With Lignocellulosic Material (i.e., Mixture Of A Lignocellulosic Material And A Carbohydrate Material Which Is Other Than A Lignocellulosic Material Or A Component Thereof) Patents (Class 106/162.5)
  • Patent number: 10119037
    Abstract: A cellulose acetate wood filler composition comprises a binder composition and a filler. The binder compositions comprise cellulose acetate, a plasticizer, and at least one organic solvent. The binder compositions may be substantially free, e.g., free of tackifiers. The wood filler compositions may be used in a method of filling a cavity in a substrate. The method comprises applying the wood filler composition to an inner surface of the substrate.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: November 6, 2018
    Assignee: ACETATE INTERNATIONAL LLP
    Inventors: Wendy Bisset, Xiaowei Zhang, Michael Combs
  • Patent number: 9512304
    Abstract: The present invention provides a method for producing a resin composition, which, by means of simple steps, can uniformly disperse microfibrillated plant fiber in a highly hydrophobic resin and can impart enhanced mechanical strength to a molding material obtained by molding the resin composition. The present invention further provides a resin composition having excellent heat resistance and low linear thermal expansion. The present invention relates to a method for producing a resin composition, the method including a step of mixing a thermoplastic resin or thermosetting resin (A), and modified plant fiber (b) or modified microfibrillated plant fiber (B), in the presence of an organic liquid (C), the modified plant fiber (b) or modified microfibrillated plant fiber (B) being obtained by modification with an alkyl or alkenyl succinic anhydride in a liquid capable of swelling microfibrillated plant fiber (B?) or plant fiber (b).
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: December 6, 2016
    Assignees: DIC Corporation, Seiko PMC Corporation, Kyoto University, Kyoto Municipal Institute of Industrial Technology and Culture
    Inventors: Hiroyuki Yano, Akihiro Sato, Tomoaki Yoshimura, Yuko Igarashi, Daisuke Kabusaki, Fumiaki Nakatsubo, Hiroaki Okumura, Takeshi Semba, Kazuo Kitagawa, Hiromasa Kataoka, Kazuhiro Shintani
  • Publication number: 20150107155
    Abstract: The present invention provides a mixture based on at least one organic waste component having particles that are equal to or smaller than 2 mm., at least one organic adhesive component and at least one organic plasticizer or emulsifying agent, for the manufacture of biodegradable planting pots. The invention also provides a method for automatically planting a plant, by using a container fitted for automatic planting, filled with the biodegradable planting pots of the invention.
    Type: Application
    Filed: May 9, 2013
    Publication date: April 23, 2015
    Applicant: BIOPLASMAR LTD.
    Inventor: Chanoch Samet
  • Patent number: 8979994
    Abstract: An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor, optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: March 17, 2015
    Assignee: Knauf Insulation SPRL
    Inventors: Carl Hampson, Gert Mueller, Charles Appley
  • Publication number: 20150033983
    Abstract: Building materials are generated by the simple mixing of cellulose nanofiber (CNF) slurry with typical wood-derived material such as wood meal, optionally with mineral particulate materials, and dried. Particle boards are made with wood meal particulates; wallboards are made with wood particulates and mineral particulates; paints are made with pigment particulates; and cement is made with aggregate particulates. The particle board samples were tested for fracture toughness. The fracture toughness was found to be from 20% higher up to ten times higher than the typical value for similar board, depending on the formulation. For cases of 20% by weight cellulose nanofibers and 80% wood, the fracture toughness was more than double that of typical particle board. The process sequesters carbon and oxygen into the building product for its lifespan—typically decades—and avoid releasing CO2 into the atmosphere.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Applicant: University of Maine System Board of Trustees
    Inventors: Michael A. Bilodeau, Douglas W. Bousfield
  • Patent number: 8808442
    Abstract: Hydraulically applied fiber matrix compositions for use on soils include a water-soluble, crosslinkable, hydratable gum, and a compound capable of crosslinking the water-soluble, crosslinkable, hydratable gum. The compositions may further include hydrocolloids and mulch. The hydraulically applied fiber matrix compositions are useful for hydroseeding and soil stabilization.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 19, 2014
    Assignee: Chemstar Products Company
    Inventors: Cory J. Bernu, Jeremy L. Bachman, Paul F. Werler
  • Publication number: 20140090577
    Abstract: Methods for making composite products are provided. In at least one specific embodiment, the method can include combining a plurality of lignocellulose substrates and one or more free radical precursors to produce a mixture of the lignocellulose substrates and the one or more free radical precursors. The method can also include maintaining the mixture at a temperature less than 60° C. for at least 10 minutes while retaining at least 11 wt % of the one or more free radical precursors charged to the mixture. The method can then include heating the mixture comprising at least 11 wt % of the one or more free radical precursors charged to the mixture to a temperature of at least 60° C. to about 300° C. to produce a composite product. The composite product can have a density less than 1 g/cm3 and an internal bond strength of at least 0.35 MPa.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: Georgia-Pacific Chemicals LLC
    Inventors: Adam K. Sniady, Cornel Hagiopol, Derek L. Atkinson, Bobby L. Williamson, John B. Hines
  • Publication number: 20140087122
    Abstract: Engineered wood may be produced with substituted cellulose ester adhesives. For example, an engineered wood may comprise a plurality of wood substrates that independently comprise a lignin-containing material (e.g., wood dust, wood particles, wood chips, and the like), the plurality of wood substrates being adhered together with an adhesive that comprises a substituted cellulose ester that comprises a cellulose polymer backbone having an organic ester substituent and an inorganic ester substituent that comprises an inorganic, nonmetal atom selected from the group consisting of sulfur, phosphorus, boron, and chlorine.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: Celanese Acetate LLC
    Inventors: Michael Combs, Thomas Garrett, Chad Prunesti, Martin Jakob, Yi (Julie) Li, Xiaoyan Tu
  • Patent number: 8623128
    Abstract: The present invention relates to extrudable ceramic masses and other masses which set as a result of baking or sintering, which masses comprise specific additives based on water-soluble cellulose ethers, an extrusion process, the extrudates and their use.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 7, 2014
    Assignee: Dow Wolff Cellulosics GMBH Co
    Inventors: Roland Bayer, Matthias Knarr
  • Patent number: 8585817
    Abstract: Provided is a biodegradable thermoplastic resin composition including a cellulose derivative and surface-treated natural fiber. More particularly, in preparation of the biodegradable thermoplastic resin composition including the cellulose derivative and the natural fiber, a surface of the natural fiber is treated with alkali and/or sized, thereby increasing a density of the natural fiber, and an interfacial adhesion between the cellulose derivative and the natural fiber to improve a mechanical strength of the biodegradable thermoplastic resin composition. Furthermore, as the cheap natural fiber is used as a reinforcer, the production cost can be reduced.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 19, 2013
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Young Kwan Lee, Mi Suk Cho, Chang Kyu Lee
  • Publication number: 20130276670
    Abstract: In the process of forming a wood pulp fiber and thermoplastic polymer composition the step of adding mineral oil to the composition during mixing.
    Type: Application
    Filed: September 27, 2012
    Publication date: October 24, 2013
    Inventors: Jason M. Cernohous, Neil R. Granlund
  • Publication number: 20130244524
    Abstract: A curable aqueous composition is disclosed comprising a carbohydrate, a crosslinking agent, and an amine base, wherein the curable aqueous composition has a pH adjusted by the amine base. Further disclosed is a method of forming a curable aqueous solution.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 19, 2013
    Applicant: Knauf Insulation GmbH
    Inventors: Brian Lee SWIFT, Ruijian XU, Ronald E. KISSELL
  • Publication number: 20130234356
    Abstract: The present invention provides a moldable mixture containing large portion of agricultural fibers and small portion of a binding agent and a flow-promoting filler material. The moldable mixture is substantially free of formaldehyde, with low moisture content and high draw ratio. The present invention also provides methods of manufacturing molded products and related parts, based on the claimed moldable mixture. Molded products (830) and related parts such as runner (810) and plank (820) with light weight, high density and more complex profile are manufactured by the claimed methods including steps of providing required materials for a moldable mixture, mixing the provided materials to form a moldable mixture, shaking the moldable mixture in preparing for compression molding and compression molding the moldable mixture to form molded products and related parts.
    Type: Application
    Filed: April 26, 2013
    Publication date: September 12, 2013
    Inventor: Teck Tin WONG
  • Publication number: 20130206036
    Abstract: A composition comprising 10 to 50 wt % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the average dispersion of the fibers within the thermoplastic polymer composition is equal to or greater than 90% as determined by the Dispersion Test. The pulp can be bleached chemical wood pulp fiber.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 15, 2013
    Applicant: WEYERHAEUSER NR COMPANY
    Inventor: WEYERHAEUSER NR COMPANY
  • Publication number: 20130206035
    Abstract: A composition comprising 10 to 50 weight % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the composition has a brightness of at least 20 as measured by the Brightness Test. The wood pulp fiber can be bleached chemical wood pulp fiber. The brightness may be at least 30 as measured by the Brightness Test.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 15, 2013
    Applicant: WEYERHAEUSER NR COMPANY
    Inventor: Weyerhaeuser NR Company
  • Publication number: 20130202905
    Abstract: Delignification of biomass consisting of plants containing lignin is done by utilizing an amino compound in an aqueous solution or emulsion to produce water soluble amino lignin and non-soluble amino lignin cellulose which are utilized to produce adhesives and resins for use to produce wood composites and carbohydrate production.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Inventor: David H. Blount
  • Patent number: 8496748
    Abstract: The invention relates to a polymer composition formed from a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article formed from the polymer composition. The molded article may be packaging material or fibrous material, in the form of fibrous material as a mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: July 30, 2013
    Assignee: Smartfiber AG
    Inventors: Stefan Zikeli, Thomas Endl, Michael Gert Martl
  • Patent number: 8497003
    Abstract: A glucose compound represented by Formula (I): wherein, R11 and R12 each independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, wherein one CH2 group or two or more non-adjacent CH2 groups in the alkyl and alkenyl groups may be replaced by O; L1 represents —OCO—*, —OCH2—* (binding to B at the * side), or a single bond; A and B each independently represent a trans-1,4-cyclohexylene group which may be substituted or a 1,4-phenylene group which may be substituted; and R13 and R14 each independently represent a hydrogen atom or an acyl group having 1 to 10 carbon atoms; and a cellulose composition, a cellulose film, an optical film, a polarizing plate, a liquid crystal display device, and a retardation-increasing agent which have the glucose compound.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 30, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Shimamura, Yoshiaki Hisakado, Naoyuki Nishikawa
  • Publication number: 20130017349
    Abstract: The present invention relates to a coated fiber based substrate comprising a dispersion coating wherein said dispersion coating comprises microfibrillated cellulose and colloidal particles of a polymer. The invention further relates to a package formed from said substrate, a dispersion coating and process for the production of mentioned substrate.
    Type: Application
    Filed: November 2, 2010
    Publication date: January 17, 2013
    Applicant: STORA ENSO OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk, Lars Axrup
  • Publication number: 20130000182
    Abstract: Liquid suspensions are disclosed comprising a suspending medium, small particles of biomass, and small particles of an inorganic material. The inorganic material stabilizes the suspension, so that it may be transported by pipeline or tank car without developing a sediment.
    Type: Application
    Filed: August 2, 2011
    Publication date: January 3, 2013
    Applicant: KiOR INC.
    Inventors: Paul O'Connor, SJOERD DAAMEN
  • Publication number: 20120319029
    Abstract: A sizing composition for insulating products based on mineral wool, in particular of glass or of rock, includes at least one saccharide, at least one organic polycarboxylic acid, at least one esterification catalyst, and at least one agent capable of reducing the emissions of volatile organic compounds (VOCs) chosen from sulphates, sulphamates and carbonates.
    Type: Application
    Filed: October 4, 2011
    Publication date: December 20, 2012
    Applicant: SAINT-GOBAIN ISOVER
    Inventors: Boris Jaffrennou, Benjamin Kaplan, Vincent Gignoux
  • Publication number: 20120037039
    Abstract: This disclosure relates generally to materials configured to replace pullulan and pullulan functionalities and their use in applications such as edible films, coatings, breath or flavor strips, tablet coatings, gel caps, tobacco products, films for cheese or spice flavor delivery, films as barriers in food products, and non food products including industrial, personal care and pharmaceutical products. In addition, the materials and methods disclosed herein are configured for use in similar products that do not incorporate pullulan but would benefit from pullulan-like properties and functionalities.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Applicant: TIC GUMS, INC.
    Inventor: Marceliano B. Nieto
  • Publication number: 20120040093
    Abstract: The present disclosure describes various building materials used in the building and construction industry, and to buildings or objects constructed therefrom, and to methods of making these building materials. The building materials comprise a polymeric material, such as sodium alginate and/or calcium alginate which confers significant flame-, fire- and heat-resistance or imperviousness to the materials. Other substances can be added to the materials to improve cross-linking and/or to produce resistance to fungal degradation. The building materials which can be produced, processed, or treated using the alginate polymers of the invention include, but are not limited to, wood products; masonry products; wall, roofing, flooring and siding products; and paint products. Further, sodium alginate in the form of a gel may be used as a firebreak to effectively stop the advance of grass fires, wildfires, and forest fires.
    Type: Application
    Filed: October 26, 2011
    Publication date: February 16, 2012
    Applicant: Tamarisk Technologies, L.L.C.
    Inventor: Daniel R. DeBrouse
  • Patent number: 7964062
    Abstract: A paper treating agent comprising 100 parts by mass of organopolysiloxane (A), from 100 to 100,000 parts by mass of water (E), and 0.1 to 100 parts by mass of a surfactant (F), characterized in that the agent further comprises 50 to 1,000 parts by mass of a cellulosic resin (C), wherein 0.5 to 2.5 hydroxyl groups per glucose unit of said cellulosic resin are etherized or esterified, and a viscosity of an aqueous 2% solution of said cellulosic resin is from 2 to 100 mPa·s.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: June 21, 2011
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenji Yamamoto, Masahiko Ogawa
  • Patent number: 7951237
    Abstract: The invention relates to a polymer composition comprising a biologically degradable polymer and a material from sea plants and/or shells of sea animals or at least two components selected from the group consisting of saccharides and the derivatives thereof, proteins, amino acids, vitamins and metal ions. The invention additionally relates to a molded article comprising said polymer composition. Said molded article may be used packaging material or fibrous material, in the form of fibrous material as mixing component for the production of yarns, and in the form of fibrous material for the production of nonwoven fabrics or woven fabrics.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 31, 2011
    Assignee: smartfiber AG
    Inventors: Stefan Zikeli, Thomas Endl, Michael Gert Martl
  • Publication number: 20110120350
    Abstract: The present disclosure describes various building materials used in the building and construction industry, and to buildings or objects constructed therefrom, and to methods of making these building materials. The building materials comprise a polymeric material, such as sodium alginate and/or calcium alginate which confers significant flame-, fire- and heat-resistance or imperviousness to the materials. Other substances can be added to the materials to improve cross-linking and/or to produce resistance to fungal degradation. The building materials which can be produced, processed, or treated using the alginate polymers of the invention include, but are not limited to, wood products; masonry products; wall, roofing, flooring and siding products; and paint products. Further, sodium alginate in the form of a gel may be used as a firebreak to effectively stop the advance of grass fires, wildfires, and forest fires.
    Type: Application
    Filed: May 20, 2010
    Publication date: May 26, 2011
    Inventor: Daniel R. DeBrouse
  • Publication number: 20110113983
    Abstract: Hydraulically applied fiber matrix compositions for use on soils include a water-soluble, crosslinkable, hydratable gum, and a compound capable of crosslinking the water-soluble, crosslinkable, hydratable gum. The compositions my further include hydrocolloids and mulch. The hydraulically applied fiber matrix compositions are useful for hydroseeding and soil stabilization.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 19, 2011
    Applicant: Chemstar Products Company
    Inventors: Cory J. Bernu, Jeremy L. Bachman, Paul F. Werler
  • Publication number: 20100320259
    Abstract: The present invention relates to a moulded part based on a fibrous carrier material of natural origin and a binder, wherein the carrier material is of natural origin and comprises fibres. Another object of the present invention is to recycle biological, organic residual flows in a useful manner, wherein the biological residual flows are further processed into a moulded part, which moulded part, if considered waste, can be disposed of via the green waste container.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 23, 2010
    Applicant: HAYNEST B.V.
    Inventors: Gidy Henri Cor Geert Knoors, Arnoldus Henricus Adrianus Verberne
  • Patent number: 7670678
    Abstract: Hemicellulose fibers, more particularly to non-naturally occurring fibers incorporating hemicellulose, processes for making same and fibrous structures incorporating same are provided.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 2, 2010
    Assignee: The Procter & Gamble Company
    Inventor: Dean Van Phan
  • Publication number: 20090272292
    Abstract: Disclosed are methods for improving the water resistance of a lignocellulosic composite product prepared by mixing lignocellulosic material with a binder to form a mixture and solidifying the mixture in a selected configuration to form the composite product comprises adding to the mixture an emulsion including a wax component comprising a nonsaponifiable wax and a saponified wax, an alkyl phenol component comprising a C20-C42 alkyl group, a dispersant/surfactant, a carboxymethylcellulose component, and water. Also disclosed are lignocellulosic products resulting from said method.
    Type: Application
    Filed: July 10, 2009
    Publication date: November 5, 2009
    Inventor: Steven Wantling
  • Patent number: 7563826
    Abstract: Emulsions are provided which are useful in imparting water-resistance to lignocellulosic products. In one embodiment, the emulsions contain a nonsaponifiable wax, a saponified wax, an alkyl phenol component, a dispersant/surfactant such as a salt of polynaphthalenesulfonic acid, and a carboxymethylcellulose. Such emulsions may be added to hot, even boiling, water without the emulsion separating of curdling. Various embodiments are stable for extended periods of time when stored at room temperature, do not require the addition of a preservative biocide to avoid contributing to biodegradation in a lignocellulosic product. The emulsions are pourable liquids at room temperature. Optionally, the emulsions may be added to lignocellulosic products with a preservative to inhibit the preservative from leaching out.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: July 21, 2009
    Assignee: Hexion Specialty Chemicals, Inc.
    Inventors: Steven Wantling, Bonnie S. Zepka
  • Patent number: 7341623
    Abstract: A mixture of substances is designated for introduction into a liquid aqueous system and comprises at least one extremely finely divided active substance component that is designated for subsequent dissolution or dispersion in the liquid aqueous system. The mixture of substances comprises a proportion of cellulose-containing plant fibers and is present in finely particulate form. The cellulose-containing plant fibers improve both the transformation of the extremely finely divided active substance component into the finely particulate form and also its subsequent redissolution in the liquid aqueous system.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 11, 2008
    Assignee: Henkel KGaA
    Inventors: Martin Holl, Andreas Niess, Heinz Gotz, Klaus Neitzer, Heinz-Peter Hoffmann, Bernhard Schottmep
  • Patent number: 6958108
    Abstract: The present invention relates to a modified fiber product and a method of producing same. According to the method, the cellulosic raw material is formed into a fiber suspension, into which components modifying the properties of the fibers are added, subsequent to which the fibrous material is dried in connection with, for example, web forming. According to the invention, alkyl derivative of cellulose is mixed into the fiber suspension in alkaline conditions, the derivative being at least partly dissolved in water, and the derivative is allowed to be sorbed into the fibrous material prior to drying such that the sorbed cellulose derivative can not be washed off with water. The strength properties or the water retention of paper and paperboard products can be improved by using the invention.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: October 25, 2005
    Assignee: M-real Oyj
    Inventor: Tapani Vuorinen
  • Patent number: 6949137
    Abstract: A sculpting/modeling medium is provided comprised of a nontoxic premixed loose ground cellulose material present in the amount ranging from 10–15% by weight; a vegetable adhesive present in the amount ranging from 75–85% by weight; and water present in the amount of 5–10% by weight. The medium may also include a quantity of food coloring or dyes blended in a proportion such that the color of the medium is due primarily to the dyed color of the cellulose. Also present is a method of making the same.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: September 27, 2005
    Inventor: Dale Arthur Erling
  • Patent number: 6896725
    Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 24, 2005
    Assignee: SCA Hygiene Products Zeist B.V.
    Inventors: Jeffrey Wilson Thornton, Dorine Lisa Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
  • Patent number: 6881252
    Abstract: Fiber-based products and adhesives comprising the fiber-based products. The fiber-based products comprise carboxymethyl cellulose, carboxymethylated hemicellulose and carboxymethylated starch. The fiber-based product is obtained by simultaneously performing alkali extraction of hydrocolloid from the fiber and carboxylation, with a carboxymethylating agent, thereby converting extracted cellulose to carboxymethyl cellulose and also carboxymethylating some extracted hemicellulose, starch, and hemicellulose-cellulose complexes.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 19, 2005
    Assignee: Corn Products International, Inc.
    Inventor: Roman Skuratowicz
  • Patent number: 6878199
    Abstract: The present invention provides an improved method and materials for forming biodegradable containers that can hold food products in dry, damp or wet conditions and provides the biodegradable containers prepared according to the disclosed process. The containers are produced through the use of a pre-gelled starch suspension that is unique in its ability to form hydrated gels and to maintain this gel structure in the presence of many other types of materials and at low temperatures.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: April 12, 2005
    Assignee: New Ice Limited
    Inventors: Joe A. Bowden, Christine C. Johnston
  • Publication number: 20040031579
    Abstract: A modified polysaccharide having enhanced surface charge. The polysaccharide is modified to include a cationic polymer, preferably a polyquaternary amine, and has a surface charge from about +5 to about +20 mV. The modified polysaccharide can be advantageous incorporated into a papermaking furnish with enhanced retention.
    Type: Application
    Filed: April 23, 2003
    Publication date: February 19, 2004
    Applicant: Weyerhaeuser Company
    Inventors: Michael D. Vrbanac, Sherry L. Thomson
  • Publication number: 20030116063
    Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.
    Type: Application
    Filed: February 6, 2003
    Publication date: June 26, 2003
    Applicant: W.R. GRACE & CO.-CONN.
    Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
  • Patent number: 6406530
    Abstract: Thermoplastic mixture based on biopolymers for producing shaped biodegradable articles with improved properties, preparation of the mixture, and also its use. A novel thermoplastic mixture based on biopolymers, in particular on starch, features the presence of lignin and is used for producing shaped biodegradable articles with improved properties, preferably with improved mechanical properties.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: June 18, 2002
    Assignee: Aventis Research & Technologies GmbH & Co KG
    Inventors: Holger Bengs, Gitte Böhm
  • Patent number: 6379446
    Abstract: Compositions and methods in which dry-committed fibers are substantially homogeneously dispersed throughout a fibrous composition. The fibrous composition is characterized as having sufficient yield stress and viscosity such that the shearing forces from the mixing apparatus are effectively transferred down to the fiber level. This is accomplished by means of an appropriate thickening agent, e.g, gelatinized starch. The dry-committed fibers are exemplified by flash dry fibers or fibrous sheets that have been cut or torn into fragments less than 2 cm across. Providing fibers that have been dry-committed greatly reduces the time that it takes to obtain substantially homogeneous dispersion of the fibers throughout the fibrous composition. This, in turn, reduces the risk of mixture spoilage and mechanical or chemical damage to the solid components within the fibrous composition.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 30, 2002
    Assignee: E. Khashoggi Industries, LLC.
    Inventors: Per Just Andersen, Simon K. Hodson