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公开(公告)号：US12122980B2
公开(公告)日：2024-10-22
申请号：US17834521
申请日：2022-06-07
申请人： Soane Materials LLC
IPC分类号： D21H21/08 , C11D17/04 , D21H11/12 , D21H11/14 , D21H11/18 , D21H17/06 , D21H17/07 , D21H17/14 , D21H17/20 , D21H17/26 , D21H17/34 , D21H17/36 , D21H21/10
CPC分类号： C11D17/042 , C11D17/045 , D21H11/12 , D21H11/14 , D21H11/18 , D21H17/06 , D21H17/07 , D21H17/14 , D21H17/20 , D21H17/26 , D21H17/34 , D21H17/36 , D21H21/08 , D21H21/10 , C11D2111/12 , C11D2111/14
摘要： The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying/dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.
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公开(公告)号：US12031322B2
公开(公告)日：2024-07-09
申请号：US16918125
申请日：2020-07-01
CPC分类号： E04B1/86 , D21H11/18 , D21H13/40 , D21H17/28 , D21H17/68 , D21J1/20 , E04B2001/745 , E04B2103/04
摘要： Described herein is an acoustic building panel comprising a body comprising inorganic fiber in an amount ranging from about 60.0 wt. % to about 90.0 wt. % based on the total weight of the body; and microfibrillated fiber in an amount ranging from about 0.5 wt. % to about 10 wt. % based on the total weight of the body.
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公开(公告)号：US12012469B2
公开(公告)日：2024-06-18
申请号：US17053867
申请日：2019-05-24
发明人： Ikko Matsusue
摘要： A fibrous cellulose having a high resin reinforcing effect and a method for manufacturing the same, and a fibrous cellulose composite resin having high strength and a method for manufacturing the same. A fibrous cellulose has an average fiber width of 0.1 μm or more, an average fiber length of 0.02 to 3.0 mm, and a fibrillation ratio of 1.0% or more. A kneaded product of this fibrous cellulose and a resin is formed into a fibrous cellulose composite resin. In manufacturing the fibrous cellulose, a raw material fiber is defibrated so as to have an average fiber width of 0.1 μm or more, an average fiber length of 0.02 to 3.0 mm, and a fibrillation ratio of 1.0% or more. The fibrous cellulose obtained by this method and a resin are kneaded to manufacture a fibrous cellulose composite resin.
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4.发明公开公开(公告)号：US20240175212A1
公开(公告)日：2024-05-30
申请号：US18428151
申请日：2024-01-31
CPC分类号： D21H27/007 , D21H11/18 , D21H17/11 , D21H17/375 , D21H17/42 , D21H17/55 , D21H27/40
摘要： A method of making an absorbent structure including mixing ultra-high molecular weight (“UHMW”) glyoxalated polyvinylamide adducts (“GPVM”) and/or high molecular weight (“HMW”), glyoxalated polyacrylamide and/or high cationic charge glyoxalated polyacrylamide (“GPAM”) copolymers and high molecular weight (“HMW”) anionic polyacrylamide (“APAM”) with the furnish during stock preparation of a wet laid papermaking process.
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公开(公告)号：US20240175211A1
公开(公告)日：2024-05-30
申请号：US18511020
申请日：2023-11-16
发明人： Harshad Pande , Lindsey Clifton
摘要： A method of making a pulp composition having improved strength characteristics is disclosed. The method includes mixing together a starch and fibrillated fibers to produce a starch/fibrillated fibers mixture, and mixing the starch/fibrillated fibers mixture into wood pulp fibers to produce the pulp composition.
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公开(公告)号：US20240141591A1
公开(公告)日：2024-05-02
申请号：US18276708
申请日：2022-02-03
发明人： Rina SHISHIDO , Yuichi NOGUCHI , Hirokazu SUNAGAWA
摘要： Provided are: a sheet which has high transparency, in which yellowing due to heating is suppressed, and which has high tensile elastic modulus and excellent flexibility; and a layered body having the sheet. The sheet of the present invention contains ultrafine fibrous cellulose having a fiber width of 10 nm or less, and a cellulose derivative having a weight-average molecular weight of 1.0×104 or more and 3.0×105 or less.
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公开(公告)号：US11970817B2
公开(公告)日：2024-04-30
申请号：US17826700
申请日：2022-05-27
发明人： John Claude Husband , Per Svending , David Robert Skuse , Tafadzwa Motsi , Mikko Likitalo , Alan Coles
IPC分类号： D21C9/00 , D21B1/30 , D21B1/32 , D21D1/20 , D21H11/04 , D21H11/18 , D21H11/20 , D21H15/02 , D21H19/38
CPC分类号： D21C9/007 , D21B1/30 , D21B1/32 , D21C9/001 , D21D1/20 , D21H5/1236 , D21H11/04 , D21H11/18 , D21H11/20 , D21H19/38 , D21H19/385
摘要： A method for preparing an aqueous suspension may include providing a fibrous substrate comprising cellulose having a Canadian Standard freeness equal to or less than 450 cm3, and microfibrillating the fibrous substrate in an aqueous environment by grinding in the presence of a grinding medium consisting essentially of mullite. The grinding may be carried out in the absence of grindable inorganic particulate material. The grinding medium may be present in an amount of at least about 10% by volume of the aqueous environment. The microfibrillated cellulose may have a fibre steepness of from about 20 to about 50.
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公开(公告)号：US20240133118A1
公开(公告)日：2024-04-25
申请号：US18548368
申请日：2022-03-08
申请人： Stora Enso OYJ
摘要： The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.
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公开(公告)号：US11920304B2
公开(公告)日：2024-03-05
申请号：US17288375
申请日：2019-10-28
发明人： You-Lo Hsieh , Xuezhu Xu
摘要： The present invention describes a method for preparing graphene by mixing graphite and carbon nanofibrils. The prepared graphene can be used to form nanopaper. The present invention also provides a method of preparing nanopaper by suspending cellulose nanofibrils and graphene, followed by vacuum filtering of the suspension.
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公开(公告)号：US11905657B2
公开(公告)日：2024-02-20
申请号：US16978967
申请日：2019-03-18
发明人： Junya Okawa
摘要： Provided is a method for producing cellulose nanofibers by refining pulp fibers, wherein the method enables obtaining cellulose nanofibers in which a decrease in a molecular weight of cellulose is suppressed, and which can demonstrate superior strength and the like. The present invention is a method for producing cellulose nanofibers, the method including: pretreating pulp fibers in a slurry; and refining, using a high-pressure homogenizer, the pulp fibers in the slurry, the pulp fibers being pretreated, wherein a weight average molecular weight of cellulose of cellulose nanofibers obtained through the refining is 65% or more of a weight average molecular weight of cellulose of the pulp fibers before the pretreating.
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