Patents Assigned to International Paper Company
  • Patent number: 11370576
    Abstract: A container comprising a bottom panel defining a base of the container, and a plurality of side walls extending from the bottom panel and defining an interior area of the container, wherein the plurality of side walls include at least opposing first and second side walls. A first flange structure is connected to each of the first and second side walls along respective fold lines at an upper edge of the container. Each first flange structure straddles a respective side wall and comprises an inner flange portion extending over the interior area of the container, and an outer flange portion, coplanar with the inner flange portion, extending away from the interior of the container, wherein the outer flange portion is defined by one or more tabs.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: June 28, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Alex Dean Bevier
  • Patent number: 11352748
    Abstract: Pulps, cellulose ether products, and methods of making pulps are described.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: June 7, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Mengkui Luo, Michael Rea, Angela Dodd, Andrew Dodd, Amy Anderson-Gaber, Kris Lindenauer, Hugh West, Charles Miller
  • Patent number: 11353113
    Abstract: A seal assembly including: a collar having an opening configured to receive a rotatable shaft, an annular member having an annular opening configured to receive the collar, and first and second end plates fixedly coupled to a respective one of the first and second end surfaces of the collar. An outer surface of the collar includes one or more helical threads. The collar has a first axial length defined between first and second end surfaces of the collar, and the annular member has a second axial length defined between first and second end surfaces of the annular member, in which the second axial length is less than the first axial length. Also provided are an assembly comprising a seal assembly in accordance with the present disclosure and a method for preventing contamination of a sealed chamber.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 7, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Steven George Scheer
  • Patent number: 11345508
    Abstract: A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels at opposing lateral edges of the blank, and opposing end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel, an outer end panel hingedly connected to the inner end panel at hinge portions, and first and second corner panels, each corner panel forming a gusset between one of the side panels and the inner end panel, each gusset including a notch area for receiving one of the hinge portions. First and second locking tabs are defined in the outer end panel. The outer end panel can be folded over the inner end panel to position the hinge portions in the notch areas, and the locking tabs can be positioned between the gussets and the inner end panel.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 31, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Mark Anthony Wisecarver, James William Sloan, II, Kenneth Calvin Hyatt, Jade Kiara Housewirth
  • Patent number: 11339532
    Abstract: Methods of forming crosslinked cellulose include mixing a crosslinking agent with cellulose mat fiber fragments composed of hydrogen-bonded cellulose fibers and having a solids content of about 45-95% to form a substantially homogenous mixture of non-crosslinked, individualized cellulose fibers, drying the resulting mixture to 85-100% solids, then curing the dried mixture under conditions effective to crosslink the cellulose fibers. Some of such methods may include fragmenting a cellulose fiber mat to form the mat fragments. Systems include a mixing unit (such as a high-consistency mixer) configured to form, from the mat fragments and a crosslinking agent, a substantially homogenous mixture of non-crosslinked, individualized cellulose fibers and crosslinking agent, at ambient conditions, a drying unit to dry the substantially homogenous mixture to a consistency of 85-100%, and a curing unit and to cure the crosslinking agent to form dried and cured crosslinked cellulose fibers.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 24, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Charles E. Miller, Alan D. Lovas
  • Patent number: 11332883
    Abstract: Compositions including treated Kraft pulp, useful for making rayon fibers, having a lower degree of polymerization, a high R18, a low hemicellulose content, and high reactivity, are described. Methods of making the compositions are also described.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 17, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Mengkui Luo, Venketa Ranganathan Parthasarathy
  • Patent number: 11332886
    Abstract: The present technology is directed to fluff pulps with improved odor control as well as methods of making such fluff pulps. A fluff pulp is provided that includes a bleached kraft fiber and a copper ion content from about 0.2 ppm to about 50 ppm by weight of the bleached kraft fiber. The bleached kraft fiber includes a length-weighted average fiber length of at least about 2 mm, a copper number of less than about 7, a carboxyl content of more than about 3.5 meq/100 grams; an ISO brightness of at least 80; and a viscosity from about 2 cps to about 9 cps.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 17, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Peter M. Froass
  • Patent number: 11324851
    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: Grant
    Filed: May 25, 2018
    Date of Patent: May 10, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Mary Virginia Schoolfield, Hugh West
  • Patent number: 11318701
    Abstract: A forming device for gathering the width of a traveling web is disclosed. The forming device includes opposing arrays of flute-forming bars that can be interlaced to define therebetween a longitudinal flute-forming labyrinth effective to reduce the width of a web traveling therethrough by a preselected take-up ratio. The flute-forming bars are curved beginning at an entry end of the forming device such that they converge in a lateral direction as they proceed in the machine direction. In this manner, individual elements of the web traveling between the respective arrays in the machine direction follow contour lines along the curved bars or between adjacent ones of the curved bars so that no such element crosses any flute-forming bar in the cross-machine direction as the web travels and is fluted. A corrugating die for introducing a near-net shape to the intermediate-fluted web is also disclosed, as are a corrugating line incorporating these operations and methods for its operation.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 3, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Herbert B. Kohler
  • Patent number: 11292633
    Abstract: A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels connected to the bottom panel at opposing lateral edges, and first and second end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel connected to the bottom panel, an outer end panel connected to the inner end panel, and first and second corner panels, each corner panel having an edge connected to a respective one of the first and second side panels and having an edge connected to the inner end panel. First and second locking tabs are defined in the outer end panel, each locking tab being defined by a lateral separation line located longitudinally inward from an outer longitudinal edge of the outer end panel and extending laterally to define a free tab end.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 5, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Mark Anthony Wisecarver, James William Sloan, II, Kenneth Calvin Hyatt
  • Patent number: 11167875
    Abstract: A shipping container comprising first and second side panels, and first and second end panels connecting the first and second side panels. A pair of major upper flaps are foldably connected to respective side panels, the major upper flaps each forming half of a top panel. A pair of minor upper flaps are foldably connected to respective end panels, each of the minor upper flaps including a central tuck flap panel and a pair of gusset panels foldably connected to and overlapping the central tuck flap panel to form a tuck flap structure. Each tuck flap structure extending along an outer side of a respective end panel and including an end portion extending into an access port formed on the respective end panel.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: November 9, 2021
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Jeffrey A. Smith, Jack Lawrence Lane, Joel Gregory Wisehart Phillips
  • Publication number: 20210332044
    Abstract: Disclosed herein are synthesis methods for coelenterazine and intermediates. Also disclosed are articles including the coelenterazine and coelenterazine derivatives. Representative absorbent articles include disposable diapers and adult incontinence products.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 28, 2021
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: Rajagopala Reddy Duvvuru
  • Publication number: 20210246247
    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┬Ěsec, 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: April 27, 2021
    Publication date: August 12, 2021
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Karen Brogan, Charles E. Miller, Angel Stoyanov, Torsten Lindner, Maike Siemons
  • Patent number: 11078200
    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: Grant
    Filed: April 17, 2020
    Date of Patent: August 3, 2021
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Rajagopala Reddy Duvvuru
  • Publication number: 20210230804
    Abstract: A composition comprising 10 to 50 weight % wood pulp fiber, 45 to 85 weight % thermoplastic polymer and 0.1 to 5 weight % clear mineral oil having a specific gravity less than water. A composition comprising 65 to 85 wt % wood pulp fiber, 15 to 35 wt % thermoplastic polymer and 0.1 to 5 weight % mineral oil having a specific gravity less than water. The wood pulp fiber can be bleached chemical wood pulp fiber.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Applicant: International Paper Company
    Inventors: Jason M. Cernohous, Neil R. Granlund
  • Patent number: D925157
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 13, 2021
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Julio Cesar Mendoza Castro
  • Patent number: D931369
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 21, 2021
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Danielle Helms Graham, James Bradley Griffin
  • Patent number: D933472
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 19, 2021
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Julio Cesar Mendoza Castro
  • Patent number: D956553
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: July 5, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Alex Dean Bevier
  • Patent number: D957247
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: July 12, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventor: Alex Dean Bevier