Multi-layer Waterlaid Webs Or Sheets Patents (Class 162/123)
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Patent number: 12139855Abstract: Belts and fibrous structures may include discrete cells including one or more legs and/or one or more concavities in certain patterns or Cell Groups. The cells may be discrete knuckles or pillows and the fibrous structures may further include an emboss.Type: GrantFiled: November 6, 2020Date of Patent: November 12, 2024Assignee: The Procter & Gamble CompanyInventors: Charles Allen Redd, Kathryn Christian Kien, Osman Polat, Anthony Paul Bankemper
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Patent number: 12129601Abstract: Disclosed are non-treated, creped tissue webs, and tissue products produced therefrom, having low stiffness and surface lint. The inventive products may be produced by a print creping process adapted to dispose a non-crosslinked latex polymer on at least one of the outer surfaces of the tissue product. The non-crosslinked latex polymer creping composition does not negatively affect stiffness such that the products generally have a Stiffness Index less than about 5.0, such as from about 2.5 to about 5.0.Type: GrantFiled: September 19, 2023Date of Patent: October 29, 2024Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kevin Joseph Vogt, Mark William Sachs, Christopher Steven LeCount, Erin Ann McCormick, Devon Gaynelle Curley, Sara Jane Wille Stabelfeldt, Nathan John Vogel
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Patent number: 12023612Abstract: A filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 60% to 80% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when wound into a roll and to permit further processing without the media becoming too brittle. The filtration media comprises a blend of cellulose and synthetic fibers having a weight percent of 81 wt % to 87 wt % of a weight of the media and a resin binder having a weight of 13 wt % to 19 wt % (preferably about 16 wt %) of the weight of the media.Type: GrantFiled: November 22, 2021Date of Patent: July 2, 2024Assignees: AHLSTROM OYJ, DONALDSON COMPANY, INC.Inventors: Kevin R. Schouweiler, Kent Williamson, Kristin Amsden, Steven D. Schmeichel
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Patent number: 12012698Abstract: The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.Type: GrantFiled: April 27, 2018Date of Patent: June 18, 2024Inventor: Maurizio Tirimacco
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Patent number: 12000090Abstract: A treated article includes fibers, a sizing agent, and a retention aid. The sizing agent includes a wax or a component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401. The retention aid includes a nitrogen-containing polymer independently selected from the group consisting of (i) a nitrogen-containing polymer of Formula I, (ii) a polyethyleneimine, (iii) a polyaminoamide, (iv) a copolymer formed from the reaction product of epichlorohydrin and dimethylamine, and (v) combinations thereof.Type: GrantFiled: October 11, 2021Date of Patent: June 4, 2024Assignee: AGC CHEMICALS AMERICAS, INC.Inventor: Tess Duffin Crosetto
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Patent number: 11987934Abstract: Embossed, multi-ply tissue products having consumer preferred physical properties and an aesthetically pleasing appearance such as a first tissue ply having a molded topographical pattern and a first embossed pattern comprising a plurality of embossed elements disposed thereon and a second tissue ply having a molded topographical pattern and a second embossed pattern comprising a plurality of dot emboss elements disposed thereon. The multi-ply tissue products generally have improved sheet bulk, such as a sheet bulk greater than about 15 cubic centimeters per gram (cc/g), and improved softness, such as an Average TS7 less than about 12.0 and more preferably less than about 11.0, such as from about 10.0 to about 12.0. The foregoing Average TS7 values may be obtained at a product geometric mean tensile strength (GMT) from about 800 to about 1,200 g/3?.Type: GrantFiled: March 6, 2019Date of Patent: May 21, 2024Inventors: Devon Gaynelle Curley, Elizabeth Oriel Bradley, Tammy Lynn Baum
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Patent number: 11959227Abstract: The creped multi-ply tissue products are durable, smooth and have low levels of Slough. In certain instances, the creped multi-ply tissue products are produced using a creping composition comprising a non-crosslinked latex polymer. The creped multi-ply tissue products may have a geometric mean tensile (GMT) from about 700 to about 1,500 g/3?, a basis weight from about 45 to about 60 gsm and a Slough less than about 2.00 mg, such as from about 0.10 to about 2.00 mg. The inventive tissue products also have good durability, such as a Durability Index from about 10.0 to about 20.0, smooth surfaces, such as a TS750 value from about 15.0 to 40.0 and low stiffness, such as a Stiffness Index less than about 10.0.Type: GrantFiled: March 31, 2023Date of Patent: April 16, 2024Inventors: Kevin Joseph Vogt, Mark William Sachs, Erin Ann McCormick, Devon Gaynelle Curley, Sara Jane Wille Stabelfeldt, Nathan John Vogel, Christopher Steven LeCount
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Patent number: 11896464Abstract: A negative pressure wound therapy system includes at least one sensor coupled to a wound dressing for a wound of a patient, and a control circuit. The at least one sensor is configured to output an indication of a displacement of the wound dressing. The control circuit is configured to receive the indication of the displacement of the wound dressing, calculate a therapy parameter corresponding to the indication of the displacement, and output the therapy parameter.Type: GrantFiled: April 8, 2019Date of Patent: February 13, 2024Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Justin Alexander Long, Timothy Mark Robinson
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Patent number: 11795626Abstract: Disclosed are non-treated, creped tissue webs, and tissue products produced therefrom, having low stiffness and surface lint. The inventive products may be produced by a print creping process adapted to dispose a non-crosslinked latex polymer on at least one of the outer surfaces of the tissue product. The non-crosslinked latex polymer creping composition does not negatively affect stiffness such that the products generally have a Stiffness Index less than about 5.0, such as from about 2.5 to about 5.0.Type: GrantFiled: May 26, 2020Date of Patent: October 24, 2023Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kevin Joseph Vogt, Mark William Sachs, Christopher Steven LeCount, Erin Ann McCormick, Devon Gaynelle Curley, Sara Jane Wille Stabelfeldt, Nathan John Vogel
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Patent number: 11639582Abstract: Articles, for example multi-ply fibrous structure-containing articles such as multi-ply sanitary tissue products, containing two or more fibrous structure plies, and more particularly to multi-ply articles containing two or more fibrous structure plies having a plurality of fibrous elements wherein the articles exhibit improved bulk and absorbent properties compared to known articles and methods for making same, are provided.Type: GrantFiled: December 11, 2020Date of Patent: May 2, 2023Assignee: The Procter & Gamble CompanyInventors: Steven Lee Barnholtz, Christopher Michael Young, Timothy James Klawitter, James Roy Denbow, Michael Gomer Stelljes, Michael Donald Suer, Jeffrey Glen Sheehan, Paul Dennis Trokhan, Kathryn Christian Kien
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Patent number: 11634868Abstract: The present invention discloses tissue products, specifically rolled paper towel products, such as one, two or three ply tissue products having a basis weight greater than about 35 gsm and a GMT greater than about 1,500 g/3?. The products have a three-dimensional surface, typically the air contacting surface, comprising substantially continuous machine direction (MD) oriented elements, discrete cross-machine direction (CD) oriented elements and discrete MD oriented valleys having valley sidewalls formed by the MD oriented elements and valley endwalls formed by the CD oriented elements. The discrete valleys generally have a length greater than about 10.0 mm. The CD oriented elements comprise a relatively small percentage of the tissue surface area, such as less than about 15 percent, yet the tissue products display good anti-nesting properties when spirally wound into rolls, such as a Roll Structure greater than about 1.75.Type: GrantFiled: January 20, 2021Date of Patent: April 25, 2023Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kevin Joseph Vogt, Christopher Steven LeCount, Richard Allen Zanon, Mark Alan Burazin
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Patent number: 11441272Abstract: The present invention relates to a method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. The invention also relates to a paperboard and a corrugated board.Type: GrantFiled: August 30, 2018Date of Patent: September 13, 2022Assignee: Stora Enso OYJInventor: Tuomo Sippus
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Patent number: 11149446Abstract: The present disclosure relates to a floor panel, comprising a laminate of a core layer, comprising a ceramic or mineral material and a binder a first pair of opposite edges, said first pair of opposite edges comprising complementary coupling parts allowing to mutually couple of plurality of floor panels to each other, a top layer, comprising a ceramic material or a natural stone, wherein the side of the core layer facing the top layer comprises a reinforcement layer, locally having a higher density than the density of the rest of the core layer.Type: GrantFiled: September 10, 2018Date of Patent: October 19, 2021Assignee: Champion Link International CorporationInventors: Thomas Luc Martine Baert, Tom Van Poyer, Sven Boon
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Patent number: 11091880Abstract: Fibrous structures that exhibit a Tensile Ratio of less than 1.75 and/or less than 1.49 as measured according to the Tensile Strength Test Method described herein and a Geometric Mean Modulus (GM Modulus) of less than 1402.4 g/cm at 15 g/cm and/or a Machine Direction Modulus (MD Modulus) of less than 1253.4 g/cm at 15 g/cm and/or a Cross Machine Direction Modulus (CD Modulus) of less than 1569.2 g/cm at 15 g/cm, are provided.Type: GrantFiled: February 28, 2020Date of Patent: August 17, 2021Assignee: The Procter & Gamble CompanyInventors: John Allen Manifold, Joshua Thomas Fung, Jeremy Howard Nugent, Ashley Lynn Kuntz, Katie Kristine Glass, Kathryn Christian Kien, Kevin Mitchell
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Patent number: 10941526Abstract: Decoration paper for a decorative laminate, which is inkjet printable, comprising a paper substrate comprising at least one opacifying pigment having a refractive index of greater than 2, and on at least one face of the substrate a surface treatment comprising a binder and between 0.5 and 9 g/m2 of a filler having a specific surface area of between 2 and 100 m2/g and a refractive index of less than or equal to 2.Type: GrantFiled: February 2, 2018Date of Patent: March 9, 2021Assignee: Ahlstrom-Munksjö OyjInventor: Sébastien Charignon
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Patent number: 10927508Abstract: The present invention discloses tissue products, specifically rolled bath tissue products, having a three-dimensional surface topography comprising substantially continuous machine direction (MD) oriented elements, discrete cross-machine direction (CD) oriented elements and discrete MD oriented valleys having valley sidewalls formed by the MD oriented elements and valley endwalls formed by the CD oriented elements. The discrete valleys generally have a length greater than about 10.0 mm. The CD oriented elements comprise a relatively small percentage of the tissue surface area, such as less than about 15 percent, yet the tissue products display good anti-nesting properties when spirally wound into rolls, such as a Roll Structure greater than about 0.75.Type: GrantFiled: November 30, 2018Date of Patent: February 23, 2021Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Kevin Joseph Vogt, Mark Alan Burazin, Mike Thomas Goulet, Richard Allen Zanon
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Patent number: 10907308Abstract: Articles, for example multi-ply fibrous structure-containing articles such as multi-ply sanitary tissue products, containing two or more fibrous structure plies, and more particularly to multi-ply articles containing two or more fibrous structure plies having a plurality of fibrous elements wherein the articles exhibit improved bulk and absorbent properties compared to known articles and methods for making same, are provided.Type: GrantFiled: August 22, 2018Date of Patent: February 2, 2021Assignee: The Procter & Gamble CompanyInventors: Steven Lee Barnholtz, Christopher Michael Young, Timothy James Klawitter, James Roy Denbow, Michael Gomer Stelljes, Michael Donald Suer, Jeffrey Glen Sheehan, Paul Dennis Trokhan, Kathryn Christian Kien
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Patent number: 10844548Abstract: A multi-ply through air dried structured tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less. Each ply of the tissue has a first exterior layer that includes a wet end temporary wet strength additive in an amount of approximately 0.25 kg/ton and a wet end dry strength additive in an amount of approximately 0.25 kg/ton, an interior layer that includes a first wet end additive comprising an ionic surfactant, and a second wet end additive comprising a non-ionic surfactant, and a second exterior layer.Type: GrantFiled: April 9, 2019Date of Patent: November 24, 2020Assignee: First Quality Tissue, LLCInventors: James E. Sealey, II, Byrd Tyler Miller, IV
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Patent number: 10767317Abstract: The invention relates to a method and treatment system for making of paper or surface ply of a multi-ply board from a fibre suspension, where at least 90 weight-% of fibres originate from chemical pulping process, chemi-thereto mechanical pulping process and/or office waste deinking pulping process. The fibre suspension further comprises inorganic mineral particles and cationic starch. A cationic copolymer of acrylamide and cationic monomers is incorporated to the fibre suspension and it is allowed to interact by flocculation with at least some of the said components of the fibre suspension. An anionic copolymer of acrylamide and more than 30 mol-% of anionic monomers is added to the fibre suspension, and fibre suspension is formed into a fibre web and drying the web to a dryness of at least 80%. An aqueous surface composition comprising polymeric binder is applied on the surface of the web.Type: GrantFiled: May 19, 2017Date of Patent: September 8, 2020Assignee: KEMIRA OYJInventors: Josep Lluis Bisbal, Daniel Nuno da Rita Santos, Matti Hietaniemi
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Patent number: 10731296Abstract: A paperboard, sidewall, and disposable cup made from about 70 wt % to about 100 wt % of recycled fiber. The paperboard can include about 70 wt % to about 100 wt % of recycled fiber, based on the total weight of the fiber. The paperboard can have a board thickness of about 14 mil to about 20 mil, an apparent density of less than about 11.5 lbs/3,000 ft2/mil, a CD Taber Stiffness of about 50 g*cm or more, and a MD/CD Taber Stiffness ratio of 1.0 to 3.0, and can be used to make recycled cups having sufficient strength and rigidity properties that rival cups made from virgin fibers.Type: GrantFiled: September 6, 2019Date of Patent: August 4, 2020Assignee: GPCP IP Holdings LLCInventors: Gary Harold Knauf, Joseph Pounder
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Patent number: 10710271Abstract: A process for producing a molded insulating part, a molded insulating part and a casting tool for the production of an inorganic pulp composed of water, glass fibers and/or mineral fibers and sheet silicate, introduction of the pulp into a cavity of a casting tool whose wall is at least partially water-permeable, which cavity has on at least one side the negative shape of the molded insulating part to be produced, removal of the aqueous fraction present in the pulp, opening of the casting tool and subsequent taking-out of the molded insulating part produced. The pulp produced using water for producing the molded insulating part comprised a glass fiber/sheet silicate mixture or mineral fiber/sheet silicate mixture has a proportion of exclusively synthetic sheet silicate (5) in the range from 0.5% to 2.5% and a proportion of glass fibers and/or mineral fibers (4) of from 0.3 to 1.5%.Type: GrantFiled: October 9, 2019Date of Patent: July 14, 2020Assignee: CUYLITS HOLDING GmbHInventors: Joerg Franke, Diederik Cuylits
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Patent number: 10640927Abstract: An absorbent towel paper web is disclosed. The absorbent towel paper web has from 20% to 90% of a soft wood pulp fiber mixture having from 18.5% to 88.5% of soft wood pulp fiber, wherein the soft wood pulp fiber is optionally refined; from 0.25% to 5.0% of cationic strengthening polymer, from 10% to 60% of a hard wood pulp fiber mixture; and not more than 10% moisture. The absorbent towel paper web has a Mean Square Dry Tensile Strength index ranging from 6 N·m/g to 12 N·m/g and a Wet Tensile Strength to Dry Tensile Strength Ratio value ranging from 0.295 to 0.35.Type: GrantFiled: September 19, 2017Date of Patent: May 5, 2020Assignee: Mercer International, Inc.Inventor: Tobias Ziegenbein
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Patent number: 10640928Abstract: An absorbent towel paper product is disclosed. The absorbent towel paper product has two web plies. Each web has from 20% to 90% of a soft wood pulp fiber mixture having from 18.5% to 88.5% of optionally refined soft wood pulp fiber; from 0.25% to 5.0% of cationic strengthening polymer, from 10% to 55% of a hard wood pulp fiber mixture; and not more than 10% moisture. The two-ply paper product has a Mean Square Dry Tensile Index ranging from 10 N·m/g to 18 N·m/g and a Cross-directional Wet Tensile Strength to Cross-directional Dry Tensile Strength Ratio value ranging from 0.295 to 0.33.Type: GrantFiled: September 19, 2017Date of Patent: May 5, 2020Assignee: Mercer International Inc.Inventor: Tobias Ziegenbein
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Patent number: 10435826Abstract: A hydroentangled nonwoven sheet material produced by a process including: 0) optionally providing a polymer web on a carrier; a) providing an aqueous suspension containing short fibers and a surfactant; b) depositing the aqueous suspension on the carrier; c) removing aqueous residue of the aqueous suspension deposited in step b) to form a fibrous web; b?) depositing aqueous suspension on a surface of the fibrous web formed in step c); c?) removing aqueous residue of the aqueous suspension deposited in step b?) to form a combined fibrous web; d) hydroentangling the combined fibrous web; and optionally e) drying the hydroentangled web, and/or f) further processing and finalizing the dried, hydroentangled web the web to produce the nonwoven end material. The hydroentangled non-woven sheet material obtainable by this process has a low degree of surface irregularity and contains low residues of surfactants.Type: GrantFiled: December 1, 2015Date of Patent: October 8, 2019Assignee: SCA HYGIENE PRODUCTS ABInventors: Mikael Strandqvist, Hannu Ahoniemi
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Patent number: 10415188Abstract: A paperboard, sidewall, and disposable cup made from about 70 wt % to about 100 wt % of recycled fiber. The paperboard can include about 70 wt % to about 100 wt % of recycled fiber, based on the total weight of the fiber. The paperboard can have a board thickness of about 14 mil to about 20 mil, an apparent density of less than about 11.5 lbs/3,000 ft2/mil, a CD Taber Stiffness of about 50 g*cm or more, and a MD/CD Taber Stiffness ratio of 1.0 to 3.0, and can be used to make recycled cups having sufficient strength and rigidity properties that rival cups made from virgin fibers.Type: GrantFiled: June 27, 2017Date of Patent: September 17, 2019Assignee: GPCP IP Holdings LLCInventors: Gary Harold Knauf, Joseph R. Pounder
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Patent number: 10364533Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.Type: GrantFiled: May 5, 2017Date of Patent: July 30, 2019Assignee: STORA ENSO OYJInventors: Isto Heiskanen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 10344428Abstract: A process for individualizing (separating) trichome fibers from a trichome source, such as a leaf and/or a stem, and more particularly to a process for individualizing (separating) trichome fibers from a trichome source utilizing a chemical separation process are provided.Type: GrantFiled: May 23, 2017Date of Patent: July 9, 2019Assignee: The Procter & Gamble CompanyInventors: Khosrow Parviz Mohammadi, Freddy Arthur Barnabas, Bryan Keith Waye, Douglas Michael Graham, Raul Victorino Nunes, Mark Lewis Agerton, Kassandra Natale Diazrivera, Alan Howard Ullman
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Patent number: 10301779Abstract: A multi-ply through air dried structured tissue having a bulk softness of less than 10 TS7 and a lint value of 5.0 or less. Each ply of the tissue has a first exterior layer that includes a wet end temporary wet strength additive in an amount of approximately 0.25 kg/ton and a wet end dry strength additive in an amount of approximately 0.25 kg/ton, an interior layer that includes a first wet end additive comprising an ionic surfactant, and a second wet end additive comprising a non-ionic surfactant, and a second exterior layer.Type: GrantFiled: April 27, 2017Date of Patent: May 28, 2019Assignee: First Quality Tissue, LLCInventors: James E. Sealey, II, Byrd Tyler Miller, IV
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Patent number: 10294613Abstract: A bleached softwood kraft pulp fiber with high alpha cellulose content and increased brightness and whiteness is provided. Methods for making the kraft fiber and products made from it are also described.Type: GrantFiled: July 25, 2017Date of Patent: May 21, 2019Assignee: GP Cellulose GmbHInventors: Arthur J. Nonni, Charles E. Courchene, Philip R. Campbell, Steven C. Dowdle, Joel M. Engle, Christopher M. Slone
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Patent number: 10280566Abstract: The present disclosure provides high bulk tissue products, as well as an apparatus and methods for manufacturing the same. The tissue products provided herein not only have high bulk, but they also have improved surface smoothness, particularly compared to tissue products of similar basis weights.Type: GrantFiled: April 12, 2017Date of Patent: May 7, 2019Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Mark Alan Burazin, Lynda Ellen Collins, Jeffrey Dean Holz, Mark William Sachs, Peter John Allen, Kevin Joseph Vogt
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Patent number: 10174458Abstract: Embossed fibrous structures that exhibit a Dry Burst of greater than 270 g as measured according to the Dry Burst Test Method and more particularly to embossed fibrous structures that exhibit a Dry Burst of greater than 270 g as measured according to the Dry Burst Test Method and a Total Dry Tensile of less than 2375 g/76.2 mm and/or a Geometric Mean Total Dry Tensile of less than 1130 g/76.2 mm as measured according to the Tensile Strength Test Method are provided.Type: GrantFiled: May 22, 2013Date of Patent: January 8, 2019Assignee: The Procter & Gamble CompanyInventors: John Allen Manifold, Charles Chidozie Ekenga, Douglas Jay Barkey, Kathleen Diane Sands, Thorsten Knobloch
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Patent number: 10132043Abstract: There is provided a multilayered paper material for use in a valve sack for a hydraulic binder, comprising a paper layer, such as a Kraft paper layer, provided on at least one side with a pre-coating layer and a moisture barrier coating layer, wherein the pre-coating layer comprises inorganic filler and binder in a dry weight ratio of between 4:1 and 20:1.Type: GrantFiled: June 24, 2015Date of Patent: November 20, 2018Assignee: BILLERUDKORSNÄS ABInventors: Jonas Almkvist, Ove Lindström, Constantinos Xenopoulos
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Patent number: 10092145Abstract: Fibrous structures that exhibit a Geometric Mean Modulus (GM Modulus) of less than 1402.4 g/cm at 15 g/cm as measured according to the Modulus Test Method described herein and a Geometric Mean Elongation (GM Elongation or GM Elong) of less than 10.2% measured according to the Elongation Test Method described herein are provided.Type: GrantFiled: July 29, 2016Date of Patent: October 9, 2018Assignee: The Procter & Gamble CompanyInventors: John Allen Manifold, Joshua Thomas Fung, Jeremy Howard Nugent, Ashley Lynn Kuntz, Katie Kirstine Fleming Glass, Kathryn Christian Kien, Kevin Mitchell
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Patent number: 9896803Abstract: A fibrous sheet having a basis weight of between 20 and 1000 g/m2 that disintegrates in water, has 10% to 70% starch on the basis of the total weight of the dry fibrous sheet. The disintegration time in water, measured in accordance with standard NF Q34-020 applied to a specimen of the sheet of 9×8 cm2, is less than 50 seconds. A loss of strength of the sheet measured in accordance with a defined table test corresponds to a loss of strength of a specimen of said sheet forming an angle of at least 85° after having being wetted with water for a duration of 6 seconds, and/or a residual wet strength of the sheet relative to its dry strength, as measured according to a defined ring crush test, is less than 1%. The fibrous sheet may be used for the manufacture of a water disintegrable core in a roll of tissue paper.Type: GrantFiled: August 28, 2014Date of Patent: February 20, 2018Assignee: SCA TISSUE FRANCEInventors: Philippe Colin, Jean-Claude Dozzi, Pierre Probst, Véronique Wiss, Rémy Ruppel
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Patent number: 9808782Abstract: An optoelectronic device as well as its methods of use and manufacture are disclosed. In one embodiment, an optoelectronic device includes first and second semiconducting atomically thin layers with corresponding first and second lattice directions. The first and second semiconducting atomically thin layers are located proximate to each other, and an angular difference between the first lattice direction and the second lattice direction is between about 0.000001° and 0.5°, or about 0.000001° and 0.5° deviant from of a Vicnal angle of the first and second semiconducting atomically thin layers. Alternatively, or in addition to the above, the first and second semiconducting atomically thin layers may form a Moiré superlattice of exciton funnels with a period between about 50 nm to 3 cm. The optoelectronic device may also include charge carrier conductors in electrical communication with the semiconducting atomically thin layers to either inject or extract charge carriers.Type: GrantFiled: September 28, 2016Date of Patent: November 7, 2017Assignee: Massachusetts Institute of TechnologyInventors: Ju Li, Xiaofeng Qian, Menghao Wu
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Patent number: 9518360Abstract: A fibrous sheet having a basis weight of between 20 and 1000 g/m2 being manufactured according to a wet papermaking process, and disintegrating in water in less than 120 seconds, has 10 to 70% starch and at least 30% of papermaking fibers on the basis of the total weight of the dry fibrous sheet. The sheet may be used for the manufacture of a water disintegrable core in a roll of tissue paper.Type: GrantFiled: August 13, 2015Date of Patent: December 13, 2016Assignee: SCA TISSUE FRANCEInventors: Philippe Colin, Jean-Claude Dozzi, Pierre Probst, Véronique Wiss, Rémy Ruppel
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Patent number: 9458574Abstract: A fibrous structure includes first, second, and third relatively high density wet-formed discrete elements disposed in a repeating concentric pattern. Each relatively high density wet-formed discrete element is at least partially defined by a continuous relatively low density wet-formed network that extends about an area of the fibrous structure. The first, second, and third relatively high density wet-formed discrete elements are distinguishable one from another by their respective area dimensions.Type: GrantFiled: February 10, 2012Date of Patent: October 4, 2016Assignee: The Procter & Gamble CompanyInventors: Dinah Achola Myangiro, Douglas Jay Barkey, Paul Dennis Trokhan
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Patent number: 9309627Abstract: A multi-ply bath tissue having no more than three plies and no fewer than two plies. The multi-ply tissue has a basis weight of from about 20 to about 35 lbs per 3000 sq foot ream and includes from about 3% to about 50% cellulosic microfiber, from about 50% to about 97% wood pulp fibers, has a geometric mean (GM) dry tensile of from about 17 to 80 g/3 in. per pound of basis weight, a cross-machine direction (CD) dry tensile of between about 30 to about 60 g/3 in. per pound of basis weight, and sufficient temporary wet strength resin to provide an initial Finch Cup CD wet tensile of from about 2.5 to about 20 g/3 in. per pound of basis weight. The initial Finch Cup CD wet tensile decays to less than 65% of the initial value in less than fifteen minutes after immersion in water. The product has a caliper of at least 5 mils per 8 sheets per pound of basis weight.Type: GrantFiled: July 13, 2012Date of Patent: April 12, 2016Assignee: Georgia-Pacific Consumer Products LPInventors: Joseph H. Miller, Daniel W. Sumnicht, T. Philips Oriaran, Brian J. Schuh, Alberto J. Ramirez, Jeffrey A. Lee
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Patent number: 9267237Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and drying the web in order to form paper or board. According to the invention the water content of the suspension from which the web is formed is 50% or less by weight of liquids. By means of the invention, energy consumption of paper manufacturing can be significantly reduced.Type: GrantFiled: June 7, 2010Date of Patent: February 23, 2016Assignees: UPM-Kymmene Corporation, STORA ENSO OYJInventors: Hans-Peter Hentze, Jenni Sievanen, John Kettle, Artem Kulachenko, Antti Korpela, Jukka Ketoja, Erkki Hellen, Tuomo Hjelt, Jaakko Hiltunen, Eila Turunen, Asko Sneck
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Publication number: 20150129145Abstract: Paper products, such as hand towels, have high absorbency, high caliper, and good perceived softness. Two-ply products have a caliper of at least about 260 mils/8 sheets and an SAT capacity of at least about 650 g/m2. The paper products are made using a structuring fabric that has a high planar volumetric index, which indicates a relation between the contact area ratio of a papermaking web contacting surface of the structuring fabric and the volume of pockets of the fabric.Type: ApplicationFiled: November 14, 2014Publication date: May 14, 2015Inventors: Hung Liang Chou, Daniel H. Sze, Xiaolin Fan, Frank D. Harper, Steven R. Olson
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Publication number: 20150114580Abstract: Fibrous elements, for example filaments, containing an acrylamide-based copolymer, fibrous structures employing such fibrous elements, and methods for making same are provided.Type: ApplicationFiled: October 22, 2014Publication date: April 30, 2015Inventors: Matthew Gary McKEE, Gregory Charles GORDON, Joerg KLEINWAECHTER, Mark Robert SIVIK, Paul Dennis TROKHAN
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Publication number: 20150114581Abstract: The invention relates to a fibrous web product such as paper, and a method for the preparation of such fibrous web. According to the method microfibrillated cellulose (MFC) together with a pulp of a greater fibre length, such as chemithermomechanical pulp (CTMP), are mixed with a foam of water and a sur-factant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to the final web product. The method brings a high bulk in combination with a high Scott bond value, to provide improved wet and dry tensile strength for the paper and board products.Type: ApplicationFiled: April 24, 2013Publication date: April 30, 2015Inventors: Karita Kinnunen, Tuomo Hjelt
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Patent number: 9011641Abstract: Fibrous structures that exhibit a Free Fiber End Count greater than the Free Fiber End Count of known fibrous structures in the range of free fiber end lengths of from about 0.10 mm to about 0.75 mm as determined by the Free Fiber End Test Method, and sanitary tissue products comprising same and methods for making same are provided.Type: GrantFiled: May 30, 2013Date of Patent: April 21, 2015Assignee: The Procter & Gamble CompanyInventors: Khosrow Parviz Mohammadi, John Allen Manifold, James Edmond Haas
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Patent number: 8980057Abstract: A fibrous structure. The fibrous structure can be a paper product treated with a waterborne shape memory polymer. The waterborne shape memory polymer can include structural units, wherein each structural unit comprises: a) a switching segment comprising a semicrystalline or amorphous polymer; b) a chargeable unit comprising a cationically or anionically chargeable group; and c) a cross-linkable unit comprising a monomer, wherein the cross-linkable unit connects the switchable segment to the chargeable unit, wherein the waterborne shape memory polymer is dispersible in water.Type: GrantFiled: April 4, 2014Date of Patent: March 17, 2015Assignee: The Procter & Gamble CompanyInventors: Ward William Ostendorf, Patrick Thomas Mather, Pamela Tiffany Wilson, Kazuki Ishida
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Publication number: 20150059995Abstract: A multi-layer through air dried tissue including a first exterior layer comprised substantially of hardwood fibers, an interior layer comprised substantially of softwood fibers, and a second exterior layer comprised substantially of hardwood fibers. The interior layer includes a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.Type: ApplicationFiled: November 6, 2014Publication date: March 5, 2015Inventors: Karthik RAMARATNAM, Byrd Tyler MILLER, IV, Shane Ervin HAYES, James E. SEALEY, II
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Patent number: 8936855Abstract: Provided is a wood fiber board, and a production method thereof, such that the wood fiber board contains no phenolic resin, is simple to produce, and exhibits flexural strength and water resistance comparable to those of wood fiber boards produced by incorporating a phenolic resin. The wood fiber board of the present invention has only wood fibers; a polyacrylamide resin being an amphoteric-ionic resin, which has monomers having cationic groups and monomers having anionic groups at a ratio of 7:3 to 3:7 on a mole ratio basis, and which has a molecular weight ranging from 800,000 to 3,000,000; and cationic paraffin. A method of producing a wood fiber board of the present invention involves preparing a slurry to a solids concentration ranging from 2 to 3 wt % and pH of 3 to 5, and adding only the polyacrylamide resin and paraffin to the slurry.Type: GrantFiled: October 13, 2011Date of Patent: January 20, 2015Assignee: Nichiha CorporationInventors: Makoto Kimuro, Hiromasa Sinkai, Kenji Takeshita
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Publication number: 20150013926Abstract: An improved processes for making fluff pulp sheets mechanically eliminates many of the unwanted fiber-to-fiber bonding (fiber bundles) which may be contained in the sheet to produce consistent and uniform quality fluff pulp. Pulp slurry is deposited on a moving bottom forming wire to form a stock web. Pulp slurry is brought into contact with a moving top forming wire. The stock web is subjected to up and down dewatering creating separately formed layers to reduce fiber-to-fiber bonding. The stock web can be subjected to strong pulsating shear forces as it is being advanced along the bottom forming wire to break a majority of fiber bundles contained in the web. The pulp slurry can be deposited on the bottom forming wire utilizing a headbox with dilution control to selectively adjust the concentration of the pulp slurry. A shoe press can be used to dewater the web after it is subjected to the pulsating shear forces. The web can be dried utilizing conventional drying equipment, such as cylindrical driers.Type: ApplicationFiled: October 2, 2014Publication date: January 15, 2015Inventors: JYRKI T. JAAKKOLA, JAMES E. SEALEY
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Patent number: 8911592Abstract: A multi-ply absorbent sheet of cellulosic fiber includes continuous outer surfaces, and an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network comprising a plurality of pileated fiber enriched regions of a relatively high local basis weight interconnected by way of a plurality of lower local basis weight linking regions whose fiber orientation is biased along the direction between pileated fiber enriched regions, interconnected thereby, and a plurality of fiber-deprived cellules between the fiber enriched regions and the linking regions, also being characterized by a local basis weight lower than that of the fiber enriched regions.Type: GrantFiled: February 22, 2012Date of Patent: December 16, 2014Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
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Publication number: 20140360145Abstract: Provided are a filter medium for a filter, which makes it possible to obtain a filter high in collection efficiency, low in pressure loss and long in filter lifetime, a method for producing the same, and a filter using the filter medium for a filter. A filter medium for a filter is used as a constituent member of a filter and composed of a wet type nonwoven fabric, wherein the filter medium for a filter has a multilayer structure of two or more layers, and there is no interface between the above-mentioned two layers.Type: ApplicationFiled: September 25, 2012Publication date: December 11, 2014Applicants: TEIJIN LIMITED, MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Yuichi Hamada, Mitsutoshi Suzuki, Hiroyuki Ishii, Kenji Inagaki
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Patent number: 8900409Abstract: A web product having at least two plies and having a Basis Weight, BW, value greater than 51.6 gsm and a Dry Bulk, DB, value greater than 15.5 cc/g is disclosed.Type: GrantFiled: January 15, 2014Date of Patent: December 2, 2014Assignee: The Procter & Gamble CompanyInventors: Osman Polat, Jeffrey Glen Sheehan