Non-fiber Additive Patents (Class 162/158)
  • Patent number: 10550516
    Abstract: A pulp fiber with an enhanced carboxyl content resulting in improved antimicrobial, anti-yellowing and absorptive properties is described. Methods for making the kraft pulp fiber and products made from it are also described.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 4, 2020
    Assignee: GP Cellulose GmbH
    Inventors: Arthur J. Nonni, Charles E. Courchene, Blair R. Carter
  • Patent number: 10458070
    Abstract: There is provided a method of making white sack paper having a grammage of 50-140 g/m2 and a Gurley porosity (ISO 5636/5) of 2-10 s, comprising the steps of: a) providing bleached pulp, such as bleached sulphate pulp; b) subjecting the pulp to high consistency (HC) refining and optionally low consistency (LC) refining to the extent that the sack paper obtains the Gurley porosity; c) adding cationic polymer, such as cationic starch, to the pulp in an amount of 1.5-5.0 kg/ton paper; and d) adding size to the pulp in an amount of 0.4-2.0 kg/ton paper; and e) forming the sack paper from the pulp, wherein less than 2 kg/ton paper of anionic starch is added to the pulp.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 29, 2019
    Assignee: BILLERUDKORSNÄS AB
    Inventors: Jonas Almkvist, Ove Lindström, Constantinos Xenopoulos
  • Patent number: 10441524
    Abstract: Personal care and household care compositions comprising a conditioner and rheology modifier based on a cationic galactomannan or cationic xyloglucan having cationic degree of substitution comprised between 0.01 and 3, free from (3-chloro-2-hydroxypropyl)trimethyl ammonium chloride and free from (2,3-epoxypropyl)trimethyl ammonium chloride.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: October 15, 2019
    Assignee: Lamberti SPA
    Inventors: Valentina Langella, Mauro Riccaboni, Barbara Biasotti, Chiara Fumagalli, Giovanni Floridi, Giuseppe Li Bassi
  • Patent number: 10428467
    Abstract: Methods and apparatus for vacuum forming a meat tray using a slurry. The slurry comprises: a moisture barrier comprising AKD in the range of about 4% by weight; a fiber base comprising bagasse; and an oil barrier comprising a water-based emulsion in the range of about 1.5% by weight.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: October 1, 2019
    Assignee: Footprint International, LLC
    Inventors: Yoke Dou Chung, Brandon Michael Moore, Yiyun Zhang
  • Patent number: 10415187
    Abstract: The present invention relates to the field of molding and the field of pulping and papermaking, particularly relates to a method for preparing molded article from Chinese herb residue and molded article obtained thereof. The preparation method is: Chinese herb residue is chipped and water is added to adjust the concentration to obtain a feed solution; the feed solution is subjected to refining, untwining and beating to obtain a Chinese herb residue slurry; the Chinese herb residue slurry is molded, dried and shaped through hot pressing to obtain molded article. The method provided by the present invention achieves the resource utilization of Chinese herb residues, which not only provides raw materials for papermaking industry and molding industry, but also reduces the environmental burden caused by landfill and incineration of Chinese herb residues, and also can substitute paper pulp and reduce the consumption of paper pulp.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: September 17, 2019
    Assignee: INFINITUS (CHINA) COMPANY LTD.
    Inventors: Dong Guo, Yansheng Huang, Quancai Zhang, Liuyun Hu, Qingtao Tang
  • Patent number: 10392753
    Abstract: A recording medium is provided, such as paper, secured by magnetic microwires. The recording medium comprises: a pulp structure formed by pulp fibers, said pulp structure carrying microwires having a metal core of a predetermined material composition, and an insulating layer coating on said metal core; and at least one coating layer on at least one side of said pulp structure. The pulp structure is a single-layer structure with the microwires fully embedded in said single layer, the microwires having cross-sectional dimensions approximately equal to cross-sectional dimensions of the pulp fibers.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 27, 2019
    Assignee: TAGIT—EAS LTD.
    Inventors: Vladimir Manov, Mario Fuse
  • Patent number: 10323354
    Abstract: The present invention provides a fine cellulose fiber sheet, of which various properties and functions such as paper making ability, solvent resistance, adhesion, functionalization agent immobilization, surface zeta potential, hydrophilicity, hydrophobicity, and air permeation resistance are finely controlled, through a process having low environmental impact. A fine cellulose fiber sheet according to the present invention fulfills all of the following requirements (1) to (3): (1) comprises fine cellulose fibers having an average fiber diameter of 2 nm or greater and 1000 nm or less; (2) the weight ratio of the fine cellulose fibers is 50 wt % or greater and 99 wt % or less; and (3) the block polyisocyanate aggregate content as a weight ratio is 1 to 100 wt % of the weight of the fine cellulose fibers.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 18, 2019
    Assignee: Asahi Kasei Fibers Corporation
    Inventors: Kazufumi Kawahara, Daisuke Sato, Hirofumi Ono, Yamato Saito
  • Patent number: 10036123
    Abstract: The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: July 31, 2018
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Jay C. Song, Sen Yang, Yan C. Huang, Kapil M. Singh, Michael F. Koenig, David B. Shelmidine
  • Patent number: 10006172
    Abstract: A method of increasing the density and reducing the bulk of multi-ply paper products allowing one to reduce the roll size or increase the roll content, while minimizing the destruction of favorable product attributes.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: June 26, 2018
    Assignee: GPCP IP Holdings LLC
    Inventor: Steven R. Olson
  • Patent number: 9988199
    Abstract: Methods and apparatus for manufacturing a microwavable food container include: forming a wire mesh over a mold comprising a mirror image of the microwavable food container; immersing the wire mesh in a fiber-based slurry bath; drawing a vacuum across the wire mesh to cause fiber particles to accumulate at the wire mesh surface; and removing the wire mesh including the accumulated fiber particles from the slurry bath; wherein the slurry comprises a moisture barrier, an oil barrier, and a vapor barrier.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 5, 2018
    Assignee: Footprint International, LLC
    Inventors: Yoke Dou Chung, Brandon Michael Moore, Yiyun Zhang
  • Patent number: 9969815
    Abstract: A method for manufacturing a fibrillated cellulose powder suitable for being dispersed in an aqueous medium, comprising a step of adding a monovalent salt (e.g., sodium chloride, potassium chloride, and lithium chloride) to a fibrillated cellulose suspension, followed by a lyophilization step to provide the fibrillated cellulose powder. Also disclosed are a method of dispersing the fibrillated cellulose powder comprising the method for manufacturing with the further steps of suspending the fibrillated cellulose powder in an aqueous medium and subsequent dialysis of the suspension.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: May 15, 2018
    Assignee: INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Julien Bras, Naceur Belgacem, Karim Missoum
  • Patent number: 9951477
    Abstract: Low slough, high basis weight tissue webs and products are provided. The tissue webs generally have basis weights greater than about 16 grams per square meter (gsm), while maintaining less than about 4 mg of slough. All while yielding tissue products that are both thick and soft.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 24, 2018
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kenneth John Zwick, Peter Lee Carson, Michael William Smaby, Gary Lee Shanklin, Michael John Rekoske, Mike Thomas Goulet, Thomas Joseph Dyer, John Alexander Werner, IV
  • Patent number: 9915031
    Abstract: A method for producing antimicrobial paper pulp is provided. The method includes steps of obtaining paper pulp, reducing water content and temperature of the paper pulp, and refining the paper pulp having reduced water content and temperature to improve properties of the paper pulp. The refining may be performed using a refiner with rotating and stationary cutters. The nanocomposite suspension may be added to the refined paper pulp to produce antimicrobial paper pulp. The antimicrobial paper pulp may be drained and pressed to produce paper by applying oil to reduce moisture content of the paper. The paper may be dried without using vapor.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: March 13, 2018
    Inventors: Javad Karimi, Saman Vahdat, Javad Sadkharvi
  • Patent number: 9897049
    Abstract: An air intake tract with a hydrocarbon adsorber is provided for adsorbing hydrocarbons of a motor vehicle. The hydrocarbon adsorber includes at least one first layer constructed of a hydrocarbon adsorbing material. Optionally, one or more stacked layers are provided including at least an uppermost layer and at least one intermediate layer. The at least one first layer includes a solid shape within an outer boundary and is adapted for sonic welding onto an interior of the air intake tract. The uppermost layer and any intermediate layers include an opening such that the uppermost layer provides access for a sonic welding tool from an upper side of the subassembly to the at least one first layer through the opening.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 20, 2018
    Assignee: MANN+HUMMEL GmbH
    Inventors: Erich Fedak, Timothy Molascon, Jason Worrall
  • Patent number: 9879381
    Abstract: The present disclosure is directed to a continuous process for preparing cellulose reactive adducts of polyvinylamide.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: January 30, 2018
    Assignee: BASF SE
    Inventor: Matthew Wright
  • Patent number: 9873834
    Abstract: The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises a) one or more compounds of formula I b) one or more compounds of formula II and c) one or more compounds selected from the compounds of formulae III-1 to III-4 in which the parameters have the meanings indicated herein, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the use of the compounds of the formula I for the stabilisation of a liquid-crystalline medium which comprises one or more compounds of formula II and one or more compounds selected from the compounds of formulae III-1 to III-4.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: January 23, 2018
    Assignee: MERCK PATENT GMBH
    Inventors: Mark Goebel, Elvira Montenegro, Atsutaka Manabe
  • Patent number: 9777436
    Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: October 3, 2017
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Clay E. Ringold, Cornel Hagiopol, Dexter C. Johnson
  • Patent number: 9765483
    Abstract: The present invention relates to a process for producing paper, card and board. The present invention is based on the discovery that controlling solids content during the process in a specified manner provide enhanced initial web strength of the paper prior to drying and allows for higher machine speeds in the paper production process as compared to known processes.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 19, 2017
    Assignee: BASF SE
    Inventors: Anton Esser, Hans-Joachim Haehnle
  • Patent number: 9738797
    Abstract: The present invention relates to the use of polyglycerol partial esters as defoamers, in particular in coating and paint applications, to defoamers comprising polyglycerol partial esters, and to corresponding polyglycerol partial esters.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: August 22, 2017
    Assignee: Evonik Deguesse GmbH
    Inventors: Margitta Nilewski, Philippe Favresse, André Scharf, Petra Gehrmann, Thomas Mettin, Michael Schwan, Oliver Springer, Tobias Wied
  • Patent number: 9714216
    Abstract: The present invention relates to a process for preparing polyether polyols by addition of alkylene oxides onto H-functional starter substances, characterized in that at least one urethane alcohol of formula (II) where R1 is linear or branched C2 to C24-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, R2 is linear or branched C2 to C24-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, R is H, linear or branched C1 to C24-alkyl, C3 to C24-cycloalkyl, C4 to C24-aryl, C5 to C24-aralkyl, C2 to C24-alkenyl, C2 to C24-alkynyl, each of which may optionally be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, is used as H-functional starter compound.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 25, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Jörg Hofmann, Kai Laemmerhold, Hartmut Nefzger, Monika Heinz, Bert Klesczewski, Klaus Lorenz
  • Patent number: 9714484
    Abstract: Fibrous structures that exhibit a pore volume distribution such that at least 25% and/or at least 43% of the total pore volume present in the fibrous structures exists in pores of radii of from 91 ?m to 140 ?m, and to methods for making such fibrous structures are provided.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 25, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Douglas Jay Barkey, Christopher Michael Young, Michael Donald Suer
  • Patent number: 9663899
    Abstract: Enzyme compositions comprising laccase, lipase, cationic polymer, and optionally laccase activator, for papermaking application are disclosed. It also relates to the use of the enzyme composition to improve dry strength property of a paper product made from lignocellulosic-containing materials before or after mechanical refining in a papermaking process.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 30, 2017
    Assignee: Solenis Technologies, L.P.
    Inventors: Qu-Ming Gu, Josette Huynh-Ba
  • Patent number: 9637865
    Abstract: Disclosed is a method for producing an aldehyde crosslinked polyacrylamide composition useful for strengthening paper. The method includes steps, wherein a) an aldehyde crosslinker and polyacrylamide are mixed in water to form an aqueous solution of aldehyde crosslinked polyacrylamide prepolymer; b) acid is added to the aqueous prepolymer solution to adjust the pH of the solution to a value between 1 to 5; c) storing and transporting the prepolymer solution to the location where the final glyoxalated polyacrylamide composition will be used; and d) adding a base to the stabilized prepolymer solution to adjust the pH of the solution to value between 5.5 to 12, and e) allowing the aldehyde crosslinker and polyacrylamide contained in the aldehyde crosslinked polyacrylamide prepolymer solution to react further and form aldehyde crosslinked polyacrylamide composition useful for strengthening paper.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: May 2, 2017
    Assignee: KEMIRA OYJ
    Inventors: Scott Rosencrance, Chen Lu
  • Patent number: 9556562
    Abstract: Compositions that can be used in a paper material, which may include an anionic polymer, a polyamidoamine epihalohydrin resin, and a stabilizer, are disclosed. Methods for adding the compositions to a paper material are also disclosed.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 31, 2017
    Assignee: KEMIRA OYJ
    Inventors: Yuping Luo, Scott Rosencrance
  • Patent number: 9499943
    Abstract: A method of preparing a treated article comprises the step of providing a slurry comprising fibers. The method further comprises the step of combining the slurry and a first fluorinated composition to form a mixture. In addition, the method comprises the step of forming at least one sheet from the mixture. Finally, the method comprises the step of applying a second fluorinated composition on at least one surface of the at least one sheet to prepare the treated article.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: November 22, 2016
    Assignee: AGC CHEMICALS AMERICAS, INC.
    Inventors: Michael J. Sanchez, James L. Scott
  • Patent number: 9458573
    Abstract: Fibrous structures that exhibit a pore volume distribution such that at least 25% and/or at least 43% of the total pore volume present in the fibrous structures exists in pores of radii of from 91 ?m to 140 ?m, and to methods for making such fibrous structures are provided.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: October 4, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Steven Lee Barnholtz, Paul Dennis Trokhan, Douglas Jay Barkey, Christopher Michael Young, Michael Donald Suer
  • Patent number: 9452093
    Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile may be relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 27, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
  • Patent number: 9452094
    Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile may be relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: September 27, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
  • Patent number: 9439815
    Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile of the fibrous web is skewed toward one of the surfaces of the fibrous web. In such embodiments, the maximum density of the web may be located outside of the central 30% zone of thickness of the web.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: September 13, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
  • Patent number: 9409745
    Abstract: A core intended to be used as a support for a roll of paper, especially toilet paper, is formed by winding at least one strip made of tissue, the strip being impregnated, at least locally, with starch so as to improve its stiffness. Thus configured, a core is provided having both a mechanical strength suitable for the envisaged use and a greatly improved ability to disintegrate relative to a cardboard core so as to allow it to be able to be disposed of directly in a toilet bowl without risk of blocking the soil pipe.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 9, 2016
    Assignee: SCA TISSUE FRANCE
    Inventors: Herve Walgenwitz, Julien Marietta-Tondin, Pierre Probst, Benoit Hoeft
  • Patent number: 9371241
    Abstract: The present invention relates to a process for the production of precipitated calcium carbonate, comprising the following steps: a) providing a reaction vessel containing an aqueous phase at an initial temperature; b) injecting a carbon dioxide generating compound into the aqueous phase until the pH of the aqueous phase is in the range of around 5 to around 7; and c) subsequently adding a calcium hydroxide slurry at an initial temperature to the reaction vessel while continuing the injection of the carbon dioxide generating compound, in order to obtain an aqueous slurry of the precipitated calcium carbonate. The addition rate of the calcium hydroxide slurry to the reaction vessel in step c) is such that an average electrical conductivity of the reaction contents in the reaction vessel during the reaction is in a range of 100 to 6,000 ?S/cm.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: June 21, 2016
    Assignee: Omya International AG
    Inventors: Mathieu Skrzypczak, Marc Maurer, Thomas Schmölzer
  • Patent number: 9315472
    Abstract: The present invention provides novel 1,3,5-triazinane-2,4,6-trione derivatives, such as compounds of any one of Formulae (I) and (II), and salts thereof, and methods of preparing the compounds. Also provided are compositions including a compound of the invention and an agent (e.g., an siRNA, mRNA, or plasmid DNA). The present invention also provides methods and kits using the compositions for delivering an agent to a subject (e.g., to the liver, spleen, or lung of the subject) or cell and for treating and/or preventing a range of diseases, such as genetic diseases, proliferative diseases, hematological diseases, neurological diseases, liver diseases, and lung diseases.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 19, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Akinleye C. Alabi, Hao Yin, Joseph R. Dorkin, Delai Chen, Robert S. Langer, Daniel Griffith Anderson, Ahmed A. Eltoukhy
  • Patent number: 9283730
    Abstract: In general, the present disclosure is directed to creped tissue webs, and products produced therefrom. The creped webs and products are strong, soft, and have fine crepe structure, such as less than about 12, measured as % COV at a STFI wavelength of 16 to 32 mm, using the test method set forth herein. Fine crepe structure is achieved even at basis weights in excess of 16 gsm per ply.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: March 15, 2016
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kenneth John Zwick, Peter Lee Carson, Gary Lee Shanklin, Michael William Smaby, John Alexander Werner, IV, Michael John Rekoske, Mike Thomas Goulet, Thomas Joseph Dyer
  • Patent number: 9181656
    Abstract: A new fluorescent whitening agent (FWA) formulation containing 0.1%-99.9% fluorescent brightener #351 (FB #351) 4,4?-bis(2-sulfostyryl)biphenyl disodium salt (CAS #27344-41-8) and 0.1%-99.9% fluorescent brightener #71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 10, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Patent number: 9145640
    Abstract: A process using a multicomponent enzyme preparation to treat chips that have been crushed using a device that combines shear and compressive forces where treatment occurs mainly during decompression and reduces the specific energy consumption and/or increasing production of subsequent refining while maintaining or increasing handsheet physical properties. The enzyme preparation is to have a major endoglucanase activity, a significant mannanase activity and a slight cellobiohydrolase activity. This enzyme mixture is prepared from a genetically modified strain of Trichoderma reseii.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 29, 2015
    Assignee: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Kecheng Li, Andre Pelletier
  • Patent number: 9145645
    Abstract: Paperboards having improved MD and CD bending stiffness by including a paperboard binder coalescing agent to cause starch paperboard binder to coat at least some of the paperboard fibers. Also a method for preparing these improved bending stiffness paperboards by combining with an untreated paperboard fiber stream a treated paperboard fiber stream where at least some/at least a portion of the paperboard fibers are coated with a starch paperboard binder due to the coalescing action of a paperboard binder coalescing agent.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: September 29, 2015
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: David V. Reed, David A. Dyer
  • Patent number: 9074322
    Abstract: A paper coating or binding formulation comprises an aqueous polymer dispersion comprising a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent. The carbohydrate derived compound can be selected from the group consisting of dextrins, maltodextrins, and mixtures thereof. Methods of preparing a paper coating or binding formulation and improving the whitening properties of paper are also provided. Furthermore, paper including a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent is also disclosed.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: July 7, 2015
    Assignee: BASF SE
    Inventors: Peter C. Hayes, Ralph Lewis De Jong
  • Patent number: 9044133
    Abstract: A debris cleaning system for safely and efficiently cleaning debris such as broken glass from a variety of surfaces. The debris cleaning system generally includes a plurality of magnets which extend out of both its upper and lower ends and an absorption material covers its lower end. The adhesion member is secured to the housing through interaction of the magnets with metallic strips on the lower end of the housing. The adhesion composition, which includes a metallic component, is sprayed onto the debris to be cleaned. The housing is then utilized to run the adhesion member over the debris, wherein the absorption material and magnets act to attract and retain the coated debris to the adhesion member for disposal.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 2, 2015
    Inventor: Karen K. Million
  • Publication number: 20150136343
    Abstract: Compositions comprising enzyme compositions are provided. Also provided are methods of treating virgin fiber and recycled wastepaper containing mineral oils using the compositions comprising enzyme compositions. The mineral oils generally originate from wastepapers with mineral oil based inks and certain other hydrocarbon-based chemistries used during the manufacturing, paperboard converting, and packaging process. The enzymes break down or modify mineral oils present in the fiber and paper, mobilize and liberate them from the fibers, and increase removal of mineral oils during paper recycling, pulping and papermaking processes. The method results in the break down or modification of mineral oil components in wastepaper, recycled pulp, and paper products by the enzyme compositions so that the mineral oils can be more efficiently detached and removed.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: James G. Tausche, Jianhua Ma, Chengliang Jiang
  • Publication number: 20150126728
    Abstract: A surfactant treated bleached softwood kraft pulp fiber, useful as a starting material In the production of cellulose derivatives including cellulose ether, cellulose esters and viscose, is disclosed. Methods for making the kraft pulp fiber and products made from it are also described.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 7, 2015
    Inventors: Arthur James Nonni, Charles Edward Courchene, Christopher Michael Slone, Philip Reed Campbell, Steven Chad Dowdle, Joel Mark Engle
  • Patent number: 9023628
    Abstract: Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials, to produce ethanol and/or butanol, e.g., by fermentation.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 5, 2015
    Assignee: Xyleco, Inc.
    Inventor: Marshall Medoff
  • Publication number: 20150114581
    Abstract: The invention relates to a fibrous web product such as paper, and a method for the preparation of such fibrous web. According to the method microfibrillated cellulose (MFC) together with a pulp of a greater fibre length, such as chemithermomechanical pulp (CTMP), are mixed with a foam of water and a sur-factant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to the final web product. The method brings a high bulk in combination with a high Scott bond value, to provide improved wet and dry tensile strength for the paper and board products.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 30, 2015
    Inventors: Karita Kinnunen, Tuomo Hjelt
  • Patent number: 9017520
    Abstract: Paper coating or binding formulations are provided that comprise aqueous copolymer emulsions including copolymers derived from one or more copolymerizable surfactants of formula I and one or more monomers. The paper coating or binding formulations can include one or more mineral fillers, coating pigments, or mixtures thereof, wherein the total weight concentration of the one or more mineral fillers, coating pigments, or mixtures thereof is 65% or higher, based on the total weight of the composition. Paper products coated with the paper coating or binding formulations, methods of making the paper coating or binding formulations, and methods of making the coated paper products are also disclosed.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 28, 2015
    Assignee: BASF SE
    Inventor: Peter C. Hayes
  • Publication number: 20150107792
    Abstract: A process is provided for making a fluff pulp sheet, comprising forming a web comprising fluff pulp fibers; and applying at least one debonder surfactant to the web, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; 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: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: JIANER JIANG, JAMES E. SEALEY
  • Patent number: 8999112
    Abstract: A method for manufacturing a sheet of paper and/or board having improved retention and drainage properties is provided, according to which, before the formation of the sheet and/or board, at least two retention aids are added to the fibrous suspension. These two retention aids are a main retention aid corresponding to a (co)polymer having a cationic charge density above 2 meq/g, obtained by the Hofmann degradation reaction, and a secondary retention aid corresponding to a water-soluble or water-swellable polymer having an anionic charge density above 0.1 meq/g. The main retention aid is introduced into the fibrous suspension in a proportion of 100 to 800 g/t of dry pulp, and the secondary retention aid is introduced into the fibrous suspension in a proportion of 50 to 800 g/t of dry pulp and has an intrinsic viscosity IV above 3 dl/g.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 7, 2015
    Assignee: S.P.C.M. SA
    Inventors: Gatien Faucher, Rene Hund
  • Patent number: 8999111
    Abstract: The invention provides methods and compositions for increasing the strengthening effect of a starch coating on paper. The method involves contacting the starch with a synthetic polymer before the starch is cooked. This changes how the starch gelatinizes and how the polymer gets distributed on the paper resulting in greater paper surface strength.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 7, 2015
    Assignee: Ecolab USA Inc.
    Inventors: David J Castro, Mei Liu, Gary S Furman, Dorota Smoron, Shawnee M Wilson, Zhiyi Zhang
  • Publication number: 20150090413
    Abstract: The present invention relates to wood pulp for glass plate-interleaving paper in which an amount of silicone contained in the wood pulp is 0.5 ppm or less with respect to an absolute dry mass of the pulp, as well as relates to interleaving paper for glass plates of which a raw material is the wood pulp, in which an amount of silicone contained in paper is 0.5 ppm or less with respect to the absolute dry matter of paper. The interleaving paper for glass plates formed from the wood pulp of the present invention, as well as interleaving paper for glass plates of the present invention are able to remarkably control contamination of silicone to the surface of glass plates for use as substrate material for flat panel displays for which a high degree of cleanliness and high quality are required.
    Type: Application
    Filed: December 26, 2013
    Publication date: April 2, 2015
    Applicant: Tokushu Tokai Paper Co., Ltd.
    Inventors: Yasuhiko Asai, Shinichi Akahori, Tomoki Hirasawa, Yoshiaki Tomotake
  • Patent number: 8986502
    Abstract: A photodegradable paper including cellulose fibers and, if applicable, fillers, additives and/or other kind of fibers is described. Also described, is a paper particularly in the field of packaging, tissue papers or cigarettes.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: March 24, 2015
    Assignee: Solvay Acetow GmbH
    Inventors: Dirk Hölter, Wolfgang Koppe
  • Patent number: 8980054
    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: Grant
    Filed: December 26, 2012
    Date of Patent: March 17, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: SeungRim Yang, JeongKyung Kim, Jian Qin
  • Patent number: 8980058
    Abstract: A modified filler composition used in papermaking is provided. The modified filler composition contains microfibrillated cellulose, and filler having negative charge, and a cationic polymer.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: March 17, 2015
    Assignee: Goldeast Paper (Jiangsu) Co., Ltd
    Inventors: Yan Feng, Dequanjiang