Cellulosic Next To Another Cellulosic Patents (Class 428/534)
  • Patent number: 7879252
    Abstract: A functional cotton spray composition includes: 100 parts by weight of cotton fibers having a length of 3 mm or less; 0.5 to 5 parts by weight of a phase change material; 0.5 to 1 parts by weight of a titanium dioxide photoactive catalyst; 0.5 to 2 parts by weight of at least one natural pigment selected from the group consisting of a pine needle powder, a green tea powder, a mugwort powder, an indigo plant powder, a gardenia powder, a charcoal powder and a yellow soil powder; 0.5 to 5 parts by weight of a dispersant; 5 to 20 parts by weight of a viscosity improver; 10 to 20 parts by weight of an organic flame retardant; 5 to 15 parts by weight of an inorganic flame retardant; 0.5 to 3 parts by weight of an antimicrobial and antifungal agent; and 300 to 600 parts by weight of viscosity-controlling water.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 1, 2011
    Inventor: Chang Ha Lim
  • Publication number: 20100330376
    Abstract: Polysaccharide thermosetting systems and composites utilizing such systems include formaldehyde free binders formed from at least one polysaccharide and at least one polysaccharide crosslinker.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 30, 2010
    Applicant: AKZO NOBEL N.V.
    Inventors: Ralph Trksak, Daniel B. Solarek, Solweig Vitry, Klin A. Rodrigues, Qingwen Wendy Yuan-Huffman, Andreas Puhlfuerss
  • Publication number: 20100323187
    Abstract: Described are panels including a surface layer on a substrate. The surface layer includes a) cellulose fibers, b) at least one binder and (c) wear resistant particles. The use of different panels and a method for manufacturing is also described.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 23, 2010
    Applicant: FLOORING TECHNOLOGIES LTD.
    Inventor: Norbert Kalwa
  • Patent number: 7799411
    Abstract: A cellulosic fibrous structure product having one or more plies. At least one of the plies has one or more unembossed areas, and the one or more unembossed area has a macroscopic first surface and a macroscopic second surface. The fibrous structure product also has a first wall which forms vertices with the first surface and the second surface. In addition, the first wall and the second surface form a top side wall angle of from about 90° to about 140°.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: September 21, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Ward William Ostendorf, Rebecca Howland Spitzer
  • Publication number: 20100203348
    Abstract: Some embodiments of the invention generally relate to a moisture barrier coating that is biodegradable and compostable. Some embodiments also relate to a coating that is dual ovenable. Such coatings may be used to increase moisture resistance and provide non-stick or release characteristics when applied to biodegradable and compostable disposable food packaging and food service items. In some embodiments, a plasticizer, an amide wax and optionally a rosin are added to a cellulose-ester-based coating to increase moisture resistance. In other embodiments, a biodegradable polymer, an amide wax, optionally a plasticizer, and optionally a rosin are added to a cellulose-ester-based coating to drastically increase moisture resistance. In still other embodiments, phospholipids or medium-chain triglycerides or increased levels of amide wax may be added to the either of the embodiments above to provide enhanced release characteristics.
    Type: Application
    Filed: January 21, 2010
    Publication date: August 12, 2010
    Inventors: David A. Dellinger, Elie Helou, JR., Drew V. Speer, Dwight W. Schwark
  • Publication number: 20100190022
    Abstract: Composite panels may be prepared using a moisture resistance additive having a formulation that includes a triglyceride having a saponification value of at least 150 and an iodine value of at least 35. The additive may be used in the form of a water emulsion. The water emulsion may be prepared by dispersing the components of the additive formulation under conditions sufficient to at least partially saponify the triglyceride. The moisture resistance additive can impart resistance to moisture absorption and thickness swelling to composite panels prepared therewith.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 29, 2010
    Inventor: Steven J. Wantling
  • Patent number: 7749583
    Abstract: A paperboard including a solid bleached sulfate paperboard substrate and a coating applied to the paperboard substrate to form a coated structure, the coated structure having a basis weight, a caliper thickness and a Parker Print Surf smoothness, the Parker Print Surf smoothness being at most about 3 microns, the basis weight being at most about Y1 pounds per 3000 ft2, wherein Y1 is a function of the caliper thickness (X) in points and is calculated as follows: Y1=3.79+13.43X?0.1638X2.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: July 6, 2010
    Assignee: Meadwestvaco Corporation
    Inventors: Gary P. Fugitt, Terrell J. Green, Steve G. Bushhouse, Steven Parker, Jason Richard Hogan, Wei-Hwa Her, Scott Ginther
  • Publication number: 20100021753
    Abstract: Disclosed are articles and multi-zoned structures comprising a core zone comprising a wood polymer composition comprising a blend of cellulosic material and a thermoplastic polymeric resin; a cap zone disposed overlying at least a portion of the core zone comprises at least a portion of a surface of the multi-zoned structure; and, optionally, a transition zone disposed between the cap zone and the core zone. The articles are useful as wood polymer composites for use as planks, decking, stair treads, window casings, fencings, automobile interiors and pallets.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 28, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Sassan Hojabr, Christopher Michael Barr, Penny L. Perry
  • Publication number: 20090311478
    Abstract: Multi-ply fibrous structures and more particularly to multi-ply fibrous structures that employ fibrous structure plies that contain different fiber compositions and methods for making such multi-ply fibrous structures are provided.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 17, 2009
    Inventors: Matthew Fredrick Ehlerding, Guillermo Mitias Vidal, Luis Bernando de la Rosa
  • Patent number: 7592060
    Abstract: A method of preparing a cellulosic article includes a step of combining cellulosic material and binder resin to form treated cellulosic material. A mat is formed of a plurality of layers of the treated cellulosic material. The method also includes the steps of interfering with bonding of resin between two adjacent layers of the mat, and applying heat and pressure to the mat to form a cellulosic composite article having an internal blistered pattern. A consolidated cellulosic article includes a consolidated cellulosic mat and a layer of blisters disposed in the consolidated cellulosic mat.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: September 22, 2009
    Assignee: Masonite Corporation
    Inventor: Dennis H. Vaders
  • Publication number: 20090169908
    Abstract: There is provided a method for producing a cellulose resin film, with which the deterioration of the entire film and the occurrence of die lines can be prevented. The method for producing a cellulose resin film, including the steps of: discharging two cellulose resins A and B molten in the respective extruders in the form of an A/B/A three-layer sheet from a die upon a support by co-extrusion; and cooling and solidifying the sheet-shaped molten resin into a film, wherein the resin A, which forms a pair of outer layers of the A/B/A three-layer sheet, has a number average molecular weight smaller than that of the resin B, which forms the inner layer of the A/B/A three-layer sheet, and the resin A has a number average molecular weight of 20,000 or more and 50,000 or less, and the resin B has a number average molecular weight of 30,000 or more and 100,000 or less.
    Type: Application
    Filed: September 5, 2006
    Publication date: July 2, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Tadashi Ueda
  • Publication number: 20090104458
    Abstract: Disclosed is a functional cornstalk board and a preparation method thereof. The functional cornstalk board of the present invention includes 1 to 10 parts by weight of a curing agent, based on the total weight of the mixture of 6 to 10 parts by weight of cornstalk and 0.2 to 2 parts by weight of a binder or silicate, wherein the functional cornstalk board is obtained by molding the raw material at a molding temperature of 120 to 210° C. and a molding pressure of 10 to 30,000 kgf/cm2 for a molding time of 0.5 to 20 minutes using the semiautomatic or multistage automatic heat press device. The functional cornstalk board of the present invention is a cornstalk plywood material having a bending strength of 300 to 750 kgf/cm3, a density of 0.5 to 0.
    Type: Application
    Filed: March 23, 2006
    Publication date: April 23, 2009
    Inventor: Hai-il Ryu
  • Patent number: 7482064
    Abstract: Disclosed is a composite wood component having upper and lower surface layers and a core layer; a first glueline layer; a second glueline layer; and an overlay layer.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: January 27, 2009
    Assignee: Huber Engineered Woods LLC
    Inventor: Brian Christopher Gerello
  • Patent number: 7462400
    Abstract: Disclosed herein are a caster-resistant surface laminate using a synthetic resin and a flooring comprising the surface laminate. The surface laminate utilizes buffering properties of a synthetic resin layer, thus minimizing damage to the surface of the flooring. The surface laminate uses a resin selected from PVC, PE, PET, PETG, PCTG and PU in order to enhance the caster resistance, impact resistance and water resistance. As a result, the surface laminate has improved physical properties without occurrence of damage, such as hollowing and breakage, caused by external impacts, as compared to conventional surface laminates. In addition, the caster-resistant surface laminate attains interior decorative effects by coloration of the synthetic resin layer.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 9, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Byung-Hyun Roh, Gun-Soo Chung, Ill-Hong Min, Seog-Goo Kang, Sung-Hoon Yue
  • Publication number: 20080220237
    Abstract: Disclosed is a three-dimensional structure (4) consisting of natural fibers in the form of matting, panels, hollow bodies, molded parts or the like, wherein the natural fibers are fibers of the hop plant, particularly the stems (1) of the hop. Hitherto, only the umbellae of hops were used, particularly for the brewing of beer, wherein the rest of the plant was removed in a variety of manners. The invention makes it possible to also use the stems (1) of the hop plant, which make up the largest part of the plant, and optionally the leaves of the hop plant, for the production of the three-dimensional structure. The stems (1) of the hops can be used for certain products, even together with metal wires adhering thereto after harvesting. The invention also relates to a method for further processing the hop plant relieved of the umbellae and to various uses of the structure.
    Type: Application
    Filed: March 14, 2005
    Publication date: September 11, 2008
    Inventor: Horst Korger
  • Patent number: 7396593
    Abstract: Tissue products are described that have been topically treated with a chemical additive, such as a softener. The softener may be, for instance, a polysiloxane. The polysiloxane is topically applied to a tissue sheet, such as a single ply sheet, so as to form a Z-directional gradient in the sheet. Particular, most of the polysiloxane remains on the surface of the tissue product as opposed to migrating to the center of the sheet. In this manner, tissue sheets are formed with improved softness at lower levels of polysiloxane and without the need for applying any surfactants to the sheet. A system for applying chemical additives to tissue sheets is also described. The system includes a chemical additive applicator, such as a meltblown die that emits the chemical additive through a plurality of orifices. In one embodiment, the system includes a device for periodically cleaning the orifices during application of the chemical additive.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: July 8, 2008
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kou-Chang Liu, Tom G. Shannon, Peter J. Allen, Geof Carlow, Mike Goulet, Paul Burden, Greg Aykens, Joe Capizzi, Thomas Hunt, Diane Linskens, Roger Wendler, John Wnek
  • Patent number: 7348067
    Abstract: A laminate composite sheet comprising a two-ply base layer comprised of a bottom ply and a top ply, wherein the bottom ply is comprised of unbleached cellulosic fibers and wherein the top ply is comprised of bleached or brightened cellulosic fibers and a further layer attached to the top ply with a layer of adhesive; said further layer having a top and a bottom surface, said further layer selected from the group consisting of paper or film; said layer of adhesive containing no pigment, and said top surface of said further layer having no coating.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 25, 2008
    Assignee: The Hoffman Group
    Inventor: Roger P. Hoffman
  • Patent number: 7329454
    Abstract: A method of preparing a cellulosic article includes a step of combining cellulosic material and binder resin to form treated cellulosic material. A mat is formed of a plurality of layers of the treated cellulosic material. The method also includes the steps of interfering with bonding of resin between two adjacent layers of the mat, and applying heat and pressure to the mat to form a cellulosic composite article having an internal blistered pattern. A consolidated cellulosic article includes a consolidated cellulosic mat and a layer of blisters disposed in the consolidated cellulosic mat.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 12, 2008
    Assignee: Masonite Corporation
    Inventor: Dennis H. Vaders
  • Patent number: 7300705
    Abstract: Methods for esterifying hydroxyl groups in cellulose, hemicellulose, and lignin in wood are described, wherein the wood is chosen from loblolly, slash, shortleaf, longleaf or radiata pines. Methods can include solvent drying techniques and heating provided by electromagnetic radiation, such as microwave, and radiofrequency. Products made from the methods are described that have greater decay resistance and dimensional stability as compared with non-esterified wood products.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Amar N. Neogi, Gary D. Peterson, James Shaw
  • Patent number: 7241508
    Abstract: An improved pigment-coated paper is provided which enables the use of a non-acidic basesheet in the manufacture of a fragrance release paper. The non-acidic basesheet, compared to the conventionally used acidic basesheet, is brighter and less brittle, and therefore imparts improved visual effects and reduces the likelihood of cracking. The clay-based coating composition is mildly alkaline when wet (pH between 7.5 and 8.5) and upon drying on the basesheet, becomes mildly acidic (pH between 6.0 and 7.0). A method of making the improved pigment-coated paper using a non-acidic basesheet in the manufacture of a fragrance release paper is provided, comprising the steps of preparing the basesheet, applying the premixed pigment coating composition using rollers and blade leveling devices, and drying the pigment coating composition. A fragrance sample construction, for use in magazines, catalogs, leaflets, etc.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 10, 2007
    Assignee: West Linn Paper Company
    Inventors: Christopher James Corrigan, David Randolph Goss
  • Patent number: 7205052
    Abstract: A wood product is made from treating wood with two solutions, in series, including a penetrating solution and a topcoat composition. The penetrating solution is made up of boric acid, a metallocene catalyst, a free radical initiator, a first film-forming polymer and an adhesion promoter. The topcoat includes a second continuous film-forming polymer. Application of the penetrating solution to the wood gets the solution into the wood to cross-link boric acid with cellulose fibers, then the topcoat forms the continuous film. The topcoat seals in the penetrating solution so that it does not leach out during subsequent exposure to water and weather, allowing soluble salts such as borax to migrate and infiltrate deeper into the wood. Microbiological growth is prevented by several mechanisms.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: April 17, 2007
    Assignee: HBF, Inc.
    Inventors: Eric R. Hart, Mark D. Brown
  • Patent number: 7189464
    Abstract: In a multi-layer structure of a cellulose acylate film, the averaged degree of acylation of surface layers is controlled in the range of 0.5 to 2.8 by mixing several sorts of cellulose acylates having different averaged degrees of acyation. One of the surface layers is formed on a substrate by casting a solution containing cellulose acylate made of cotton linter. Lubricant particles are added to a solution for the surface layers, and emission compounds to a solution for the inner layers. The obtained cellulose acylate film is excellent in adhesive property to the hydrophobic material without saponification, and adequately used for the polarizing filter, an optical compensation sheet, and liquid crystal display.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: March 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masaru Sugiura
  • Patent number: 7175905
    Abstract: Composite coated wood products, and methods to produce such products, are described by embodiments of the invention. Composite layers may comprise polymer and fillers, such as organic fillers and inorganic fillers. The composite layers may also be foamed in some embodiments of the invention. Such composite coated wood products may be structural or non-structural pieces that may provide safe, economical, easy to manufacture construction products that may be utilized with wood composites, and other plastic composites. Such products may also promote uniformity of appearance in objects constructed with the composite coated wood products in a variety of applications.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: February 13, 2007
    Inventors: Barry James Curtis, Robert W. Beckwith, Richard Neisius
  • Patent number: 7128978
    Abstract: The present invention generally relates to a gloss coated paper having specific properties for enhanced toner adhesion. The critical specific properties of the paper include the combination of a thermal diffusivity of less than approximately 8.5 mm2/s, a polar liquid contact angle slope of less than approximately ?12.0 and a non-polar liquid contact angle slope of less than approximately ?5.5. A method of printing gloss coated paper in an electrophotographic apparatus includes forming an image with an electrophotographic toner in the electrophotographic apparatus and transferring the image to the gloss coated paper.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: October 31, 2006
    Assignee: Xerox Corporation
    Inventors: Gordon Sisler, Guiqin Song, Jingsong Tang, T. Brian McAneney
  • Patent number: 7022414
    Abstract: Molded skins and methods of making molded skins are disclosed. An embodiment of a skin includes a sheet having first and second surfaces, a first arcuate portion integral with the sheet, and a second arcuate portion integral with the sheet and adjacent to the first arcuate portion. The sheet includes a cellulosic material. The first arcuate portion includes a first surface and a second surface, each having an arc. The second arcuate portion includes a first surface and a second surface, each having an arc. An angle forming the arc of the first surface of the first arcuate portion is greater than 110 degrees and an angle forming the arc of the first surface of the second arcuate portion is less than 102 degrees.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: April 4, 2006
    Assignee: Jeld-Wen, inc.
    Inventors: Glenn Davina, Stanley K. Meyers
  • Patent number: 6977111
    Abstract: Disclosed is a multi-layer paper suitable as a material for preparing heat-sensitive stencil printing masters. The multi-layer paper is produced by combining a plurality of thin paper layers by paper making. The multi-layer paper has a peel strength of 10 N/m or less and may be delaminated into at least two tissue sheets.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: December 20, 2005
    Assignees: Ricoh Company, Ltd., Tohoku Ricoh Co., Ltd., Mishima Paper Co., Ltd.
    Inventors: Hideyuki Yamaguchi, Hiroshi Tateishi, Ippei Kato, Munenaka Koyama, Yoshihiro Mimura
  • Patent number: 6916402
    Abstract: Articles containing cellulose materials and treated with a chemical additive are disclosed. In accordance with the present invention, at least a portion of the cellulose containing the article is modified to include a first moiety. A chemical additive, such as softener or a humectant, is then chosen that includes a second moiety. When the chemical additive is applied to the article, the second moiety on the chemical additive forms a chemical linkage with the first moiety on the cellulose material. In this manner, the chemical additive becomes bonded to the cellulose material alleviating problems associated with retention. In one embodiment, the present invention is directed to the formation of tissue products, such as facial tissue, bath tissue and paper towels.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: July 12, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Thomas G. Shannon, Gil Bernard Didier Garnier, Alberto Ricardo Negri, Mike T. Goulet
  • Patent number: 6896971
    Abstract: A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate. The kraft sheet thus coated may be used to form a laminate panel.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: May 24, 2005
    Assignee: Premark RWP Holdings, Inc.
    Inventors: Joel Lane Williams, Earl Soudelier, Donald M. Marshall, Robson Mafoti
  • Patent number: 6858293
    Abstract: Disclosed is an integral film comprising a transparent polymeric substrate having a surface bearing polymeric beads, wherein the swell ratio, the size, and the laydown of the beads are selected so as to provide both a one sided static friction coefficient of not more than 0.68 and an internal haze value of not more than 0.1. The film provides an improved combination of slip and optical properties.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: February 22, 2005
    Assignee: Eastman Kodak Company
    Inventors: Linda S. Flosenzier, Dennis E. Smith, Roland J. Koestner, William J. Gamble
  • Patent number: 6849665
    Abstract: Described is a water-absorbent composition containing from 30 to 100% by weight, based on the water-absorbent composition, of water-insoluble water-swellable hydrogels characterized by the following features: Centrifuge Retention Capacity (CRC) of at least 24 g/g, Saline Flow Conductivity (SFC) of at least 80×10?7 cm3 s/g and Free Swell Rate (FSR) of at least 0.15 g/g s and/or Vortex Time of not more than 160 s.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 1, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Frenz, Norbert Herfert, Ulrich Riegel, William E. Volz, Thomas H. Majette, James Hill
  • Patent number: 6844081
    Abstract: A wood product is made from treating wood with two solutions, in series, including a penetrating solution and a topcoat composition. The penetrating solution is made up of boric acid, a metallocene catalyst, a free radical initiator, a first film-forming polymer and an adhesion promoter. The topcoat includes a continuous film-forming polymer. Application of the penetrating solution to the wood gets the solution into the wood to cross-link boric acid with cellulose fibers, then the topcoat forms the continuous film. The film seals in the penetrating solution so that it does not leach out during subsequent exposure to water and weather, allowing soluble salts such as borax to migrate and infiltrate deeper into the wood. Microbiological growth is prevented by several mechanisms.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: January 18, 2005
    Assignee: HBF, Inc.
    Inventors: Eric R. Hart, Mark D. Brown
  • Patent number: 6838187
    Abstract: An aqueous adhesive composition with good release properties. A preferred embodiment comprises sodium lauryl sulfate and a modified tapioca dextrin.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: January 4, 2005
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Edmund W. Figiel, Melissa Allen, Peter D. Pierce, Kristina L. Thompson
  • Patent number: 6828067
    Abstract: An ablatable, direct write imaging medium includes a polymeric matrix having a carbon pigment and an ultraviolet absorbing dye therein. The carbon pigment functions to absorb relatively long wavelengths of light to cause ablation of the medium. The ultraviolet absorbing dye gives the ablation-imaged medium high optical density in ultraviolet portions of the spectrum.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: December 7, 2004
    Assignee: Precision Coatings, Inc.
    Inventors: Norman Sweet, Scott Zavada
  • Publication number: 20040219382
    Abstract: Molded skins and methods of making molded skins are disclosed. An embodiment of a skin includes a sheet having first and second surfaces, a first arcuate portion integral with the sheet, and a second arcuate portion integral with the sheet and adjacent to the first arcuate portion. The sheet includes a cellulosic material. The first arcuate portion includes a first surface and a second surface, each having an arc. The second arcuate portion includes a first surface and a second surface, each having an arc. An angle forming the arc of the first surface of the first arcuate portion is greater than 110 degrees and an angle forming the arc of the first surface of the second arcuate portion is less than 102 degrees.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventors: Glenn Davina, Stanley K. Meyers
  • Publication number: 20040175575
    Abstract: In a multi-layer structure of a cellulose acylate film, the averaged degree of acylation of surface layers is controlled in the range of 0.5 to 2.8 by mixing several sorts of cellulose acylates having different averaged degrees of acyation. One of the surface layers is formed on a substrate by casting a solution containing cellulose acylate made of cotton linter. Lubricant particles are added to a solution for the surface layers, and emission compounds to a solution for the inner layers. The obtained cellulose acylate film is excellent in adhesive property to the hydrophobic material without saponification, and adequately used for the polarizing filter, an optical compensation sheet, and liquid crystal display.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 9, 2004
    Inventor: Masaru Sugiura
  • 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: 6746736
    Abstract: The present invention is a composition for use as an oil and grease resistant coating for packaging materials including a radiation sensitive monomer; a photopolymerization initiator; and an additive, wherein the additive preferably is a chlorinated paraffin. Preferably, the composition is used to treat the surface of a paper or paperboard substrate and the substrate preferably is used subsequently in the manufacture of packaging materials, such as pet food bags.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 8, 2004
    Assignee: Actinic, Inc.
    Inventors: Timothy Jon Leeper, Joy Michelle Thomas
  • Patent number: 6727004
    Abstract: Multi-ply paper towels are disclosed which have a combination of high absorbent capacity and a high rate of absorbency. These properties are the result of a combination of the intra-ply fiber structure and a network of inter-ply wet-collapse resistant channels that distribute and retain absorbed liquid.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: April 27, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Mike Thomas Goulet, Mark Alan Burazin, Yu Cui
  • Patent number: 6716522
    Abstract: The present invention has for its object to provide a molded article of a thermoplastic composite material which is not only durable with little discoloration or fading even on prolonged outdoor exposure and is very satisfactory in physical properties and appearance qualities inclusive of wood-like texture but also has high productivity and good economics. The present invention is a method of producing a molded article of a thermoplastic composite material comprising extruding the thermoplastic composite material containing a thermoplastic resin and a vegetable filler, said vegetable filler content being 50 to 90 weight % of the total weight of said thermoplastic resin and said vegetable filler, wherein extrusion is carried out by means of an extrusion apparatus comprising at least an extruder, a hot shaping die, and a cooling die, said hot shaping die and cooling die being directly coupled.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: April 6, 2004
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Koji Matsumoto, Masaki Ito, Koushi Kawabata, Keisuke Hashimoto, Mitsuo Okubo
  • Patent number: 6709762
    Abstract: The invention provides a sewage purification assist toilet paper that carries pineapple enzyme and at least one powdery additive selected from slag, porous ore, and activated carbon. The pineapple enzyme and additive decompose salinity and chlorides contained in toilet sewage which otherwise would inhibit the growth of microorganisms used in the biological treatment of sewage taking place not only in individual septic tanks but also in public sewage systems.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: March 23, 2004
    Inventor: Shizuo Uyama
  • Patent number: 6703140
    Abstract: Sandwich type board, for application in the construction field, of the type comprised of side and counterside, which has the following successive layers, from the center to the outside: a cellulose core impregnated in phenolic resin, a cellulose film impregnated in melamine, a laminated wood panel treated with phenolic resin, a tone package of one to three translucent and/or transparent films of cellulose, each of them impregnated in a resin to be chosen between melamine, melamine-acrylic, phenolic, melamine-phenolic, a multi-layer transparent/translucent acrylic film and a surface finish obtained by means of a demoulding film in the board press process.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: March 9, 2004
    Assignee: Prodema, S.A.
    Inventor: Javier Ayestaran
  • Patent number: 6692801
    Abstract: The present invention provides a method for producing a packaging laminate having excellent gas barrier properties. The method involves applying a solution or dispersion of starch or starch derivative to a surface of a substrate of paper or paperboard, and applying a layer of plastic to said starch or starch derivative so as to modify the properties of same such that the starch or starch derivative provides a gas barrier property.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: February 17, 2004
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Mikael Berlin, Ib Leth, Mats Bentmar
  • Publication number: 20040028933
    Abstract: A furan polymer impregnated wood which is uniform in colour and density throughout the treated zone. In order to obtain the polymer impregnated wood, a parent wood has been impregnated with a mixture containing polymerizable organic compounds of at least furfuryl alcohol and one further compound. The invention also relates to a method for preparing a furan polymer impregnated wood and uses thereof.
    Type: Application
    Filed: September 4, 2003
    Publication date: February 12, 2004
    Inventor: Marc H Schneider
  • Patent number: 6645616
    Abstract: The invention relates to a laminated board grade structure used for low cost, enhanced graphics packaging. The product contains an unbleached or bleached substrate board and a lightweight coated unprinted white paper grade laminated to the unbleached board substrate to produce a product with a smooth coated, glossy surface for quality graphics printing.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: November 11, 2003
    Assignee: International Paper Company
    Inventors: Timothy S. Sammarco, Thomas Z. Fu, William L. Brown, Alexander A. Koukoulas
  • Publication number: 20030148134
    Abstract: A dope is prepared by quickly and completely dissolving a polymer in a solvent. The solvent is supplied from a solvent tank to a solution tank. A measuring apparatus measures 15 to 20% by weight of a polymer with respect to the solvent and feeds the polymer to the solution tank. 5 to 15% by weight of a plasticizer with respect to the polymer is fed from a plasticizer tank to the solution tank. Stirring is carried out at 80 rpm for 30 minutes using a stirring blade in the solution tank so as to obtain a roughly dissolved solution. The roughly dissolved solution is heated at 85° C. for 10 minutes with a heater, so that all components necessary for a dope are dissolved, and only impurities are filtrated with a filtration filter. This filtrate is supplied to a dope tank, and it is used as a dope which is used in production of a film by solution film processing. A film produced from the dope has a retardation of 40 nm, and the film has little optical anisotropy and excellent optical performances.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 7, 2003
    Inventors: Seiichi Ono, Tsuneo Kawase
  • Patent number: 6596416
    Abstract: A decorative laminate is provided which includes one or more cellulosic core sheets, one or more decor sheets and optional overlay sheets. In one embodiment, one or more of the overlay sheets and/or decor sheets are impregnated prior to lamination with a mixture of a transparent resin and a photoluminescent material. As a result, the entire upper surface of the laminate visibly luminesces in the presence of exciting radiation. In another embodiment, an image or pattern is printed on one or more of the decor sheets with a ink including an organic photoluminescent material to provide an visibly luminescent image or pattern therein. It is envisioned that the invention could be used to provide a unique and appealing appearance when used as the surfacing for a wide variety of applications, including bowling lanes, game tables, counter-tops, dance floors, and signs such as “exit” signs.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: July 22, 2003
    Assignee: Pioneer Plastics Corporation
    Inventors: Daniel C. Nelson, Robert A. Dumond
  • Patent number: 6573203
    Abstract: The present invention may provide a towel desirably including first and second layers having cellulosic fibers and a repellant agent. The first and second layers may substantially sandwich a third layer having cellulosic fibers with higher absorbency than the first and second layers. All three layers may form a single ply.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: June 3, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wesley James McConnell, Jay Chiehlung Hsu, Joseph Mitchell
  • Patent number: 6544649
    Abstract: A hog fuel board is made by placing a hog fuel mat including an ammonium chloride catalyst with flexible non-sticking layers on outside surfaces between screens in a preheated platen press and pressing the mat to preset stops and for a predetermined time and pressure to cause adhesives naturally present in the hog fuel to disperse throughout the board. The presence of ammonium chloride as a catalyst uniformly distributed through the hog fuel mat significantly lowers the temperature required at the heating press platens to form a board which also has improved properties. There is also described a hog fuel veneer board with a hog fuel mat sandwiched between veneer sheets and a lumber product with a hog fuel coating thereon. These additional products are both formed using the ammonium chloride catalyst to reduce press temperatures and create a product with improved properties, particularly, internal bond strength.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Forintek Canada Corporation
    Inventor: Gary Ellis Troughton
  • Patent number: 6537680
    Abstract: Paper or paperboard laminate composed of at least one bulk-promoting layer, here termed the bulk layer, and on at least one side at the bulk layer at least one secondary layer, secondary layer and bulk layer being joined to one another directly or indirectly over basically the whole of their surfaces facing one another, 40-95% of the bulk layer consists of cellulose fibers with a freeness of 550-950 ml CSF, the secondary layer/layers has/have a greater density than the bulk layer, and the laminate has a bending stiffness index higher than 2.5 Nm7/kg3, but less than 14 Nm7/kg3, calculated as a geometric mean value for machine and transverse direction.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: March 25, 2003
    Assignee: Stora Kopparbergs Bergslags Aktiebolag (publ)
    Inventors: Leif Norlander, Annika Karlsson, Mats Fredlund
  • Publication number: 20020164495
    Abstract: An ablatable, direct write imaging medium includes a polymeric matrix having a carbon pigment and an ultraviolet absorbing dye therein. The carbon pigment functions to absorb relatively long wavelengths of light to cause ablation of the medium. The ultraviolet absorbing dye gives the ablation-imaged medium high optical density in ultraviolet portions of the spectrum.
    Type: Application
    Filed: April 11, 2002
    Publication date: November 7, 2002
    Inventors: Norman Sweet, Scott Zavada