Processes And Products Patents (Class 162/100)
  • Patent number: 12163287
    Abstract: An embodiment of the present disclosure provides fine cellulose fibers that satisfy, in measurement using an automatic fiber shape analyzer, all of (i) the length weighted average fiber length of fibers having a fiber length of at least 100 ?m is 110-500 ?m, (ii) the average fiber diameter is at most 42.5 ?m, (iii) the fine fiber area ratio is at most 90%, (iv) the number frequency of fibers having a fiber length of 20-56 ?m is at most 97% among fibers having a fiber length of less than 100 ?m, (v) the number frequency of fibers having a fiber length of at least 411 ?m is at most 54% among fibers having a fiber length of at least 100 ?m, and (vi) the average fiber diameter is 20-150 nm in terms of specific surface area.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: December 10, 2024
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hirofumi Uchimura, Hirofumi Ono, Hirotaka Asai, Yoko Fujimoto, Naoaki Yamasaki, Kazufumi Kawahara
  • Patent number: 12104298
    Abstract: Disclosed herein are The invention relates to curled fiber mats. The invention further includes methods of making curled fiber mats, comprising forming a fibrous media from a fibrous material, treating the fibrous media with a crosslinking agent to form a treated fibrous media, and drying and/or curing the treated fibrous media to produce a curled fiber mat that has a permanent curl.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 1, 2024
    Assignee: Resolute FP Canada, Inc.
    Inventor: Shaune John Hanley
  • Patent number: 12083554
    Abstract: A process for the spraying of microfibrillated cellulose (MFC) is presented, which has a comparatively high solids content, onto a surface, thus forming a stable and homogeneous film coating of MFC on said surface. Therein, the MFC of the comparatively high solids content is subjected to a pressure drop in a nozzle, which pressure drop exerts shear pressure onto the MFC, thus lowering the viscosity during the spraying and coating process.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 10, 2024
    Assignee: Borregaard AS
    Inventor: Anne Opstad
  • Patent number: 12006176
    Abstract: To minimize the cost of a fiber web due to the web, particularly a board web, being manufactured overly thick to compensate for loss of caliper in the reel-up, the web is made thicker just for the inner layers of what will become a parent roll. The caliper of the web is measured as or after it is unwound. A caliper curve of the parent roll as a function of the diameter of the parent roll is calculated as a function of the diameter of the parent roll and/or the customer roll. The fiber web is adjusted by changing running parameters of the production line: web speed i.e. production speed, headbox-flow, head-box consistency, coating weight of the coating paste or calender nip load.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 11, 2024
    Assignee: Valmet Technologies, Inc.
    Inventor: Jaakko Haapanen
  • Patent number: 11920298
    Abstract: A method and system are disclosed for actively cooling a fluid, particularly a foamed fluid. The foamed fluid may comprise a foamed suspension of fibers that is used to form a web. The foamed suspension of fibers is fed around a recirculation loop and actively cooled using a heat exchanger.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 5, 2024
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Aisan Khodaei
  • Patent number: 11795625
    Abstract: The present invention provides an embossed multi-ply tissue product that is visually pleasing and has improved physical attributes. For example, the inventive multi-ply tissue products have reduced stiffness, such as a GM Flexural Rigidity less than about 600 mg*cm, improved absorbency, such as a Residual Water (WResidual) value less than about 0.15 g, and improved wet resiliency, such as a wet elastic strain ratio greater than about 32 percent.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: October 24, 2023
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Christopher Steven LeCount, Kevin Joseph Vogt, Sarah Ann Funk, Jeffrey Dean Holz, Jason Daniel Hanke, Mike Thomas Goulet
  • Patent number: 11753770
    Abstract: The present disclosure is directed to a Pickering emulsion comprising cellulose filaments. The heterogeneity of the cellulose filament material is critical and beneficial to the formation of stable emulsions. Emulsions with high stability can be prepared by controlling the CF surface properties. It is provided an emulsion comprising an internal phase dispersed in a continuous external phase and cellulose filaments located at the interface of the internal phase and the external phase, wherein the emulsion comprises 50% in volume or more of the internal phase and a method of producing same.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 12, 2023
    Assignee: FPInnovations
    Inventors: Wadood Yasser Hamad, Chuanwei Miao
  • Patent number: 11655593
    Abstract: A method for manufacturing a multi-layered fibrous web is disclosed, which includes at least two fibrous layers, where each layer is formed from one or more fibre stocks. The fibrous layers are combined prior to subjecting the multilayered fibrous web to wet-pressing and drying. At least one layer of the multi-layered fibrous web is formed from a fibre stock including at least 50 weight-% of a chemi-thermomechanical pulp (CTMP), a hardwood kraft pulp and/or a recycled fibre material calculated from a thick stock applied to a particular layer approach system. A first strength component and a second strength component are added to the fibre stock. The first strength component includes a cationic strength agent and the second strength component includes a synthetic amphoteric polymer composition having a net charge from ?3 to +1 meq/g (dry), at a pH of 7.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: May 23, 2023
    Assignee: Kemira Oyj
    Inventors: Matti Hietaniemi, Asko Karppi, Jukka Rautiainen
  • Patent number: 11655594
    Abstract: The present invention relates to compositions, such as filled and coated papers, comprising microfibrillated cellulose and inorganic particulate material.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: May 23, 2023
    Assignee: FiberLean Technologies Limited
    Inventors: John Claude Husband, Per Svending, David Robert Skuse
  • Patent number: 11619007
    Abstract: The invention relates to a vegetable paper comprising fibres of a plant that has undergone extraction in a solvent.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 4, 2023
    Assignee: Mativ Holdings, Inc.
    Inventors: Cédric Rousseau, Laetitia Barat
  • Patent number: 11459700
    Abstract: A method of and an arrangement for adding at least one additional stock component to an approach flow system (30) of a fiber web machine by mixing the at least one additional stock component to a fibrous stock such that the stock flow is equalized (50) and the at least one additional stock component is introduced to the stock flow by injection mixing (80).
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: October 4, 2022
    Assignees: WETEND TECHNOLOGIES OY, VALMET TECHNOLOGIES OY
    Inventors: Antti Ketolainen, Jouni Matula, Leif Piippola
  • Patent number: 11421184
    Abstract: The present invention is in the field of cleaning compositions. In particular it relates to liquid, gelled or pasty cleaning compositions comprising one or more detergent surfactants. The invention provides cleaning compositions comprising water, one or more detergent surfactants, a water immiscible oil-based phase, and defibrillated primary cell wall material comprising microfibrils. The invention also relates to a method for preparing a cleaning composition comprising water, one or more detergent surfactants and defibrillated primary cell wall material comprising microfibrils, wherein the method includes a high shear treatment step.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: August 23, 2022
    Assignee: CONOPCO, INC.
    Inventors: Leonardus Marcus Flendrig, Gerrit Jan Willem Goudappel, Anke Kuijk, Sandra Joyce Veen, Orlin Dimitrov Velev, Krassimir Petkov Velikov, Jan Adrianus Verheij, Yan Zeng
  • Patent number: 11331830
    Abstract: The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 17, 2022
    Assignee: Stora Enso OYJ
    Inventors: Johan Kallstrom, Fredrik Kallstrom, Martin Malmqvist, Roger Bergstrom, Conny Johansson, Maria Tornblom, Sofi Karlsson
  • Patent number: 11313079
    Abstract: The invention provides woven papermaking fabrics having a machine direction (MD) axis and a cross-machine direction (CD) axis, a machine contacting surface and a sheet contacting surface where the sheet contacting surface comprises a plurality of twill woven protuberances defining valleys there between. Generally the protuberances are skewed relative to a principle axis of the fabric, such as the MD axis and have a non-zero element angle. The protuberances generally have an upper surface defining the upper most surface plane of the web contacting surface of the fabric. Further, the protuberance upper surface is substantially planar providing the protuberances with a height that is substantially constant along the length of the protuberance.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 26, 2022
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Lynda Ellen Collins, Mark Alan Burazin
  • Patent number: 11286313
    Abstract: Methods for manufacturing, re-activating and using compositions including fibrillated parenchymal cellulose and activator are provided. The activator has a low molecular weight and is used to facilitate reactivation.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 29, 2022
    Assignee: BETULIUM OY
    Inventors: Antti Laukkanen, Jason McKee, Nikolaos Pahimanolis
  • Patent number: 11248343
    Abstract: The present invention relates to a process for improving the strechability of films comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the oxygen barrier properties. According to the present invention, a film is formed from a suspension comprising microfibrillated cellulose having a broad size distribution.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: February 15, 2022
    Assignee: Stora Enso OYJ
    Inventor: Isabel Knöös
  • Patent number: 11035079
    Abstract: The invention relates to a vegetable paper comprising fibres of a plant that has undergone extraction in a solvent.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 15, 2021
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Cédric Rousseau, Laetitia Barat
  • Patent number: 10933955
    Abstract: A recirculation system for a crude oil cargo tank barge having at least one tank includes a pump in fluid communication with at least one tank and recirculation piping in fluid communication with the pump and at least one tank. The pump pumps fluid from at least one tank to the recirculation piping. The recirculation piping then returns the pumped fluid to at least one tank.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: March 2, 2021
    Assignee: AMERICAN COMMERCIAL BARGE LINE LLC
    Inventors: Michael Poindexter, Dave Cooley, Raymond Aubrey
  • Patent number: 10895118
    Abstract: A trimodal hybrid particle mix loss prevention material (LPM) is provided. The trimodal hybrid particle mix LPM includes date palm seed particles produced from date palm seeds, scrap tire particles produced from scrap tires, and date tree pruning waste particles produced from date tree pruning waste. The LCM may include date palm seed particles in the range of about 40 wt % to about 50%, scrap tire particles in the range of about 30 wt % to about 40 wt %, and date tree pruning waste particles in the range of about 15 wt % to about 25 wt %. Methods of loss prevention and manufacture of a trimodal hybrid particle mix LPM are also provided.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 19, 2021
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10895119
    Abstract: A trimodal hybrid particle mix loss prevention material (LPM) is provided. The trimodal hybrid particle mix LPM includes date palm seed particles produced from date palm seeds, scrap tire particles produced from scrap tires, and date tree pruning waste particles produced from date tree pruning waste. The LCM may include date palm seed particles in the range of about 40 wt % to about 50%, scrap tire particles in the range of about 30 wt % to about 40 wt %, and date tree pruning waste particles in the range of about 15 wt % to about 25 wt %. Methods of loss prevention and manufacture of a trimodal hybrid particle mix LPM are also provided.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 19, 2021
    Assignee: Saudi Arabian Oil Company
    Inventor: Md Amanullah
  • Patent number: 10865520
    Abstract: A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 15, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Jyrki Tapio Jaakkola, Antti Heikkinen
  • Patent number: 10828257
    Abstract: The purpose of the present invention is to provide a disintegrating tablet having excellent tablet hardness and disintegrability, which is suitable for pharmaceuticals and various kinds of foods such as supplemental foods, nutrition function foods and health foods has been desired as highly convenient forms which can safely be taken by patients who have difficulty in swallowing drugs, elderly people, children, etc., and which can easily be taken without water irrespective of places; and a disintegrative particulate composition comprised in the disintegrating tablet. The present invention relates to a disintegrative particulate composition comprising a disintegrator component and micro-fibrillated cellulose, and a disintegrating tablet for pharmaceuticals or foods, comprising the disintegrative particulate composition, which has excellent tablet hardness and disintegrability.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 10, 2020
    Assignee: DAICEL CORPORATION
    Inventors: Takahiro Hiramura, Kiyoshi Ikura, Sae Itaya, Tomohito Okabayashi, Yoshihisa Takigawa, Anan Sakaguchi, Naohiro Hashikawa
  • Patent number: 10753041
    Abstract: Processes for producing cellulose microfibrils from herbaceous plant material using enzyme compositions, the cellulose microfibrils obtained from the processes and their uses, and compositions comprising the cellulose microfibrils are described.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: August 25, 2020
    Assignees: CELLUCOMP LTD., NOVOZYMES A/S, UNIVERSITY OF COPENHAGEN
    Inventors: David Hepworth, Eric Whale, Bjoern Lennart Pierre Alexander Cassland, Henrik Lund, Lisbeth Kalum, Peter Ulvskov, Bodil Jørgensen
  • Patent number: 10745857
    Abstract: A process for modifying the paper burst strength enhancing attributes of microfibrillated cellulose may include subjecting an aqueous suspension including microfibrillated cellulose, and optionally inorganic particulate material, to high shear, wherein the high shear is generated, at least in part, by a moving shearing element, to modify the paper burst strength enhancing attributes of the microfibrillated cellulose. An aqueous suspension may include microfibrillated cellulose, and optionally inorganic particulate material, obtainable by the process. A papermaking composition and/or a paper product may be obtained from the process.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 18, 2020
    Assignee: FiberLean Technologies Limited
    Inventors: Kai Lee, Guillaume Tellier, Felix John Gunnar Bacon, David Robert Skuse
  • Patent number: 10711112
    Abstract: A differential density absorbent towel paper web having from about 45% to about 90% by weight of the dry fiber basis of the differential density absorbent towel paper web of a softwood pulp fiber mixture and from about 10% to about 55% by weight of the dry fiber basis of the differential density absorbent towel paper web of a hardwood pulp fiber mixture is provided. The softwood pulp fiber mixture has: 1) from about 20.0% to about 88.5% by weight of the dry fiber basis of softwood pulp fiber; and, 2) from about 0.05% to about 5.0% by weight of the dry fiber basis of strengthening additive. The hardwood pulp fiber mixture has: 1) from about 9.9% to about 54.9% by weight of the dry fiber basis of hardwood pulp fibers; and, 2) from about 0.05% to about 20.0% by weight of the dry fiber basis of cellulose nano-filaments.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 14, 2020
    Assignee: Mercer International, Inc.
    Inventor: Tobias Ziegenbein
  • Patent number: 10687675
    Abstract: A differential density absorbent towel paper web comprising at least one ply. The differential density absorbent towel paper web has from about 45% to about 90% of a softwood pulp fiber mixture and from about 10% to about 55% of a hardwood pulp fiber mixture. The softwood pulp fiber mixture has from about 20% to about 89.9% of softwood pulp fibers; from about 0.05% to about 20% cellulose nanofilaments; and, from about 0.05% to about 5.0% of strengthening additive.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: June 23, 2020
    Assignee: Mercer International Inc.
    Inventor: Tobias Ziegenbein
  • Patent number: 10682021
    Abstract: A differential density soft sanitary tissue paper web comprising at least one ply. The differential density soft sanitary tissue paper web comprises from about 2% to about 56.5% of a softwood pulp fiber mixture and from about 43.5% to about 99.9% of a hardwood pulp fiber mixture. The softwood pulp fiber mixture comprises from about 0% to about 56.4% of softwood pulp fiber; from about 0.05% to about 20.0% of cellulose nanofilaments; and, from about 0.05% to about 3.0% of strengthening additive.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: June 16, 2020
    Assignee: Mercer International Inc.
    Inventor: Tobias Ziegenbein
  • Patent number: 10619298
    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: Grant
    Filed: November 18, 2014
    Date of Patent: April 14, 2020
    Assignee: Enzymatic Deinking Technologies, L.L.C.
    Inventors: James G. Tausche, Jianhua Ma, Chengliang Jiang
  • Patent number: 10604589
    Abstract: Cellulose is oxidized catalytically using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical. The oxidation is performed in a reaction medium which is at medium consistency of cellulosic pulp, which is above 6%, more preferably equal to or higher than 8%, and most preferably in the range of 8-12%. The reaction medium is mixed in a reactor through circulation of the reaction medium back to the reactor.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: March 31, 2020
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Taisto Tienvieri, Isko Kajanto, Tero Ojala, Sami Saarela, Markus Nuopponen, Timo Paakkonen, Tapani Vuorinen
  • Patent number: 10604893
    Abstract: The present invention provides a method for producing fibrillated cellulose, the method comprising providing pulp, treating said pulp at a consistency of at least 10% with a cellulase, and fibrillating said pretreated pulp to obtain fibrillated cellulose. The present invention also provides a nanofibrillar cellulose product.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: March 31, 2020
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Isko Kajanto, Markus Nuopponen, Jaakko Pere, Teija Jokila
  • Patent number: 10603812
    Abstract: The invention is a process including the steps of manufacturing of compreg laminated wood and transforming the wood thus obtained to ornamental and utility products, including steps of quality checking, veneer selection, Impregnation of veneer with solution of dye and thermosetting resin, drying in kiln, glue spreading followed by bunching, followed by cooling resulting in creation of slab, followed by trimming & cutting of slabs into strips of small sizes, shaping drawing on the sheet as per the profile required, shaping and profiling by CNC Router Machines, grinding and shaping by expert craftsman to bring out the color patterns, end rounding for smooth edges, grinding using various grits of emery wheels for surface finish, polishing/buffing for mirror like surface finish.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: March 31, 2020
    Assignee: Knitpro International
    Inventor: A. K. Rastogi
  • Patent number: 10570261
    Abstract: A process for making absorbent towel paper webs is provided. The process comprises the steps of (a) providing a papermaking furnish having from about 45% to about 90% by weight of the dry fiber basis of the tissue towel paper web of a refined softwood pulp fiber mixture having from about 20.0% to about 88.5% by weight of softwood pulp fiber and from about 0.05% to about 5.0% by weight of strengthening additive and from about 10% to about 55% by weight of the dry fiber basis of the absorbent towel paper web of a hardwood pulp fiber mixture having from about 9.9% to about 54.9% by weight of hardwood pulp fibers and from about 0.05% to about 20.0% by weight cellulose nanofilaments; (b) forming a wet fibrous web from the paper making furnish; and, (c) drying the web until the web contains not more than about 10% by weight moisture.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 25, 2020
    Assignee: Mercer International Inc.
    Inventor: Tobias Ziegenbein
  • Patent number: 10463205
    Abstract: A process for making absorbent towel paper webs is provided. The process has the steps of (a) providing a papermaking furnish having from about 45% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a refined softwood pulp fiber mixture having from about 20% to about 89.9% by weight of softwood pulp fiber, from about 0.05% to about 20% by weight of cellulose nanofilaments, and from about 0.05% to about 5.0% by weight of strengthening additive, and from about 10% to about 55% by weight of the dry fiber basis of the absorbent towel paper web of a hardwood pulp fiber mixture; (b) forming a wet fibrous web from the paper making furnish; and, (c) drying the web until the web contains not more than about 10% by weight moisture.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 5, 2019
    Assignee: Mercer International Inc.
    Inventor: Tobias Ziegenbein
  • Patent number: 10422060
    Abstract: A holding material including: inorganic fibers that include 70 wt % or more of an alumina component an organic binder other than polyacrylamide of which the surface is negatively charged, alumina sol, and polyacrylamide having a weight-average molecular weight of 3,000,000 to 6,000,000, wherein the amount of the alumina sol is 2 to 8 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers, and the amount of the polyacrylamide is 0.01 to 1.0 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 24, 2019
    Assignee: NICHIAS CORPORATION
    Inventors: Akihiro Nakashima, Kazutoshi Isomura, Hiroki Nakamura, Yuki Takeda
  • 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