Patents Examined by Leo B. Tentoni
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Patent number: 11566348Abstract: A plant-based functional polyester filament and a preparation method of the plant-based functional polyester filament are provided. The plant-based functional polyester filament includes polyester, and plant extract in a weight percentage range of approximately 0.1%-1.5%. The plant extract includes one or more of a peppermint extract, a valerian extract, a lavender extract, a wormwood extract, a chitin extract and a seaweed extract. The method includes preparing a plant-based functional polyester masterbatch, including: heating polyethylene terephthalate (PET) chips to a molten state, adding an antioxidant and a dispersant to the molten PET, stirring the molten PET, adding a protective agent and a plant extract to the molten PET, stirring the molten PET at a high speed, adding a modifier to the molten PET, obtaining a mixture by uniformly mixing the molten PET, and performing an extrusion granulation process on the mixture.Type: GrantFiled: October 21, 2020Date of Patent: January 31, 2023Assignee: BESTEE MATERIAL (TSINGTAO) CO., LTD.Inventors: Xiaohua Huang, Yanming Liu, Yu Liu, Xiaoqian Huang, Li Zhen, Jie Liu
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Patent number: 11566349Abstract: A polymer body includes a first thermoplastic polymer, and a second thermoplastic polymer. The first thermoplastic polymer and the second thermoplastic polymer form a continuous solid structure. The first thermoplastic polymer forms an external supporting structure that at least partially envelops the second thermoplastic polymer. A first flow temperature of the first thermoplastic polymer is at least 10° C. higher than a second flow temperature of the second thermoplastic polymer. The first thermoplastic polymer may be removable by exposure to a selective solvent.Type: GrantFiled: August 11, 2020Date of Patent: January 31, 2023Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ryan M. Dunn, Kevin R. Hart, Eric D. Wetzel
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Patent number: 11565837Abstract: A system and process of printing a package of expanded material (e.g., expanded starch, foam or other expanded material). The expanded material can be heated and extruded, poured, sprayed, or otherwise applied in malleable form that sets up to become a porous protective covering for an item to be packaged. In an example, a layer of expanded material is laid down, and the item in a protective covering (e.g., a plastic bag, sleeve, coating, etc.) is positioned on the layer of expanded material. Additional layers or expanded material may be applied, thereby encasing the item. The top surface of the expanded material may be flattened, such as by operation of a roller, press, or cutter. The top surface may be sprayed with a shellac sealant, paint, or other coating, to allow printing of a label on the top surface.Type: GrantFiled: June 7, 2020Date of Patent: January 31, 2023Inventors: Shay C. Colson, David A. Divine, David S. Thompson, Patrick Molvik
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Patent number: 11560658Abstract: Soft point bonded nonwoven webs, and methods of making the same, are described that utilize a pattern of small, discrete bond points in a sequent pattern that together form macro-elements. The macro-elements are themselves positioned and aligned within a pattern such that mechanical stretching operations on the point bonded nonwoven webs yields soft and bulky fabrics but with reduced incidence of tearing or rupturing of the individual bond points.Type: GrantFiled: August 16, 2018Date of Patent: January 24, 2023Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Timothy D. Ferguson, David A. Palzewicz, Daniel M. Nussbaum, Tom R. Belau
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Patent number: 11549198Abstract: The invention relates to non-woven protein fibers and to methods for forming and producing the same. In certain embodiments, the invention provides a method of processing a protein comprising dissolving a protein in a solution, optionally removing any insoluble materials from the solution, and spraying the solution under an applied pressure. In other embodiments, the protein can be derived from a range of sources, including but not limited to arthropod silks, animal keratin (e.g. hair and wool), tissue elastin, collagen, resilin, and plant protein. In certain embodiments, the methods of the invention are an alternative to electrospinning methods known in the art.Type: GrantFiled: April 17, 2018Date of Patent: January 10, 2023Assignee: Rowan UniversityInventors: Xiao Hu, Xiaoyang Mou
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Patent number: 11535955Abstract: The present invention relates to a device and to a method for producing a texturized filament or yarn, wherein at least one filament is guided into a draw device, is guided there by a pair of intake rollers towards at least two pairs of drafting system rollers and drawn by the same, downstream of which is disposed a texturizing device with a cooling drum. Downstream the texturizing device with the cooling drum is disposed at least one cooled drafting system roller, by which the filament, respectively the yarn is cooled to a temperature of 0° C. to 50° C.Type: GrantFiled: January 11, 2018Date of Patent: December 27, 2022Assignee: TRÜTZSCHLER GROUP SEInventors: Lassad Nasri, Jean Clarysse
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Patent number: 11535956Abstract: Plant for producing non-woven fabric, which comprises a cooling chamber provided with a first and with a second cooling section traversed by filaments of non-woven fabric. In addition, the plant comprises a feed duct connected to the cooling chamber in order to convey, within the latter, a cooling gas by means of the action of a fan, and provided with a first and with a second valve arranged for determining corresponding flows of the cooling gas to be introduced, respectively, in the first and in the second cooling section. A pressure sensor is employed in order to determine the pressure in the cooling chamber, by controlling the fan in a feedback manner.Type: GrantFiled: December 3, 2020Date of Patent: December 27, 2022Assignee: RAMINA S.R.L.Inventor: Graziano Ramina
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Patent number: 11519104Abstract: Method of recycling a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and the molded bodies are generated based on the cellulosic fibers after mechanically separating and chemically separating.Type: GrantFiled: January 14, 2019Date of Patent: December 6, 2022Assignee: LENZING AKTIENGESELLSCHAFTInventors: Christoph Klaus-Nietrost, Richard Herchl, Christian Weilach
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Patent number: 11519100Abstract: Method of manufacturing a cellulose-regenerated-molded body, wherein the method comprises supplying a starting material which is manufactured by a lyocell-method and which comprises cellulose, which is manufactured by solving a cellulose source in a solvent for manufacturing a spinning mass, by extruding the spinning mass and by subsequently precipitating in a spinning bath, solving the starting material which comprises cellulose, in a solvent for manufacturing a spinning mass, and extruding, and subsequently precipitating the spinning mass in a spinning bath, wherein thereby the molded body is obtained.Type: GrantFiled: January 14, 2019Date of Patent: December 6, 2022Assignee: LENZING AKTIENGESELLSCHAFTInventors: Christoph Klaus-Nietrost, Richard Herchl, Christian Weilach, Christian Sperger
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Patent number: 11519101Abstract: Method of manufacturing a regenerated cellulosic molded body, wherein the method comprises supplying a starting material which comprises cellulose and at least one foreign matter, transferring at least a part of the starting material with at least a part of the at least one foreign matter into a spinning mass which additionally contains a solvent for solving at least a part of the cellulose of the starting material in the solvent, and extruding the spinning mass to the molded body, and subsequently precipitating in a spinning bath, wherein thereby the molded body is obtained, wherein the molded body comprises cellulose and at least a part of the at least one foreign matter.Type: GrantFiled: January 14, 2019Date of Patent: December 6, 2022Assignee: LENZING AKTIENGESELLSCHAFTInventors: Christoph Klaus-Nietrost, Richard Herchl, Christian Weilach
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Patent number: 11519103Abstract: The present disclosure relates to a process for preparing carbon fibers. The process involves blending a carbon nano-material with a carbon material to obtain a homogenous blend, heating the homogenous blend to obtain mesophase pitch having particles with reduced mesophase sphere size followed by spinning the mesophase pitch to obtain the pitch fibers. The pitch fibers are then carbonized to obtain the carbon fibers. The carbon fibers prepared by the process of the present disclosure have improved tensile properties as compared to the conventional pitch based carbon fibers.Type: GrantFiled: November 2, 2018Date of Patent: December 6, 2022Assignee: Reliance Industries LimitedInventors: Swanand Dilip Patil, Rupesh Arun Khare, Padmavathi Nandigam, Asmita Ashok Khanvilkar, Sreekumar Thaliyil Veedu
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Patent number: 11505883Abstract: Disclosed herein are improvements to processes and equipment for the manufacture of composite nonwoven webs comprising a mixture of two or more different fibers and formed from at least two streams of air-entrained fibers. Adjacent the perimeter of an exit port of one of the fiber streams are located a series of spaced tabs and apertures. As a first stream of air-entrained fibers pass the series of tabs and apertures, vortices are formed therein. When mixed with a second stream of air-entrained fibers, the vortices within the first stream of fibers causes increased mixing of the fibers, helping to drive the first fibers deeper into the second stream of air-entrained fibers.Type: GrantFiled: June 29, 2018Date of Patent: November 22, 2022Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventor: Bryan D. Haynes
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Patent number: 11492737Abstract: A method of dissolving lignocellulosic biomass waste includes obtaining raw lignocellulosic biomass waste, reducing a size of the biomass waste to provide a biomass particle size of less than about 200 ?m; using dimethyl sulfoxide (DMSO), sodium hydroxide (NaOH) and trifluoroacetic acid (TFA) solvents to dissolve the biomass particles and achieve a dissolved lignocellulose solution. The present method dissolves at least about 94% of the lignocellulose fraction in the waste biomass. In an embodiment, the biomass particle size can be about 180 ?m.Type: GrantFiled: August 19, 2021Date of Patent: November 8, 2022Assignee: UNITED ARAB EMIRATES UNIVERSITYInventors: Emmanuel Galiwango, Ali H. Al-Marzouqi, Sabeera Haris
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Patent number: 11486059Abstract: The invention relates to a method and to a device for stabilizing precursor fibers for the production of carbon fibers. In the method, precursor fibers are first heated to a first temperature and held at the temperature for a predefined duration. Subsequently, the precursor fibers are heated to at least one second temperature, which is higher than the first temperature, and held at said temperature for a predefined duration. During each heating and between the heating steps, the precursor fibers are in a gas atmosphere having a negative pressure in the range between 12 mbar and 300 mbar and having an oxygen partial pressure of 2.5 to 63 mbar. The device has at least one evacuable, elongate vacuum chamber for feeding the precursor fibers through, at least two lock units and at least one heating unit.Type: GrantFiled: March 11, 2019Date of Patent: November 1, 2022Assignee: CENTROTHERM INTERNATIONAL AGInventors: Andreas Keller, Gunter Fauth, Uwe Ziegler
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Patent number: 11479620Abstract: A photoinitiated polymerizable composition for 3D printing, the polymerizable composition comprising a nanogel component that comprises nanogel particles, wherein the nanogel particles comprise a copolymer with polymerizable reactive groups suitable for reacting with each other or a reactive diluent monomer, a reactive oligomer, a resin, or a combination thereof that is present in the polymerizable composition upon photoinitiation, wherein the nanogel component has a glass transition temperature that is in a range of about ?50 C and about 20 C and an average molecular weight that is in a range of about 10 kg/mol and about 100 kg/mol, and wherein the nanoparticles have an average hydrodynamic radius that is in a range of 1 nm to about 5 nm.Type: GrantFiled: September 18, 2018Date of Patent: October 25, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADOInventors: Jeffrey W. Stansbury, Parag K. Shah, Robert R. McLeod
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Patent number: 11473222Abstract: A copper ion-complexed poly gamma-glutamic acid (?-PGA)/chitosan (CS)/cotton blended antibacterial knitted fabric and a preparation method includes chitosan that is crosslinked with poly gamma-glutamic acid, then a copper-ammonia complex ion solution is added to prepare a spinning solution. The spinning solution is wet spun and then stretched, washed with water, finished, washed with water, and dried to get copper ion-complexed poly gamma-glutamic acid/chitosan composite fibers. The blended antibacterial knitted fabric is then prepared by using cotton fiber yarns and the composite fibers. There is a very high coordination coefficient between carboxyl groups of gamma-PGA and amino groups of CS, so the structure is stable. Poly-gamma glutamic acid can be used as water-retaining agent and heavy metal ion adsorbent, which can increase the loading rate of copper ions.Type: GrantFiled: July 1, 2021Date of Patent: October 18, 2022Assignee: Qufu Normal UniversityInventors: Ge Yang, Ruixia Gao, Chengchuan Che, Jinfeng Liu, Zhijin Gong, Yang Sun, Qi Chen
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Patent number: 11473219Abstract: The present application provides methods for producing polybenzimidazole carbon fiber that does not require infusibilization treatment.Type: GrantFiled: October 21, 2019Date of Patent: October 18, 2022Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Toshihira Irisawa, Hiroaki Hatori, Yasushi Soneda, Masaya Kodama
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Patent number: 11466386Abstract: This disclosure relates to air-assisted spinnerets and spinneret arrays for electrospinning. In some embodiments, the air-assisted spinnerets and spinneret arrays are incorporated in electrospinning systems and/or electrospinning machines. Methods of making and using the same are also described herein.Type: GrantFiled: June 12, 2019Date of Patent: October 11, 2022Assignee: Nanopareil, LLCInventors: Hao Fong, Todd J. Menkhaus, Yong Zhao, Nyle Hedin, Craig Arnold
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Patent number: 11459672Abstract: A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.Type: GrantFiled: June 22, 2018Date of Patent: October 4, 2022Assignees: LG ENERGY SOLUTION, LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Eunkyung Park, Jang Wook Choi, Sung Hyeon Park, Minehul Jang, Suk Il Youn, Byoungkuk Son, Se Ho Park
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Patent number: 11453961Abstract: The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).Type: GrantFiled: February 15, 2018Date of Patent: September 27, 2022Assignee: SPINNOVA OYInventors: Johanna Liukkonen, Sanna Haavisto, Pasi Selenius, Juha Salmela, Janne Poranen, Arto Salminen, Marko Myllys, Pia Vento, Karri Björklund