Carbohydrate Patents (Class 162/175)
  • Patent number: 10626193
    Abstract: The invention concerns a process for the manufacture of an acylated polymer composition comprising amylose and/or amylopectin, comprising a pre-treatment step in the presence of an acid, and optionally one additive selected from the group of a hydroxycarboxylic acid and a salt in combination with a polycarboxylic acid. After pre-treatment, the polymer is acylated and, preferably, subjected to a post-treatment step with an acid. The products obtained are useful as additives in varnishes, lacquers, coatings, thickeners, adhesives or binders, and preferably inks.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: April 21, 2020
    Assignee: Rhodia Acetow GmbH
    Inventors: Jana Lubkoll, Armin Stein
  • Patent number: 10563356
    Abstract: The present invention relates to a method of making a paper product having Improved printing characteristics. This is achieved by forming a fibrous substrate, and applying a surface treatment which comprises an aqueous composition. Notably, the aqueous composition includes surface enhanced pulp fibers, with the placement of the surface enhanced pulp fibers optimizing their functionality, with surface placement by use of a paper machine size press desirably facilitating a reduction in the typical starch usage. The present method comprising the steps of providing a aqueous slurry comprising a blend of cellulosic fibers and water and dewatering the aqueous slurry of cellulosic fibers and water to form a fibrous substrate.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 18, 2020
    Assignee: DOMTAR PAPER COMPANY, LLC
    Inventors: Bruno Marcoccia, Harshad Pande, Robert M. Williams
  • Patent number: 10550519
    Abstract: The present disclosure is drawn to sizing compositions, which can include 40 wt % to 85 wt % starch based on dry components, 10 wt % to 40 wt % cationic multivalent salt based on dry components, and 1 wt % to 15 wt % inorganic pigment selected from a calcium carbonate, a swellable clay, or combination of the calcium carbonate and the swellable clay.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: February 4, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher Arend Toles, Thomas Roger Oswald
  • Patent number: 10538880
    Abstract: The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: January 21, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Qing Qing Yuan, Qun Dong, Zhi Chen, Jian Kun Shen
  • Patent number: 10358772
    Abstract: A method for manufacturing of a film, wherein said film is manufactured in a paper or paper board machine, wherein the method comprises the steps of providing a solution of a nanofibrillated poly-saccharide, wherein said solution comprises from 0.01 to 50 weight-% nanofibrillated polysaccharide, and wherein the nanofibrillated polysaccharide is any one of microfibrillated cellulose, nanofibrillated cellulose, nanocrystalline cellulose, microcrystalline cellulose, cellulose whiskers and cellulose derivative or a combination or mixture thereof, wherein the method further comprises the steps of providing an amphiphilic polymer; and providing a mixture of said amphiphilic polymer and said solution comprising nanofibrillated polysaccharide, whereby an intermediate solution is obtained; bringing said intermediate solution into a foam; providing said foam in the paper or board machine.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: July 23, 2019
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Kaj Backfolk, Esa Tapio Saukkonen, Katja Eliisa Lyytikainen
  • Patent number: 10329359
    Abstract: The invention relates to a method for producing microfibrillated cellulose, where a suspension comprising cellulose derivative in a liquid phase which comprises an organic solvent is provided. The suspension of cellulose derivative is mechanically treated and microfibrillated cellulose is obtained. At least a part of the liquid phase from the microfibrillated cellulose is separated and microfibrillated cellulose with a dry solids content of >30 weight-% is obtained.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 25, 2019
    Assignee: Kemira Oyj
    Inventors: Marcus Lillandt, Veli-Matti Vuorenpalo, Kari Vanhatalo
  • Patent number: 9932415
    Abstract: The present invention relates to a method for producing a formyl group-containing porous base matrix, comprising the steps of introducing a spacer in a formyl group-containing porous particle; and then oxidizing the spacer with periodic acid and/or a periodate, to transform the part of the spacer into a formyl group; wherein the formyl group content in the porous particle after introduction of the spacer is not more than 3 ?mol per 1 mL of the porous particle. Also, the present invention relates to a method for producing an adsorbent, comprising the step of immobilizing an amino group-containing ligand on the formyl group-containing porous base matrix. According to the present invention, a formyl-group containing porous base matrix and an adsorbent produced from the porous base matrix of which adsorption amount is high and which is has high strength and of which ligand is difficult to be leaked are provided.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 3, 2018
    Assignees: KANEKA CORPORATION, JNC CORPORATION
    Inventors: Yoshikazu Kawai, Hiroaki Kawasaki, Naomi Kawahara
  • Patent number: 9920484
    Abstract: The present invention relates to a method of making a paper product having improved printing characteristics. This is achieved by forming a fibrous substrate, and applying a surface treatment which comprises an aqueous composition. Notably, the aqueous composition includes surface enhanced pulp fibers, with the placement of the surface enhanced pulp fibers optimizing their functionality, with surface placement by use of a paper machine size press desirably facilitating a reduction in the typical starch usage. The present method comprising the steps of providing a aqueous slurry comprising a blend of cellulosic fibers and water and dewatering the aqueous slurry of cellulosic fibers and water to form a fibrous substrate.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 20, 2018
    Assignee: DOMTAR PAPER COMPANY, LLC
    Inventors: Bruno Marcoccia, Harshad Pande, Robert M. Williams
  • Patent number: 9828727
    Abstract: The invention relates to a method for preparing aqueous furnish to be used in paper product manufacturing. In the method aqueous furnish is prepared by making a fiber suspension, and cationic natural polymer (S), alum (A) and anionic nanofibrillar cellulose (F) are added to the aqueous furnish in a short circulation of a paper or board machine.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: November 28, 2017
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Mika Kosonen, Mika Raty
  • Patent number: 9644322
    Abstract: A solid article formed from poly alpha-1,3-glucan and wood pulp is disclosed as are methods for making the solid article. The articles are not water sensitive and are useful for producing strong molded articles from wood pulp.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: May 9, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Debora Flanagan Massouda
  • Patent number: 9587353
    Abstract: The invention is directed to systems for papermaking comprising a first population of fibers dispersed in an aqueous solution and complexed with an activator, and a second population of composite additive particles bearing a tethering material, wherein the addition of the second population to the first population attaches the composite additive particles to the fibers. The invention also encompasses methods for manufacturing a paper product.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: March 7, 2017
    Assignee: NanoPaper, LLC
    Inventors: Gangadhar Jogikalmath, Andrea Schneider, David S. Soane
  • Patent number: 9518363
    Abstract: Disclosed is an emulsion of an internal paper size and a biocidal emulsifying agent, such as a cationic non-starchy quaternary ammonium compounds, that is introduced into a paper-making furnish to produce an anti-microbial paper. The antimicrobial paper is useful as facing for gypsum panels. A method of making the paper includes emulsifying the internal size with a biocide before introducing the size to the paper furnish. A method of making a microbial growth resistant gypsum panel that incorporates the antimicrobial paper is also disclosed.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: December 13, 2016
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: Evan V. Rohlf, Mark B. Scalf
  • Patent number: 9506197
    Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 29, 2016
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
  • Patent number: 9506198
    Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 29, 2016
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
  • Patent number: 9458571
    Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 4, 2016
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
  • Patent number: 9347025
    Abstract: The present invention discloses a method of washing ware, in particular in an automatic domestic or institutional ware washing machine, using a detergent composition containing a cationic starch. This eliminates the need for a surfactant in the rinse step. The cationic starch provides a layer of cationic starch on the ware so as to afford a sheeting action in an aqueous rinse step without any added rinse agent.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 24, 2016
    Inventors: Antonius Maria Neplenbroek, Julie Jessica Beau, Florian Romain Marie Raphanel
  • Patent number: 9309626
    Abstract: This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 12, 2016
    Assignee: International Paper Company
    Inventors: Kapil M. Singh, Dennis W. Anderson, Peter M. Froass, Yaoliang Hong, Kosaraju Krishna Mohan, Thomas R. Arnson, Yan C. Huang
  • Patent number: 9309328
    Abstract: Disclosed herein is a method of preparing a cationic dextrin, including: performing cationization reaction by adding a cationization agent to dextrin.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 12, 2016
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Moo Yeol Baik, Ah Ra Cho, Byung Yong Kim
  • Patent number: 9133583
    Abstract: A process for making a stiffened and rigid paper includes preparing a pulp slurry consisting essentially of water, a cellulosic pulp, a crosslinker, and a starch, and optionally a binder; draining the liquid from the pulp slurry to form a web; and drying the web. Alternatively, a process for making a stiffened and rigid paper includes the step of adding at least one crosslinker at one or more locations, such as at the wet-end, dry-end, or at both ends of the papermaking process. Suitable crosslinkers include a glyoxal-containing crosslinker, a gluteraldehyde, a polyfunctional aziridine, a zirconium-containing crosslinker, a titanium-containing crosslinker, and an epichlorohydrin, and mixtures thereof. When a binder is employed, it can be added either in the dry or wet form. Provided is a neutral or alkaline process to produce a paper product having the improved mechanical properties of a laminated product in the Z-direction, without a lamination step.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 15, 2015
    Assignee: P.H. Glatfelter Company
    Inventor: Thomas W. Ballinger
  • Patent number: 9051115
    Abstract: The invention relates to a fibrous product (2, 2.1, 2.2, 2.3) for packaging, in particular food product packaging, comprising at least one first fiber layer (4.1, 4.1?, 4.1?, 4.2, 4.2?, 4.2?, 4.3?, 4.4?, 4.5?, 4.6?, 14, 16, 18), a filter material (6) for binding mineral oil substances extending at least partly through said first fiber layer (4.1, 4.1?, 4.1?, 4.2, 4.2?, 4.2?, 4.3?, 4.4?, 4.5?, 4.6?, 14, 16, 18).
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 9, 2015
    Assignee: Smurfit Kappa Hoya Papier und Karton GmbH
    Inventors: Armin Buschmann, Fulvio Cadonau, Ralf Honsbrok, Detlev Richter, Olaf Truppner
  • Publication number: 20150122440
    Abstract: The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension in paper applications, such as in paper coating or as filler material.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 7, 2015
    Inventors: Armelle Senti-Wenk, Patrick A.C. Gane, Joachim Schoelkopf
  • Publication number: 20150101770
    Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Imeli Sinisalo, Harri Kosonen
  • 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
  • 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
  • Patent number: 8980059
    Abstract: Disclosed herein are systems and methods for attaching particulate additives to a population of cellulose fibers dispersed in an aqueous solution. The cellulose fibers are treated with an activator that forms complexes with them. The particulate additive is attached to a tether that is capable of interacting with the activator, thereby forming a tether-bearing particulate additive. The tether-bearing particulate additive can be added to the activated suspension of cellulose fibers. The resulting interaction between the tether and the activator forms durable complexes that attach the particulate additive to the cellulose fibers. Using these systems and methods, useful additives like starches can be attached to cellulose fibers, imparting advantageous properties such as increased strength to paper products formed thereby. These systems and methods are particularly useful for papermaking involving virgin pulp fibers, recycled fibers, or any combination thereof.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Nanopaper, LLC
    Inventors: Gangadhar Jogikalmath, Patrick D. Kincaid, Lynn Reis, David S. Soane
  • Publication number: 20150068696
    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: Application
    Filed: July 8, 2014
    Publication date: March 12, 2015
    Inventors: DAVID V. REED, DAVID A. DYER
  • Patent number: 8974637
    Abstract: The present invention relates to a process for the production of paper and board which comprises: (a) introducing one or more fillers, one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibers; and (c) dewatering the obtained suspension. The present invention also relates to a process for the production of a filler composition which comprises: (a) introducing one or more fillers, one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into a storage tank.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: March 10, 2015
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventor: Patrik Simonson
  • Patent number: 8945345
    Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. A furnish and a paper or a paper board.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 3, 2015
    Assignee: UPM-Kymmene Corporation
    Inventors: Janne Laine, Monika Österberg, Miquel Delphine, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
  • Patent number: 8939155
    Abstract: A filter wrapper paper for a smoking article is shown, the paper having a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: January 27, 2015
    Assignee: Delfortgroup AG
    Inventors: Roland Zitturi, Dietmar Volgger, Dieter Möhring
  • Patent number: 8936820
    Abstract: Batch process for the manufacture of oxidized starch by contacting an aqueous medium comprising already oxidized starch with native starch and with at least one oxidizing agent selected from a peroxide compound or from an alkali metal hypochlorite, and by reacting them at a temperature below the gelatinization temperature of the native starch and of the oxidized starch, the reaction being conducted in the presence of a homogeneous manganese-based complex coordination catalyst when the oxidizing agent is a peroxide compound. The resulting oxidized starch can be used as an additive for the paper industry or for the food industry.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: January 20, 2015
    Assignee: Solvay SA
    Inventor: Pierre Dournel
  • Patent number: 8916027
    Abstract: A prepreg for further processing to form a decorative paper is obtainable by impregnation of a decorative base paper with an impregnating resin solution that contains at least one styrene-alkylacrylate-hydroxyethylmethacrylate copolymer and at least one water-soluble polymer, wherein alkyl stands for methyl, ethyl, propyl, or butyl and the prepreg is notable for improved resistance to splitting as well as better adhesion and flatness.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 23, 2014
    Assignee: Schoeller Technocell GmbH & Co. KG
    Inventor: Martina Wicher
  • Patent number: 8916243
    Abstract: A graphic medium and a method of making same employs a paper core having a normalized opacity within a range of about 0.15 to about 0.4 percent/grams per square meter. The graphic medium includes a first material layer on a first side of the paper core and a second material layer on one or both of the first side between the paper core and the first material layer and a second, opposite side of the paper core. The graphic medium has a translucent opacity between about 40% and about 90%. The method includes mechanically refining a mixture of wood fibers until a paper substrate is formed having the normalized opacity. The paper substrate is calendered using a paper making machine and the first and second material layers are applied to form the graphic medium.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 23, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xulong Fu, Lokendra Pal, Ronald J Selensky
  • Publication number: 20140367063
    Abstract: A fibrous sheet having a basis weight of between 20 and 1000 g/m2 that disintegrates in water, has 10% to 70% starch on the basis of the total weight of the dry fibrous sheet. The disintegration time in water, measured in accordance with standard NF Q34-020 applied to a specimen of the sheet of 9×8 cm2, is less than 50 seconds. A loss of strength of the sheet measured in accordance with a defined table test corresponds to a loss of strength of a specimen of said sheet forming an angle of at least 85° after having being wetted with water for a duration of 6 seconds, and/or a residual wet strength of the sheet relative to its dry strength, as measured according to a defined ring crush test, is less than 1%. The fibrous sheet may be used for the manufacture of a water disintegrable core in a roll of tissue paper.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Philippe COLIN, Jean-Claude DOZZI, Pierre PROBST, Véronique WISS, Rémy RUPPEL
  • Publication number: 20140352905
    Abstract: This is a method and composition for a paper pulp product used to create formable or moldable products from the paper pulp that cures with significant rigidity, stability and strength. The composition includes a mixture of raw paper, calcium carbonate (marble dust), starch, polyvinyl alcohol and water. Bleach may be added to create a substantially white or neutral product. The pulp composition is particularly suitable to molding and can be used to manufacture picture frames, small items of furniture and the like. The resulting product is highly suitable to art paper, arts and crafts. The process is extremely easy and results in a product that is highly adaptable for numerous uses.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: Friends Of Abilities First, Inc.
    Inventor: Jonathan Petefish
  • Patent number: 8900414
    Abstract: Fiber products, comprising in their body at least 20% by weight of cellulose fibers, and adequate amounts of an acid and a cationic retention aid for the acid, can be marked by means of a laser beam.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: December 2, 2014
    Assignee: Datalase, Ltd.
    Inventor: Adolf Käser
  • Patent number: 8894817
    Abstract: The invention provides methods and compositions for increasing the dry strength of paper. The invention utilizes a tailored strength agent whose size and shape is tailored to fit into the junction points between flocs of a paper sheet. The strength agents is in contact with the slurry for just enough time to collect at the junction points but not so much that it can migrate away from there.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: November 25, 2014
    Assignee: Ecolab USA Inc.
    Inventors: Weiguo Cheng, Mei Liu
  • Patent number: 8888957
    Abstract: The present invention relates to a process for producing paper which comprises: providing an aqueous suspension comprising cellulosic fibers, adding to the suspension, after all points of high shear, a cationic polysaccharide; an inorganic polymer P1 being a cationic polyaluminium compound; and a polymer P2 being an anionic polymer; and, dewatering the obtained suspension to form paper.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: November 18, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Fredrik Solhage, Joakim Carlén, Birgitta Johansson
  • Patent number: 8882964
    Abstract: The invention is directed towards methods, compositions, and apparatus for increasing the strength of paper made out of a furnish having a large proportion of OCC. The method involves the following steps: 1) Providing a paper furnish having a large amount of OCC in it, 2) adding strength promoter to the furnish prior to adding a strength agent to the furnish, 3) adding a strength agent to the furnish, and 4) making a paper product from the furnish. This method allows cheap OCC material to be used in a papermaking process without the quality problems that the anionic trash in OCC typically causes. Thus paper products having low costs and high quality can be produced.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 11, 2014
    Assignee: Nalco Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Weiguo Cheng
  • Publication number: 20140305606
    Abstract: A sizing composition includes from about 3 kg/ton to about 15 kg/ton of calcium propionate, an additive, and a balance of water. The additive is selected from the group consisting of starch, an optical brightener, a biocide, a defoamer, a surface size agent, a wet strength additive, and combinations thereof. The sizing composition has a pH ranging from 7 to 8.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 16, 2014
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
  • Publication number: 20140299286
    Abstract: This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 9, 2014
    Inventors: KAPIL M. SINGH, DENNIS W. ANDERSON, PETER M. FROASS, YAOLIANG HONG, KOSARAJU KRISHNA MOHAN, THOMAS R. ARNSON, YAN C. HUANG
  • Publication number: 20140302521
    Abstract: The invention discloses a cellulose or glass fibre paper for preservation of biological samples, which comprises 4-30 wt % of a hydrophilic branched carbohydrate polymer. It also discloses a method for preservation of biological samples by applying and drying them on the paper.
    Type: Application
    Filed: October 29, 2012
    Publication date: October 9, 2014
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Mattias Algotsson, Miles W. Burrows, Jimmy Hedin Dahlstrom, Ylva Laurin, Ronnie Palmgren, Jinyu Zou
  • Patent number: 8845861
    Abstract: A sizing composition for paper, characterised in that the sizing composition comprises (a) at least one optical brightener of formula (1), (b) a magnesium salt; and (c) a binding agent, which is selected from the group consisting of native starch, enzymatically modified starch and chemically modified starch; 0.1 to 15 parts of component (b) being present per part of component (a).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: September 30, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Andrew Clive Jackson, David Puddiphatt, Cédric Klein
  • Patent number: 8840760
    Abstract: The object of the process of the invention is to increase the retention of starch in the sheet of paper in order to reduce operating costs and increase the physical characteristics of the paper. To that end, it has been envisaged that trivalent cationic salts are added, metered into the slurry or in the process for obtaining starch in powder form or by mixing a percentage of trivalent salts in powder form with the starch in powder form, seeking the solution of said salts in the slurry, so that they dissolve during the dispersion of the slurry in the process for obtaining the sheet of paper. Organic polymers such as polyacrylamides, polyvinylamides and polydadmacs could optionally be applied in addition to said salts.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 23, 2014
    Assignee: Oriol Gracia Grandia
    Inventor: Oriol Gracia Grandia
  • Patent number: 8834678
    Abstract: The present disclosure relates generally to a tissue product having a creping composition disposed onto at least one surface thereof to increase the softness of the article, while retaining or improving manufacturing efficiency. The tissue products also have a sizing agent that increases the Wet Out time, without negatively impacting softness or machine runability. Preferably the creping composition comprises a cationic component and a film forming component, both of which are preferably water soluble. The cationic component carries a cationic charge that is capable of forming ionic bonds with the negatively charged fibers of the tissue web, thus providing a retention mechanism by which the creping composition is retained on the sheet. The overall retention of the creping composition on the sheet reduces the concentration of the composition in the machine process water, improving machine operability and runability.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: September 16, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank Gerald Druecke, Dave Allen Soerens, Benjamin Joseph Kruchoski, Frederick John Lang, Christopher Lee Satori, John Alexander Werner, IV, Cathleen Mae Uttecht, Mickey Joseph Authement, II, Peter Lee Carson, Jeremy Michael Brunette, Kenneth John Zwick, Elizabeth Oriel Bradley
  • Patent number: 8828188
    Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
  • Publication number: 20140246161
    Abstract: A water degradable paper sheet has a basis weight of 80 to 400 g/m2 and is dry-formed from paper fibres bound together by a water-soluble binder including starch, the amount of binder in the sheet being 30 to 70%. Additionally, a tube is formed by a cylinder having a wall that includes at least one dry-formed paper sheet including paper fibres bound together by a water-soluble binder.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: SCA TISSUE FRANCE
    Inventors: Pierre GRAFF, Veronique WISS, Remy RUPPEL, Pierre PROBST
  • Patent number: 8821689
    Abstract: A composition comprising starch, a biogum and water subjected to heat, shearing and optionally depolymerization is provided which is useful as a stable high solids dispersion useful in various applications including as wet-end additives for paper making.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: September 2, 2014
    Assignee: Penford Products Co.
    Inventors: Daryl Holland, Edward P. Pauley, Joseph S. Squires
  • Publication number: 20140231036
    Abstract: The invention relates to a fibrous product (2, 2.1, 2.2, 2.3) for packaging, in particular food product packaging, comprising at least one first fiber layer (4.1, 4.1?, 4.1?, 4.2, 4.2?, 4.2?, 4.3?, 4.4?, 4.5?, 4.6?, 14, 16, 18), a filter material (6) for binding mineral oil substances extending at least partly through said first fiber layer (4.1, 4.1?, 4.1?, 4.2, 4.2?, 4.2?, 4.3?, 4.4?, 4.5?, 4.6?, 14, 16, 18).
    Type: Application
    Filed: May 31, 2012
    Publication date: August 21, 2014
    Applicant: Smurfit Kappa hoya Papier and Karton GmbH
    Inventors: Armin Buschmann, Fulvio Cadonau, Ralf Honsbrok, Detlev Cichter, Olaf Truppner
  • Publication number: 20140224443
    Abstract: The present invention provides systems and methods for papermaking. In embodiments, the systems include a first population of fibers dispersed in an aqueous solution and complexed with an activator, and a second population of composite additive particles bearing a tethering material, wherein the addition of the second population to the first population attaches the composite additive particles to the fibers by the interaction of the activator and the tethering material. Methods for forming a fibrous web are also disclosed, in addition to paper products formed from such fibrous webs.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 14, 2014
    Applicant: NANOPAPER, LLC
    Inventors: Gangadhar Jogikalmath, Andrea Schneider, David S. Soane
  • Publication number: 20140220323
    Abstract: A paper sizing composition is provided, which comprises a water-soluble salt of Ca(II) and at least one organic acid; and starch. Methods of making and using the composition, and methods of making and using the recording sheets which include the composition, are disclosed.
    Type: Application
    Filed: March 17, 2014
    Publication date: August 7, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: Michael F. Koenig