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公开(公告)号：US20240417130A1
公开(公告)日：2024-12-19
申请号：US18333938
申请日：2023-06-13
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Jack Lawrence Lane , Charles Aaron Alexander
Abstract: A container including a drop panel to facilitate dispensing of material from the container and a blank for forming the container. The drop panel is formed from a portion of an end panel alone or a portion of the end panel and an entirety of a top flange. When the container is assembled, a dispensing ledge is formed by folding the drop panel toward an outside of the container and connecting a top drop panel edge to an outer surface of the container. Also provided is a method of forming a dispensing ledge in a container.
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公开(公告)号：US12146264B2
公开(公告)日：2024-11-19
申请号：US17931155
申请日：2022-09-12
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： John Mullaney Meazle
Abstract: A process for making a paper product comprising: providing a forming fabric; causing the forming fabric to rotate such that an upper surface of the forming fabric moves in a machine direction; providing a multi-layer headbox comprising first and second inlet headers and a slice outlet; providing a first aqueous slurry of first fibers to the first inlet header and a second aqueous slurry of second fibers to the second inlet header; combining streams of the first and second aqueous slurries to define a jet exiting the slice outlet; emitting the jet onto the upper surface of the forming fabric to form a web; causing the forming fabric to oscillate in a direction transverse to the machine direction, whereby at least a significant number of the first fibers are caused to align in a direction that deviates from the machine direction; and forming the paper product from the web.
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公开(公告)号：US20240295076A1
公开(公告)日：2024-09-05
申请号：US18662349
申请日：2024-05-13
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Dwight Edward Anderson
Abstract: A refining member including a refining body with a refining surface including first and second refiner bars separated by first and second refiner grooves. The first and second refiner bars extend from respective first and second radially inward positions to respective first and second radially outward positions. The first and second refiner bars have a respective first and second height extending upward from a floor of a respective, adjacent first or second refiner groove. The second height is a minimum height of the second refiner bars and is spaced apart from the second radially inward position, with the second height being at least about 0.35 mm less than the first height. The first refiner bars are adapted to refine wood fibers and the second refiner bars are adapted to break up fiber bundles.
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公开(公告)号：US12077914B2
公开(公告)日：2024-09-03
申请号：US18302060
申请日：2023-04-18
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Kerry D. Figiel
CPC classification number: D21F3/06 , D21G9/0036 , G01L5/0085
Abstract: Multiple groups of sensors are circumferentially spaced apart at each cross-directional position along a sensing roll of a nip press to measure and cancel or nearly cancel the effects of rotational variability which may be acting on the sensing roll. The strategically-placed sensors are designed to measure the pressure being placed against the web that is being advanced through the nip press. The average of the measurements of multiple sensors spaced circumferential apart provides a good cancellation of any rotational variability that might be found at a cross-directional position on the sensing roll. In this manner, a more true measurement of the nip pressure profile can be obtained and better adjustments made to reduce nip pressure profile variability. In addition, the nip variability profile may be used as a predictor of cover or bearing failures, resonant frequencies and other roll anomalies.
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公开(公告)号：US11982054B2
公开(公告)日：2024-05-14
申请号：US17892253
申请日：2022-08-22
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Dwight Edward Anderson
Abstract: A refining member including a refining body with a refining surface including first and second refiner bars separated by first and second refiner grooves. The first and second refiner bars extend from respective first and second radially inward positions to respective first and second radially outward positions. The first and second refiner bars have a respective first and second height extending upward from a floor of a respective, adjacent first or second refiner groove. The second height is a minimum height of the second refiner bars and is spaced apart from the second radially inward position, with the second height being at least about 0.35 mm less than the first height. The first refiner bars are adapted to refine wood fibers and the second refiner bars are adapted to break up fiber bundles.
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Patent Agency Ranking
公开(公告)号：US11905658B2
公开(公告)日：2024-02-20
申请号：US17064383
申请日：2020-10-06
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Dwight Edward Anderson
Abstract: A refining member for a pulp refiner comprising a refining body with a refining surface comprising refiner bars separated by refiner grooves and teeth. Each of the refiner bars extend from a radially inward position on the refining surface to a first radially outward position on the refining surface, and the teeth extend to a second radially outward position on the refining surface. The second radially outward position is nearer to an outermost part of the refining body than the first radially outward position. The refiner bars are adapted to refine wood fibers, and the teeth are adapted to break up fiber bundles.
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公开(公告)号：US11591429B2
公开(公告)日：2023-02-28
申请号：US17241421
申请日：2021-04-27
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： Karen Brogan , Charles E. Miller , Angel Stoyanov , Torsten Lindner , Maike Siemons
IPC: C08F251/02 , C08B3/08 , C08B15/00 , D21H27/00 , D21H11/16 , D21H11/20 , D21H17/37 , D01F11/02 , D21C9/00 , D21H21/22 , B01J20/24 , B01J20/26 , B01J20/28 , D01F2/00
Abstract: Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP value of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.
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公开(公告)号：US11440698B2
公开(公告)日：2022-09-13
申请号：US17405600
申请日：2021-08-18
Applicant: INTERNATIONAL PAPER COMPANY
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 forming gussets connected to a respective one of the first and second side panels and connected to the inner end panel. An adhesive area is located on one side of the blank and comprises at least a portion on each of the outer end panel and the inner end panel. The adhesive area adheres the gussets to the inner end panel and to the outer end panel.
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公开(公告)号：USD956553S1
公开(公告)日：2022-07-05
申请号：US29746555
申请日：2020-08-14
Applicant: INTERNATIONAL PAPER COMPANY
Designer： Alex Dean Bevier
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公开(公告)号：US20220195660A1
公开(公告)日：2022-06-23
申请号：US17691624
申请日：2022-03-10
Applicant: INTERNATIONAL PAPER COMPANY
Inventor： SADAKAT HUSSAIN , JAMES D. REGEL
IPC: D06M15/59 , D21F11/12 , D06M15/267
Abstract: The present disclosure provides processes for making cellulose-based material and containers utilizing the cellulose-based material. More particularly, the present disclosure provides processes to make cellulose-based material comprising strength-enhancing preparations and processes to make improved containers with the strength-enhanced cellulose-based materials.
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