Patents Examined by Mark Halpern
  • Web substrate having optimized emboss design
    Patent number: 11427969
    Abstract: A web substrate having at least one embossed ply having a surface thereof is disclosed. The surface has surface area comprising at least about 0.2 percent line embossments and a ratio of line embossment area to dot embossment area greater than 1.5.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: August 30, 2022
    Assignee: The Procter & Gamble Company
    Inventors: André Mellin, Kevin Benson McNeil, Thomas Timothy Byrne, Jason Merrill Jones
  • Dry strength composition, its use and method for making of paper, board or the like
    Patent number: 11427965
    Abstract: A dry strength composition for manufacture of paper, board or the like is disclosed. The dry strength composition includes, as a mixture, at least one anionically derivatized polysaccharide, and cationic starch having an amylopectin content ?80 weight-%. The anionically derivatized polysaccharide and the cationic starch provide the composition with a charge density in a range of 0.1-1.5 meq/g, when measured at pH 2.8, and ?0.1-?3 meq/g, preferably ?0.3-?2.5 meq/g, more preferably ?0.5-?2.0 meq/g, when measured as an aqueous solution, at pH 7.0. Further disclosed are a use of the composition and a method for manufacturing paper, board or the like.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 30, 2022
    Assignee: Kemira Oyj
    Inventors: Matti Hietaniemi, Asko Karppi, Jonas Konn
  • Web structural body and manufacturing apparatus thereof
    Patent number: 11427941
    Abstract: A web structural body includes cellulose fibers and a binding material binding the cellulose fibers, and in the web structural body described above, a molten rate of the binding material at a surface of the web structural body is higher than a molten rate of the binding material at a center in a thickness direction of the web structural body.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 30, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Tsukasa Ota
  • Device for the production of nonwoven fabric webs and method for installing such a device
    Patent number: 11421361
    Abstract: A device for the production of nonwoven fabric webs. The device includes a nonwoven production device comprising a supporting structure, and an auxiliary unit comprising at least one liquid tank and a platform arranged on a top side of the auxiliary unit. The nonwoven production device is arranged on the supporting structure in an assembled state. The nonwoven production device and the auxiliary unit are arranged in relation to each other so that, for at least one of assembling, operating, and repairing the nonwoven production device, access to the nonwoven production device is provided from the platform.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 23, 2022
    Assignee: ANDRITZ KUESTERS GMBH
    Inventors: Dennis Latendorf, Robin Stephane, Tomas Noelle
  • Inner liner for a cigarette
    Patent number: 11421386
    Abstract: A moisture-retaining, quality-preserving and aroma-keeping vacuum aluminum-plated inner liner for cigarettes and method of making the inner liner, the inner liner including a raw paper layer, an upper surface of the raw paper layer being provided with a hot melt sealing layer, a water-based sealing layer, a vacuum aluminum-plated layer, and a water-based protective layer, where a lower surface of the raw paper layer is provided with a moisture returning layer and the inner liner further includes a moisture-retaining and aroma-keeping layer disposed on the upper surface or the lower surface of the raw paper layer.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 23, 2022
    Assignee: Guangzhou Huadu Lianhua Packing Material Co., Ltd.
    Inventors: Bifeng Chen, Kanglei Chen
  • Aramid paper coated with aramid nanofibers and a method of preparing the same
    Patent number: 11414817
    Abstract: A method of preparing an aramid paper coated with aramid nanofibers includes the following steps: (1) mixing a meta-aramid fibrid slurry and a chopped meta-aramid fiber slurry, filtering, pressing and drying to obtain a meta-aramid paper; (2) mixing potassium hydroxide, deionized water, dimethyl sulfoxide, and para-aramid nanofibers in a container, and stirring to obtain a para-aramid nanofiber coating solution; and (3) applying the para-aramid nanofiber coating solution to a first side of the meta-aramid paper, washing with deionized water, and drying; applying the para-aramid nanofiber coating solution to a second side of the meta-aramid paper, washing with deionized water, and drying; and hot pressing to obtain the aramid paper coated with aramid nanofibers.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: August 16, 2022
    Assignee: SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Meiyun Zhang, Jiaojun Tan, Bin Yang, Shunxi Song, Jingyi Nie, Xue Jiang
  • Fast-wetting coform fibrous structures
    Patent number: 11408126
    Abstract: Fast-wetting (hydrophilic) coform fibrous structures, more particularly fast-wetting composite fibrous structures, for example dry fast-wetting composite fibrous structures, employing a wet-laid fibrous structure such as a paper web, and a coform fibrous structure, multi-ply fibrous structures, for example multi-ply sanitary tissue products such as multi-ply absorbent products for example multi-ply paper towel products, employing one or more fast-wetting composite fibrous structures, and methods for making same.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 9, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Christopher Michael Young, Steven Lee Barnholtz, Todd Leon Mansfield, Michael Gomer Stelljes
  • Zwitterionic imidazolinium surfactant and use in the manufacture of absorbent paper
    Patent number: 11408127
    Abstract: Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 9, 2022
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Brian S. Hammes
  • Deodorant-paper manufacturing method
    Patent number: 11396727
    Abstract: A deodorant-paper manufacturing method includes: a first step in which belt-like paper stock placed on a wire cloth in a wire part is dehydrated; a second step in which the dehydrated belt-like paper stock is transferred to conveyance means in a press part to be further dehydrated; and a third step in which the dehydrated belt-like paper stock is dried by drying means in a dryer part. Any one of the first to third steps includes a fourth step in which particle-containing liquid having deodorant effect is ejected from ejecting parts. In the fourth step, the ejecting parts are arranged in a line such that the particle-containing liquid is deposited in the width direction of the belt-like paper stock, and the particle-containing liquid is sequentially ejected from the ejecting parts with a predetermined time difference so that unevenness in or damage to fibers in the paper stock does not occur.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: July 26, 2022
    Assignee: CORELEX SHIN-EI CO., LTD.
    Inventor: Satoshi Kurosaki
  • Flame retardant paper
    Patent number: 11390998
    Abstract: A flame retardant paper includes pulp, aluminum hydroxide, guanidine phosphate and guanidine sulfamate, wherein the content of the pulp is 10 to 35% by mass and the content of the aluminum hydroxide is 40 to 70% by mass, and the total content of the guanidine phosphate and the guanidine sulfamate is 0.1 to 10% by mass based on the contents of the flame retardant paper.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 19, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Hideaki Karasaki, Tomoko Takano, Kazuya Nishioka
  • Titanium oxide composite fibers and method for producing same
    Patent number: 11390997
    Abstract: The present invention provides a titanium oxide composite fiber in which titanium oxide is efficiently fixed in fiber, and a method for producing the titanium oxide composite fiber. A composite fiber of the present invention includes: fiber; titanium oxide; and an inorganic binder, at least part of the inorganic binder containing at least one inorganic compound selected from (i) an inorganic salt containing at least one of: at least one metal selected from magnesium, barium, aluminum, copper, iron, and zinc; and silicic acid and (ii) metal particles containing the at least one metal, the titanium oxide being firmly fixed to the fiber via the inorganic binder.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: July 19, 2022
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masatoshi Oishi, Koji Ninagawa, Toru Nakatani, Dai Nagahara, Shisei Goto
  • Layered tissue comprising long, high-coarseness wood pulp fibers
    Patent number: 11384484
    Abstract: The present invention provides multi-layered tissue webs, and tissue product comprising the same, comprising long, high-coarseness wood pulp fibers selectively deposited in one or more outer layers of the multi-layered web. Surprisingly disposing long, high-coarseness wood pulp fibers in one or more outer layers, even in relatively modest amounts, may improve certain product properties, such as durability, without negatively affecting softness. In certain instances, both the softness and durability may be improved by selectively incorporating long, high-coarseness wood pulp fibers in one or more of the outer layers.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 12, 2022
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Thomas Gerard Shannon, Stephen Michael Lindsay, Brent Merrik Thompson, Richard Louis Underhill
  • Method of producing a fibrous product and a fibrous product
    Patent number: 11371188
    Abstract: The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 28, 2022
    Assignee: Paptic Oy
    Inventors: Karita Kinnunen-Raudaskoski, Marja Juvonen, Esa Torniainen, Martin Häggblom, Tuomas Mustonen
  • Heat-sealable barrier paper
    Patent number: 11371189
    Abstract: A heat-sealable barrier paper having a) a carrier substrate having a front side and a back side opposite the front side, b) optionally an interlayer comprising a binder and disposed on the front side of the carrier substrate, c) a first barrier layer comprising a crosslinked polysaccharide and disposed on the front side of the carrier substrate or, if there is an interlayer, on the interlayer, d) a second barrier layer, disposed on the first barrier layer and consisting of or comprising i) an acrylate copolymer and/or ii) a wax based on a vegetable oil, the use of a barrier paper for packaging products, a method for heat-sealing a barrier paper, and to a method for producing a barrier paper.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 28, 2022
    Assignee: MITSUBISHI HITEC PAPER EUROPE GMBH
    Inventors: Lena-Maria Grundl, Nadia El-Karzazi, Dieter Becker, Konstantinos Kalessios, Jochen Schlegel
  • Method for manufacturing a multi-layered paperboard, multi-layered paperboard and composition for use in multi-layered paperboard manufacturing
    Patent number: 11365517
    Abstract: A method for manufacturing a multi-layered paperboard is disclosed, which includes at least two fibrous layers, in which method at least one layer of the multi-layered paperboard is treated by applying an aqueous solution of a first strength component in dissolved form including anionic strength polymer and/or amphoteric strength polymer composition on a surface of layer, and an aqueous solution of a cationic second strength component in dissolved form is added to a fibre stock from which at least one of the fibrous layers joined together is formed.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 21, 2022
    Assignee: Kemira Oyj
    Inventor: Matti Hietaniemi
  • Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine
    Patent number: 11352749
    Abstract: A method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine by mixing of a retention chemical to a fibrous stock flowing in an approach flow system of a fiber web machine by a mixer (200) between the attenuator (16) and the headbox (18).
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 7, 2022
    Assignees: WETEND TECHNOLOGY OY, VALMET TECHNOLOGIES OY
    Inventors: Jouni Matula, Jari Mäkinen, Jussi Matula
  • Fiber body forming method and fiber body forming apparatus
    Patent number: 11346054
    Abstract: A fiber body forming method includes a step of preparing a web which contains fibers and which has a bulk density of 0.09 g/cm3 or more; and a step of applying a liquid containing a binder which binds the fibers together to the web.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 31, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsuya Aoyama, Shinichi Kato, Shigemi Wakabayashi, Kaneo Yoda
  • Laminate having oxygen barrier properties and a method for producing the same
    Patent number: 11346057
    Abstract: The present invention relates to a laminate having oxygen barrier properties, which laminate comprises; a porous fiber based layer comprising nanocellulose and cellulosic fibers wherein said fiber based layer has an air resistance of less than 4000 s/100 ml measured according to ISO5636/6 and a polymer layer attached to at least one side of said fiber based layer to form said laminate. The present invention further relates to a method to produce said laminate and a paper or paperboard product comprising the laminate and the use of the laminate.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: May 31, 2022
    Assignee: Stora Enso OYJ
    Inventors: Esa Saukkonen, Isto Heiskanen, Ville Ribu
  • Nano TiO2-doped anti-ultraviolet para-aramid nano paper and preparation method thereof
    Patent number: 11339538
    Abstract: The disclosure discloses nano TiO2-doped anti-ultraviolet para-aramid nano paper and a preparation method thereof. First, nano TiO2 is selected as an ultraviolet absorbent which has a good absorption effect on ultraviolet rays, and the anti-ultraviolet characteristic of aramid paper-based material can be well improved through addition of nano TiO2. Second, macroscopic para-aramid fiber is dissolved under the action of a DMSO/KOH system, and the surface of the prepared aramid nano fiber is rich in C?O and N—H. This method is simple in process and does not harm the fiber itself, and can effectively improve the mechanical strength, interface binding performance and processability of a base material. The nano TiO2-doped anti-ultraviolet para-aramid nano paper prepared by the disclosure is simple in preparation process, excellent in material property.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 24, 2022
    Assignee: Shaanxi University of Science & Technology
    Inventors: Zhaoqing Lu, Danni Wang, Jingyi Nie, Li Hua, Lianmeng Si, Doudou Ning, Yafang Wang, Shanshan Chen
  • Polymer product for improving retention of hydrophobic internal sizing agents in manufacture of paper or board
    Patent number: 11339539
    Abstract: A method for manufacturing paper or board is disclosed and further disclosed is an internal sizing system for providing improved retention of hydrophobic internal sizing agents. The internal sizing system includes a hydrophobic internal sizing agent as a first component selected from a group consisting of alkenyl succinic anhydride (ASA), alkyl ketene dimer (AKD), rosin sizes and any combination thereof, and a water-soluble polymer product including amphoteric polyacrylamide as a second component, which amphoteric polyacrylamide has neutral or cationic net charge at pH 7, a weight-average molecular weight of 700,000-18,000,000 g/mol and a total ionicity of 4-28 mol-%, where the first component and the second component are provided as separate components or as a combination of the first component and the second component.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: May 24, 2022
    Assignee: Kemira Oyj
    Inventors: Timo Valkealaakso, Simo-Pekka Vanninen, Asko Karppi