Non-fiber Additive Patents (Class 162/158)
  • Patent number: 10993900
    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: August 29, 2019
    Date of Patent: May 4, 2021
    Assignee: Lamberti SPA
    Inventors: Valentina Langella, Mauro Riccaboni, Barbara Biasotti, Chiara Fumagalli, Giovanni Floridi, Giuseppe Li Bassi
  • Patent number: 10927503
    Abstract: The invention discloses a method to enable the efficient use of surfactants in web forming of a cellulose containing material, e.g. in the making of paper or paperboard. The method comprises the addition of microfibrillated cellulose (MFC) or nanocrystalline cellulose (NCC) to the white water in a web-forming process in order to form complexes with surface active agents. The formed complexes are at least partly recycled to the process. This enables the producer to have control over the concentration of surface active agents in the system.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 23, 2021
    Assignee: Stora Enso OYJ
    Inventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen
  • Patent number: 10889939
    Abstract: The present application discloses a sizing method for making paper. An alkenyl succinic anhydride (ASA) is added to a papermaking process. An aluminum salt is added in one or more process steps during the papermaking process. Preferably, the aluminum salt is an aluminum salt which can generate free aluminum ion in aqueous solution. The sizing method of the present application enhances the usage efficiency of a sizing agent and the aluminum salt, as well as provides paper having a high moisture content.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: January 12, 2021
    Assignee: ECOLAB USA INC.
    Inventors: Zhi Chen, Jinhai Xiao, Xiaofeng Zhang, Kun Hou, James L. Thomas, Kaihong Huang
  • Patent number: 10844541
    Abstract: The present invention relates to a release aid that includes at least one succinic anhydride derivative for use in a papermaking process. For example, the release aid of the present invention is particularly useful for use in a paperweb creping process. The present invention also relates to a paperweb creping method that includes a release aid comprising at least one succinic anhydride.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: November 24, 2020
    Assignee: ECOLAB USA INC.
    Inventors: Jia Wu, Yulin Zhao, Xiao Zhang
  • Patent number: 10844544
    Abstract: A method of measuring hydrophobic contaminants in a pulp slurry or a papermaking system includes the steps of providing an aqueous paper mill sample, filtering the aqueous paper mill sample to produce a filtrate comprising particles, and collecting an image of the particles in a measured volume of the filtrate. The method also includes the steps of analyzing the image to determine a size and morphology of the particles in the measured volume of filtrate, identifying spherical particles having a size of from about 1 micron to about 20 microns in the measured volume of filtrate, and quantifying a number of the spherical particles having the size of from about 1 micron to about 20 microns in the measured volume of filtrate. This method is useful for papermakers for deposition diagnostics, prevention, and contaminant control treatment optimization.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 24, 2020
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Fushan Zhang, Matthew John Barrett
  • Patent number: 10844549
    Abstract: In one or more embodiments, the present invention is directed to a moisturizing tissue paper having excellent softness, smoothness, and strength. In various embodiments, the present invention provides a two-ply tissue paper containing a moisturizing agent having a basis weight per ply of 16.6 to 17.9 g/m2, a two-ply paper thickness of 143 to 159 ?m, and containing a polyol, hyaluronic acid, a fatty acid ester-based compound, and a fatty acid amide-based compound.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: November 24, 2020
    Assignee: Daio Paper Corporation
    Inventor: Shuta Yasui
  • Patent number: 10800869
    Abstract: A polymer composition includes a first host polymer, which is a copolymer of (meth)acrylamide and at least one cationic first monomer, and a second polymer, which is a copolymer of (meth)acrylamide and at least one cationic second monomer. The second polymer is polymerised in presence of the first host polymer, and the first host polymer has a higher cationicity than the second polymer, the difference in cationicity of the first host polymer and the second polymer being at least 3 mol-%, at least 5 mol-%, more preferably at least 7 mol-%. The polymer composition has a standard viscosity of >2.0 mPas, measured at 0.1 weight-% solids content in an aqueous NaCl solution (1 M), at 25° C., using Brookfield VII T viscometer with UL adapter. The invention relates also to uses of said polymer composition.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 13, 2020
    Assignee: Kemira Oyj
    Inventors: Matti Hietaniemi, Rosa Carceller, Asko Karppi, Joonas Likander
  • Patent number: 10781555
    Abstract: The present invention relates to a sizing agent composition comprising starch, lignosulfonate and poly(alkyl acrylate), poly(alkyl (meth)acrylate), a mixture of poly(alkyl acrylate) and poly(alkyl methacrylate) or a copolymer of alkyl acrylate and alkyl (meth)acrylate. The present invention further relates to a method for preparing the sizing agent composition, and use of the sizing agent composition for sizing paper, paper products or board.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: September 22, 2020
    Assignee: Kemira Oyj
    Inventors: Anneli Lepo, Elsi Turunen, Tarja Turkki
  • Patent number: 10751910
    Abstract: A concrete curing blanket having an absorbent sheet including at least 50% viscose fibers and 5-20% polyethylene, by weight. Super absorbent materials are positioned within the absorbent sheet. A vapor barrier is bonded to the absorbent sheet to prevent dehydration of the concrete curing blanket while in use.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 25, 2020
    Assignee: Ramshorn Corporation
    Inventors: Randall C. Richards, Gary M. Crowel
  • Patent number: 10723809
    Abstract: Microcarriers, matrices and scaffolds for growing mammalian cells are provided which include copolymer particles and matrices comprising of polysaccharide-polyamine copolymers. The copolymeric particles and matrices have a pore size of at least 50 microns and permit the mammalian cells to grow both on an exterior surface of the particles and matrices and within an interior of the particles and matrices. Methods for making such microcarriers, matrices and scaffolds, and compositions are also provided. Methods for growing mammalian cells utilizing such microcarriers, matrices and scaffolds and compositions are also provided.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 28, 2020
    Assignee: HOWARD UNIVERSITY
    Inventors: James W. Mitchell, Dazhi Yang
  • Patent number: 10697118
    Abstract: The present invention was accomplished in order to provide a method for producing a sheet containing fine fibers, which enables production of a sheet containing fine fibers without producing wrinkles. The present invention provides a method for producing a sheet containing fine fibers comprising a coating step of coating a dispersion containing fine fibers having a fiber diameter of 1000 nm or smaller on a base material, and a drying step of drying the dispersion containing fine fibers coated on the base material to form a sheet containing fine fibers.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 30, 2020
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Eiichi Mikami, Mitsuru Tsunoda, Hayato Fushimi
  • Patent number: 10688468
    Abstract: A filter composition effective in reacting with airborne or gaseous organic impurities, such as formaldehyde. The filter composition is formed from a filter substrate, such as for example, a fibrous web or extruded carbon block, treated with tris-(hydroxymethyl) aminomethane. The unexpected result of this combination is a longer lasting filter capable of adsorbing organic airborne impurities for a much longer period of time than an untreated filter media of the same type. The removal of formaldehyde is presented as an illustrious example.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 23, 2020
    Assignee: Graver Technologies LLC
    Inventors: Robert W. Rezuke, Kartik Potukuchi
  • Patent number: 10683616
    Abstract: The invention provides a method for the production of a composite comprising microfibrillated cellulose (MFC) and precipitated calcium carbonate. The method is characterized in that MFC is added to a suspension of calcium hydroxide during carbonation, whereby calcium carbonate is precipitated onto fibers or fibrils of the MFC in a controlled manner. By adding microfibrillated cellulose to the calcium suspension during the carbonation, the brightness and the strength of the MFC/PCC-composite is enhanced. Moreover, the inventive method facilitates the distribution of calcium dioxide and MFC in the suspension and thus gives rise to a more homogenous product.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 16, 2020
    Assignee: Stora Enso OYJ
    Inventors: Philip Håkansson, Isto Heiskanen
  • Patent number: 10669200
    Abstract: The invention relates to a method for producing artificial crushed sand by means of a thermal treatment using sand in the form of fine sand (FS/FSa) and/or round sand as the starting material (1). The starting material (1) in variant A is heated to a melting temperature by bundling sun rays (13), and/or the starting material in variant B is heated to a melting temperature by using a conventional melting device which achieves its energy supply using converted or stored solar power, whereby each of a plurality of sand grains are melted together into a three-dimensional intermediate product (2). The intermediate product (2) produced in this manner is cooled and finally comminuted to a particle size of less than 2 mm in a comminuting process. An end product (3) is produced which differs from the starting material (1) with respect to the shape and surface roughness. The method offers a long-term solution for meeting the demand for crushed sand and provides sand for the construction industry.
    Type: Grant
    Filed: May 9, 2015
    Date of Patent: June 2, 2020
    Assignee: BLACK RAMEL LIMITED
    Inventors: Dennis Behnisch, Jovan Ikic
  • 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