Paper Or Natural Cellulose Base Patents (Class 427/382)
  • Patent number: 11807525
    Abstract: An object of the present invention is to provide a new form of adsorbent suitable for a motor vehicle canister. An activated carbon fiber sheet satisfies one or two or more of conditions for indices, such as a specific surface area, a pore volume of pores having a given pore diameter, and a sheet density. An embodiment, for example, may have: a specific surface area ranging from 1400 to 2200 m2/g; a pore volume ranging from 0.20 to 1.20 cm3/g for pores having pore diameters of more than 0.7 nm and 2.0 nm or less; and a sheet density ranging from 0.030 to 0.200 g/cm3.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 7, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Daisuke Imai, Yoshihide Watanabe, Yuu Takata, Shunsuke Ozawa, Chie Yoshida, Kenichi Fujino
  • Patent number: 10570281
    Abstract: The disclosure provides a cross-linkable polymer composition, a core layer for an information carrying card comprising such cross-linked composition, resulting information carrying card, and methods of making the same. A crosslinkable polymer composition comprises a curable base polymer resin in a liquid or paste form, and a particulate thermoplastic filler. The base polymer resin is selected from the group consisting of urethane acrylate, silicone acrylate, epoxy acrylate, urethane, acrylate, silicone and epoxy. The particulate thermoplastic filler may be polyolefin, polyvinyl chloride (PVC), a copolymer of vinyl chloride and at least another monomer, or a polyester such as polyethylene terephthalate (PET), a compound or blend thereof.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 25, 2020
    Assignee: X-CARD HOLDINGS, LLC.
    Inventor: Mark A. Cox
  • Patent number: 10543707
    Abstract: A recording media containing a raw base substrate having, on its image side, a primary coating layer and a top image receiving layer is described herein. Said top image receiving layer encompasses a polymeric adhesion promoter having a glass transition temperature that is at, or above, 90° C. Also described is a printed article containing said recording media on which a printed feature has been formed with an ink composition that encompasses latex components that have a glass transition temperature that is at, or above, 90° C.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 28, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaoqi Zhou, David Edmondson, Rodney D. Stramel
  • Patent number: 9133294
    Abstract: Described herein are alkyl phenolic resins and methods of producing them. The content of residual phenol in the alkyl phenolic resin may be less than about 2% w/w, the softening point of the alkyl phenolic resin may be about 85° C. to about 105° C., the tackiness of the alkyl phenolic resin may be about 8 N to about 25 N, the alkyl group of the alkyl phenol may have 6-12 carbon atoms, and the content of 4-(1,1,3,3-tetramethylbutyl) phenol in the alkyl phenol may be from about 0% to about 85% w/w. The invention also relates to a use of the alkyl phenolic resin as rubber tackifier.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: September 15, 2015
    Assignee: Sino Legend (China) Chemical Co. Ltd.
    Inventors: Fan Yunfeng, Yang Quanhai
  • Publication number: 20150083319
    Abstract: A method of applying a photocatalytic dispersion (10) on a paper (2), including impregnating a paper (2) with a thermosetting resin, drying the resin impregnated paper (2), applying a photocatalytic dispersion (10) comprising photocatalytic nanoparticles on the dried, resin impregnated paper (2), and drying the resin impregnated paper (2) having the photocatalytic dispersion applied thereon. Also, to such a photocatalytic dispersion.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 26, 2015
    Applicant: Välinge Photocatalytic AB
    Inventors: Hans PERSSON, Marcus BERGELIN, Michael HUMLE, Simon Lausten ÖSTERGAARD
  • Publication number: 20150051386
    Abstract: The invention is directed to a process for the continuous acetylation of wood elements. The process particularly combines a batchwise impregnation step, with a continuous reaction step. In order to realize this, a collection step is built-in, so as to allow batches of impregnated wood elements to be fed into a reactor in a continuous manner. Very high acetylation contents can be obtained, at a level that had not been achievable before in a continuous and non-catalyzed acetylation process.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 19, 2015
    Applicant: TITAN WOOD LIMITED
    Inventors: Bernardus Jozef Maria Pol, Stefan Van Dommele, Paul Bussemaker, Benjamin Painter, Gerrit Arie De Wit, Theodorus Gerardus Marinus Maria Kappen
  • Publication number: 20140323618
    Abstract: A binder comprising the products of a carbohydrate reactant and polyamine is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Uncured fibrous products comprising fibers in contact with a carbohydrate reactant and a polyamine are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.
    Type: Application
    Filed: May 8, 2014
    Publication date: October 30, 2014
    Applicant: KNAUF INSULATION
    Inventors: Charles Fitch APPLEY, Carl A. HAMPSON, Gert R. MUELLER, Benedicte PACOREL
  • Publication number: 20140042081
    Abstract: A filter for removing substances, including leukocytes and platelets by way of non-limiting example, from whole blood or from blood derivatives, the filter includes a casing containing a layered filter element, at least one layer of this latter being coated with polyurethane; this polyurethane has a number average molecular weight between 10,000 and 20,000 Dalton. A method for forming the layered filter element for a filter such as mentioned above, in which at least one layer of this filter element is impregnated with polyurethane by immersing it in a container of a mixture in which the polyurethane is present. This mixture includes a solution in which the polyurethane is dissolved in a polar solvent such as water.
    Type: Application
    Filed: February 5, 2013
    Publication date: February 13, 2014
    Applicant: GVS S.P.A.
    Inventor: GVS S.P.A
  • Publication number: 20120114725
    Abstract: The present invention relates to an information medium to be handled by a large number of users, such as a banknote, and having antiviral properties, and to a method for making same.
    Type: Application
    Filed: May 7, 2010
    Publication date: May 10, 2012
    Applicant: ARJOWIGGINS SECURITY
    Inventor: Henri Rosset
  • Publication number: 20110229542
    Abstract: An antimicrobial fabric and method for treating fabric to impart antimicrobial properties thereto by preparing an aqueous solution of eugenol, polyvinyl alcohol, and glyoxal, padding the fabric with the aqueous solution to achieve a preselected desired part by weight wet pickup, drying the fabric; and curing the fabric.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 22, 2011
    Applicant: PHILADELPHIA UNIVERSITY
    Inventors: Diana R. Cundell, Alexander A. Messinger, Brian R. George, Bhalchandra Dhamankar, Ekaterina Shumilova
  • Patent number: 7959979
    Abstract: A process for forming room temperature water soluble polymer coatings on porous substrates by forming a solution of a room temperature water soluble polymer, one or more crosslinkers, a solvent for the room temperature water soluble polymer such as water and optionally one or more porogens, or functional agents, stirring the mixture until all the components are dissolved, adding the solution to a porous structure such as a non-woven fabric or a porous membrane and drying the solution on to the substrate as a coating before subjecting the coating to crosslinking. Alternatively, the coating may be partially crosslinked before drying the solution. Porous structures having a room temperature water soluble polymer coating and being capable of convective flow through the pores of the structure and diffusive flow through the coating can be formed.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: June 14, 2011
    Assignee: Millipore Corporation
    Inventor: Wilson Moya
  • Publication number: 20110081547
    Abstract: A natural quick-drying yarn and a manufacturing method thereof are provided. The natural quick-drying yarn is made of a plurality of natural fibers. Hydrophobic agents are disposed between the natural fibers and on the surface of the natural fibers. Hydrophilic agents are disposed outside the natural fibers. The method includes immersing natural fibers in a solution of hydrophobic agent to dispose the hydrophobic agent between the natural fibers and on the surface of the natural fibers, drying the hydrophobic agent solution immersed natural fibers, immersing the natural fibers in a solution of hydrophilic agent to dispose the hydrophilic agent outside the natural fibers, and drying the hydrophilic agent solution immersed natural fibers.
    Type: Application
    Filed: December 24, 2009
    Publication date: April 7, 2011
    Applicant: RUENTEX INDUSTRIES LIMITED
    Inventors: Chih-Chang Hsu, Shih-Ching Hung
  • Patent number: 7919144
    Abstract: A method for producing a sheet-like or web-like, decorative, scratch- and/or abrasion-resistant coating material, in particular a coating film, comprising the steps: coating a support layer (10) made of paper and/or plastic with a liquid or pasty base layer (12) which is free of organic solvents and comprises radiation-curing resins but no heat-curing resins and also an abrasive filler, preferably an inorganic filler, drying the support layer (10) coated with the base layer (12), in particular by supplying heat, applying a covering layer (14) to the dried, non-crosslinked base layer (12), said covering layer containing a radiation-curing resin and no abrasive fillers, and jointly curing and/or crosslinking the covering layer and also the radiation-curing resins in the base layer by irradiating the covering layer with UV and/or electron beams.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: April 5, 2011
    Assignee: Suddekor GmbH
    Inventor: Heinz Haller
  • Publication number: 20100291822
    Abstract: In one aspect of the invention, there is a biodegradable composition comprising lignocellulosic reinforcement material impregnated with a starch based resin and cured to form a thermoset composition. In another embodiment of the invention, there is a method of making a biodegradable composition comprising the steps of (a) providing a lignocellulosic reinforcement material; (b) impregnating the lignocellulosic reinforcement material with starch based resin to create an impregnated lignocellulosic reinforcement material; (c) drying the impregnated lignocellulosic reinforcement material; (d) curing the lignocellulosic reinforcement material at a sufficient temperature and a sufficient pressure for a sufficient period of time to produce a thermoset biodegradable composition.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 18, 2010
    Inventor: Anil Netravali
  • Publication number: 20100040861
    Abstract: Free-standing ordered mesoporous carbon films and form factors are prepared by depositing an aqueous precursor mixture that includes a water soluble carbon precursor, a non-ionic surfactant, and an oil onto a substrate or scaffold, drying the precursor mixture, and then cross-linking and heat treating (carbonizing) the carbon precursor. After carbonization, the ordered mesoporous carbon films and form factors include discrete domains of ordered, mesoscale pores.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 18, 2010
    Inventors: William Peter Addiego, Wageesha Senaratne
  • Patent number: 7575013
    Abstract: Coating is manufactured by mixing two or more components together in two or more mixing zones arranged in series and/or in parallel, of which at least some are pressurized.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: August 18, 2009
    Assignee: Metso Paper, Inc.
    Inventor: John Bergman
  • Publication number: 20080299318
    Abstract: There are disclosed an ink-jet recording material comprising a support and at least one ink-receptive layer provided on the support, wherein at least one of the ink-receptive layers contains inorganic particles having an average secondary particle size of about 500 nm or less, a resin binder having a keto group as a resin binder and a compound having two or more primary amino groups in the molecule, and a method for preparing the same.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 4, 2008
    Inventors: Hiroshi Sakaguchi, Yukio Tokunaga
  • Patent number: 7326164
    Abstract: Disclosed are a method and an apparatus designed to make a window envelope rapidly using a water-soluble clarifying agent without causing an inconvenience in its window area. Upstream of an envelope making stage wherein a continuous paper while traveling along a continuous path of travel is successively folded, pasted and cut to form an envelope, a water-soluble clarifying agent is applied to an area on the continuous paper that is designed to become the transparent window in the envelope and the continuous paper carrying the clarifying agent is wound on a plurality of drying cylinders so that its surface carrying the clarifying agent faces outwards to dry the clarifying agent while holding the surface of paper carrying the clarifying agent out of contact with the drying cylinders.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: February 5, 2008
    Assignees: Miyakoshi Printing Machinery Co., Ltd., AD. Printing Co., Ltd.
    Inventors: Kenji Abe, Akihiko Nakao, Masahiro Naka, Masahiro Sumida
  • Patent number: 7074458
    Abstract: A coating device for coating a coating solution on a web has a roller and a weir which partially constructs a solution store space. In the solution store space the coating solution is stored. When the web sequentially moves in a direction, the roller rotates and the solution in the solution store space is supplied on the web. Thereby a part of the solution overflows the weir such that another part of the solution may remain on the web to have a constant width in a widthwise direction of the web. A drying device has plural drying zones in which the web is fed after the coating of the coating solution. One of the drying zones is neighbored to the coating device. A top of the plural drying zones is constructed of a blow regulation member so as to confront to the solution on the web. The blow regulation member has holes through which is exhausted a gas evaporated from the layer of the solution on the web.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: July 11, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Ishizuka, Shinji Hikita, Tomonari Ogawa, Toshio Shibata, Takashi Nawano, Hidetomo Itoh
  • Patent number: 7056557
    Abstract: The present invention relates to a wood-polymer composite, particularly wood which has been impregnated with a mixture containing polymerizable organic compounds, and more particularly to a method for preparing a wood-polymer-composite by impregnating wood material and/or wood-based material with a mixture containing polymerizable organic compounds, and most particularly uses thereof.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: June 6, 2006
    Assignee: Wood Polymer Technologies ASA
    Inventor: Marc H. Schneider
  • Patent number: 6902770
    Abstract: The invention provides an improved method of transparentizing a paper substrate to produce a translucent area or “window” through which information and data are displayed. The method of the invention applies a transparentizing material to a preselected application site of the paper substrate, and exposes the transparentizing material to heat for a predetermined period of time to help facilitate penetration of the transparentizing material into the paper substrate and prevent migration of the transparentizing material from the application site. The rate of penetration of the transparentizing material into the paper substrate reduces the time and increases the efficiency of the transparentizing process. The invention also provides a paper substrate and a one-piece paper assembly in which a translucent area or “window” is formed according to the method of the invention.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: June 7, 2005
    Assignee: Infoseal L.L.C.
    Inventors: Roger A. Dulin, Robert A. DeMattia, Bryan S. O'Mary, Michael Burris
  • Patent number: 6863919
    Abstract: The invention relates to a method by means of which the machine-direction moisture of a web being coated can be controlled in an optimal manner that takes into account moisture content changes along the entire path of the coating and drying process. Advantageously, all the dryers the coater section are controlled in an integrated manner in order to obtain a controlledly processed product which is optimized in regard to energy consumption and product quality. Each process section and unit contributing to the drying of the web is identified by means of a mathematical submodel describing the specific evaporation rate in the respective process section/unit and, by chaining these submodels, a composite model is compiled for the entire process, whereby the composite model makes it possible to manage the drying operation in the process so that the individual units are controlled as a portion of the overall process.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: March 8, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Tapio Mäenpää, Eero Suomi, Vilho Nissinen
  • Patent number: 6821636
    Abstract: A method of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a veneer, comprising a step of treating at least one of the surfaces of said veneer, prior to bonding the layers together, with a solution comprising an ammonium salt. The invention also relates to a flooring material obtained by the method.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: November 23, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Robin Ljungar, Ingvar Lindh, Salme Pirhonen
  • Patent number: 6800325
    Abstract: The invention relates to a method of producing an interior fitment for motor vehicles, the interior fitment having on its facing side a wood molding which is provided with a coating. In order to impart a substantially natural impression to the interior fitment, the invention proposes applying to the wood molding a coating material based on vegetable-oil-modified resins and natural vegetable oils, with the addition to the coating material of ceramic microparticles. Likewise proposed is an interior fitment produced preferably by this method.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: October 5, 2004
    Assignee: Erwin Behr Automotive GmbH
    Inventors: Martin Ehrath, Christian Hoering
  • Patent number: 6759093
    Abstract: A method for manufacturing a wet type friction material obtained by immersing binding agent into a paper body comprised of fiber base material and filler, comprises a first immersing step for immersing first binding agent into said paper body, a second immersing step for immersing second binding agent into said paper body after said first immersing step and a heating and curing step for heating and curing said paper body into which said first and second binding agents were immersed.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: July 6, 2004
    Assignee: NSK-Warner K.K.
    Inventors: Hiroshi Takahara, Shunya Matsuda
  • Patent number: 6749949
    Abstract: A method of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a board or veneer, comprising a step of treating at least one of the surfaces of said board or veneer, prior to bonding the layers together, with a solution comprising an inorganic sulphur containing salt. The invention also relates to a flooring material obtained by the method.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 15, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Robin Ljungar, Ingvar Lindh, Salme Pirhonen
  • Patent number: 6733827
    Abstract: Processes for forming a filter material are provided. The processes include the steps of coating a filter particle with a lignosulfonate, carbonizing the coating, and activating the coating.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: May 11, 2004
    Assignee: The Procter & Gamble Co.
    Inventors: Michael Donovan Mitchell, Blair Alex Owens, Dimitris Ioannis Collias, Andrew Julian Wnuk
  • Patent number: 6726959
    Abstract: The invention relates to a process for fabricating a coating layer (8) and a portable support (1) provided with such layer, comprising a support body (3) provided on one of its sides (4) with said coating layer (8). The process of the invention is characterized in that, for the fabrication of the coating layer (8), a transient thermoplastic layer (17) is cross-linked so as to make it thermosettable. The invention applies particularly to the fabrication of chip based cards.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: April 27, 2004
    Assignee: Gemplus
    Inventors: Isabelle Corniglion, Christian Leriche
  • Patent number: 6673395
    Abstract: The present invention relates to a wood-polymer composite, particularly wood which has been impregnated with a mixture containing polymerizable organic compounds, and more particularly to a method for preparing a wood-polymer-composite by impregnating wood material and/or wood-based material with a mixture containing polymerizable organic compounds, and most particularly uses thereof.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: January 6, 2004
    Assignee: Wood Polymer Technologies Asa
    Inventor: Marc H. Schneider
  • Patent number: 6660334
    Abstract: There is disclosed a cleaning article including a water-decomposable non-woven fabric containing water dispersible fibers and a water soluble resin coated on one side or both sides of the water-decomposable non-woven fabric. The water soluble resin is contained more in a surface portion or surface portions of a fiber assembly than in a remaining portion or inner portion of the fiber assembly. The water soluble resin thus contained can increase only the surface strength of the non-woven fabric sufficiently without deteriorating the softness of the entire article, so that dropping of fibers or breakage of surface upon wiping operation can be prevented.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: December 9, 2003
    Assignee: Uni-Charm Corporation
    Inventors: Naohito Takeuchi, Konishi Takayoshi
  • Patent number: 6632805
    Abstract: A method of dyeing and treating a substrate using a water-stabilized organosilane. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: October 14, 2003
    Assignee: Emory University
    Inventors: Lanny S. Liebeskind, Gary D. Allred
  • Publication number: 20030077455
    Abstract: Processes for the preparation of adherent polyvinylidene fluoride, hexafluoropropylene coatings on objects and for the direct production of open celled foams from a polymer latex without a need for any blowing agent.
    Type: Application
    Filed: April 29, 2002
    Publication date: April 24, 2003
    Applicant: ATOFINA Chemicals, Inc.
    Inventors: Ramin Amin-Sanayei, Lawrence K. Wempe, Kurt Arthur Wood, Stefano Finocchiaro, Delphine Tillier
  • Patent number: 6541088
    Abstract: A composition which provides gas, flavor, and aroma barrier to substrates, where the composition is formed by mixing an ethylenically unsaturated acid, a bis-silane and a polyamine.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 1, 2003
    Assignees: EG Technology Partners, L.P., Dow Corning Corporation, Dow Corning S.A.
    Inventors: Imtiaz J. Rangwalla, John E. Wyman, Patrick Jacques Jean Merlin, Shrenik Mahesh Nanavati, Lisa Marie Seibel, Laurence Gallez
  • Patent number: 6537615
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: March 25, 2003
    Assignee: Paper Technology Foundation Inc.
    Inventors: Charles John Gilfert, Dimitris Ioannis Collias, Steven Michael Schennum
  • Patent number: 6537616
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: March 25, 2003
    Assignee: Paper Technology Foundation Inc.
    Inventors: Charles John Gilfert, Dimitris Ioannis Collias, Steven Michael Schennum
  • Patent number: 6469120
    Abstract: The composition formed by mixing an organosilane, optionally having a nonhydrolizable organic group, but having one or more hydrolyzable groups, with a polyol containing at least two hydroxy groups, wherein at least any two of the hydroxy groups are separated by no more than two intervening atoms. Water-stabilized organosilane compounds. A water stable composition made from the polyol and organosilane or compound and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article. A method of making a siloxane in the presence of a stabilizer.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: October 22, 2002
    Assignee: BioShield Technologies, Inc.
    Inventors: Jacques E. Elfersy, Joachim Berkner, Timothy C. Moses
  • Patent number: 6461469
    Abstract: A finished product from lignocellulose, such as a length of wood or chipboard, is impregnated with a composition containing a thermosetting resin in a nonaqueous solvent, and a styrene polymer in a nonaqueous solvent. Excess impregnating composition is removed from the impregrnated material. The solvent or solvents are also removed. The thermosetting resin may thereafter be subjected to temperature conditions for polymerization to form a finished product.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: October 8, 2002
    Assignee: Windsor Technologies Limited
    Inventor: Michael Windsor Symons
  • Patent number: 6403162
    Abstract: Disclosed are a method for making an ink-jet recording material which comprises adding silica fine particles having an average primary particle diameter of 50 nm or less to a dispersion medium mainly comprising water containing a cationic polymer having a weight average molecular weight of 100,000 or less and mixing to prepare a slurry of silica fine particles; dispersing the slurry of silica fine particles by a dispersing machine to prepare a dispersion of silica fine particles; mixing the dispersion of silica fine particles with at least a hydrophilic binder to prepare a coating solution for forming an ink-receptive layer; and coating the coating solution for forming an ink-receptive layer on a support and drying, a method for preparing a dispersion of silica fine particles and the silica dispersion.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: June 11, 2002
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Yukio Tokunaga, Tetsuya Ashida, Hajime Sugita
  • Patent number: 6335058
    Abstract: A method of manufacturing a finished product from a length of a lignocellulosic material, such as a length of solid wood or chip board, includes the steps of impregnating the length of lignocellulosic material through its depth with an impregnating composition comprising a mineral oil, a non-aqueous solvent for the material oil such as dichloromethane or super critical carbon dioxide, and a thermosetting resin and, if necessary, a catalyst therefore dissolved in the mineral oil and solvent. Thereafter, the non-aqueous solvent is removed and the product is subjected to an elevated temperature to polymerize the thermosetting resin to bind the mineral oil into the lignocellulosic material.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: January 1, 2002
    Assignee: Windsor Technologies Limited
    Inventor: Michael Windsor Symons
  • Patent number: 6326060
    Abstract: Polymer polysaccharide is added to a PVA coating liquid so that a density of the polymer polysaccharide is within the range between 0.05% and 0.5% by weight with respect to the PVA coating liquid. Next, a coating liquid layer is formed on a web by coating the web with the PVA coating liquid to which the polymer polysaccharide is added so that a temperature of the PVA coating liquid is within the range between 20° C. and 40° C. at the coating. Then, the coating liquid layer on the web is dried after it is preliminarily dried so that a temperature of the coating liquid layer is maintained at a temperature that is 3° C. lower than the temperature of the PVA coating liquid or lower for three seconds or more.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: December 4, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shotaro Ogawa
  • Patent number: 6284097
    Abstract: A method of producing paper webs coated on both sides includes the following steps: a) indirectly applying a liquid onto the paper web by passing the web through at least one nip formed by a roll and a counterelement, whereafter the web is dried; b) next, directly applying coating mixture at surplus only on one side of the web, whereafter the surplus coating mixture is removed again by use of a doctor element, the web being dried again thereafter; and c) lastly, directly applying coating mixture at surplus only on the other web side, whereafter the surplus coating mixture is removed by use of a doctor, whereafter the web is dried again. In the indirect application of liquid in the nip, or in the nips, either coating mixture to produce so-called MWC papers or a sizing suspension to produce so-called LWC papers is selectively applied.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: September 4, 2001
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Hans-Jürgen Wulz, Rüdiger Kurtz, Gerhard Kotitschke, Bernhard Kohl, Peter Petermann, Erhard Gruber
  • Patent number: 6248402
    Abstract: A method for treating wood in which the wood to be treated is placed in a chamber in which a vacuum is produced, where the chamber is filled with a hardening product, in particular a monomer, so as to impregnate the wood by causing the product to penetrate the space between its fibers, where the product is hardened, in particular by polymerization. This method is characterized in that the wood impregnating operation is preceded by a step of controlled thermal treatment.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: June 19, 2001
    Assignee: NOW - New Option Wood
    Inventors: René Guyonnet, Pierre Gohar
  • Patent number: 6217939
    Abstract: A wood treatment process in which lignocellulosic materials are treated for several hours in a liquid bath of oil with the exclusion of oxygen. The liquid bath at that time has a temperature of 180 to 260° C. By thermal action the wood substance is converted, so that some properties of these materials are altered. Resistance against wood-destroying fungi, for example, is improved.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: April 17, 2001
    Assignee: Martin Menz
    Inventors: Michael Sailer, Andreas Otto Rapp
  • Patent number: 6207227
    Abstract: A cleaning sheet with a tacky surface coating is used to clean feed rollers in copying machines or similar equipment and similarly-coated cloths are used for the removal of particles from other surfaces to be cleaned. The cleaning articles are made by printing the tacky material on sheet material such as paper or cloth. Relatively thick layers of tacky material are applied quickly and economically by the use of a multi-stage printing press which builds up a thick layer from a plurality of thin layers.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: March 27, 2001
    Assignee: The Texwipe Company LLC
    Inventors: Peter B. Russo, Barry M. Scott
  • Patent number: 6190729
    Abstract: A method and apparatus for two-side coating of a light base weight printing paper web containing mechanical pulp or recycled fiber. The first side of a web (5) is coated in a first coating station (1), the coating applied to the first side is dried at least partially in a first dryer unit (3). The second side of the web (5) is coated subsequent to the drying of the first side in a second coating station (2), and the coating applied to the second side is dried at least partially in a second dryer unit (4). Both coatings are formed by applying a required amount of coating mix onto the perimeter of respective soft film-coating rolls (22) and subsequently transferring the coat film to the web (5) in a nip (N1) formed between a respective backing roll (24) and the respective soft film-coating roll (22).
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: February 20, 2001
    Assignees: Valmet Corporation, Metsä-Serla Paperi Ja Kartonki Oy
    Inventors: Rauno Rantanen, Kai Vikman
  • Patent number: 6187430
    Abstract: An ink jet recording sheet having a high gloss and ink absorbing property and capable of recording clear ink images having a high and uniform color density, includes a cast-coated ink-receiving layer formed on a substrate sheet and containing fine silica particles with an average primary particle size of 3 to 40 nm and an average secondary particle size of 10 to 400 nm and a binder.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: February 13, 2001
    Assignee: Oji Paper Co., Ltd.
    Inventors: Shunichiro Mukoyoshi, Shinichi Asano, Hirokazu Sunagawa, Hideo Ikezawa
  • Patent number: 6120841
    Abstract: A fabric made of fibers of a carbon-precursor cellulose material is impregnated with a composition containing at least one inorganic ingredient having a function of promoting dehydration of cellulose, and the fabric is subjected to heat treatment. This treatment consists in raising temperature at a speed lying in the range 1.degree. C./min to 15.degree. C./min followed by keeping the temperature constant in the range 350.degree. C. to 500.degree. C., and it is followed by a step of washing the fabric. This produces directly an activated fabric of carbon fibers having a specific surface area of not less than 600 m.sup.2 /g, without subsequent activation treatment at a higher temperature.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: September 19, 2000
    Assignee: Messier-Bugatti
    Inventors: Philippe Parmentier, Veronique Fontarnou, Ludovic Ouvry
  • Patent number: 6117491
    Abstract: The present invention concerns a process and a coating color for coating a cellulosic web. According to the process an aqueous coating color is applied on the surface of the web. The invention comprises using a coating color which contains an aqueous polymer whose viscosity in an aqueous solution increases when the temperature rises. Preferably, methylcellulose or a corresponding polymer having a gelling temperature of about 5 to 10 .degree. C. more than the application tempature of the coating color is used. The temperature of the coating is increased after the application of the coating color in order to achieve gelling of the polymer. As a result, the coating color rapidly solidifies which decreases the amount of mixture being recycled and it reduces mist-formation in the film press method and improves coverage of coating applied by conventional blade coating.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: September 12, 2000
    Assignee: Metsa-Serla Oy
    Inventors: Anne Rutanen, Petri Silenius, Jyrki Kettunen
  • Patent number: 6113989
    Abstract: A tannin stain inhibiting latex paint composition for application to wood based on an alkaline latex suspension of a polymer in water is provided with a tannin-stain inhibiting additive. The additive includes effective amount for stain inhibition of a non-acidic compound selected from ammonium zirconium carbonate, sodium zirconium carbonate or potassium zirconium carbonate.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 5, 2000
    Assignee: Wayne Pigment Corp.
    Inventor: John Sinko
  • Patent number: 6106902
    Abstract: A method and apparatus for coating a moving web of paper of paper-board. In the method, the web to be coated is passed to a coater station, wherein a coat layer is applied to at least one surface of the web, and the web is dried at least to some degree and passed to the next treatment step. The coat is applied by spraying the coating mix on the web surface by a high-pressure spraying nozzles, the pattern width covered by a single nozzle is essentially narrower than the cross-machine width of the web being coated.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 22, 2000
    Assignee: Valmet Corporation
    Inventors: Jukka Koskinen, Erkki Kirveskari, Vilho Nissinen, Jorma Kinnunen, Seppo Luomi