patent number: 8039110
    Abstract: A composite material, useful in producing wood-based materials, comprises (a) at least one cellulose- or lignocellulose-containing material and (b) at least one aminoalkylsilane, or at least one cocondensate of the at least one aminoalkylsilane and at least one further functional silane, or an aqueous solution which contains the at least one aminoalkylsilane or the at least one cocondensate of the at least one aminoalkylsilane and the at least one further functional silane.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: October 18, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Peter Jenkner, Burkhard Standke, Jaroslaw Monkiewicz, Roland Edelmann, Alireza Kharazipour, Lars Kloeser
  • Patent number: 7993738
    Abstract: Modified porous materials are disclosed having interconnected, complexly shaped three-dimensional surfaces. The modification is accomplished by crosslinking the three-dimensional surfaces or by incorporating, in situ, an inorganic material onto or into three-dimensional surfaces. The porous materials are macro structures including at least one of nano-features, micro-features, and combinations thereof. The modifying accomplishes changing surface properties of the porous materials, changing the three-dimensional surfaces, and/or rendering the porous materials substantially stable in a predetermined environment.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: August 9, 2011
    Assignee: The Regents of the University of Michigan
    Inventors: Peter X. Ma, Xiaohua Liu
  • Publication number: 20110027534
    Abstract: The object of the present invention is to improve the releasing property of a molded article. To attain the object, the present invention provides a release sheet 1 characterized by coating or impregnating an aqueous binder on/in to a porous sheet, wherein the porous sheet has preferably an airflow resistance of 0.01 to 1.2 kPa·s/m, and the porous sheet is a preferably creped and/or embossed stretchable paper, the aqueous binder containing (A) a polymer produced by radical polymerization of an ethylenical unsaturated dicarboxylic anhydride or an ethylenical unsaturated dicarboxylic acid whose carboxylic acid group can form acid anhydride group, and (B) an alkanolamine having at least two hydroxyl groups. The release sheet(s) 1 is (are) laminated onto a base material 2. When the laminated material is molded by heating, the aqueous binder quickly hardens, demonstrating its releasing property.
    Type: Application
    Filed: November 7, 2008
    Publication date: February 3, 2011
    Inventors: Masanori Ogawa, Makoto Fujii, Naohiro Mizutani
  • Publication number: 20100239843
    Abstract: An absorbent paper sheet is treated with an aqueous wax dispersion such that the sheet includes a fused wax and emulsifier residue in an amount of from about 1 to about 20 weight percent of the sheet based on the combined weight of the fiber, wax residue and an emulsifier residue in the sheet. The fused wax emulsion operates to make at least one surface of the sheet laterally hydrophobic, exhibiting a moisture penetration delay of at least about 2 seconds and less than about 40 seconds as well as a typical contact angle with water at one minute of at least about 50 degrees. There is thus provided absorbent products which exhibit both absorbency and resistance to moisture penetration. The treated sheet further exhibits microbial barrier properties, impeding transfer of bacteria, for example, through the sheet. There are produced tissue products which resist moisture penetration from propelled liquids as well as sequester sorbed liquids in the interior of the tissue.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 23, 2010
    Inventors: Phuong V. Luu, Steven L. Edwards, David W. White, Brigitte K. Schauer, Martin A. Hynnek
  • Patent number: 7785699
    Abstract: A protective covering constructed from an electrostatically charged sheet having a top and bottom surface and an absorbent layer. The absorbent layer has top and bottom surfaces, the bottom surface of the absorbent layer being bonded to the top surface of the electrostatically charged sheet. The absorbent layer is divided into a plurality of cells for containing liquid spilled on the absorbent layer. The absorbent layer can be constructed from paper, open cell foam, fibrous mat, or any other absorbent material. In the preferred embodiment of the present invention, the cells are constructed by providing hydrophobic barriers in the absorbent layer. The barriers can be constructed from paraffin, plastic, or any other material that can penetrate the absorbent layer. In one embodiment of the present invention, a hydrophobic layer is bonded to the top surface of the absorbent layer.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: August 31, 2010
    Inventor: Calvin B. Ward
  • Patent number: 7718036
    Abstract: An absorbent paper sheet for tissue or towel includes from about 99 percent to about 70 percent by weight of cellulosic papermaking fiber and from about 1 percent to about 30 percent by weight fibrillated regenerated cellulose microfiber which was regenerated form a cellulosic dope utilizing a tertiary amine N-oxide solvent or an ionic liquid.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: May 18, 2010
    Assignee: Georgia Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Bruce J. Kokko
  • Publication number: 20090324926
    Abstract: Cellulose filtration products comprising nonwoven meltblown lyocell fiber webs in which the fibers have a diameter of from 3 to 12 microns, the largest pore diameter of less than about 300 microns and a mean flow pore diameter of less than about 150 microns are disclosed. Multilayer nonwoven lyocell fiber webs are also disclosed which have lower mean flow pore diameters and lower pore sizes.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Weyerhaeuser Co.
    Inventor: Mengkui Luo
  • Patent number: 7517580
    Abstract: Fibrous monolith composites having architectures that provide increased flaw insensitivity, improved hardness, wear resistance and damage tolerance and methods of manufacture thereof are provided for use in dynamic environments to mitigate impact damage and increase wear resistance.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: April 14, 2009
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: Anthony C. Mulligan, Mark J. Rigali, Manish P. Sutaria, Dragan Popovich, Joseph P. Halloran, Michael L. Fulcher, Randy C. Cook
  • Patent number: 7504346
    Abstract: Aerogel composite materials having a lofty fibrous batting reinforcement preferably in combination with one or both of individual short randomly oriented microfibers and conductive layers exhibit improved performance in one or all of flexibility, drape, durability, resistance to sintering, x-y thermal conductivity, x-y electrical conductivity, RFI-EMI attenuation, and/or burn-through resistance.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: March 17, 2009
    Assignee: Aspen Aerogels, Inc.
    Inventors: Christopher J. Stepanian, George L. Gould, Redouane Begag
  • Publication number: 20080081165
    Abstract: A fibrous composite, comprising cellulose fibers treated with a first galactomannan polymer or a first glucomannan polymer, the treated fibers having particles attached thereto, the particles comprising carboxyalkyl cellulose, a second galactomannan polymer or a second glucomannan polymer, and a plurality of non-permanent metal crosslinks.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Applicant: Weyerhaeuser Co.
    Inventors: S. Ananda Weerawarna, Bing Su
  • Patent number: 7160606
    Abstract: A method of treating building materials with boron and boron treated building materials. The method involves introducing boron during manufacture of the building materials in the form of a water soluble copper-borate complex. The copper-borate complex enables a wider range of glues and adhesives to be used, is slower to leach out, and provides enhanced fungicidal properties.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: January 9, 2007
    Assignee: Genics Inc.
    Inventors: Wesley James Wall, Calvin Lee Michael Wall, Ryan George Smart
  • Patent number: 7141519
    Abstract: The present invention is directed to ion triggerable, water-dispersible cationic polymers. The present invention is also directed to a method of making ion triggerable, water-dispersible cationic polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion triggerable, water-dispersible binder compositions and their applicability in water-dispersible personal care products, such as wet wipes.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: November 28, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: W. Clayton Bunyard, Kelly D. Branham, Michael R. Lostocco, Glenn Calhoun, Rod Weston, Frederick J. Lang, Kevin Possell
  • Patent number: 6996859
    Abstract: A toilet seat cover includes top and bottom layers each having outer and inner edge portions. The top and bottom layers are preferably formed from a paper and nylon composite for providing a waterproof barrier. The toilet seat cover further includes a middle layer sandwiched between the top and bottom layers and a plurality of adhesive strips for removably attaching the toilet seat cover onto a toilet seat are attached to the bottom layer. The middle layer is preferably formed from foam material and may include a deodorizing agent impregnated therein. The toilet seat cover is preferably made from soluble material so that it can be flushed down a toilet after use.
    Type: Grant
    Filed: May 26, 2003
    Date of Patent: February 14, 2006
    Inventors: Raul Alonso, Gloria M. Fink
  • Patent number: 6994909
    Abstract: The invention relates to a laminating adhesive including a reaction product of at least one polymeric polyol (part A) and at least one NCO terminated polyurethane prepolymer (part B). The part A includes a reaction product of at least one alkylene diol; at least one dial containing a pendant aliphatic chain; and at least one dicarboxylic acid. The part B includes a reaction product of at least one polyether polyol; and at least one polyisocyanate. The adhesive exhibits an initial viscosity of less than about 25,000 mPa.s at about 25° C.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: February 7, 2006
    Assignee: H.B. Fuller Licensing & Financing Inc.
    Inventor: Brian S. Glasbrenner
  • Patent number: 6974624
    Abstract: Fibrous monolith composites having architectures that provide increased flaw insensitivity, improved hardness, wear resistance and damage tolerance and methods of manufacture thereof are provided for use in dynamic environments to mitigate impact damage and increase wear resistance.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: December 13, 2005
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: Anthony C. Mulligan, Mark J. Rigali, Manish P. Sutaria, Dragan Popovich, Joseph P. Halloran, Michael L. Fulcher, Randy C. Cook
  • Patent number: 6933038
    Abstract: The present invention relates to a method for reinforcing mineral-based materials using reinforced fiber material. More particularly, the present invention relates a method for more uniformly dispensing a fiber material with a mineral-based material, such as cement paste.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: August 23, 2005
    Assignee: Institute of Paper Science and Technology, Inc.
    Inventors: Hiroki Nanko, Kimberly E. Kurtis
  • Patent number: 6863971
    Abstract: The present invention concerns treated fibrous porous material having a defined nanostructure comprising reactive sites thereon, wherein said fibrous porous material is treated with a low viscosity organic solution comprising organic solvent, isocyanate component unsaturated resin and optionally additional additives. The treated fibrous porous material is further mixed with a resin to form a composite. The composite may be formed by various methods of mixing and molding. The invention is further directed to various composites made therefrom. The fibrous porous material is selected from the group comprising cellulose, lignin, synthetic ceramics, porous metal nanopowders, kaolin, bio fibers and porous powders of biological origin or their mixtures. The resin may be any polymer virgin or scrap obtained from industrial or domestic waste, and is selected from thermoplastic or thermosetting polymers.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: March 8, 2005
    Assignee: Cycletec Ltd.
    Inventors: Izhar Halahmi, Mike Gross, Ian Leonard Jacobs, Gaby Kadosh
  • Patent number: 6828014
    Abstract: The present invention is directed to triggerable, water-dispersible cationic polymers. The present invention is also directed to a method of making triggerable, water-dispersible cationic polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising triggerable, water-dispersible binder compositions and their applicability in water-dispersible personal care products, such as wet wipes.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: December 7, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kelly D. Branham, Yihua Chang, Frederick J. Lang, Erin McBride, Clay Bunyard
  • Patent number: 6753061
    Abstract: A flexible sandwich panel (100), comprised of a center layer (1) and one or two outer layers (2; 3), where the center layer is made of a polymeric synthetic material, is itself flexible and exhibits a coarse-cell honeycomb structure with open cells (4) in the direction of the upper and lower side of the center layer. The outer layer or layers consist of a hardened mortar that is made flexible with synthetic additives, and that have as their core a web material consisting essentially of fibers, where the exterior side (5) of the hardened outer layer is left unrefined or roughcast in a plaster-like manner. The sandwich panel can be bent without flaking of the outer layers.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 22, 2004
    Inventor: Stephan Wedi
  • Patent number: 6743850
    Abstract: Provided are a new cationic polymer and an inkjet recording sheet exhibiting a superior printing density of an image without lowering ink receptivity. A cationic polymer represented by the following general formula (A): An inkjet recording sheet, that has, on a substrate, a colorant-accepting layer containing cationic polymer modified inorganic pigment particles, which are obtained by bonding inorganic pigment particles to a cationic polymer having, at its terminal, a group that can be bonded to the inorganic pigment particles.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: June 1, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kousaku Yoshimura, Ryoichi Nakano, Shigetomo Tsujihata
  • Publication number: 20040062907
    Abstract: The present invention is a tissue web comprising cellulosic fibers and a semi-synthetic cationic polymer having a molecular weight less than about 5 million. The semi-synthetic cationic polymer can be heterogeneously distributed in the tissue web. The semi-synthetic cationic polymer has a degree of cationic substitution of at least 0.2.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Jeffrey Dean Lindsay, Thomas Gerard Shannon
  • Publication number: 20040062912
    Abstract: A fire blocking non-woven needlepunched textile structure, comprising a first fiber component containing polyacrylonitrile copolymer with a halogen containing monomer and a second fiber component. The second fiber component is selected such that it supports the first fiber component during burning, optionally including an inorganic filler as a coating for the first and second fiber components. In alternative embodiment, the present invention provides a fire blocking non-woven textile structure containing the above first and second fiber components, blended with a third binder fiber component in the form of a vertically lapped nonwoven structure.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Inventors: Charles R. Mason, Kate Hale-Blackstone
  • Patent number: 6709737
    Abstract: Fibrous monolith composites having architectures that provide increased flaw insensitivity, improved hardness, wear resistance and damage tolerance and methods of manufacture thereof are provided for use in dynamic environments to mitigate impact damage and increase wear resistance.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: March 23, 2004
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: Mark J. Rigali, Manish P. Sutaria, Anthony C. Mulligan, Dragan Popovich
  • Publication number: 20030168191
    Abstract: This invention, in one aspect, relates to a multi-ply paperboard having at least three inner plies and, in some aspects, a top liner and a back liner, wherein the multi-ply paperboard is derived from fiber sources comprising at least about 80% by weight recycled fiber. The multi-ply paperboard of the present invention exhibits strength characteristics comparable those of paperboard prepared from virgin board. In further aspects, the invention relates to methods of making the multi-ply paperboard of the present invention.
    Type: Application
    Filed: March 26, 2002
    Publication date: September 11, 2003
    Inventors: James K. Hansen, Richard L. Munson, Roberto Balaguer, Jeffrey M. Leitinger, Thomas F. Barton
  • Patent number: 6617031
    Abstract: The invention relate to a method of laminating flexible packaging, articles of manufacture and bonded laminates. The method comprises employing a laminating adhesive comprising an isocyanate-based composition comprising the reaction product of at least one polymeric polyol (part A) comprising the reaction product of at least one alkylene diol at least one diol; containing a pendant aliphatic chain; and at least one dicarboxylic acid; with at least one NCO terminated polyurethane prepolymer (part B) comprising the reaction product of at least one polyether polyol; and at least one polyisocyanate. The low viscosity laminating adhesive has enhanced processing characteristics at reduced temperature.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: September 9, 2003
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventor: Brian S. Glasbrenner
  • Publication number: 20030157315
    Abstract: Insulating flame-resistant woven fabrics have been discovered which have a nap on the back side of the fabric to provide extra comfort and heat resistance without reduction in wear life or increased pilling.
    Type: Application
    Filed: November 1, 2002
    Publication date: August 21, 2003
    Inventor: James R. Green
  • Publication number: 20030157312
    Abstract: To provide a typically plate-shaped or sheet-shaped inexpensive web product that is prepared on a large scale and using cheaper raw materials that have not been used, with the web being tenacious and non-toxic when used as construction parts of houses, and capable of being discarded under the ground so as to be readily decomposed by bacteria and enzymes, and further capable of being burnt at lower temperatures preventing generation of toxic substances.
    Type: Application
    Filed: April 14, 2003
    Publication date: August 21, 2003
    Inventor: Naganori Sagawa
  • Patent number: 6603054
    Abstract: Disclosed is a fibrous absorbent structure that is wet stable and has large void volume with a density below the critical density of the fiber employed. In one embodiment, the fibrous absorbent uses open-celled foam technologies to keep the fibrous structure expanded and bonded. In other embodiments, the resulting fibrous structure resembles an open-celled polymeric foam, with fibers serving as struts stabilized by binder material. In another embodiment, the resulting fibrous structure is filled with hydrophilic open-celled foams with the cell size substantially smaller than the fibrous pores. Such a wet-stable, high void volume fibrous absorbent can be used in a disposable product intended for the absorption of fluid such as body fluid, including extensible absorbent articles.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: August 5, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Fung-jou Chen, Jeffrey Dean Lindsay, Jian Qin, Yong Li
  • Patent number: 6599977
    Abstract: The present invention relates to a process for the preparation of an aqueous dispersion of an anionic polyurethane. According to the invention, a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent. The process of the invention comprises the steps of: dispersion of an anionic isocyanate functional polyurethane prepolymer in water in the presence of a tertiary amine functional urethane polymer or oligomer and chain extension of the anionic polyurethane prepolymer with a reactive hydrogen functional material during or after the dispersion in water.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: July 29, 2003
    Assignee: Stahl International B.V.
    Inventors: Laurentius Cornelius Josephus Hesselmans, Josep Oller Chirivella
  • Patent number: 6537653
    Abstract: A bondable wood cellulosic filler/olefinic plastic composite sheet material made by extruding in a sheet shape a mixture consisting of: (1) 40-60 parts by weight of an olefinic plastic; (2) 60-40 parts by weight of a wood cellulosic filler, the size thereof being 40-110 mesh and the water content being not exceeding 5%; and (3) 0.5-5.0 parts by weight of an additive mainly consisting of polypropylene modified by maleic anhydride or its derivative.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: March 25, 2003
    Assignee: Namba Press Works Co., Ltd.
    Inventors: Fumi O Goto, Yasumasa Kasahara, Tatsuyuki Ishiura
  • Patent number: 6458460
    Abstract: A wound dressing comprises a blend of at least two types of discrete fibers wherein one discrete fiber is of a modified cellulose gel-forming material and a second discrete fiber is of another type of gel-forming material such as an alginate.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 1, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bryan Griffiths, Elizabeth Jacques, Stephen Bishop
  • Publication number: 20020090511
    Abstract: The present invention provides cellulose fibers having low median desorption pressures and low water retention values (WRV), which exhibit improved drainage and fluid flow properties. These fibers are particularly well suited for use in acquisition, distribution, and acquisition-distribution layers, or in absorbent core structures. One embodiment of the invention is a method for preparing cellulose fibers by refining cellulose fibers to a freeness ranging from about 300 to about 700 ml CSF and crosslinking the refined fibers. Another embodiment of the invention is fibers crosslinked with at least one saturated dicarboxylic acid, aromatic dicarboxylic acid, cycloalkyl discarboxylic acid, bifunctional monocarboxylic acid, or amine carboxylic acid. A crosslinking facilitator, such as oxalic acid, may be present during the crosslinking reaction to improve the efficacy of the crosslinking agent. Yet another embodiment of the invention is an absorbent core comprising SAP particles and reversible crosslinked fibers.
    Type: Application
    Filed: November 8, 2001
    Publication date: July 11, 2002
    Applicant: BKI HOLDING CORPORATION
    Inventors: David Jay Smith, Howard Leon Schoggen, Robert Irvin Bell, James R. Gross
  • Patent number: 6407309
    Abstract: An inexpensive sheet or web shaped fibre material for use e.g., in sanitary napkins typically consists of a mixture of short cellulose fibres and some 15% of relatively long, thermoplastic binder fibers. It is a noticeable problem that the short fibres “dust” out of the material, and according to the invention this is remedied in that the material, when made by dry forming, is provided with a surface coating of very thin layers of pure binder fibres. In addition to a marked holding back of the dust, these layers condition that the amount of binder fibres in the base material can be halved and that the breaking stress of the material is noticeably improved. Thereby the products are usable not only as inserts, but also as individual, self-contained units e.g., for wiping in domestic or industrial cleaning.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: June 18, 2002
    Assignee: Scan-Web I/S
    Inventor: Helmut Erwin Schilkowski
  • Patent number: 6372333
    Abstract: A composition containing a function improver and an inorganic porous crystals-hydrophilic macromolecule composite wherein the hydrophilic macromolecule contains inorganic porous crystals in its inner matrix, and a product made therefrom The product, textile, nonwoven fabric, paper and laminate obtained from the composition of the present invention come to have high strength in addition to the gas adsorption capability, volatile organic solvent removing capability, noncombustibility, heat insulating property, and heavy metal and radioactive element removing capability that the inorganic porous crystals-hydrophilic macromolecule composite (A) possesses. It is also possible to improve a touch and the like, so that the composition is useful as a material having additional functions.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: April 16, 2002
    Assignee: Rengo Co., Ltd.
    Inventors: Kouju Sugiyama, Maki Nakano, Takaaki Utsunomiya, Yoshinobu Fujimoto
  • Patent number: 6365667
    Abstract: Synthetic polymers having hydrogen bonding capability and one or more aliphatic hydrocarbon moieties are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two different molecules. The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and polyacrylic acids.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 2, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Thomas Gerard Shannon, Daniel Arthur Clarahan, Mike Thomas Goulet, Wen Zyo Schroeder