Patents Assigned to International Paper Company
  • Patent number: 8753477
    Abstract: A process for making bleached pulp comprises contacting an unbleached pulp mixture with a first recycled filtrate obtained from a first location of a first recycled filtrate loop, to obtain a first pulp mixture having a first consistency; bleaching the pulp mixture, to obtain a first bleached pulp mixture; pressing or dewatering the bleached pulp mixture, to obtain a first pressed bleached pulp mixture and a second filtrate; sending a portion of the second filtrate to a second location of the first recycled filtrate loop, wherein the second location is downstream of and in fluid communication with the first location; contacting the pressed bleached pulp mixture with a second recycled filtrate obtained from a third location of the first recycled filtrate loop, to obtain a second pulp mixture having a second consistency, wherein the second consistency is greater than the first consistency, and wherein the third location is downstream of and in fluid communication with the second location; bleaching the second p
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 17, 2014
    Assignee: International Paper Company
    Inventor: Caifang F. Yin
  • Publication number: 20140130995
    Abstract: The present invention relates to a sizing or coating composition that, when applied to paper substrate, creates a substrate having improved waterfastness, surface strength, and surface strength as measured by resistance to abrasion. In addition, the present invention relates to paper substrates containing the composition, as well as methods of using and making the paper substrate and composition.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: MICHAEL F. KOENIG, KAPIL M. SINGH
  • Publication number: 20140117296
    Abstract: A system is mounted onto a forklift truck for covering and/or uncovering a cargo with a tarpaulin. The system comprises a tube frame assembly having a telescoping frame slidably attached to it. The telescoping frame is configured to be capable of being extendable and/or retractable within the tube frame assembly. The telescoping frame comprises a plurality of rollers configured to be capable of rotating when engaged with the plurality of flexible members and the flexible cover. A powertrain device is installed onto the tube frame assembly for causing to retract and/or to extend the telescoping frame within the tube frame assembly. A winch assembly is configured to be coupled to the tube frame assembly and having a plurality of straps engaged with the tarpaulin to cover and/or uncover the cargo.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Gaylon Bruce Shrader, Richard L. Spinks, Willie R. Hooper, James R. O'Neal
  • Publication number: 20140102654
    Abstract: A method for inhibiting deposition of multivalent saturated fatty acids on paper sizing equipment and/or devices which use a paper surface sizing composition containing higher starch solids levels of surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including (wholly or partially) one or more low fatty acid surface sizing starches in the paper surface sizing composition. Also, a paper surface sizing system for carrying out this method.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Michael F. Koenig, Ascencion L. Koenig, Ewa Gertruda Bucher
  • Publication number: 20140102655
    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: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: James E. Sealey, Michael Hevenor
  • Publication number: 20140102652
    Abstract: A paper substrate, particularly useful in wallboard tape applications containing PVOH on and/or in at least one surface of the paper, as well as methods of making and using the same. The use of the tape of the invention is used in conjunction with a joint compound that may contain no or, reduced amounts of bonding agent.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicant: International Paper Company
    Inventor: MARTHA P. WILD
  • Patent number: 8697203
    Abstract: A paper sizing composition is provided, which comprises a water-soluble salt of Ca(II) and at least one organic acid; and starch. Methods of making and using the composition, and methods of making and using the recording sheets which include the composition, are disclosed.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: April 15, 2014
    Assignee: International Paper Company
    Inventor: Michael F. Koenig
  • Patent number: 8690043
    Abstract: The present invention is directed to a reducible carton formed from a one-piece unitary blank of material. The reducible carton comprises a top wall, a bottom wall, opposite side walls, a front wall and a back wall. Means enabling the reducible carton to transversely separate it into a reusable rear carton component and a discardable front carton component. The reusable carton component comprises the back wall and a rear portion of each of the top wall, the bottom wall and the side walls, wherein the rear top wall portion, the rear bottom wall portion and the rear side wall portions in the reusable carton component each terminate in a forward edge defining an open forward end of the reusable carton component. The forward edge of one of the rear top wall portion or the rear bottom wall portion defines a seal flap that is foldable into closing relationship over the open forward end of the reusable carton component. The seal flap has a locking tab on a free edge thereof.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: April 8, 2014
    Assignee: International Paper Company
    Inventors: Frederick R. Holch, Nicholas A. Philips
  • Patent number: 8690047
    Abstract: A one-piece container formed from a single unitary blank of corrugated paperboard has a bottom wall, opposed side walls and inwardly inclined opposed end walls. Stacking tabs project upwardly from the end walls and tab locks in the bottom wall receive the stacking tabs of a subjacent container when the containers are stacked on top of one another. A reinforcing corner post extends the full height of the container in each corner. The corner posts are formed by panels extending from opposite ends of the end walls, wherein the panels include a first panel foldably joined to an end of an associated end wall and adhered to an adjacent side wall, a second panel foldably joined to the first panel and extending diagonally across the corner, and a third panel foldably joined to the second panel and adhered to an adjacent side wall.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 8, 2014
    Assignee: International Paper Company
    Inventors: David J. McKenna, David J. Kent, Herbert D Muise, Jr., Stanley Lee Fry
  • Publication number: 20140091490
    Abstract: A process for thermoforming a discrete section of an amorphous pliable thermoplastic sheet in a temperature-controlled thermoforming mold to provide a discrete thermoformed section having one or more discrete shaped articles formed therein and to heat the shaped articles to a temperature below the Tm but above the Tg of the polylactic acid polymer in the sheet to induce crystallization of the polylactic acid polymer in the shaped articles. While unconstrained by the thermoforming mold, the discrete thermoformed section is tempered at a temperature such that the polylactic acid polymer in the shaped articles achieves a degree of crystallization of at least about 5% (as measured by X-ray diffraction) to thereby increase heat resistance of the shaped articles.
    Type: Application
    Filed: October 3, 2012
    Publication date: April 3, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Richard A. Tedford, Ganesan Kumar, Thomas Christie
  • Patent number: 8685206
    Abstract: A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 1, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8686301
    Abstract: A vehicle weighing system for counting the number of vehicle axles before and after weighing of an unloaded vehicle to determine if the unloaded vehicle is correctly positioned during weighing, as well as method for generating a scale ticket to record vehicle axle count data from the vehicle weighing system. Also, a scale ticket data system with a plurality of such scale tickets and a scale ticket electronic database which collects the scale tickets and identifies those scale tickets corresponding to unloaded and weighed vehicles which are correctly or incorrectly positioned during weighing, as well as a method for querying the scale ticket electronic database to identify those scale tickets corresponding to unloaded and weighed vehicles which are correctly or incorrectly positioned during weighing.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: April 1, 2014
    Assignee: International Paper Company
    Inventor: Calvin S. Sasser
  • Patent number: 8679294
    Abstract: Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: March 25, 2014
    Assignee: International Paper Company
    Inventors: Yaoliang Hong, Kosaraju Krishna Mohan, Victoria Laurentia Dimonie, Mark Edward Fagan, Andrew Klein, Eric Scott Daniels, Brian Boyars, Peter M. Froass, Christopher D. Anderson, Edward David Sudol
  • Publication number: 20140061080
    Abstract: A carton has hand holes in opposite walls and a spacer panel inserted between stacked articles in the carton. The spacer panel has cut outs in its opposite ends positioned behind the hand holes to provide space for inserting the fingers. The hand holes and spacer panel facilitate lifting, carrying and manipulating the carton. The spacer panel has width and length dimensions to fit within the interior width and length dimensions of the carton and reinforces the carton to reduce damage when the carton is dropped.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: RICHARD D. FABER, KENNETH BUSS, ALEX D. BEVIER, BRIAN K. JAMBOIS, ADAM P. ROBERTS
  • Publication number: 20140061289
    Abstract: A one-piece container formed from a single unitary blank of corrugated paperboard has a bottom wall, opposed side walls and inwardly inclined opposed end walls. Stacking tabs project upwardly from the end walls and tab locks in the bottom wall receive the stacking tabs of a subjacent container when the containers are stacked on top of one another. A reinforcing corner post extends the full height of the container in each corner. The corner posts are formed by panels extending from opposite ends of the end walls, wherein the panels include a first panel foldably joined to an end of an associated end wall and adhered to an adjacent side wall, a second panel foldably joined to the first panel and extending diagonally across the corner, and a third panel foldably joined to the second panel and adhered to an adjacent side wall.
    Type: Application
    Filed: March 23, 2012
    Publication date: March 6, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: David J. McKenna, David J. Kent, Herbert D. Muise, JR., Stanley Lee Fry
  • Patent number: 8663427
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 4, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8651277
    Abstract: An article-transport tray includes a floor and a side wall which cooperate to form an article-storage space sized to carry a wide variety of items, articles, or products.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 18, 2014
    Assignee: International Paper Company
    Inventors: Michael Bruce McLeod, Jon Richard Thomas Schoenborn
  • Patent number: 8652593
    Abstract: An article in the form of a paper substrate having a first surface and a second surface; an internal paper sizing agent present in an amount sufficient to impart to the paper substrate an HST value of from about 50 to about 250 seconds; one or more optical brightening agents present in an amount below a “green over” effect excess but sufficient to impart an ISO Brightness value of at least about 92; and a metal salt drying agent mixture of multivalent and monovalent metal drying salts in a molar ratio of multivalent to monovalent cations of from about 3:1 to about 1:18 to provide a percent ink transferred (“IT %”) value equal to or less than about 65% and a black print density value of at least about 1.45. Also, a method for treating the optically brightened paper substrate with a mixture of multivalent and monovalent metal drying salts.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: February 18, 2014
    Assignee: International Paper Company
    Inventor: Michael F. Koenig
  • Patent number: 8652594
    Abstract: A recording sheet is provided, which comprises: a paper substrate comprising a plurality of cellulosic fibers; and a sizing agent comprising a water soluble divalent metal salt; wherein the paper substrate and sizing agent cooperate to form an I-beam structure. Methods of making and using the recording sheet are also provided.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: February 18, 2014
    Assignee: International Paper Company
    Inventors: Michael F. Koenig, Jacob P. John, Thomas R. Arnson, Benjamin T. Liguzinski
  • Publication number: 20140041817
    Abstract: A fluff pulp is provided, which comprises softwood fibers; and 3 to 35% by weight of hardwood fibers. A fluff is also provided, which comprises the fiberized or shredded fluff pulp. A core is also provided, which comprises the fluff and at least an SAP. Processes for making and using the fluff pulp, fluff, and core are provided, and products made thereby.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: JAMES E. SEALEY, BRENT A. FIELDS