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INTERNATIONAL PAPER COMPANY

INTERNATIONAL PAPER COMPANY Patent applications
Patent application numberTitlePublished
20120132562Shipping And Display Container With Removable Panel - A shipping container convertible into a display container comprises a case having sidewalls, a closed bottom, and an open top. A separate cover is secured to and closes the open top. The cover comprises a lid panel coextensive in length and width with the open top. A flange depending from each of the side edges of the lid panel and attached to upper outer surfaces of the case sidewalls to secure the cover to the case. A detachable display panel is formed in the lid panel. A detachable protective panel is foldably attached to one side edge of the lid panel by weakened tear lines. The protective panel is attached to the display panel, whereby removal of the protective panel carries with it and removes the display panel to form a display opening in the lid panel for display of and access to product contained in the container.05-31-2012
20120127509Activation Code Provided with Discrete Increment of Paper Substrate for Activating Remotely Accessible Printer Controller Software - A system which has an electronic database for entry of an activation code provided with a discrete increment of a printable paper substrate and printer controller software for use with the printable paper substrate which is remotely accessible and which is activated after entry by a user of the activation code into the electronic database. Also, a method for providing the discrete increment of the printable paper substrate to the user, wherein the discrete increment is provided with the activation code which the user enters into the electronic database to activate code to activate the remotely accessible printer controller software for use with the printable paper substrate, as well as a product including the discrete increment of the printable paper substrate along with the activation code to permit the user to activate the remotely accessible printer controller software.05-24-2012
20120121872Paper sizing composition with salt of calcium (II) and organic acid, products made thereby, method of using, and method of making - 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.05-17-2012
20120114917Packaging Material Having Moisture Barrier And Methods For Preparing Same - An article in the form of a packaging material having a water vapor transportation rate of about 500 g/m05-10-2012
20120114916Packaging Material Having Moisture Barrier And Methods For Preparing Same - An article in the form of recyclable packaging material having a water vapor transportation rate of about 500 g/m05-10-2012
20120111763INSERT FOR FOILED FOOD TUBS AND THE LIKE - The present invention relates to a stackable packaging insert for storing and transporting articles, such as foiled food tubs. The insert is formed from a blank that can be folded into a tray-like packaging insert with individual compartments. Each compartment has a base and support tabs. Between adjacent bases, the support tabs meet at a triangular connector. When positioned within a container, the support tab ends and triangular connectors rest against the interior walls of the container. Articles within the positioned insert are suspended on the support tabs and triangular connectors.05-10-2012
20120104083Reinforced Cross-Laminated Bulk Container - A reinforced cross laminated corrugated paperboard bulk container has an outer component and an inner liner laminated to the outer component with the liner having corrugations extending perpendicular to the corrugations in the outer component. The bottom edges of the sidewalls include a first pair of flaps and a second pair of flaps each of which foldably extend outwardly therefrom and wherein each of the second pair of flaps having a pair of spaced apart triangularly shaped slots formed therein and wherein each of the first pair of flaps includes a pair of locking tabs formed on opposed end of the respective first pair of flaps which are engaged with the slots on the second pair of the flaps to securely close the bottom of the container. Vertical scores in the liner are pre-broken prior to laminating it to the outer component.05-03-2012
20120097602BIODEGRADABLE OR COMPOSTABLE BEVERAGE FILTER CARTRIDGE - A biodegradable beverage filter cartridge having: a biodegradable fluid permeable beverage filter component; an openable lid component of biodegradable and/or recyclable material; and a beverage receptacle component composed of an exterior biodegradable heat-resistant structural polymer layer, an inner protective seal layer of biodegradable polymer, and an intermediate biodegradable and/or recyclable oxygen barrier layer between the exterior and inner layers and provided with a pierceable and/or a liquid permeable base portion and a sidewall portion extending generally upwardly from the base portion for securing the lid component to the beverage receptacle component and defining a beverage filter component receptacle area for receiving the beverage filter component. The cartridge may optionally include beverage material positioned within a beverage material receiving area of the beverage filter component.04-26-2012
20120082846PAPER SIZING COMPOSITION, SIZED PAPER, AND METHOD FOR SIZING PAPER - Embodiments of the present invention provide a paper surface sizing composition, a paper web coated on one or more sides or surfaces with a paper surface sizing composition, and a method for treating one or more sides of the paper web with a paper surface sizing composition to impart benefits relating to one or more of the following properties: (04-05-2012
20120080426FRAME FACE DISPLAY AND SHIPPING CONTAINER - The present invention is directed to an open-top container for shipping and displaying products which comprises a plurality of side walls. Bottom wall flaps are foldably joined to bottom edges of the side walls and are folded inwardly therefrom into overlapping relationship with one another to form a bottom wall closure. A respective plurality of triangularly-shaped beams foldably joined to upper edges of the respective plurality of side walls. Each of the plurality of the triangularly-shaped beams is defined by a shoulder panel and a flange panel foldably joined to one another. A bumper sticker panel is foldably joined to upper edge of one of the plurality of side walls forming a partial top closure when the open-top container is in the shipping position and partially prevents products from falling out when the open-top container is in the displaying position.04-05-2012
20120040200Recording sheet with improved image waterfastness, surface strength, and runnability - 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.02-16-2012
20120019587Coated printable substrates providing higher print quality and resolution at lower ink usage - An article in the form of a paper substrate having a water-swellable substrate coating on at least one of the first and second surfaces at a thickness of less than about 10 microns and. The substrate coating has an amount of a coating pigment sufficient to impart a Parker Print Smoothness value of at least about 4 to the at least one surface and is dispersed in a water-swellable coating pigment binder matrix in a coating pigment to binder matrix weight ratio of at least about 2:1. The coating pigment has larger porous coating pigment particles, and smaller coating pigment particles in a weight ratio of at least about 0.2:1. The substrate coating provides an ink-receptive porous surface. Also, a method for preparing such coated paper substrates, as well as a method for printing an image on the coated paper substrate with an inkjet printer using a lower ink usage level.01-26-2012
20120018348SHIPPING AND DISPLAY TRAY WITH ARTICLE SUPPORT - The present invention is directed to a shipping and display tray for holding a plurality of articles contained therein in an upright position at a point of sale. The shipping and display tray is made of paperboard and defined by a one-piece shallow tray having a bottom wall, a front wall, a back wall, and opposite side walls foldably joined with one another. A plurality of parallel spaced apart bumpers are foldably joined to the respective opposite side walls and forming two rows, an aisle, and a plurality of channels when positioned on the bottom wall. The plurality of the channels engages with bottom edges of the plurality of articles to hold the article in standing upright position and prevent the articles from falling over when one of the articles is removed from the display tray. The front wall of the tray includes a flap panel foldably joined thereto and has a pair of openings used to engage with the bumpers.01-26-2012
20120018110FIBER ADDITIVE MADE FROM NON-WOODY MATERIAL AND METHOD OF PRODUCTION AND USE - A fibrillated fiber additive product and a process for making such fiber additives comprising the steps of providing a non-woody plant material, screening such material and subjecting the treated non-woody material to a refining step, such as through a disc refiner, to form a fibrillated fiber additive. Such refined non-woody fiber additive can be used to replace a portion of wood fiber, either virgin or recycled, in a paper product.01-26-2012
20120018109White Tinting File Folder - A paper having thereon a coating composition including at least one pigment and at least one starch is provided. The pigment and the starch may be added to the surface of the paper at a size press during the formation of the paper in a ratio of at least 1:1. Papers coated with the coating composition have an enhanced surface ink density in a subsequent printing or tinting process at an ink usage that is equal or substantially equal to that used to tint conventional, uncoated papers. Accordingly, a paper coated with the coating composition requires the utilization of a lesser amount of ink than that required for conventional file folders to achieve the desired end color. In addition, the coating composition permits for an enhancement in print and/or tint quality if a reduction in ink use is not utilized. A method of forming a file folder is also provided.01-26-2012
20120017808Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using - A fluff pulp or other pulp, comprises a multivalent cationic metal ion selected from the group consisting of Al01-26-2012
20120012265Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability - This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.01-19-2012
20120003490SURFACE TREATMENT OF SUBSTRATE OR PAPER/PAPERBOARD PRODUCTS USING OPTICAL BRIGHTNENING AGENT - The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises the step of spraying an aqueous composition comprising an optical brightening agent onto at least one surface of a sized paperboard substrate to form a treated paperboard substrate. The treated paperboard substrate includes a layer of OBA on at least one surface of the paper or paperboard substrate in which the brightness of the treated paper or paperboard substrate is greater than the sized paper or paperboard substrate before treating thereof.01-05-2012
20110315331PROCESS FOR MANUFACTURING PULP, PAPER AND PAPERBOARD PRODUCTS - A process for bleaching mechanical wood pulp is provided comprising subjecting the wood pulp to at least one bleaching stage with one or more bleaching agents in the presence of one or more optical brightening agent, wherein the bleaching agents are selected from the group consisting of oxidative bleaching agents other than chlorine based bleaching agents such as chlorine dioxide, elemental chlorine or a combination thereof, reductive bleaching agents or any combination of two or more thereof.12-29-2011
20110308993COLLAPSIBLE BULK BIN CONTAINER - A collapsible shipping container is capable of configured from a collapsed position for storage and transportation to a constructed position for containment of articles therein and back again to the collapsed position after use. The collapsible shipping container comprises a foldable tray having at least two pallet runner sleeves spaced apart from one another and each of which being formed on respective opposed lateral edges of the foldable tray. A plurality of elongated pallet runners each of which having an inner support structure integrally formed thereto. The plurality of elongated pallet runners each of which is adapted to be inserted into each of the respective plurality of pallet runner sleeves. A foldable side wall body is adapted to rest upon the foldable tray to form an interior space to receive a plurality of articles. The foldable side wall body comprises end walls, side walls, and side body flaps to form an enclosed bottom thereof. Each of the end walls includes an articulation fold formed therein so that during the collapsed position, the articulation folds move toward the interior space and during the constructed position, the articulation folds move away from the interior space. A lid is configured to telescopically enclosing the collapsible shipping container.12-22-2011
20110297561EASY-OPENING CARTON FOR SHIPPING AND STORING CUT PAPER - An easy to carry lightweight carton for shipping and storing cut paper and for providing rapid and easy access to the paper when the carton is opened. The carton has a base portion and a lid pivotally attached to the base portion. A front wall of the carton may be pivoted down when the lid is pivoted up to facilitate access to the contents of the carton for ease of unloading of paper from the carton. A carry handle is built into the base portion to facilitate carrying of the carton. The carry handle position causes the center of gravity of the carton to be closer to a user's body when carrying the carton. The carton may be re-closed after it is opened.12-08-2011
20110287275LIGNO CELLULOSIC MATERIALS AND THE PRODUCTS MADE THEREFROM - A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.11-24-2011
20110278192Display Package - A theft deterrent display package for at least one article comprises a product cradle having an interior space with a perimeter. A peripheral flange extends outwardly from the perimeter of the interior space. A locking slot is configured along the perimeter of the interior space. At least one self-standing leg extends downwardly from the interior space upon which the display package stands alone. A backboard is defined by a front face and a back face. A locking tab comprises a free end extends outwardly from one edge of the back face. The locking tab includes two angled fold lines used in assisting the free end of the locking tab to be inserted into the locking slot to securely enclose the display package.11-17-2011
20110277949Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same - This invention relates to composition containing expandable microspheres and at least one ionic compound and having a zeta potential that is greater than or equal to zero mV at a pH of about 9.0 or less at an ionic strength of from 1011-17-2011
20110274856Coated Printable Substrates Resistant to Acidic Highlighters and Printing Solutions - An article in the form of a paper substrate having a first surface and a second surface and an acid-resistant water-swellable substrate coating which provides an ink-receptive porous surface on at least one of the first and second surfaces. The substrate coating has an amount of an acid-resistant coating pigment sufficient to impart a Parker Print Smoothness value of at least about 4 to the at least one of the first and second surfaces and is dispersed in an acid-resistant water-swellable crosslinked polymer coating pigment binder matrix, with the coating pigment having from about 30 to 100% larger coating pigment particles with a mean particle size above about 1 micron in diameter. Also, a method for preparing such coated paper substrates.11-10-2011
20110265964Process in a (D) stage bleaching of softwood pulps in a presence of Mg(OH)2 - This invention relates to an improved bleaching process for bleaching pulp comprising at least one bleaching stage which comprises treating a softwood pulp with a bleaching agent comprising ClO2 in the presence of a weak base such as, for example, Mg(OH)11-03-2011
20110263759INK EXTENDERS AND INKS UTILIZING ORGANIC BASED RESINS - An extender for flexographic and other ink compositions and inks using such extender where potato starch serves as the ink carrier and an emulsion resin. The use of potato starch provides for a readily available, cost effective, substantial and environmentally friendly alternative to petroleum and soy based resins.10-27-2011
20110259899Hammer-Lock Container - A container formed from a one-piece unitary blank of material, comprises a bottom wall foldably joined to upstanding opposed parallel side walls, a back wall, and a front wall. A top wall is foldably joined to the back wall. The bottom wall comprises at least first and second slots each of which formed on opposed lateral edges in proximity of the front wall. A first shoulder panel is foldably joined to longitudinal edge of the front wall. The first shoulder panel includes respective first and second hammer-lock flaps each of which foldably joined from opposed lateral edges. Each of the respective first and second hammer-lock flaps includes respective first and second locking tabs extends outwardly from respective free edges and is inserted into the corresponding first and second slots on the bottom wall.10-27-2011
20110253772REDUCIBLE CARTON WITH LOCKING AND RECLOSURE FEATURES - 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. The forward edge of the other of the rear top wall portion or the rear bottom wall portion includes a recess therein for frictionally receiving the locking tab to lock the seal flap in closed position.10-20-2011
20110248080Reinforced Cross-Laminated Bulk Container - A reinforced cross laminated corrugated paperboard bulk container has an outer component with corrugations running in a first direction, and an inner liner laminated to the outer component, with the liner having corrugations extending perpendicular to the corrugations in the outer component. Reinforcing strands are in both the liner and the outer component, extending perpendicular to the respective corrugations thereof. Interlocking top flanges are on the top edges of the outer component, and interlocking bottom flanges are on the bottom edges thereof. The interlocking bottom flanges include a chevron shaped locking slot in one flange and a locking tab on an opposed bottom flange. Folds extend across the bottom flanges to enable them to deflect and slide relative to one another during set up of the container. Vertical scores in the liner are pre-broken prior to laminating it to the outer component.10-13-2011
20110240242METHOD AND SYSTEM USING LOW FATTY ACID STARCHES IN PAPER SIZING COMPOSITION TO INHIBIT DEPOSITION OF MULTIVALENT FATTY ACID SALTS - 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.10-06-2011
20110240241METHOD AND SYSTEM USING SURFACTANTS IN PAPER SIZING COMPOSITION TO INHIBIT DEPOSITION OF MULTIVALENT FATTY ACID SALTS - 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 one or more surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including a C10-06-2011
20110240238Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base - This invention relates to an improved bleaching process for bleaching pulp comprising at least one bleaching stage which comprises treating a hardwood pulp with a bleaching agent comprising ClO2 in the presence of a weak base such as, for example, Mg(OH)10-06-2011
20110232853BCTMP Filtrate Recycling System and Method - A process for making bleached pulp comprises contacting an unbleached pulp mixture with a first recycled filtrate obtained from a first location (09-29-2011
20110226649PALLET SKIRT - A pallet skirt for covering a stack of pallets on which product is supported and displayed. The skirt has a shipping configuration wherein the perimeter and height of the skirt are approximately the same as the perimeter and height of the product, and a display configuration in which the perimeter and height of the skirt are expanded to cover the stack of pallets. Pleated folds in two corners of the skirt enable its perimeter to be contracted for the shipping configuration and expanded for the display configuration. A horizontal score in the side walls enables the side walls to be folded to reduce the height of the skirt for the shipping configuration and to be unfolded for the display configuration. A horizontal flange on the top edge of the skirt covers the marginal edge of a pallet on which the product is supported during display.09-22-2011
20110214826PROCESS OF TREATING A LIGNOCELLULOSIC MATERIAL - A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. In one embodiment, the pre-extraction step involves contacting the lignocellulosic material with an aqueous solution under conditions that release acidic material from the lignocellulosic material into the aqueous solution, and the aqueous solution includes a basic material that at least partly neutralizes the acidic material so that the aqueous solution at the end of the pre-extraction step has a pH within a range of from 4.5 to 11. The process also includes a pulping step, after the pre-extraction step, in which the lignocellulosic material is separated into pulp. The process further includes an adsorption step, after the pulping step, in which hemicellulose is adsorbed on the pulp.09-08-2011
20110155627SHIPPING AND DISPLAY CONTAINER WITH ARTICLE SUPPORT - A one-piece tray for shipping and then displaying articles in an upright position at a point of sale has a bottom wall, a front wall, a back wall, and opposite side walls and is made of corrugated board having a bottom liner, a top liner, and a fluted medium. A plurality of grooves extend across the width of the bottom wall in a top surface thereof to engage bottom edges of articles standing upright in the tray and hold them in position as other articles are removed from the front of the tray. The grooves are formed by cuts made through the top liner and a portion of the medium and crushed areas extending along one side of each cut, forming a rearwardly facing abutment at each cut for engaging bottom edges of articles to prevent the bottom edges from sliding forward in the tray.06-30-2011
20110155335USE OF POLYSULFIDE IN MODIFIED COOKING - A method for Kraft pulping employing a modified cooking process in conjunction with polysulfide pulping technologies to obtain higher pulping yields than obtained in the prior art. The total required alkali charge (polysulfide liquor) is added to the beginning of a cook, and after all polysulfide has essentially reacted with lignocellulosic material at temperature below that at which no significant carbohydrate degradation occurs, a first quantity of the cooking liquor high in effective alkali (EA) concentration is removed from a first point in the pulping process and replaced with a cooking liquor low in EA concentration removed from another process point. The first quantity is then added elsewhere in the pulping process, where the EA concentration is low. This cooking liquor “exchange” obtains the full yield benefit from polysulfide pulping and a more uniform EA concentration profile to retain the major benefits of modified cooking.06-30-2011
20110151149Printable Substrates with Improved Brightness from OBAs in Presence of Multivalent Metal Salts - 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.06-23-2011
20110151148Printable Substrates with Improved Dry Time and Acceptable Print Density by Using Monovalent Salts - 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; and a metal salt drying agent having at least about 20% by weight of one or more monovalent metal drying salts, wherein the metal salt drying agent is present on at least one of the first and second surfaces in an amount sufficient to provide a percent ink transferred (“IT %”) value equal to or less than about 65% and to provide a black print density value of at least about 1.45. Also, a method for treating the internally sized paper substrate having the HST value of from about 50 to about 250 seconds with the metal salt drying agent.06-23-2011
20110146928PAPERS FOR LIQUID ELECTROPHOTOGRAPHIC PRINTING AND METHOD FOR MAKING SAME - The specification discloses papers suitable for liquid electrophotographic printing (“LEP”) and a method for making such papers. According to the method, a papermaking furnish containing cellulosic fibers is formed into a fibrous web on a papermaking machine and at least partially dried. The web is then treated with a sizing composition comprising starch, an acrylic acid polymer, an organic material having an HLB value of from about 2 to about 14 such as a polyglycerol ester, and water. The treated web is dried and calendered to a final desired caliper. Since the sizing composition is an aqueous mixture, it may be applied to the web on-line during production of the paper on the papermaking machine, thereby avoiding the expense and inconvenience of conventional off-line methods used to make existing LEP papers. The resulting paper exhibits at least 80% and preferably above 90% toner adhesion as measured by the tape pull tests used for the assessment of papers printed by LEP.06-23-2011
20110138753Container with Repulpable Moisture Resistant Barrier - This present invention is directed to a container adapted to hold and store moisture sensitive material such as for example, paper or electronic device. The container comprises a top wall, a bottom wall, and a plurality of side walls. Each of the top wall, bottom wall, and a plurality of side walls comprise a corrugated linerboard having an inner surface and an outer surface. At least one of the top wall, bottom wall, and side walls further comprises a coating applied to the linerboard. The coating is positioned at an inner surface of the linerboard to form a coated corrugated linerboard that is a moisture-resistant and resists penetration of water, water vapor or moisture into the container from ambient atmosphere thereby increasing the strength and shelf-life of the container under conditions of cyclic changes in ambient temperature and in ambient humidity. The coating has a coat weight from 1-10 wet #'s total per MSF (thousand square feet).06-16-2011
20110136978THERMOFORMED ARTICLE MADE FROM POLYBUTYLENE SUCCINATE (PBS) AND MODIFIED POLYBUTYLENE SUCCINATE (MPBS) - The present invention relates to articles made of a thermoformable resin comprising a biodegradable polymer having polybutylene succinate (PBS) via extrusion using an extruder which comprise: a biodegradable polymer having: (a) a T06-09-2011
20110135863THERMOFORMED ARTICLES MADE FROM REACTIVE EXTRUSION PRODUCTS OF BIOBASED MATERIALS - The present invention is directed to a method of producing a themoformable composite by crosslinking PHA and PLA together in the presence of an additive to produce PHA and PLA blend and resins having: (a) a T06-09-2011
20110127318INTERLEAVED SPINE CONTAINER - The present invention is directed to a container having a bottom wall, first and second opposite sidewalls, opposite end walls, a top wall. An integral interior partition is dividing the container into two side-by-side compartments each adapted for holding a respective article. The container and partition are made from a single unitary blank cut and folded to form the container and partition. The partition comprises the first and second panels of the first and second sets of panels that are interleaved with one another at inner end edges thereof and the partition is three panels thick over a center portion thereof and two panels thick over the remainder thereof.06-02-2011
20110108227Process For Applying Composition Containing A Cationic Trivalent Metal And Debonder And Fluff Pulp Sheet Made From Same - 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.05-12-2011
20110108225PAPER SUBSTRATES USEFUL IN WALLBOARD TAPE APPLICATIONS - This invention relates to paper products and/or substrates suitable for being made and/or converted into wallboard tape; which also may be known as joint tape and/or drywall tape, having a pH of at least 7.0 and containing a plurality of cellulose fibers, a wet strength additive, an alkaline sizing agent, and an anionic promoter, as well as methods of making and using the same.05-12-2011
20110108222EFFECT OF LOW DOSE XYLANASE ON PULP IN PREBLEACH TREATMENT PROCESS - A prebleach treatment of pulp with xylanase enzyme prior to chemical bleaching is disclosed. A process of making pulp comprises treating a pulp with xylanase in an amount of less than 50 g of xylanase per ton of pulp. The treating step is carried while buffering the pulp and xylanase with a buffering agent to a pH of from about 6.5 to about 7.5 prior to at least one bleaching stage to form a treated pulp.05-12-2011
20110097520WATERFAST DYE FIXATIVE COMPOSITIONS FOR INK JET RECORDING SHEETS - A coating composition comprising a blend of at least two dye fixatives, at least one of which is a cationic polymer, and at least one of the other dye fixatives is a polyvalent metal salt, to form a water-insoluble complex. The ink recording sheets comprise a composition that is absorbed into the surface of the substrate as a sizing material, or alternatively, forms a continuous layer on the substrate. The present invention also encompasses methods for making the ink jet recording sheets.04-28-2011
20110069106GLOSS COATED MULTIFUNCTIONAL PRINTING PAPER - The invention relates to a gloss coated multifunctional printing paper that can be used with a variety of office printing equipment including inkjet and electrophotographic and to processes of making and using the paper. a paper substrate; and a pigmented composition coated on at least one surface of the substrate, said pigmented coating composition comprising (1) a first pigment having a BET surface area in the range of from about 50 to about 750 m03-24-2011
20110056639PAPER ARTICLES EXHIBITING LONG TERM STORAGEABILITY AND METHOD FOR MAKING SAME - A method for increasing the long term storageability of a cellulosic paper or paperboard product. The method includes providing a paper or paperboard product made from cellulosic fibers having a basis weight ranging from about 80 to about 300 pounds per 3000 square feet. A holdout material is applied to at least one surface of the paper or paperboard product. The web is then coated with an ink receptive material selected from the group consisting of an aqueous acrylic polymer coating material, an aqueous biocidal agent and a combination of aqueous acrylic polymer coating material and aqueous biocidal agent and dried to provide a paper or paperboard product having enhanced long term storageability. Webs made according to the invention are suitable for making file folders which exhibit improve long term storageability by resisting damage from moisture and/or biological activity.03-10-2011
20110036526CUT RESISTANT PAPER AND PAPER ARTICLES AND METHOD FOR MAKING SAME - The specification discloses a method for making a paper material having a reduced tendency to cut human skin. The method includes providing a papermaking furnish containing cellulosic fibers and from about 0.5 to about 5.0 wt % by weight dry basis expandable microspheres, forming a paperboard web from the papermaking furnish, drying the web, and calendaring the web to a caliper of from about 11.0 to about 18.0 mils and a density ranging from about 7.0 to about 12.0 lb/3000 ft02-17-2011
20110034891Dry Fluff Pulp Sheet Additive - A process is provided for making a fluff pulp sheet, comprising forming a web comprising fluff pulp fibers; and applying at least one debonder surfactant to 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 debonder surfactant; and a fiberization energy of <145 kJ/kg. Products and uses of the fluff pulp sheet are also provided.02-10-2011
20110032551SYSTEM, METHOD AND SOFTWARE FOR REDUCING PRINTER COLORANT USAGE - A system, method, and printer controller software for reducing printer colorant usage by using printer controller software which controls the deposition by the printer of the printer colorant on the printable medium in response to selected print image quality and printer colorant reduction criteria, as well as identifying printer colorant deposition characteristics of the printable medium, identifying characteristics of the printer, and identifying characteristics of the printer colorant.02-10-2011
20110031304Multi-Product Container and Container Blank - The present invention is directed to a multi-product container and container blank. In accordance with the present invention, a single sheet of foldable material is cut and scored to define a container blank. The blank includes a bottom panel, a front panel, a back panel, opposed side panels and a plurality of corner panels. Also, a top panel is attached to the back panel opposite said bottom panel. A fold over cup panel is attached to the front panel opposite the bottom panel. The cup panel does not include additional panels or tabs opposite the front panel. An optional cup receptacle is formed in the cup panel. As fanned, the front panel, back panel opposed side panels and plurality of corner panels are hingedly attached to said bottom panel via unperforated score lines.02-10-2011
20110030908Composition Containing A Cationic Trivalent Metal And Debonder And Methods Of Making And Using The Same To Enhance Fluff Pulp Quality - 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.02-10-2011
20110024067Anti-Microbial Paper Substrates Useful in Wallboard Tape Applications - This invention relates to paper products and/or substrates suitable for being made into wallboard tape (also may be known as joint tape and/or drywall tape) and having improved reduction or inhibition in the growth of microbes, mold and/or fungus. The paper substrate is characterized by its excellent physical properties including cross direction (CD) tensile, machine (MD) tensile, internal bond, wet tensile, hygroexpansivity, curl, bonding properties, bonding of joint tape to joint compound, etc. The paper product of the invention contains a sizing agent and an antimicrobial compound as well as other optional components including without limitation a binder. The paper product of the invention may be produced by contacting the plurality of cellulose fibers with each of the sizing agent, antimicrobial compound, and optional components at any point in the papermaking process, converting process, and/or post-converting process. Finally, the invention relates to methods of using the paper substrate.02-03-2011
20110011547PAPER SUBSTRATE HAVING ENHANCED PRINT DENSITY - 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.01-20-2011
20100308053BULK CONTAINER FOR LIQUID AND SEMI-LIQUID FLUID - A bulk container for fluid materials comprises a bin having a plurality of interconnected sidewall panels, a closed bottom, and an open top. A rim around the top of the bin defines a downwardly facing shoulder. A lid covers the open top and has elongated depending skirt panels extending downwardly past the shoulder. A clamping band is tightened around the lid skirt below the shoulder to secure the lid to the bin. Notches in an outer surface of the rim receive bendable locking strips on the lid skirt to lock the lid in position on the bin, and locking tongues on a first skirt panel are engageable in respective locking slots in an adjacent second skirt panel to hold the skirt panels in their operative downwardly folded positions. A tray and liner insert may be positioned in the bin, and a fluid-containing bag may be placed in the liner.12-09-2010
20100301108BULK SHIPPING CONTAINER - A bulk shipping and storage container in the form of a drum is made of corrugated fiberboard and includes a bin with a sidewall, a closed bottom and an open top. The sidewall has a plurality of interconnected sidewall panels, and a rim is on an upper outer surface of the sidewall for engagement by the tines of a forklift to carry the container. The locking structure on the lid and bin enable the lid to be locked in place. The bottom of the container has adhesively attached overlapping panels that provide smooth interior and exterior surfaces. A preferred embodiment has a tray inserted in the bottom and a liner inserted in the tray and extending upwardly inside the sidewall. In another embodiment, a shock-absorbing pad is between the liner and the lid.12-02-2010
20100301106BULK CONTAINER FOR LIQUID AND SEMI-LIQUID FLUID - A bulk container for storing, shipping and dispensing liquid and semi-liquid fluids comprises a bin having a sidewall, a closed bottom, and an open top. The sidewall comprises a plurality of interconnected sidewall panels extending at an angle with respect to one another. A lid is covering the open top of the bin and having a discharge opening therethrough adjacent one side edge thereof. A fluid-containing bag is supported in the bin and a discharge valve is on an upper end of the bag where the discharge valve is positioned to extend through the discharge opening. Valve support means in an upper end of the bin for supporting and holding the discharge valve in position to extend through the discharge opening, the valve support means having a valve support opening therethrough with an elongate generally keyhole shape that is wide at one end and narrow at the other end, the narrow end being aligned with the discharge opening through the lid, the discharge valve being received through the narrow end of the valve support opening, and locking means engaged with the discharge valve to hold it in the narrow end of the valve support opening.12-02-2010
20100276095PAPER SUBSTRATES CONTAINING HIGH SURFACE SIZING AND LOW INTERNAL SIZING AND HAVING HIGH DIMENSIONAL STABILITY - This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.11-04-2010
20100269992SULFONATION OF PULP PRODUCED BY ALKALI PULPING PROCESS - This invention relates to the delignification of lignocellulosic pulp. More particularly, the invention relates to sulfonation and bleaching of the alkali pulping produced by Kraft pulp processes or produced through combination of alkali pulping processes and extended delignification stages.10-28-2010
20100252213PULP AND PAPER HAVING INCREASED BRIGHTNESS - The present invention relates to a method of increasing the brightness of pulp, pulp made from such methods and methods of using such pulp.10-07-2010
20100200647EMBOSSED PAPERBOARD CUP HOLDER - A paperboard cup holder for use with a hot coffee cup, the cup being tapered as in the form of a cross section of a right circular cone of relatively small taper angle. Such cups are generally of paperboard or plastic and are often used in vending machines and fast food retail outlets for serving hot coffee. The holder is formed from a flat, generally arcuate unitary paperboard blank having a convex outer edge and a concave inner edge. The arcuate length of the blank is substantially the same as the mid circumference of the cup, and the ends of the blank are glued together to form an annular holder. The upper edge of the blank integrally carries a plurality of flaps which bend 180 degrees to as to lie parallel with the main portion of the blank. The inter and outer surfaces of the paperboard blank are embossed, including the flaps. When the holder is slid onto a cup, the flaps are sandwiched between the outer (hot) surface of the cup and the main portion of the holder. The flap apertures define small, closed air chambers which assist, with the paperboard of the holder, in inhibiting heat flow to the fingers of the person holding the cup. Spaces between the flaps and the surface embossing define air filled channels which further assist in inhibiting heat flow from the hot coffee to the finger tips of the user.08-12-2010
20100187296DOUBLE WALL CONTAINER WITH INTERNAL SPACER - A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween.07-29-2010
20100173138DURABLE PAPER - The present invention relates to a durable paper or paperboard substrate containing an effective amount of synthetic fibers and having enhanced strength in the machine direction and the cross direction, as well enhanced strength through the cross section of the sheet. The present invention further relates to methods of making and using the substrate.07-08-2010
20100151255PAPER ARTICLES EXHIBITING WATER RESISTANCE AND METHOD FOR MAKING SAME - This invention relates to a process for preparing sized paper and paperboard which incorporates in the paper and paperboard at the size press size a composition comprising one or more “hydrophobic polymers” wherein hydrophobic polymers, the amount of such polymers and the weight ratio of starch to such polymer in the composition are selected such that the paper and paper board exhibits a Cobb Value equal to or less than about 25 and to a sized paper or paperboard web formed by the process.06-17-2010
20100151164MOISTURE RESISTANT CONTAINER - A sheet of cellulose based material having enhanced strength, particularly the dry strength, substantially unaffected repulpability is disclosed. The sheet of cellulose based materials generally includes a first cellulose based material connected with a second cellulose base material element. The first cellulose based material is formed by separating a portion of the fiber from a furnish, treating the separated portion with a cationic wet strength resin which is allowed to bond to the fiber. The treated fiber is them mixed with the untreated balance of the fiber at some point before the paper machine. The fiber that is separated may be secondary fiber, virgin fiber or combinations thereof. The second cellulose base material element is substantially free from any treatment. The second cellulose base material element may be include substantially all untreated fibers.06-17-2010
20100143736SURFACE TREATMENT OF SUBSTRATE OR PAPER/PAPERBOARD PRODUCTS USING OPTICAL BRIGHTENING AGENT - The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises the step of spraying an aqueous composition comprising an optical brightening agent onto at least one surface of a sized paperboard substrate to form a treated paperboard substrate. The treated paperboard substrate includes a layer of OBA on at least one surface of the paper or paperboard substrate in which the brightness of the treated paper or paperboard substrate is greater than the sized paper or paperboard substrate before treating thereof.06-10-2010
20100129553Optical Brightening Compositions For High Quality Inkjet Printing - The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.05-27-2010
20100101742Process Of Treating A Lignocellulosic Material - A process of treating a lignocellulosic material includes a pre-extraction step in which hemicellulose is extracted from the lignocellulosic material. In one embodiment, the pre-extraction step involves contacting the lignocellulosic material with an aqueous solution under conditions that release acidic material from the lignocellulosic material into the aqueous solution, and the aqueous solution includes a basic material that at least partly neutralizes the acidic material so that the aqueous solution at the end of the pre-extraction step has a pH within a range of from 4.5 to 11. The process also includes a pulping step, after the pre-extraction step, in which the lignocellulosic material is separated into pulp. The process further includes an adsorption step, after the pulping step, in which hemicellulose is adsorbed on the pulp.04-29-2010
20100086709PAPER SUBSTRATE CONTAINING A WETTING AGENT AND HAVING IMPROVED PRINTABILITY - 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, and print mottle, as well as 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.04-08-2010
20100080916Composition Suitable for Multifunctional Printing and Recording Sheet Containing Same - A paper sizing or coating composition is provided, which includes: a first binder resin, which is compatible with dry toner binder resin; a second binder resin, which is compatible with liquid toner binder resin, and which is different from the first binder resin; a first pigment, which has a BET surface area of from greater than zero to about 35 m04-01-2010
20100065621Container With Triangulated Corners - A multi-sided container comprises a bottom wall, opposite side walls, opposite end walls, a longitudinal axis, and a transverse axis. The multi-sided container also comprises diagonal corners connecting adjacent ends of the side walls and the end walls. The diagonal corners each comprising an inner diagonal corner panel and an outer diagonal corner panel. One of the inner and outer diagonal corner panels extends at an angle of less than 45° with respect to an adjacent end wall, and the other of said inner and outer diagonal corner panels extends at an angle of less than 45° with respect to an adjacent side wall. One of the inner and outer diagonal corner panels has a major thrust vector in a direction parallel to the transverse axis of the container and said other of said inner and outer diagonal corner panels has a major thrust vector in a direction parallel to the longitudinal axis of the container. The inner and outer diagonal corner panels provide resistance to both lateral and longitudinal deflection of the container.03-18-2010
20100051220EXPANDABLE MICROSPHERES AND METHODS OF MAKING AND USING THE SAME - 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.03-04-2010
20100047562HIGH BRIGHTNESS COATING COMPOSITIONS AND RELATED PRODUCTS - The invention provides a coating composition that provides high brightness, high gloss and superior print quality. The coated product comprises a substrate coated on at least one side with a coating composition comprising a pigment component and a binder component that is made of mixture of two binder resins. Both binder resins are capable of film forming. The first binder resin provides coating gloss and adhesion properties and the second binder resin enhances coating porosity, adhesion, and anti-static properties. The first binder resin that is used at 60-95% by weight of the total binder resin blend is selected from the group consisting of vinyl acetate acrylate, styrene acrylate and styrene butadiene acrylic copolymers. The second binder resin that is used at 5-40% by weight of the total binder resin blend is selected from the group consisting of anion type polystyrene derivatives, polyethylene glycol and polypropylene glycol.02-25-2010
20100043991Papers Having Borate-Based Complexing And Method Of Making Same - The invention involves papers having either an internal starch or a size press applied starch and a boron-containing compound which is added in proportion to the starch and which is believed to interact with the starch to provide improved physical and mechanical properties in the paper. Method of forming the papers are also disclosed02-25-2010
20090320708RECORDING SHEET WITH IMPROVED PRINT DENSITY - This invention is directed to a composition that, when applied to a cellulosic substrate, provides a recording media that has enhanced print density for cyan, magenta and black flexographic printing inks, as well as methods of using and making the composition and media. Also, the present invention relates to a method of achieving enhanced print density with flexographic printing ink compositions at reduced concentrations.12-31-2009
20090317549COMPOSITION AND RECORDING SHEET WITH IMPROVED OPTICAL PROPERTIES - A composition is provided, which comprises a water-soluble salt of a divalent metal; a complexing agent having an affinity for the divalent metal; and an optical brightening agent. Methods of using the composition, and recording sheets which include the composition, are also disclosed.12-24-2009
20090297738Fast Dry Coated Inkjet Paper - Disclosed are a coating composition, coated article, and a method for treating one or more sides of the printable web with the composition, for providing improved printing ink dry time and gloss. The coating composition comprises: a calcium carbonate pigment component comprising a mixture high and low surface area calcium carbonate pigment; a metal salt drying agent; and a cationic dye fixing agent; a pigment binder; optionally a plastic pigment; and optionally an optical brightener; and which provides: a solids content of at least about 25%; a ratio of high to low surface area calcium carbonate in the range of from about 0.5:1 to about 20:1; and a ratio of calcium carbonate pigment component to pigment binder in the range of from about 4:1 to about 50:1.12-03-2009
20090274920Thermoformed Article Made From Bio-Based Biodegradable Polymer Composition - The present invention provides a biodegradable polymer composition useful for manufacturing biodegradable in which, the process comprising: (1) providing a renewable polymer and/or natural fiber having: (a) a T11-05-2009
20090274855Recording Sheet With Enhanced Print Quality At Low Additive Levels - 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.11-05-2009
20090272789STACKABLE AND INDEXABLE PACKING TRAY - A stackable, open-topped shipping and/or display container for shipping and displaying products having indexable projections for stacking a plurality of such containers, the indexable projections formed from cutouts within the indexing side wall flaps.11-05-2009
20090239020Paper Substrates Useful As Universal Release Liners - This invention relates to a paper substrate useful as a universal release liner, as well as methods of making and using the same.09-24-2009
20090236059DIGESTER WASH EXTRACTION BY INDIVIDUAL SCREEN FLOW CONTROL - A continuous digester comprises a wash zone having a plurality of individual wash screens disposed about an inner wall of the digester for the withdrawal of co-current downflow liquor from the wash zone. A conduit is connected in fluid communication between each of the wash screens and a collector for co-current downflow liquor withdrawn from the wash zone of the digester. A valve is interposed along the length of the conduit leading from each of the wash screens. The valve is operable between open and closed positions in response to a signal received from a temperature sensor associated with the conduit leading from each of the wash screens. The signal represent changes in temperature of a corresponding co-current down flow liquor through a corresponding conduit wherein a corresponding valve permits adjustment of a corresponding flow rate of liquor through said corresponding conduit to a flow rate that is substantially equal to each of the other flow rates of co-current downflow liquor through each of the other conduits.09-24-2009
20090184023Child-Resistant Package With Latch And Retaining Feature - A child-resistant but adult-friendly package package comprising a sleeve having top and bottom walls, opposite side walls, a closed end, and an open end. A blister card insert configured to be movable into and out of the sleeve through the open end. A first latch element on the insert and a second latch element on the sleeve, the first and second latch elements are interengageable when the insert is fully inserted in the sleeve to latch the insert against withdrawal from the sleeve. A biasing member on the insert is configured to be in contact with the top and bottom walls of the sleeve, urging the first latch element into engagement with the second latch element. The biasing member also forming a first portion of a retaining means to prevent complete withdrawal of the insert from the sleeve and a second portion of the retaining means is formed on the sleeve for cooperation with the first portion to retain the insert against complete withdrawal from the sleeve.07-23-2009
20090165968MODIFIED KRAFT FIBERS - A method of producing a modified pulp comprising treating wood chips in an extraction process to remove hemicellose to form treated wood chips; and subjecting said treated wood chips to chemical or semichemical pulping to form a modified Kraft pulp wherein the amount of hemicellulose contained in the modified Kraft pulp is from about 5 to about 10% by dry weight of the modified pulp.07-02-2009

Patent applications by INTERNATIONAL PAPER COMPANY