Patents Assigned to International Paper Company
  • Publication number: 20200181840
    Abstract: Bleached polycrylic acid crosslinked cellulose fibers with reduced furfural content are disclosed. The reduced furfural content is accompanied by a strong reduction of malodor associated with crosslinked fibers. Methods of furfural reduction include treatment with hydrogen peroxide in the absence of alkaline or other bleaching agents subsequent to curing polyacrylic acid crosslinked cellulose fibers. Some embodiments of treated polycrylic acid crosslinked cellulose fibers have a furfural content lower than 1.3 ppm. In some embodiments, the reduction of furfural content of the treated crosslinked fibers compared to untreated crosslinked fibers is at least 55%. in some embodiments, furfural content decreases with aging of the treated crosslinked fibers.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 11, 2020
    Applicant: International Paper Company
    Inventors: Angel Stoyanov, Joerg Endres, Holger Beruda, Ludwig Busam
  • Patent number: 10641667
    Abstract: Collecting roll data associated with a sensing and mating rolls that form a nip uses first and second pluralities of sensors. Each sensor of the first plurality has a corresponding sensor in the second plurality which is associated with a same respective axial location on the sensing roll but is spaced-apart circumferentially. The sensors are located at axially spaced-apart locations of the sensing roll and generate either a first or second respective signal when entering the nip. Upon receiving a generated signal, a determination is made about which sensor generated the received signal and the membership of that sensor in one of the pluralities. Based upon a rotational position of the mating roll, a determination is made of which tracking segment associated with the mating roll enters the region of the nip concurrently with the signal to store the signal using the determined one tracking segment and the determined membership.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 5, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Kerry D. Figiel
  • Publication number: 20200085990
    Abstract: Disclosed herein are materials and structural elements for absorbent articles that incorporate at least one component of a chemiluminescent system configured to produce light upon contact with an aqueous system. This disclosure also relates to absorbent articles that incorporate materials or structural elements. This disclosure also relates to formulations and methods for treating materials or structural elements with one or more components of such a chemiluminescent system. Representative absorbent articles include disposable diapers and adult incontinence products. Representative chemiluminescent systems include bioluminescent systems.
    Type: Application
    Filed: June 28, 2019
    Publication date: March 19, 2020
    Applicant: International Paper Company
    Inventors: Johnway Gao, Brent A. Petersen, Denise Martin, Gary Nicklett
  • Publication number: 20200087435
    Abstract: Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP value of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 19, 2020
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Karen Brogan, Charles E. Miller, Angel Stoyanov, Torsten Lindner, Maike Siemons
  • Patent number: 10583956
    Abstract: A shipping container convertible to a display case and formed from a one-piece blank of sheet material. The container comprises an upper front panel, first, second, and third main panels, and a lower front panel connected in series at respective fold lines. Upper front side flaps foldably joined to the upper front panel comprise a respective one of a first removable section and a second removable section each defined between respective pairs of separation lines. The first removable section extends across only a portion of a first end of the container, and the second removable section extends across only a portion of the second end. A lid portion of the shipping container is completely detachable from a base portion of the shipping container by removing the first and second removable sections and separating the lid and base portions along a separation line.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: March 10, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Ignacio Padilla Hermosillo
  • Patent number: 10577145
    Abstract: A leak resistant tray and a method of forming the tray from a blank. The blank comprises a bottom panel, first and second side panels, and first and second end portions connected to peripheral edges of the bottom panel. Each end portion includes inner end panel structure having a lower end panel and an upper end panel. Each end portion further includes first and second intermediate panels connected to the first and second side panels, first and second outer end panels connected to respective first and second intermediate panels, and first and second triangular gusset panels, each gusset panel connected between one of the intermediate panels and the lower end panel. First and second gusset trough panels are connected to a respective one of the gusset panels and to a lower edge of one of the outer end panels.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 3, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Alex Dean Bevier
  • Publication number: 20200048444
    Abstract: A composition comprising 10 to 50 wt % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the dilution level for detection in a bag at 40° C. is equal to or less than 450 as determined by ASTM E679.
    Type: Application
    Filed: April 18, 2019
    Publication date: February 13, 2020
    Applicant: International Paper Company
    Inventors: Robert T. Hamilton, Harshadkumar M. Shah, Jeffrey J. Cernohous, Neil R. Granlund, David E. Fish
  • Publication number: 20200048435
    Abstract: A composition comprising 10 to 50 weight % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the composition has a brightness of at least 20 as measured by the Brightness Test. The wood pulp fiber can be bleached chemical wood pulp fiber. The brightness may be at least 30 as measured by the Brightness Test.
    Type: Application
    Filed: April 18, 2019
    Publication date: February 13, 2020
    Applicant: International Paper Company
    Inventors: Robert T. Hamilton, Harshadkumar M. Shah, Jeffrey J. Cernohous, Neil R. Granlund, David E. Fish
  • Patent number: 10556719
    Abstract: A pallet stabilizer formed from a paperboard blank. The pallet stabilizer includes a generally planar central panel having opposing first and second outer longitudinal sides, and opposing first and second lateral sides. A hollow beam structure including at least one beam body is defined by a body flap formed integral with the central panel and comprising a plurality of flap panels connected in series at respective panel fold lines. Two of the flap panels define longitudinally extending opposing beam sides extending transverse to a plane defined by the central panel. One of the flap panels is located distal from the central panel and is hingedly connected to each of the two flap panels defining the beam sides at respective panel fold lines. Opposing longitudinal beam edges are spaced longitudinally inward from the opposing outer longitudinal sides of the central panel.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: February 11, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Julio Cesar Mendoza Castro
  • Patent number: 10555626
    Abstract: A folded blank for forming a display case and a display case formed from the folded blank. The folded blank comprises a one-piece blank including a first panel, a second panel, a third panel and a fourth panel connected in series at respective first, second and third vertical fold lines. The first panel is folded about the first vertical fold line and is engaged on a first portion of the second panel at a first manufacturer's joint strip. The fourth panel is folded about the third fold line and is engaged on the first panel at a second manufacturer's joint strip. The first portion forms a tear-away section defined by at least one separation line on the second panel. The first manufacturer's joint strip retains the tear-away section in engagement with the first panel during erection of the folded blank to form the display case having a display window.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 11, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Matthew Wayne Kistner
  • Publication number: 20200040525
    Abstract: Pulps, cellulose ether products, and methods of making pulps are described.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 6, 2020
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Mengkui Luo, Michael Rea, Angela Dodd, Andrew Dodd, Amy Anderson-Gaber, Kris Lindenauer, Hugh West, Charles Miller
  • Publication number: 20200024027
    Abstract: An insert formed from a one-piece blank of sheet material. The insert comprises a first half comprising a first plurality of connected panels; a second half connected to the first half and comprising a corresponding, second plurality of connected panels; a first and second end comprising lateral extensions extending from respective first and second opposing ends of two panels from each of the first and second plurality of panels; and a plurality of popout tabs extending outward from an outer surface of the insert. The first and second half define respective first and second internal receiving areas each surrounded on all sides and on opposing ends by (i) two layers of the sheet material and/or (ii) an air gap defined between the outer surface of the insert and an adjacent portion of an overwrap material. A one-piece blank of sheet material for forming a shipping insert is also provided.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 23, 2020
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: Kent Owen Nelson
  • Patent number: 10533909
    Abstract: Collecting roll data associated with a sensing roll and a mating roll forming a nip includes generating sensor signals from a first sensor array on the sensing roll and a second sensor array on the mating roll during rotations of the mating rolls and sensing rolls. A periodically occurring first time reference is associated with each rotation of the mating roll and a periodically occurring second time reference is associated with each rotation of the sensing roll. For a received sensor signal, based on whether the received signal is from the sensors of the mating roll or the sensing roll, a tracking segment on the other roll is detected that enters a region of the nip concurrent with the sensor that generated the received signal. The detection is made from either a most-recent-identified first time reference or second time reference. The received signal can then be stored using the detected tracking segment.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: January 14, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Kerry D. Figiel
  • Publication number: 20200002344
    Abstract: Disclosed herein are synthesis methods for coelenterazine. Also disclosed are articles including the coelenterazine and coelenterazine derivatives. Representative absorbent articles include disposable diapers and adult incontinence products.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Applicant: International Paper Company
    Inventors: Rajagopala Reddy Duvvuru, Rama Bhatt, Anil Kumar
  • Publication number: 20200002891
    Abstract: A pulp in accordance with a particular embodiment includes crosslinked cellulose fibers. The pulp can have high brightness, reactivity, and intrinsic viscosity. The pulp, therefore, can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with a particular embodiment of the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. The bleaching process can reduce a lignin content of the pulp to less than or equal to 0.09% by oven-dried weight of the crosslinked cellulose fibers. Crosslinking the cellulose fibers can include exposing the cellulose fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: Mengkui Luo
  • Patent number: 10519599
    Abstract: Collecting data includes generating a sensor signal from each of a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a region of a nip between the sensing roll and mating roll during each rotation of the sensing roll; wherein a web of material travels through the nip and a continuous band contacts a region of the web of material upstream from or at the nip. A periodically occurring starting reference is generated associated with each rotation of the continuous band and the signal generated by each sensor is received so that the one of the plurality of sensors which generated this signal is determined and one of a plurality of tracking segments associated with the continuous band is identified. The signal is stored to associate the respective sensor signal with the identified one tracking segment.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 31, 2019
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Kerry D. Figiel
  • Patent number: 10513827
    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 first mixture; contacting at least one debonder surfactant with the first mixture and raising the pH to a second pH, which is higher than the first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and drying the web, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one 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: January 25, 2016
    Date of Patent: December 24, 2019
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: James E. Sealey, Michael Hevenor
  • Publication number: 20190358360
    Abstract: Absorbent materials configured to sequester trimethylamine (TMA), absorbent articles made therefrom, related methods of use, methods of measuring a reduction of free TMA, and related methods of making absorbent articles are described.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 28, 2019
    Applicant: International Paper Company
    Inventors: Mary Virginia Schoolfield, Hugh West
  • Patent number: D882400
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 28, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Sean M. Morrison
  • Patent number: D885889
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: June 2, 2020
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Kent Owen Nelson