Synthetic (including Chemically Modified Cellulose) Patents (Class 162/146)
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Patent number: 11940029Abstract: A brake pad includes a friction material and a backing plate which are coupled to each other. An apparatus for manufacturing the brake pad includes a forming device forming friction material powder in the form of the friction material and attaching the formed friction material to the backing plate in a forming process, a quality stabilization device heating and pressing the friction material, and a heat treatment unit heating the brake pad at a predetermined temperature.Type: GrantFiled: August 3, 2021Date of Patent: March 26, 2024Assignee: KB AUTOSYS CO., LTDInventor: Yong Woong Kim
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Patent number: 11932994Abstract: Tissue paper of the disclosure exhibits advantageous softness and bulk at a basis weight less than that of basis weights found in currently available commercial tissue products, while delivering adequate strength for machine runability and consumer usage. This tissue is a lightweight paper that comprises a fiber core with up to 60% mechanically fibrillated fibers and a retention or drainage aid such as a cationic polyacrylamide polymer that facilitates drainage, softness, and bulk. This approach can reduce the fiber content of tissue products significantly while delivering the desired strength and other critical properties.Type: GrantFiled: November 27, 2019Date of Patent: March 19, 2024Assignee: North Carolina State UniversityInventors: Ronalds W. Gonzalez, Franklin J. Zambrano, Hasan Jameel, Richard A. Venditti, Lokendra Pal
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Patent number: 11931696Abstract: A gas separation element comprising a membrane sheet and a permeate spacer, wherein the membrane sheet comprises a porous support and a discriminating layer, CHARACTERISED IN THAT: (a) the permeate spacer has an open space volume of at least 0.0004 m3/m2; and (b) the membrane sheet has an aspect ratio of at least 1.5.Type: GrantFiled: August 28, 2020Date of Patent: March 19, 2024Assignees: Fujifilm Manufacturing Europe B.V., Fujifilm CorporationInventors: Anton Van Der Pluijm, Petrus Henricus Maria Van Kessel, Shigehide Itoh, Yujiro Itami, Davide Bocciardo
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Patent number: 11920297Abstract: The present invention relates to a method for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with an organic acid or salt thereof. Fibrous materials as such are also provided. The present technology allows improved Water Vapor Transmission Rates (WVTR) for the fibrous material, while operating on an industrial scale.Type: GrantFiled: December 20, 2019Date of Patent: March 5, 2024Assignee: Stora Enso OYJInventors: Isto Heiskanen, Katja Lyytikäinen, Otto Nylén, Kaj Backfolk
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Patent number: 11884563Abstract: A composition and method are disclosed for forming lignin-containing floccules from dissolved lignin, lignin nanoparticles, lignin colloids, or lignin-containing cellulose nanofibers. The floccules may be used to clean oil-contaminated materials such as oil-contaminated plastics or oil-contaminated water. The polymers and oil may then be recovered for further use, without requiring organic solvents.Type: GrantFiled: March 9, 2022Date of Patent: January 30, 2024Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Qinglin Wu, Pawan Kumar Mishra
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Patent number: 11851820Abstract: Paper with a grammage of 10-100 g/m2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibrid or pulp. The paper shows high strength and other attractive properties.Type: GrantFiled: January 20, 2023Date of Patent: December 26, 2023Assignee: TEIJIN ARAMID B.V.Inventors: Fresia Alvarado Chacon, Richard Visser, Ernst Michael Winkler
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Patent number: 11821140Abstract: Fibrids comprising poly alpha-1,3-glucan or surface-modified poly alpha-1,3-glucan were produced and characterized. Applications and products for using these fibrids include emulsification, viscosity modification, paper and paper making, personal care products, pharmaceutical products, food products, paper coatings, and composites. Examples of surface-modified poly alpha-1,3-glucan fibrids include those with a positive surface charge.Type: GrantFiled: September 10, 2021Date of Patent: November 21, 2023Assignee: NUTRITION & BIOSCIENCES USA 4, INC.Inventors: Natnael Behabtu, Jayme L. Paullin, Mikhail R. Levit
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Patent number: 11821141Abstract: An airlaid substrate includes at least one bicomponent fiber having a first region and a second region. The first region includes polypropylene and the second includes a blend of an ethylene-base polymer and an ethylene acid copolymer. The ethylene-base polymer has a density from 0.920 g/cm3 to 0.970 g/cm3 and a melt index (I2) from 0.5 g/10 min to 150 g/10 min. The ethylene acid copolymer includes the polymerized reaction product of from 60 wt % to 99 wt % ethylene monomer and from 1 wt % to 40 wt % unsaturated dicarboxylic acid comonomer, based on the total weight of the monomers in the ethylene acid copolymer. The ethylene acid copolymer having a melt index (I2) from 0.5 g/10 min to 500 g/10 min.Type: GrantFiled: December 10, 2018Date of Patent: November 21, 2023Assignee: Dow Global Technologies LLCInventors: Lihua Chen, Phil Xu, Shenglong Chen
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Patent number: 11781045Abstract: Methods for upcycling crosslinked sodium polyacrylate to pressure sensitive adhesives via (a) mechanochemical chain-shortening and esterification or (b) esterifying with high conversion with a Fischer esterification process are disclosed. Also disclosed is a pressure sensitive adhesive prepared by the disclosed methods and articles comprising the pressure sensitive adhesive, including, but not limited to, pressure sensitive tape, a bandage, a label, note pads, a decal, a stamp, an envelope, a sticker, packaging, automobile trim, and a film.Type: GrantFiled: August 24, 2020Date of Patent: October 10, 2023Assignee: The Procter & Gamble CompanyInventors: Dimitris Ioannis Collias, Paul Zimmerman, Paul Takunda Chazovachii, Michael Robo, Anne McNeil, Neil Marsh, Martin Ian James
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Patent number: 11739240Abstract: Methods for upcycling crosslinked sodium polyacrylate to pressure sensitive adhesives via (a) mechanochemical chain-shortening and esterification or (b) esterifying with high conversion with a Fischer esterification process are disclosed. Also disclosed is a pressure sensitive adhesive prepared by the disclosed methods and articles comprising the pressure sensitive adhesive, including, but not limited to, pressure sensitive tape, a bandage, a label, note pads, a decal, a stamp, an envelope, a sticker, packaging, automobile trim, and a film.Type: GrantFiled: August 24, 2020Date of Patent: August 29, 2023Assignee: The Procter & Gamble CompanyInventors: Dimitris Ioannis Collias, Paul Zimmerman, Paul Takunda Chazovachii, Michael Robo, Anne McNeil, Neil Marsh, Martin Ian James
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Patent number: 11732418Abstract: The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.Type: GrantFiled: June 21, 2022Date of Patent: August 22, 2023Assignee: Smart Planet Technologies, Inc.Inventor: Christopher R. Tilton
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Patent number: 11686048Abstract: An aramid-based paper comprising at least 90 wt. % of aramid material, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, calculated on the total amount of aramid material, wherein the paper includes 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE). It has been found that the incorporation of 0.1-10 wt. % of polyamido-amine epichlorohydrin (PAE) into an aramid-based paper including at least 90 wt. % of aramid material calculated on the weight of the paper not including the PAE, the aramid material including at least one of aramid shortcut and aramid fibrid, the paper including at most 40 wt. % aramid pulp, leads to a surprising improvement of the z-strength and the tear strength of the paper.Type: GrantFiled: May 27, 2019Date of Patent: June 27, 2023Assignee: TEIJIN ARAMID B.V.Inventors: Antonius J. J. Hendriks, Yen Vu, Ernst Michael Winkler, Jan-Cees Tiecken
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Patent number: 11685096Abstract: Disclosed is a method for the manufacture of fibrous yarn including the steps, where an aqueous suspension including fibers and at least one rheology modifier is provided, followed by directing the suspension through at least one nozzle, to form at least one yarn, and then dewatering the yarn.Type: GrantFiled: September 11, 2020Date of Patent: June 27, 2023Assignee: SPINNOVA OYInventors: Juha Salmela, Harri Kiiskinen, Antti Oksanen
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Patent number: 11661688Abstract: The invention relates to a nonwoven fabric material having sufficient strength to be used in a pre-moistened state but also having dispersibility properties which allow the product to be flushed. The material comprises at least two nonwoven webs, at least one of which is hydroentangled. Each of the individual webs comprise 50%-95% wood pulp and 5%-50% of short cut man-made fibers and/or natural fibers and has a basis weight of 20-100 gsm. After forming the webs, the two nonwoven webs are dried and then joined together by particle binders through size press or spraying. The particle binder joined webs separate into individual webs after flushing due to the breakage of particle binder-nonwoven hydrogen bond which makes the material highly dispersible.Type: GrantFiled: February 8, 2018Date of Patent: May 30, 2023Assignee: Suominen OyjInventor: Avinav G. Nandgaonkar
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Patent number: 11649588Abstract: Paper with a grammage of 10-100 g/m2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibrid or pulp. The paper shows high strength and other attractive properties.Type: GrantFiled: July 19, 2022Date of Patent: May 16, 2023Assignee: TEIJIN ARAMID B.V.Inventors: Fresia Alvarado Chacon, Richard Visser, Ernst Michael Winkler
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Patent number: 11643762Abstract: The present invention provides a knitted fabric with leather fibers comprising a ground yarn layer and a face yarn layer directly connected with the ground yarn layer through double knitting. The ground yarn layer includes a plurality of first yarn loops, each of the first yarn loops is formed by a plurality of ground yarns. The face yarn layer includes a plurality of second yarn loops, each of the second yarn loops is formed by at least one face yarn attached with the leather fibers obtained from a piece of leather by a pulverization operation. A course ratio of the face yarn layer to the ground yarn layer is in a range between 1:1.25 and 1:4. Accordingly, the invention provides an innovative knitted fabric and solves the problem that the leather cannot be recycled after being discarded.Type: GrantFiled: November 18, 2020Date of Patent: May 9, 2023Assignee: ZHONGSHAN YOURWAY FASHION TECHNOLOGY LTD.Inventor: Chin-Hsun Hsiao
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Patent number: 11633935Abstract: Described herein is an stain and sag resistant acoustic building panel comprising a porous body formed from building material and latex binder, wherein the building material may include fibers and filler and at one of the building materials has been pre-treated with a charge-modifying component, thereby enhancing the sag-resistance of the building panel.Type: GrantFiled: March 9, 2020Date of Patent: April 25, 2023Assignee: AWI Licensing LLCInventors: James D. Pape, Gourish Sirdeshpande, Joanne Lefever, Kimberly Diffenbaugh, Jere Myers, John Felegi, Jr.
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Patent number: 11591729Abstract: Disclosed herein are nonwoven webs comprising a nonwoven substrate and a binder comprising a polysaccharide. In one embodiment, the polysaccharide can comprise poly alpha-1,3-glucan, a poly alpha-1,3-glucan ether compound as disclosed herein, a poly alpha-1,3-glucan ester compound as disclosed herein, a graft copolymer comprising a backbone comprising dextran and poly alpha-1,3-glucan side chains, a crosslinked graft copolymer comprising a backbone comprising dextran and poly alpha-1,3-glucan chains, or a mixture thereof. Also disclosed are articles comprising the nonwoven webs, and methods of making the nonwoven webs.Type: GrantFiled: September 11, 2018Date of Patent: February 28, 2023Assignee: NUTRITION & BIOSCIENCES USA 4, INC.Inventors: Natnael Behabtu, Monica Harvey, Christian Peter Lenges, Ian Robert Beardsall
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Patent number: 11512434Abstract: A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.Type: GrantFiled: July 15, 2019Date of Patent: November 29, 2022Assignee: Paptic OyInventors: Karita Kinnunen-Raudaskoski, Martin Häggblom
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Patent number: 11512433Abstract: A wet laid process includes a method for making paper in which a composition containing co-refined cellulose fibers and cellulose ester fibers made into a thick stock composition in a machine chest, the thick stock is fed to a cleaning/screening zone through a device that regulates the flow rate of thick stock, the consistency of the thick stock fed to the screening/cleaning zone is reduced to form a thin stock composition; the thin stock composition is subjected to a process for cleaning the thin stock and feeding the cleaned thin stock through screens to form a cleaned and screened thin stock composition, and the cleaned and screened thin stock composition is fed to a headbox.Type: GrantFiled: July 26, 2019Date of Patent: November 29, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11505769Abstract: A wipe article includes a substrate, a cationic coating disposed on a surface of the substrate, distributed throughout the substrate, or both. The cationic coating contains a guanidinyl-containing polymer that is crosslinked and bound to the substrate. The substrate includes sponge, nonwoven fabric, or woven fabric. The wipes are useful for removing microorganisms from a microorganism-contaminated surface and also for reducing re-contamination of the cleaned surface or transfer to another surface of the removed microorganisms.Type: GrantFiled: October 21, 2020Date of Patent: November 22, 2022Assignee: 3M Innovative Properties CompanyInventors: Steven P. Swanson, Jerald K. Rasmussen, George W. Griesgraber, Andrew W. Vail, Andrew S. Waller
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Nanofibrillated cellulose ply bonding agent or adhesive and multi-ply absorbent sheet made therewith
Patent number: 11492761Abstract: A ply-bonding agent or adhesive composition characterized by a viscosity and a surface tension for the manufacture of paper tissue and paper towel, includes: (a) water; (b) nanofibrillated cellulose; and (c) one or more modifiers effective to modify either or both of (i) the viscosity of the composition or (ii) the surface tension of the composition, wherein the one or more additional modifiers are selected from the group consisting of components (iii), (iv), (v), (vi), (vii) or (viii), wherein: (iii) is PVOH and a viscosity modifier; (iv) is a viscosity modifier; (v) is a viscosity modifier and a surface tension modifier other than PVOH; (vi) is a water-soluble cellulose derivative; (vii) is a water soluble polyol; and (viii) is a surface tension modifier other than PVOH. The compositions are particularly useful for ply-bonding multi-ply absorbent sheet when the plies are treated with debonder.Type: GrantFiled: November 12, 2020Date of Patent: November 8, 2022Assignee: GPCP IP Holdings LLCInventors: Zhiying Yu, Siddharth S. Vaijapurkar, Daniel W. Sumnicht -
Patent number: 11427962Abstract: Paper with a grammage of 10-100 g/m2 including at least 20 wt. % of microfilaments and at least 20 wt. % of a non-resinous binder, the microfilaments having an average filament length in the range of 2-25 mm and titer less than 1.3 dtex, the non-resinous binder comprising at least one of fibril or pulp. The paper shows high strength and other attractive properties.Type: GrantFiled: December 23, 2011Date of Patent: August 30, 2022Assignee: TEIJIN ARAMID B.V.Inventors: Fresia Alvarado Chacon, Richard Visser, Ernst Michael Winkler
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Patent number: 11401362Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 40 mol-% to 99 mol-% of repeating units according to Formula (1) (b) from 0.01 mol-% to 5 mol-% crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; (c) from 0.99 mol-% to 59.99 mol-% of repeating neutral structural units; wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.Type: GrantFiled: December 6, 2017Date of Patent: August 2, 2022Assignee: CLARIANT INTERNATIONAL LTDInventors: Dirk Fischer, Katharina Berz, Gundula Starkulla
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Patent number: 11384479Abstract: The present invention refers to a method for improving the sharpness and stability of prints by digital printing on hair fabrics and a textile product obtained by the method, which is aimed at solving the problem of capturing a predetermined digital image on a fabric of hair, where the image has characteristics of definition, contrast and durability of the print without neglecting or affecting the texture and joints of the tissue on which it is shaped. Preferably without intending to limit the scope of the invention, the woven material can be bedding such as blankets, quilts and the like, clothing, woven items for personal use, among others made of hair fabrics.Type: GrantFiled: March 11, 2020Date of Patent: July 12, 2022Assignee: Grupo Textil Providencia, S.A. de C.V.Inventor: Rafael Enrique Cendales Miguez
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Patent number: 11339529Abstract: The present invention aims to provide cellulose fibers covered by inorganic particles on the fiber surface. According to the present invention, complexes of a cellulose fiber and inorganic particles wherein 15% or more of the surface of the cellulose fiber is covered by the inorganic particles can be obtained.Type: GrantFiled: September 21, 2016Date of Patent: May 24, 2022Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Moe Fukuoka, Toru Nakatani, Shisei Goto, Masatoshi Oishi, Hiroaki Noguchi
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Patent number: 11332885Abstract: 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: GrantFiled: July 26, 2019Date of Patent: May 17, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11319672Abstract: The present invention relates to a method for production of product comprising a first ply, the method comprising the steps of: providing a fibrous suspension comprising fibers; providing said fibrous suspension to a porous medium to form a substrate comprising fibers; providing a first additive suspension comprising a first strengthening agent, wherein the first strengthening agent is microfibrillated cellulose; providing a second additive suspension comprising at least one retention agent and/or at least one drainage agent; dewatering said substrate on said porous medium; performing additive addition to said substrate during said dewatering of said substrate on said porous medium, wherein the additive addition is performed when the substrate has a dry content of less than 20 weight-%, preferably less than 10 weight-%, most preferably less than 7 weight-%, and wherein the additive addition comprises adding at least a layer of said first additive suspension and a layer of said second additive suspension to saType: GrantFiled: February 25, 2019Date of Patent: May 3, 2022Assignee: Stora Enso OYJInventors: Kaj Backfolk, Isto Heiskanen, Esa Saukkonen
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Patent number: 11274720Abstract: Asbestos-free organic friction material, in particular for producing brake pads and shoes for vehicles made up of a composition or mixture having a fibrous base, a filler, and an organic binder. The composition is completely free of copper and copper compounds or alloys and includes in the fibrous base, together with inorganic and/or organic fibers, from 1% to 10% by volume, calculated relative to the total volume of the composition, of stainless steel fibers.Type: GrantFiled: August 7, 2013Date of Patent: March 15, 2022Inventor: Flavio Trombotto
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Patent number: 11274396Abstract: In a method for producing nanofibrillar cellulose, cellulose based fibre material, in which internal bonds in cellulose fibres have been weakened by 5 preliminary modification of cellulose, is subjected to disintegration treatment in form of pulp comprising fibres and liquid. The fibre material is supplied at a consistency higher than 10 wt-%, preferably at least 15 wt-%, to a disintegration treatment where fibrils are detached from the fibre material by joint effect of repeated impacts to the fibre material by fast moving 10 successive elements and the weakened internal bonds of the cellulose fibres. The nanofibrillar cellulose is withdrawn from the disintegration treatment at dry matter which is equal or higher than the consistency of the fibre material.Type: GrantFiled: May 13, 2020Date of Patent: March 15, 2022Assignee: UPM-KYMMENE CORPORATIONInventors: Markus Nuopponen, Juha Tamper, Isko Kajanto
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Patent number: 11207624Abstract: A high performance media for filtration and other applications uses specially designed binder fibers, wherein the filter media uses higher strength binder fibers to provide the media with high efficiency, high permeability, and high dirt holding capacity while also providing higher strength and stability during process and use.Type: GrantFiled: July 31, 2018Date of Patent: December 28, 2021Inventor: Qiong Gao
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Patent number: 11186952Abstract: A composition in accordance with an aspect of the present invention includes: composite fibers composed of inorganic particles and fibers; and at least one of (i) different-type inorganic particles which are different in type from the inorganic particles, (ii) different-type fibers which are different in type from the fibers, and (iii) organic particles.Type: GrantFiled: February 9, 2018Date of Patent: November 30, 2021Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Masatoshi Oishi, Naoyuki Sugawara, Shisei Goto
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Patent number: 11180876Abstract: A thermally bonded filtration media that can be used in high temperature conditions in the absence of any loss of fiber through thermal effects or mechanical impact on the fiber components is disclosed. The filter media can be manufactured and used in a filter unit or structure, can be placed in a stream of removable fluid, and can remove a particulate load from the mobile stream at an increased temperature range. The combination of bi-component fiber, other filter media fiber, and other filtration additives provides an improved filtration media having unique properties in high temperature, high performance applications.Type: GrantFiled: March 16, 2012Date of Patent: November 23, 2021Assignee: Donaldson Company, Inc.Inventors: Daniel Little, Robert M. Rogers, Derek O. Jones, Keh B. Dema
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Patent number: 11155966Abstract: A hydrolytic sheet is obtained by impregnating a base paper sheet with an aqueous agent. The base paper sheet has a weight per unit area of 30 to 150 gsm and includes a water-soluble binder. The aqueous agent includes a cross-linking agent which cross-links with the water-soluble binder and cellulose nanofiber.Type: GrantFiled: January 26, 2018Date of Patent: October 26, 2021Assignee: DAIO PAPER CORPORATIONInventors: Kosuke Yamazaki, Shinpei Mukoyama
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Patent number: 11131064Abstract: The present invention provides a preparation method of aramid fiber far-infrared emitting paper. In the present invention, para-aramid chopped fiber and para-aramid pulp fiber are used as paper base functional materials with excellent characteristics of high specific strength and high specific stiffness. In addition, the para-aramid chopped fiber and the para-aramid pulp fiber can form a paper material with pores and porous channels, and carbon nanotubes are embedded into the structural pores and porous channels of the paper material. Therefore, the aramid fiber far-infrared emitting paper has better molding quality and composite performance. Results of embodiments indicate that: A far-infrared wavelength emitted by the aramid fiber far-infrared emitting paper provided in the present invention is 4 ?m to 20 ?m, a main frequency band thereof is approximately 10 ?m, and far-infrared conversion efficiency is up to 99%; and the aramid fiber far-infrared emitting paper has tensile strength of 0.12 KN/mm2 to 0.Type: GrantFiled: August 22, 2018Date of Patent: September 28, 2021Assignee: NANOCARBON CO., LTD.Inventors: Xiaogang Sun, Dianmo Zheng, Manyuan Cai, Yanyan Nie, Long Chen, Hezheng Pan
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Patent number: 11124920Abstract: A method of making a tissue basesheet includes: (a) forming a nascent web from an aqueous furnish of papermaking fiber; (b) applying an aqueous composition of nanofibrillar cellulose to a surface of the nascent web; and (c) drying the nascent web to provide the tissue basesheet. Typically the basesheet is constructed with a tissue substrate of cellulosic papermaking fiber having applied to a surface thereof a layer of nanofibrillar cellulose, the tissue substrate having a basis weight of from 15 g/m2 to 30 g/m2 and the layer of nanofibrillar cellulose having a coatweight of from 0.25 g/m2 to 3 g/m2. The product may be incorporated into 2-ply or 3-ply bath tissue.Type: GrantFiled: August 13, 2020Date of Patent: September 21, 2021Assignee: GPCP IP Holdings LLCInventor: Carlos L. Salas Araujo
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Patent number: 11111976Abstract: The present invention relates to a method and an apparatus for manufacturing a brake pad, which are configured to stabilize quality of the brake pad. The present invention provides a method of manufacturing a brake pad including a friction material and a backing plate which are coupled to each other, the method including: a preliminary process of preparing friction material powder and the backing plate; a forming process of forming the friction material powder in the form of the friction material and attaching the friction material to one surface of the backing plate; a quality stabilization process of heating and pressing the friction material after the forming process is completed; a heat treatment process of heating the brake pad at a predetermined temperature after the quality stabilization process is completed; and a grinding process of grinding the friction material.Type: GrantFiled: November 12, 2018Date of Patent: September 7, 2021Assignee: KB AUTOSYS CO., LTDInventor: Yong Woong Kim
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Patent number: 11078626Abstract: A method for forming a thermoplastic composite material in a papermaking machine, wherein the method comprises the steps of: forming an aqueous fiber material suspension; bringing said fiber suspension in contact with at least one additive, said additive being introduced into said fiber suspension, whereby said additive reacts to form a precipitation product onto or into the fibers, thereby forming an intermediate suspension, introducing, after the formation of the intermediate suspension, a plastic material into said intermediate suspension, thereby forming a plastic fiber composite suspension.Type: GrantFiled: May 6, 2015Date of Patent: August 3, 2021Assignee: Stora Enso OYJInventor: Kaj Backfolk
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Patent number: 10883228Abstract: A method of making a tissue or paper towel product including forming two or more multi-layered webs of cellulosic fibers by a papermaking process using a structured fabric, the papermaking process comprising a step of adding a cross-linker to a pulp slurry comprising the cellulosic fibers so that at least some of the cellulosic fibers are cross-linked within the pulp slurry, and laminating the two or more multi-layered webs together so as to form a multi-ply product, each ply of the multi-ply product comprising cross-linked fibers as a percentage of the total fiber mix of the ply.Type: GrantFiled: April 24, 2018Date of Patent: January 5, 2021Assignee: STRUCTURED I, LLCInventors: James E. Bradbury, Dustin Ziegelman, James E. Sealey, II, Byrd Tyler Miller, IV
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Patent number: 10830296Abstract: The present application discloses a ceramic preform, a method of making a ceramic preform, a MMC comprising a ceramic preform, and a method of making a MMC. The method of making a ceramic preform generally comprises preparing reinforcing fibers, preparing a ceramic compound, and forming the compound into a desired shape to create the ceramic preform. In certain embodiments, the ceramic compound is formed as either a disc or a ring for use in a brake disc metal matrix composite. The metal matrix composite generally comprises the ceramic preform infiltrated with a molten metal to form the brake disc metal matrix composite. The method of making the metal matrix composite generally comprises heating the ceramic preform, placing the ceramic preform in a mold cavity of a die cast mold, and introducing molten metal into the mold cavity to infiltrate the ceramic preform to form the brake disc metal matrix composite.Type: GrantFiled: April 21, 2017Date of Patent: November 10, 2020Assignee: INTELLECTUAL PROPERTY HOLDINGS, LLCInventors: Dan T. Moore, Evelyn M. Deliso, Joseph B. Richey, III, Ryan G. Sarkisian, Tongzhai Gao, Andrew Dorman
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Patent number: 10767311Abstract: A fibrous substrate material for producing a porous coating base paper or prepreg comprises a planar impregnatable structure made of cellulose fibers, which contains at least one pigment species and optionally contains further additives conventional for paper. The cellulose fibers contain a proportion of 1 to 20 wt.-% of nanofibrillated cellulose (NFC). A method for producing the fibrous substrate material comprises the steps of: providing an aqueous suspension containing a cellulose containing material and an admixture of said pigment species and, optionally, further additives conventional for paper, sheet forming, drying. The cellulose containing material contains a proportion of 1 to 20 wt.-% of NFC with a specific surface (SSA) of at least 125 m2/g.Type: GrantFiled: June 3, 2016Date of Patent: September 8, 2020Assignees: Schattdecor AG, Factum Consult GmbHInventors: Dieter Walesch, Tanja Zimmermann, Gilberto Siqueira, Sebastien Josset
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Patent number: 10694813Abstract: The invention aims to provide a shoe sole member capable of achieving comfort when using shoes and exhibiting excellent shape-recovering properties after using the shoes. Provided is a shoe sole member formed using a polymer foam, and the polymer foam contains fibers dispersed therein.Type: GrantFiled: May 1, 2013Date of Patent: June 30, 2020Assignee: ASICS CORPORATIONInventor: Junichiro Tateishi
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Patent number: 10646386Abstract: Provided is a method for efficiently recovering pulp fiber from used hygiene products that include pulp fiber and a polymer absorbent. This method is characterized by including a step for introducing the used hygiene product into a treatment tank in which an aqueous solution with ozone dissolved therein has been introduced, and a step for treating the used hygiene product while infusing water into the treatment tank at a first flow rate, extracting the aqueous solution from the treatment tank at a second flow rate and introducing a gas containing ozone into the aqueous solution in the treatment tank, thereby decomposing the polymer absorbent, lowering the molecular weight thereof, and making the same dissolvable.Type: GrantFiled: October 24, 2016Date of Patent: May 12, 2020Assignee: UNICHARM CORPORATIONInventors: Takayoshi Konishi, Toshio Hiraoka, Noritomo Kameda, Hideaki Ichiura
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Patent number: 10563352Abstract: A scalable, energy efficient process for preparing cellulose nanofibers is disclosed. The process employs a depolymerizing treatment with one or both of: (a) a relatively high charge of ozone under conditions that promote the formation of free radicals to chemically depolymerize the cellulose fiber cell wall and interfiber bonds; or (b) a cellulase enzyme. Depolymerization may be estimated by pulp viscosity changes. The depolymerizing treatment is followed by or concurrent with mechanical comminution of the treated fibers, the comminution being done in any of several mechanical comminuting devices, the amount of energy savings varying depending on the type of comminuting system and the treatment conditions. Comminution may be carried out to any of several endpoint measures such as fiber length, % fines or slurry viscosity.Type: GrantFiled: June 13, 2013Date of Patent: February 18, 2020Assignee: University of Maine System Board of TrusteesInventors: Michael A. Bilodeau, Mark A. Paradis
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Patent number: 10501892Abstract: The present invention provides a tissue product formed from a fiber furnish consisting essentially of short cellulosic fibers, such as fibers having an average fiber length less than about 2.0 mm, and a synthetic fiber having at least one cross-section dimension less than about 20 microns. The invention also provides a tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of synthetic fibers and short cellulosic fibers, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between where the synthetic fibers are selectively disposed in the middle layer. Generally the tissue product comprises less than about 30 percent, by weight of the tissue product, synthetic fiber. In a preferred embodiment the tissue product comprises non-fibrillated polyethylene terephthalate (PET) fibers having a circular cross-section shape with a diameter less than about 5.Type: GrantFiled: September 29, 2016Date of Patent: December 10, 2019Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Thomas Gerard Shannon, Bo Shi
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Patent number: 10471395Abstract: A hollow fiber membrane and a method of preparing the same. The hollow fiber membrane has an inner surface and an outer surface, wherein the inner surface has a zebra-stripe pattern in which a dense portion and a porous portion are alternately formed in a longitudinal direction of the hollow fiber membrane.Type: GrantFiled: September 27, 2017Date of Patent: November 12, 2019Assignee: LOTTE CHEMICAL CORPORATIONInventors: Dong Jun Im, Bum Jin Park, Chang Min Seo
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Patent number: 10400073Abstract: The invention concerns a method for the surface crosslinking of a polymer, in particle form, having one or a plurality of labile hydrogen functions, comprising a step of implementing a crosslinking agent comprising at least two functions likely to react with the labile hydrogen functions of the polymer, the crosslinking method being carried out at a temperature lower than the melting point of the polymer. The invention also concerns a powder particle and the uses of same.Type: GrantFiled: May 16, 2014Date of Patent: September 3, 2019Assignee: Arkema FranceInventors: Geoffroy Cammage, Nicolas Dufaure, Guillaume Le, Cyrille Mathieu
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Patent number: 10358773Abstract: The present invention relates to a resin fine particle dispersion optimal for manufacturing a sheet product such as paper. Specifically, an object of the present invention is to provide a resin fine particle dispersion with which a sheet product having excellent heat resistance and high mechanical strength is obtained, and which has a small environmental load due to a small amount of resin particles remaining in wastewater after papermaking. Provided are a resin fine particle dispersion including resin fine particles (A), a fiber material (B), an ionic polyacrylamide (C), and water as essential components, and a sheet product and a friction plate using this.Type: GrantFiled: March 1, 2016Date of Patent: July 23, 2019Assignee: DIC CorporationInventors: Seiji Kimoto, Shigenobu Kida
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Patent number: 10301775Abstract: Method for producing a sterilized foam web, wherein the method comprising the steps of preparing a wet foam (1), feeding the wet foam (1) to a head box (2, 11), distributing the wet foam by the head box (2, 11), treating the wet foam (1) with electron beam radiation (3a, 3b, 3c) to immobilize and sterilize the wet foam (1), receiving the electron beam treated foam on a moving wire (4) to form a foam web (6, 13), pressing and the foam web (6, 13), and drying the foam web (6, 13).Type: GrantFiled: September 30, 2015Date of Patent: May 28, 2019Assignee: Stora Enso OYJInventors: Jan-Erik Nordström, Jari Räsänen
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Patent number: 10263232Abstract: A drying device includes a first cylindrical member and a second cylindrical member. The first cylindrical member has an outer peripheral surface having a surface temperature that is higher on one width wise side where an end is present than on the other widthwise side where another end is present, whereas the second cylindrical member has an outer peripheral surface having a surface temperature that is lower on the one widthwise side where an end is present than on the other widthwise side where another end is present.Type: GrantFiled: November 17, 2016Date of Patent: April 16, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Akihiko Shin, Koichiro Watanabe