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公开(公告)号：US20240337053A1
公开(公告)日：2024-10-10
申请号：US18700263
申请日：2023-12-06
申请人： IBIDEN CO., LTD.
发明人： Tomohisa YAMAZAKI
IPC分类号： D04H1/72 , D04H1/4209 , D21B1/12
CPC分类号： D04H1/72 , D04H1/4209 , D21B1/12 , D10B2101/02
摘要： Provided is a method of producing an inorganic fiber mat, the method including: a preparing step of preparing a first inorganic fiber molding including an organic binder attached thereto and derived from a needle-punched mat; a defibrating step of defibrating the first inorganic fiber molding to obtain defibrated inorganic fibers; and a papermaking step of forming the inorganic fiber mat by papermaking using a slurry containing the defibrated inorganic fibers.
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公开(公告)号：US12098505B2
公开(公告)日：2024-09-24
申请号：US17050013
申请日：2019-03-22
申请人： VALMET AB
发明人： Olof Melander , Patrik Pettersson , Johan Carlsson
摘要： A system for treatment of a biomass material and a method for transporting biomass material, said system comprising: —a first vessel (3) in which said biomass material is treated at a first pressure;—a second vessel (5) in which said biomass material is collected at a second pressure which is lower than the first pressure; and—a transporting pipe (7) connecting an outlet (9) of the first vessel (3) with an inlet (11) of the second vessel (5) for transporting the biomass material from the first vessel to the second vessel, wherein said transporting pipe (7) comprises at least one restriction (13) for control of the flow in the transporting pipe and hereby providing a pressure drop to the transported biomass material, wherein at least one of said at least one restriction (13) is provided somewhere in the second half of the length of the transporting pipe (7) starting from the first vessel (3) and ending at the second vessel (5).
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3.发明公开公开(公告)号：US20240295078A1
公开(公告)日：2024-09-05
申请号：US18661717
申请日：2024-05-13
发明人： He LIU , Xinxin YANG , Bowen ZHANG , Shibin SHANG , Zhanqian SONG
摘要： The present invention discloses a preparation method and recycling method for degradable and recyclable paper plastics with water resistance and high-strength. By coating cyclic carbonate and amine compounds on paper, these compounds penetrate the paper's fiber structure, followed by curing treatment, resulting in a recyclable, degradable, and reprocessed paper plastic material with water resistance and high-strength. This method involves coating only cyclic carbonate and amines onto the paper, which, after heating, yields the paper plastic. The invention offers versatility, enhancing various paper types with improved mechanical properties, temperature resistance, water resistance, and solvent resistance while maintaining degradation capability. The paper plastic exhibits excellent self-healing, plasticity, degradation, and reprocessing properties. The process method is straightforward and user-friendly, making it suitable for industrial-scale production.
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公开(公告)号：US20240278965A1
公开(公告)日：2024-08-22
申请号：US18650722
申请日：2024-04-30
发明人： Kongmeng Ye
CPC分类号： B65D65/38 , D21B1/30 , D21J3/12 , B65D2565/382
摘要： An easy-print packaging sheet and a manufacturing method therefor. Raw materials of the easy-print packaging sheet contain polyethylene; the smoothness of the packaging sheet is 70-250 seconds; the drape coefficient of the packaging sheet is 78-92%; the burst index of the packaging sheet is 8-15 kPa·m2/g; and the light shielding rate of the packaging sheet is 85-95%. The packaging sheet having good comprehensive performance is prepared by means of a flash spinning process and the improvement of raw materials and a spinning process.
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公开(公告)号：US12065779B2
公开(公告)日：2024-08-20
申请号：US17386601
申请日：2021-07-28
发明人： Koji Motohashi , Makoto Sato , Takashi Abe
摘要： A raw-material feeding device includes: a storage section that includes a bottom section and a side wall standing from the bottom section and that stores, in a storage space surrounded by the bottom section and the side wall, small pieces of raw material constituted by a material containing fibers; a stirring section that is provided in the bottom section at a position facing the storage space, that includes a blade which rotates about a rotational axis extending in a direction in which the side wall stands, and that stirs the raw material in the storage space by rotating the blade; a first discharging section that is provided in the side wall so as to communicate with the storage space, that includes a first tubular body rotating about a first axis intersecting the rotational axis, and that discharges, upon rotation of the first tubular body, the raw material in the storage space to a processing section; and a second discharging section that is provided in the side wall at a position different from a position at which the first tubular body is provided so as to communicate with the storage space, that includes a second tubular body rotating about a second axis intersecting the rotational axis, and that discharges, upon rotation the second tubular body, the raw material in the storage space to the processing section.
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公开(公告)号：US20240271363A1
公开(公告)日：2024-08-15
申请号：US18438546
申请日：2024-02-12
发明人： Naoko OMAGARI , Kensaku MATSUDA
CPC分类号： D21B1/061 , B01F33/83611 , B01F35/53 , B01F2025/919
摘要： There is provided a dispersion device including: a dispersion section that has a chamber and that stirs and disperses a material containing fibers in the chamber; and a supply pipe coupled to the chamber and supplying the material to the chamber together with air, in which the supply pipe has a first portion located on a chamber side and extending in a first direction, a second portion extending in a second direction intersecting the first direction, and a third portion coupling the first portion and the second portion, and in at least one of the first portion, the second portion, and the third portion, a cross-sectional shape of an internal flow path is an elongated shape having a short axis and a long axis.
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公开(公告)号：US12018432B2
公开(公告)日：2024-06-25
申请号：US16996414
申请日：2020-08-18
发明人： Kimberly Nelson , Theodora Retsina , Lee Hill
摘要： In some variations, OCC is screened, cleaned, deinked, and mechanically refined to generate cellulose nanofibrils. The OCC may be subjected to further chemical, physical, or thermal processing, prior to mechanical refining. For example, the OCC may be subjected to hot-water extraction, or fractionation with an acid catalyst, a solvent for lignin, and water. In certain embodiments to produce cellulose nanocrystals, OCC is exposed to AVAP® digestor conditions. The resulting pulp is optionally bleached and is mechanically refined to generate cellulose nanocrystals. In certain embodiments to produce cellulose nanofibrils, OCC is exposed to GreenBox+® digestor conditions. The resulting pulp is mechanically refined to generate cellulose nanofibrils. The site of a system to convert OCC to nanocellulose may be co-located with an existing OCC processing site. The nanocellulose line may be a bolt-on retrofit system to existing infrastructure. In other embodiments, a dedicated plant for converting OCC to nanocellulose is used.
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公开(公告)号：US20240018696A1
公开(公告)日：2024-01-18
申请号：US18035928
申请日：2021-11-09
申请人： Shikha SHAH
发明人： Shikha SHAH
CPC分类号： D01G11/00 , D01G1/10 , D01G9/00 , D01G13/00 , D06M10/02 , D06M16/003 , D01G5/00 , D21B1/02 , D10B2201/00 , D06M2101/06
摘要： A method 100 for processing fibrous matter from a waste material involves obtaining 101 the waste material, trimming 102 the waste material, pre-treating 104, second mechanical treatment 106, washing 108, first chemical treatment 110 with an enzyme and water solution, draining 112 the enzyme and water solution, heating 114 to obtain a fiber cake, providing 116 controlled shockwaves, a second chemical treatment 118, hydro-extracting 120 fiber cake, opening 122 the fiber cake, drying 124, pre-conditioning and softening 126, mechanically treating and segregating 128, softening 129, processing 130 to obtain a sliver and spinning 132 the sliver to obtain a product.
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9.发明授权公开(公告)号：US11767403B2
公开(公告)日：2023-09-26
申请号：US16722297
申请日：2019-12-20
发明人： Yanhong Feng , Hang Cheng , Bo Lei , Xinliang Zou
CPC分类号： C08J3/18 , D21B1/021 , C08J2397/02
摘要： The present disclosure relates to a method for controlling thermoplasticity and toughness of a redox-modified plant fiber, comprising following steps: (1) pretreating a plant fiber; (2) obtaining an oxidation-modified plant fiber by adding an oxidant solution, then filtering, and washing; and obtaining the redox-modified plant fiber by adding a reductant solution, then filtering, and washing; and (3) fully mixing a plasticizer with the redox-modified plant fiber; the plasticizer being a hydroxyl plasticizer, an ionic liquid plasticizer, a deep eutectic solvent, an ester plasticizer, an amine plasticizer, a glycidyl plasticizer, or an inorganic salt plasticizer. The method according to the present disclosure can improve the toughness of the redox-modified plant fiber material, reduce the processing temperature of the plant fiber material, and broaden the processing window of the plant fiber material.
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公开(公告)号：US20230265609A1
公开(公告)日：2023-08-24
申请号：US18098490
申请日：2023-01-18
申请人： GPCP IP Holdings LLC
发明人： Jeffrey A. Lee , Kevin M. Holtman
CPC分类号： D21B1/026 , D21C9/1068 , D21C9/1005 , D21C9/163 , D21C3/026 , D21H11/02
摘要： A method of producing high yield chemical cellulosic pulp includes: (a) chemically pulping wood chips to separate lignin and liberate cellulosic fibers from the wood chips to generate a cellulosic pulp; (b) washing and screening the pulp of step (a); (c) pre-treating the washed pulp with oxygen; (d) optionally washing the treated pulp of step (c); (e) bleaching the pre-treated pulp in an extended duration oxidative bleaching stage; (f) optionally washing the bleached pulp of step (e); and (g) optionally further oxidatively or reductively bleaching the bleached pulp in a shorter duration bleaching stage, wherein the bleached pulp is produced at a yield of greater than 60% based on the weight of the pulped wood chips (dry basis).
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