Processes And Products Patents (Class 162/100)
  • Patent number: 10337146
    Abstract: The present invention relates to microfibrillated cellulose (“MFC”), in particular to microfibrillated cellulose, which is morphologically different from conventional MFC known in the art and/or which provides improved water retention properties and/or improved rheological properties, in particular increased zero shear viscosity, ?0, (also known as: “viscosity at rest”, i.e. viscosity in the absence of shear forces), in solution, in particular in polyethylene glycol (PEG) as solvent, vis-a-vis conventional MFC as known in the art.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: July 2, 2019
    Assignee: Borregaard AS
    Inventors: Synnøve Holtan, Marianne Rosenberg Read, Hans Henrik Øvrebø, Inger Mari Nygård Vold
  • Patent number: 10329715
    Abstract: A method is provided for decision support in regulating an adhesive coating applied to Yankee dryers. Online sensors are configured to continuously measure stock characteristics, and additional sensors provide actual stock flow rate and machine speed. A controller predicts potential natural coating application from a fibrous sheet generated from the stock to the Yankee dryer surface, substantially in real time, based on the measured characteristics and sensed actual machine values. An output signal may be provided to a display unit, wherein an optimal adhesive coating feed rate may be determined and displayed for operator decision support. The controller may in an automatic mode be configured to regulate the adhesive coating feed rate based on a comparison of one or more determined optimal values associated with respective actual values. The method may include identifying fiber source changes in real time, and predicting a natural coating potential based partly on predetermined correlations.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: June 25, 2019
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Buist, Vincent Roy, Colin Ruemmele, Daniel Glover, Richard Lusk, Philip Hoekstra
  • Patent number: 10260201
    Abstract: A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and applying at least one debonder surfactant to the web and raising the pH to a second pH, which is higher than the first pH, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic trivalent metal, salt thereof, or combination thereof; at least one debonder surfactant; and a fiberization energy of <145 kJ/kg. Products and uses of the fluff pulp sheet are also provided.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: April 16, 2019
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: James E. Sealey, Michael Hevenor
  • Patent number: 10253457
    Abstract: Compositions such as filled and coated papers may include microfibrillated cellulose and inorganic particulate material.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 9, 2019
    Assignee: FiberLean Technologies Limited
    Inventors: John Claude Husband, Per Svending, David Robert Skuse
  • Patent number: 10240044
    Abstract: The present invention provides an aqueous pigment dispersion including a pigment, an anionic group-containing organic polymer compound, and bio-nanofibers having an average diameter of 1 nm or more and 100 nm or less and an aspect ratio of 100 or more, and also provides an aqueous ink using the aqueous pigment dispersion. The bio-nanofibers are preferably cellulose nanofibers or chitosan nanofibers. The anionic group-containing organic polymer compound is preferably at least one selected from the group consisting of acrylic resins having anionic groups, polyurethane resins having anionic groups, and polysaccharide derivatives having anionic groups.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: March 26, 2019
    Assignee: DIC CORPORATION (TOKYO)
    Inventors: Yukihiko Kawaharada, Takaaki Nabe
  • Patent number: 10214859
    Abstract: The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 26, 2019
    Assignee: FiberLean Technologies Limited
    Inventors: Per Svending, Jonathan Stuart Phipps, Johannes Kritzinger, Tom Larson, Tania Selina, David Skuse
  • Patent number: 10202548
    Abstract: The modification of sand with superhydrophobic silica/wax nanoparticles may provide for water storage, applicable, for example, in desert environments. In particular, highly thermal stable superhydrophobic coats for sand are made of nanoparticles composed of superhydrophobic silica capped with paraffin wax. Superhydrophobic sand modified by such nanoparticles addresses issues of water storage in desert environments, capitalizing on sand resource utilization. Superhydrophobic sand, as modified, has excellent water repellency and great water-holding capacity. The superhydrophobic sand modified with superhydrophobic silica/wax nanoparticles can be applied for the desert water storage for agriculture and planting.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: February 12, 2019
    Assignee: King Saud University
    Inventors: Ayman M. Atta, Mahmood M. S. Abdullah, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat, Mohamed Hasan Wahby
  • Patent number: 9988765
    Abstract: The present invention relates to a process for producing at least one ply of a paper or paperboard product which process comprises the steps of; subjecting cellulosic fibers to heat treatment wherein the fibers are treated at a high dry content and at an increased temperature, preparing a slurry comprising said heat treated fibers, forming a web of said slurry and, dewatering said web whereby a ply of said product is formed. The present invention further relates to a paper or paperboard product produced according to the process.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: June 5, 2018
    Assignee: Stora Enso OYJ
    Inventors: Jari Räsänen, Janne Pynnönen
  • Patent number: 9909256
    Abstract: A method for fibrillation of cellulose includes the following steps: introducing fiber pulp of anionic cellulose at a consistency of 1 to 4% into a homogenizer, and homogenizing fiber pulp in the homogenizer at a pressure of 200 to 1000 bar, advantageously 300 to 650 bar, and by using 2 to 4 passes through for the same fiber pulp under these conditions, and after passes through, taking pulp from the homogenizer, which pulp has been fibrillated by homogenization to a degree than can be expressed as Brookfield viscosity exceeding 10,000 mPa·s (consistency 0.8%, 10 rpm).
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 6, 2018
    Assignee: UPM-KYMMENE CORPORATION
    Inventor: Markus Nuopponen
  • Patent number: 9809928
    Abstract: A cellulose pulp particle having the shape of a general prismatoid having two parallel bases, the pulp particle comprising pulp fibers in a wet laid pulp sheet form, one of the bases having an area that is equal to or greater than the area of the other base, the area of the larger base being equal to or less than 30 mm2 and equal to or greater than 8 mm2, the height of the particle, the perpendicular distance between the bases, being equal to or greater than 0.9 mm and equal to or less than 5 mm.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: November 7, 2017
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: David E Fish, Hugh West, Linda A Beltz
  • Patent number: 9587355
    Abstract: Invention relates to a method of manufacturing glassine paper comprising following steps of producing paper by forming a paper web in a forming section and drying the web in a press section and in a pre-drying section; applying film-forming product on both sides of the web; removing moisture from the film-forming product in an after-drying section; passing the web having film-forming product on its surfaces through an on-line calendering process; and reeling up the glassine paper.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: March 7, 2017
    Assignee: Munksjö Oyj
    Inventors: Jean-Francois Bertrand, Marco Ruffino
  • Patent number: 9469696
    Abstract: The invention relates to a method for processing an aqueous gel of nanofibrillar cellulose by removing water from the aqueous gel by means of an organic solvent miscible with water. In the method: aqueous gel is introduced into a volume of organic solvent miscible with water in a controlled manner so that the aqueous gel is kept as a separate phase and forms discrete physical entities containing the nanofibrillar cellulose within the phase; water is changed with the organic solvent in said discrete physical entities of nanofibrillar cellulose; and the physical entities are separated from the volume of organic solvent.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: October 18, 2016
    Assignee: UPM-KYMMEME CORPORATION
    Inventors: Antti Laukkanen, Jan-Erik Teirfolk, Markus Nuopponen
  • Patent number: 9409998
    Abstract: A method for processing fibril cellulose which is in the form of aqueous fibril cellulose gel includes lowering the pH of the aqueous fibril cellulose gel to provide aqueous fibril cellulose gel of reduced water retention capacity, and dewatering the aqueous fibril cellulose gel of reduced water retention capacity to provide dewatered fibril cellulose. The dewatering is performed by pressure filtration.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: August 9, 2016
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Antti Laukkanen, Markus Nuopponen
  • Patent number: 9365973
    Abstract: Provided is a method which is capable of producing a cellulose nanofiber dispersion liquid that has a low viscosity and excellent fluidity even at a high concentration, while exhibiting excellent transparency. In a method for producing cellulose nanofibers, wherein a cellulosic starting material is oxidized in water using an oxidant in the presence of an N-oxyl compound and a compound that is selected from the group consisting of a bromide, an iodide and a mixture thereof and the thus obtained oxidized cellulose is defibrated and dispersed, pulp which is obtained by carrying out kraft cooking after a hydrolysis process is used as the cellulosic starting material.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 14, 2016
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Shiho Tsuji, Masahiko Fukazawa, Shoichi Miyawaki, Takeshi Iimori
  • Patent number: 9303977
    Abstract: A method includes, using at least one processing device, obtaining an image of a web of creped tissue paper and identifying a caliper measurement of the web using the image. The caliper measurement is based on a dominant frequency of the web and a standard deviation of diffusely-reflected light from the web. The dominant frequency of the web can be based on a number of crepe folds having a dominant crepe fold size that fit within a specified unit distance of the web in the image. The dominant crepe fold size can be determined using a discrete auto-covariance function of the image or a second image of the web. The standard deviation can be based on a variation of reflected light from larger crepe structures in the web.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: April 5, 2016
    Assignee: Honeywell International Inc.
    Inventors: Markku Kellomäki, Antti Paavola
  • Patent number: 9222222
    Abstract: A mixture of lyocell fiber and low DP or standard DP cellulose pulp fiber having a Canadian Standard Freeness of 250 mL CSF or less is dried and has a Canadian Standard Freeness of 250 mL CSF or less. The pulp is 10% to 75% of the total weight of fibers in the mixture. Both the dried product and the process of making it are disclosed.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 29, 2015
    Assignee: Weyerhaeuser NR Company
    Inventor: Andrew J. Dodd
  • Patent number: 9056792
    Abstract: A method of curing cementitious material comprising added a fibrillated carboxyalkyl cellulose, cellulose alkylsulfonic acid, phosphorylated cellulose or sulfated cellulose having a degree of substitution of 0.01 to 0.45 to the material during mixing. The fibrillated carboxyalkyl cellulose, cellulose alkylsulfonic acid, phosphorylated cellulose or sulfated cellulose may also include bleached or partially bleached wood pulp fiber. The fibrillated carboxyalkyl cellulose, cellulose alkylsulfonic acid, phosphorylated cellulose or sulfated cellulose has a substituent content of from 10 to 150 meq/100 g cellulose fiber. The fibrillated carboxyalkyl cellulose, cellulose alkylsulfonic acid, phosphorylated cellulose or sulfated cellulose is 0.1 to 5% by weight of the dry weight of the cementitious material. The structure produced by the method. The autogenous shrinkage of the cementitious material is reduced.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: June 16, 2015
    Assignee: Weyerhaeuser NR Company
    Inventors: S. Ananda Weerawarna, David J. O'Callaghan
  • Patent number: 9045875
    Abstract: An absorbent pad for absorption and containment of oil based products. The absorbent pad includes a plurality of absorbent modules contained within a hydrophobic, porous and flexible top and base material, each absorbent module having a hydrophobic, oil absorbent material sealed therein, each of the plurality of absorbent modules being spaced from adjacent absorbent modules by a gap to allow the absorbent modules to flex and twist with respect to each other as well as permitting oil-based products to flow up through the gap between adjacent absorbent modules.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: June 2, 2015
    Assignee: INKASTRANS (CANADA) LTD.
    Inventors: Alexander Ozersky, David Khazanski, Jakov Kogan
  • Patent number: 9028767
    Abstract: A method for mixing a chemical into a process liquid including: injecting the chemical into the process liquid flowing through a flow pipe; forming reaction products by a reaction involving the chemical occurring in the process flow; applying an electric field or magnetic field to a region of the flow pipe adjacent to the reaction occurring in the process flow, and suppressing the precipitation of the chemical or the reaction products on the surfaces of the pipe due to the electric or magnetic field.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: May 12, 2015
    Assignee: Wetend Technologies Oy
    Inventors: Jari Rasanen, Jouni Matula
  • Publication number: 20150068112
    Abstract: The invention relates to a method for processing lignin. The method includes feeding lignin material to the system, decreasing particle size of the lignin material in a grinding device in order to manufacture lignin powder having particle size distribution wherein at least 85 wt. % of the lignin agglomerates and particles are less than 300 microns, and increasing dry solids content of the lignin material at least 5 percentage units while decreasing the particle size in the grinding device. In addition, the invention relates to a system for processing lignin, a lignin powder, a method for manufacturing a product including lignin, a system for manufacturing a product including lignin and a product including lignin powder.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 12, 2015
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Päivi Varvemaa, Juha Sipponen, Vilho Nissinen, Suvi Pietarinen, Nina Pykäläinen, Mauno Miettinen
  • Patent number: 8958898
    Abstract: The invention embodies methods and apparatuses to monitor and control the characteristics of a creping process. The method involves measuring optical properties of various points along a creped paper sheet and converting those measurements into characteristic defining data. The invention allows for determining the magnitude and distribution of crepe structures and their frequency and distribution. This allows for the generation of information that is accurate and is much more reliable than the coarse guessing that is currently used in the industry. Feeding this information to papermaking process equipment can result in increases in both quality and efficiency in papermaking.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: February 17, 2015
    Assignee: Nalco Company
    Inventors: William A. Von Drasek, Sammy Lee Archer, Gary S. Furman, Jr.
  • Patent number: 8936697
    Abstract: A process for producing a water-absorbent high-porosity fibrous matrix from lignocellulosic raw materials, comprising wet mechanical processing of the raw material, drying, and then dry mechanical processing the fibers to provide a fibrous matrix is provided. The high-porosity fibrous matrix and absorbent articles prepared therefrom are also provided.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: January 20, 2015
    Assignee: Sustainable Health Enterprises
    Inventors: Elizabeth Scharpf, Liying Huang, Hannah Brice, Joshua Velson, Sina Salehi Omran, Jeffrey Zhou, Rachel B. Licht, Clark K. Colton, William H. Dalzell
  • Publication number: 20140373197
    Abstract: The present invention relates to methods for controlling pest infestation using double stranded RNA molecules. The invention provides methods for making transgenic plants that express the double stranded RNA molecules, as well as pesticidal agents and commodity products produced by the inventive plants.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 18, 2014
    Inventors: Romaan Raemaekers, Laurent Kubler, Els Vanbleu, Thierry Andre Olivier Eddy Bogaert
  • Publication number: 20140352903
    Abstract: A cellulosic composition comprising fibres having a length weighted average fibre length (“LWAFL”) of 0.25 to 0.40 mm.
    Type: Application
    Filed: October 26, 2011
    Publication date: December 4, 2014
    Applicant: ZEO IP PTY LTD
    Inventor: Martin Charles Ernegg
  • Patent number: 8883303
    Abstract: The invention pertains to a method for making a polymer-additive composite particle from a dope by jet spinning the dope to obtain a pulp, fibril or fibrid, wherein the solvent of the dope is selected from N-methyl-2-pyrrolidone, N,N?-dimethylformamide, N,N?-dimethylacetamide, tetramethylurea, and 4 to 75 wt % of a composition consisting of 2 to 95 wt % of a para-aramid polymer and 5-98 wt % of a solid additive material, to a total of 100 wt %, and wherein the aramid polymer is dissolved in the solvent; or coagulating the dope by means of a rotor-stator apparatus in which the polymer solution is applied through the stator on the rotor so that the precipitating polymer-additive composite particle is subjected to shear forces while they are in a plastic deformable stage.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: November 11, 2014
    Assignee: Teijin Aramid B.V.
    Inventors: Anton Johannes Josef Hendriks, Mirjam Ellen Oldenzeel, Johannus Maria Bergmans, Tetsuya Akamatsu
  • Publication number: 20140318725
    Abstract: A bleached softwood kraft pulp fiber with high alpha cellulose content and increased brightness and whiteness is provided. Methods for making the kraft fiber and products made from it are also described.
    Type: Application
    Filed: May 18, 2012
    Publication date: October 30, 2014
    Applicant: GP CELLULOSE GMBH
    Inventors: Arthur J. Nonni, Charles E. Courchene, Philip R. Campbell, Steven C. Dowdle, Joel M. Engle, Christopher M. Slone
  • Publication number: 20140284013
    Abstract: The present disclosure offers an improvement in papermaking methods and products, by providing a tissue sheet and a method to obtain a tissue sheet, with improved absorbency at a given basis weight. Thus, by way of example, the present disclosure provides a single ply tissue sheet having a basis weight greater than about 50 gsm and a specific vertical absorbent capacity greater than about 6.0 g/g.
    Type: Application
    Filed: May 7, 2014
    Publication date: September 25, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael Alan Hermans, Gretchen Sarah Koch, Maurizio Tirimacco, Erin Ann McCormick
  • Publication number: 20140262089
    Abstract: A lignocellulosic fibrous composite having one or more solvents and a dried lignocellulosic fiber, wherein the dried lignocellulosic fiber has been processed by ruminant digestion and anaerobic digestion. A method for preparing a lignocellulosic fibrous composite is also disclosed including the steps of providing excrement from an animal which has undergone ruminant digestion, introducing the cow excrement into an anaerobic digester, modifying the cow excrement to a first wet product, and drying the first wet product to, in turn, generate a lignocellulosic fibrous composite.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 18, 2014
    Inventors: Carey J. Boote, Russ Malek
  • Publication number: 20140283217
    Abstract: Provided herein are compositions and methods for producing transgenic plants. In specific embodiments, transgenic plants comprise a construct comprising a polynucleotide encoding microRNA167 (miR167), or precursor thereof, operably linked to a plant pericycle-specific promote, wherein the miR167 is ectopically overexpressed in the transgenic plants, and wherein the promoter is optionally a constitutive or inducible promoter. In some embodiments, the transgenic plant has an improved agronomic or nutritional characteristic when cultivated in nitrogen-rich conditions as compared to a wild type plant cultivated in the same conditions. Also provided herein are commercial products (e.g., pu)p, paper, paper products, or lumber) derived from the transgenic plants (e.g., transgenic trees) produced using the methods provided herein.
    Type: Application
    Filed: December 19, 2013
    Publication date: September 18, 2014
    Applicant: New York University
    Inventors: Gloria Coruzzi, Kenneth D. Birnbaum, Rodrigo A. Gutierrez, Miriam Gifford
  • Publication number: 20140209262
    Abstract: The present invention provides tissue products having a high degree of stretch and low modulus at relatively high tensile strengths, such as geometric mean tensile strengths greater than about 1500 g/3? and more preferably greater than about 2000 g/3?. The combination of a tough, yet relatively supple sheet is preferably achieved by subjecting the embryonic web to a speed differential as it is passed from one fabric in the papermaking process to another, commonly referred to as rush transfer.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 31, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael Alan Hermans, Angela Ann Johnston, Gretchen Sarah Koch, Maurizio Tirimacco, Erin Ann McCormick, Mark William Sachs, Jeffrey Dean Holz, Peter John Allen, Kevin Joseph Vogt
  • Publication number: 20140209259
    Abstract: A process using a multicomponent enzyme preparation to treat screened once refined pulps and reduces the specific energy consumption and/or increasing production while maintaining or increasing handsheet physical properties. The enzyme preparation has a major endoglucanase activity, a significant mannanase activity and a relatively small cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng LI, Andre PELLETIER, Yu ZHAO
  • Patent number: 8790492
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 29, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Publication number: 20140205777
    Abstract: One aspect of the invention relates to an article of manufacture made from a pulp composition comprising an ARF pulp. In one embodiment, the pulp composition made from agricultural renewable fibers (ARF) having low Kappa number with unexpected quality sufficient for papermaking (e.g., high strength parameters and high freeness). In another embodiment, the ARF pulp has ISO brightness of 60% or higher, and unexpected quality sufficient for papermaking (e.g. high strength.parameters and high freeness). In another embodiment, the ARF pulp is made from a pulping process comprising using a high concentration of anthraquinone (AQ).
    Type: Application
    Filed: August 30, 2012
    Publication date: July 24, 2014
    Applicant: CARGILL, INCORPORATED
    Inventors: Brent A. Hawkins, Fred Martin
  • Patent number: 8771465
    Abstract: A raw paper prepared by a mixed pulp including straw pulp, which can be used to prepare textbooks, writing papers and office paper with good performance, and the producing method of said raw paper are provided. The weight proportion of the straw pulp in the mixed stock is from 10% to 100%, and the straw pulp has a hardness of KMnO4 value 10-17, an average fiber length of 0.1-2.5 mm, a tensile index of 23-57 Nm/g, a tearing index of 3.0-6.0 mN·m2/g, a folding endurance index of 2-6 kPa·m2/g and a whiteness of 28-50%. Either, the L value of the hue of said raw paper is 65-95, a value is 0-5, and b value is 0-40. The KMnO4 value of hardness of the pulp after oxygen delignification is 10-14. The method includes: adding grass-series raw material into a digester, then adding cooking liquor, heating the cooking liquor to 100-200°, pressurizing to 0.3-0.9 MPa, cooking for 150-250 min, extruding the pulp, washing and obtaining the straw pulp.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 8, 2014
    Assignee: Shandong Fuyin Paper & Environmental Protection Technology Co., Ltd
    Inventors: Hongfa Li, Mingxin Song, Jianmin Wang, Yanjin Bi, Jinxiang Xu, Zhongcheng He
  • Publication number: 20140174686
    Abstract: The present invention provides a modified cellulosic fiber having reduced hydrogen bonding capabilities. The modified fiber formed in accordance with the present invention may be useful in the production of tissue products having improved bulk and softness. More importantly, the modified fiber is adaptable to current tissue making processes and may be incorporated into a tissue product to improve bulk and softness without an unsatisfactory reduction in tensile.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: SeungRim Yang, JeongKyung Kim, Jian Qin
  • Publication number: 20140178660
    Abstract: The present invention provides a modified cellulosic fiber having reduced hydrogen bonding capabilities. The modified fiber formed in accordance with the present invention may be useful in the production of tissue products having improved bulk and softness. More importantly, the modified fiber is adaptable to current tissue making processes and may be incorporated into a tissue product to improve bulk and softness without an unsatisfactory reduction in tensile.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: JeongKyung Kim, SeungRim Yang, Jian Qin, Deborah Joy Calewarts
  • Patent number: 8753484
    Abstract: A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: June 17, 2014
    Assignee: International Paper Company
    Inventors: Zheng Tan, Damaris Lorenzoni, Gopal Goyal, Sen Yang
  • Patent number: 8728592
    Abstract: The present invention relates to a container made from fiber based board wherein the container comprises a sleeve and a bottom, said bottom comprises polymer coated board, at least one side of said sleeve is uncoated and the sleeve is formed by sealing two edges of the sleeve together along a side seam. The invention further relates to a method for producing said container.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: May 20, 2014
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Timo Raisanen, Jari Rasanen, Titta Lammi
  • Publication number: 20140093704
    Abstract: The present invention relates to a containerboard packaging material comprising at least one non-wood alternative pulp material wherein said non-wood alternative pulp material is present in an amount of from about 5% to about 100% and wherein said material replaces at least a portion of conventional fiber materials.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Bo Shi, Mark M. Mleziva, Brent M. Thompson, Robert J. Zelenak
  • Publication number: 20140048223
    Abstract: A method for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 20, 2014
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E Kizer
  • Publication number: 20140048222
    Abstract: A method for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises an amine oxide and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 20, 2014
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer
  • Publication number: 20140048221
    Abstract: A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent comprising acetic acid. The cellulosic product retains the cellulosic fiber morphology.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 20, 2014
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Rongfu Li, Jay Mehta, Xiaoyan Tu, Prabuddha Bansal, Michael Combs, Denis Fallon, Lawton E. Kizer
  • Publication number: 20140045684
    Abstract: An object of the present invention is to provide a water dispersion paper having quick water dispersion property and high strength (printability) and whose paper surface pH is 6 to 8 (neutral range), and also to provide a water dispersion coated paper designed to ensure quick water dispersion property and prevent discoloration over time. A water dispersion paper made of wood pulp and/or non-wood pulp, wherein said water dispersion paper is characterized in that purified pulp containing ?-cellulose by 88 percent by weight or more accounts for 15 to 95 percent by weight of all pulp, as well as a water dispersion coated paper having a water-soluble coating layer on said water dispersion paper.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 13, 2014
    Applicant: NIPPON PAPER PAPYLIA CO., LTD.
    Inventors: Munenaka Koyama, Masaki Kishimoto, Yoshiaki Ishino
  • Publication number: 20140014283
    Abstract: The invention relates to methods of manufacturing nano pulp, wherein cellulose containing raw material is accelerated in a continuous gas and/or liquid flow, whereby the material is disintegrated and nano pulp is produced. The gas and/or liquid flow may be created by reduction of an elevated pressure in a reactor holding the cellulose containing raw material. The invention also relates to the nano pulp produced.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 16, 2014
    Applicant: INNVENTIA AB
    Inventors: Mikael E. Lindström, Daniel Söderberg, Gunnar Henriksson
  • Publication number: 20140010989
    Abstract: Board stock that includes, among other things, multiple layers of degradable paper secured together by a degradable adhesive. In an embodiment, the board stock can be made of multiple layers of water soluble paper secured together by a water soluble adhesive. In another embodiment, the board stock includes a single layer of degradable material, such as water soluble paper, having an increased thickness. In other embodiments, the board stock can be used to make a wide-variety of articles.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: Robert W. Piefke, Gregory L. Rogers
  • Publication number: 20140000824
    Abstract: The present invention provides for the optimisation of conditions for treating pulp with a catalyst and hydrogen peroxide to produce a Freeness value (SR) in a web produced from the treated pulp such that the energy required in mechanical agitation of the pulp is reduced.
    Type: Application
    Filed: May 9, 2011
    Publication date: January 2, 2014
    Applicant: CATEXEL LIMITED
    Inventors: Ronald Hage, Kimberly Soraya Yang
  • Publication number: 20140000823
    Abstract: A method of splitting hollow cellulosic fibers employs the steps of wetting the fibers, feeding the wet fibers to a gaseous flow, and conducting the gaseous flow carrying the fibers through a venturi tube, the pressure drop in the venturi tube throat bringing a pressure difference between liquid inside the fibers and gas outside of the fibers and causing the fibers to split in their longitudinal direction, to open the lumen inside the fibers.
    Type: Application
    Filed: December 16, 2011
    Publication date: January 2, 2014
    Inventor: Reijo K. Salminen
  • Publication number: 20140000825
    Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 2, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: ZHENG TAN, XUAN T. NGUYEN, KAREN MAURER
  • Publication number: 20130340959
    Abstract: A method is provided for controlling deposit-forming contaminants that comprise pitch or other fiber components which can interfere with the processing of the fibers, reduce paper quality, or both in papermaking systems. The method includes contacting fibers with a lipase and at least one peroxide source-free oxidant, and optionally nonionic surfactant, to liberate the organic contaminants from the fibers. Paper products of the method are also provided.
    Type: Application
    Filed: April 19, 2013
    Publication date: December 26, 2013
    Applicant: Buckman Laboratories International, Inc.
    Inventors: Xiangdong Zhou, Percy Jaquess
  • Publication number: 20130333341
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond