Patents Examined by Jose A. Fortuna
  • Patent number: 11408125
    Abstract: A thermoplastic fiber sheet includes at least cellulosic fibers and thermoplastic resin fibers having a softening temperature of 100 to 140° C. A weight ratio of the cellulosic fibers to the thermoplastic resin fibers (the cellulosic fibers: the thermoplastic resin fibers) is 4:6 to 2:8, and porosity is 20 to 70%.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 9, 2022
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Hideki Moriuchi, Hiroshi Kitahara, Masanori Takahata, Masanori Morinaga, Tomoki Furue
  • Patent number: 11408128
    Abstract: A process is provided for applying sizing to a wet laid fibrous sheet that comprises providing an aqueous slurry that comprises cellulose fibers and cellulose ester staple fibers; forming the wet laid fibrous sheet from the slurry; and applying an aqueous sizing composition that comprises one or more sizing agents to the wet laid fibrous sheet. In embodiments, the cellulose ester staple fibers are present in an amount sufficient to permit the sheet to have a higher sizing composition uptake and to impart higher sizing properties to the sheet, compared to a sheet formed from a 100% cellulose fiber slurry, when processed under similar conditions.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 9, 2022
    Assignee: Eastman Chemical Company
    Inventors: Melvin Glenn Mitchell, Charles Stuart Everett, Kenny Randolph Parker
  • Patent number: 11408129
    Abstract: A fibrous structure includes a plurality of discrete wet-formed knuckles extending from a pillow surface of the fibrous structure, wherein the plurality of discrete wet-formed knuckles are arranged in a pattern organized in an X-Y coordinate plane, each of the wet-formed knuckles of the pattern is included within a plurality of rows oriented in an X-direction and a plurality of rows oriented in a Y-direction, and each row in the X-direction is curved in a repeating wave pattern, wherein the repeating wave pattern has an amplitude and a wavelength, and wherein the amplitude is between about 0.75 mm and about 3.0 mm, and the wavelength is between about 25.0 mm and about 125.0 mm.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 9, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Osman Polat, Charles Allen Redd, Kathryn Christian Kien, Anthony Paul Bankemper
  • Patent number: 11401660
    Abstract: Broke pulp in a paper making process is obtained by pulping broke, and the broke pulp is made of fibrillated cellulose fibers and cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, or a cut length of less than 6 mm, or crimped, or non-round with a DPF of less than 3. The broke pulp can be added to the stock preparation zone of a wet laid manufacturing facility and fed through a refiner.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 2, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh
  • Patent number: 11401659
    Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 2, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh
  • Patent number: 11401662
    Abstract: Fibrous structures, for example sanitary tissue products, such as toilet tissue, having one or more neat surfactant components on at least one exterior surface, methods for making same, and methods for removing fecal matter from a user's skin are provided.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 2, 2022
    Assignee: The Procter & Gamble Company
    Inventors: LaTisha Evette Salaam-Zayid, Jose Enrique Betancourt
  • Patent number: 11396726
    Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many the desired benefits. The present invention also relates to a filter media for air filtration comprising cellulose fiber and a staple fiber; wherein said staple filter comprises cellulose ester; wherein said air permeability is higher for a given mean pore size as compared to a filtration that comprises 100% cellulose.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 26, 2022
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Mounir Izallalen, Koushik Ghosh
  • Patent number: 11395573
    Abstract: A water-disintegrable sheet in which a base paper sheet is impregnated with an aqueous agent is provided. The base paper sheet has a weight per unit area of 30 to 150 gsm, and includes a water-soluble binder and cellulose nanofibers. The aqueous agent includes a cross-linking agent which cross-links with a water-soluble binder.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 26, 2022
    Assignee: DAIO PAPER CORPORATION
    Inventor: Kosuke Yamazaki
  • Patent number: 11390999
    Abstract: A method of producing a web of extensible fibrous material includes passing a web of fibrous material between a cylinder of rigid material having, on the side surface, a plurality of incisions running circumferentially, and a web having an outer layer of elastically compressible material kept locally pressed, at a pressing area, against the side surface of the cylinder, the cylinder and the web being configured and arranged so that the web adheres to the cylinder over a portion located downstream of the pressing area, the web has a portion downstream of the pressing area with a concavity substantially opposite to that of a portion of the web upstream of the pressing area, and the peripheral speeds of the cylinder and the web in the pressing area are substantially equal.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: July 19, 2022
    Inventor: Giorgio Trani
  • Patent number: 11391001
    Abstract: The present document discloses a tool or tool part for use in a process of molding a product from a pulp slurry. The tool or tool part comprises a self-supporting tool wall portion having a product face, for contacting the product, and a back face on the other side of the wall relative to the product face. The tool wall portion presenting pores, which are provided by a plurality of channels extending through the tool wall portion, from the product face to the back face. The channels are straight or curved with no more than one point of inflection.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 19, 2022
    Assignee: Celwise AB
    Inventors: John Andersson, Udo Vogt, David A. Pierce
  • Patent number: 11390991
    Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many the desired benefits. This invention also relates to a process to produce a wet laid article in a paper mill, said process comprising adding cellulose ester staple fiber to a hydropulper zone, and/or to a refining zone, and/or after the refining zone wherein said paper mill process is not substantially modified to allow for said adding of said cellulose ester.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 19, 2022
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
  • Patent number: 11384482
    Abstract: A web manufacturing apparatus includes a transport section configured to transport a web containing fiber, a web humidifier configured to humidify the web, and a control section configured to control operation of the transport section and the web humidifier. When transportation of the web by the transport section is stopped, the control section causes the transport section to recommence transportation of the web after the web is humidified by the web humidifier. The control section may also cause the web humidifier to stop humidification of the web after the web humidifier starts humidification of the web and a predetermined duration elapses.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 12, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Isao Inaba, Masahide Nakamura, Kazuma Miyazawa, Yuki Oguchi, Isamu Arai
  • Patent number: 11384483
    Abstract: The present invention is directed to a non-moisturizing high-grade type tissue paper having excellent softness wherein the polyol applied to the two-ply tissue paper is not applied by external addition. In various embodiments, the tissue paper has a basis weight per ply of 14.0 to 17.0 g/m2, a paper thickness for two plies of 160 to 220 ?m, and a water content of 4.0 to 9.0% by mass, contains 0.15 to 0.45% by mass of an oily component to be extracted with diethyl ether, and has a bending rigidity of less than 0.006 gf·cm/cm in CD (cross direction) and a bending recovery force of less than 0.005 gf·cm/cm in CD.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 12, 2022
    Assignees: DAIO PAPER CORPORATION, TOHOKU UNIVERSITY
    Inventors: Sachiko Takahashi, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata
  • Patent number: 11371191
    Abstract: Disclosed are multi-ply tissue products comprising a non-crosslinked binder that are durable and dispersible. The products generally have a Slosh time less than 2 minutes, such as less than about 60 seconds, such as less than about 45 seconds. Surprisingly, the foregoing Slosh times are achieved despite the tissue products having relatively high cross-machine direction (CD) wet tensile strength, such as greater than about 100 g/3?. Typically, increasing wet tensile strength, particularly wet CD tensile strength, negatively effects dispersability and increases Slosh time. Despite this trend, the present invention surprisingly provides a tissue product having a relatively high degree of wet strength and good dispersability.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: June 28, 2022
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kevin Joseph Vogt, Mark William Sachs, Erin Ann McCormick, Devon Gaynelle Curley, Sara Jane Wille Stabelfeldt, Nathan John Vogel, Christopher Steven LeCount
  • Patent number: 11351491
    Abstract: A filter media having lignite-derived activated carbon, polyacrylic acid (PAA), a commercially available copper-zinc alloy, and polydiallyldimethylammonium chloride (PolyDADMAC) or Luviquat®, which is Poly[(3-methyl-1-vinylimidazolium chloride)-co-(1-vinylpyrrolidone)], combined and used as suitable replacement for TOG bituminous coal-based activated carbon, silver, and PolyDADMAC. Functional groups in lignite-based activated carbon interact with the polyacrylic acid. Functional groups such as calcium, iron, or aluminum oxide/hydroxide of lignite-based activated carbon interact with PAA, and help hold the PolyDADMAC in place. The additional presence of a copper-zinc alloy enhances the filter anti-microbiological performance.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: June 7, 2022
    Assignee: KX Technologies LLC
    Inventors: Jinwen Wang, Meedia Kareem, Rezan Kareem, William Li, Bruce E. Taylor, Carol DeLandra, Frank A. Brigano
  • Patent number: 11346058
    Abstract: A multi-ply tissue paper product includes at least four plies made of tissue paper base-sheet or non-woven. Two inner plies are positioned between a first outer ply on one side and a second outer ply on another side. The two inner plies are flat plies. The first and second outer plies include a micro-embossing pattern. Only one of the outer plies further includes a décor embossing pattern. The multi-ply tissue paper product is configured to provide improved thickness and strength parameters with less use of paper fiber material.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 31, 2022
    Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAG
    Inventors: Emilie Pleyber, Sebastien Jeannot, Donald Barredo, Yves Enggasser, Frederic Roesch, Steve Baltase
  • Patent number: 11337566
    Abstract: Toilet paper includes at least two sheets on which embossments are formed and that are joined together in a nested manner. The area of a top part of an embossed protrusion of each of the embossments is between 0.8 mm2 and 1.5 mm2, and the area percentage of top parts of embossed protrusions of the embossments is between 5% and 10%.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 24, 2022
    Assignee: DAIO PAPER CORPORATION
    Inventors: Shohei Yoshida, Noritada Tomioka
  • Patent number: 11339537
    Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. This invention also relates to a biodegradable bag.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 24, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
  • Patent number: 11339532
    Abstract: Methods of forming crosslinked cellulose include mixing a crosslinking agent with cellulose mat fiber fragments composed of hydrogen-bonded cellulose fibers and having a solids content of about 45-95% to form a substantially homogenous mixture of non-crosslinked, individualized cellulose fibers, drying the resulting mixture to 85-100% solids, then curing the dried mixture under conditions effective to crosslink the cellulose fibers. Some of such methods may include fragmenting a cellulose fiber mat to form the mat fragments. Systems include a mixing unit (such as a high-consistency mixer) configured to form, from the mat fragments and a crosslinking agent, a substantially homogenous mixture of non-crosslinked, individualized cellulose fibers and crosslinking agent, at ambient conditions, a drying unit to dry the substantially homogenous mixture to a consistency of 85-100%, and a curing unit and to cure the crosslinking agent to form dried and cured crosslinked cellulose fibers.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 24, 2022
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: Charles E. Miller, Alan D. Lovas
  • Patent number: 11332888
    Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to composition, process, wet laid product, or articles exhibiting any one of many desired benefits. The invention also relates to a composition comprising cellulose fiber and a staple fiber exhibiting improved texturing.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 17, 2022
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Mounir Izallalen, Koushik Ghosh