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公开(公告)号:US20240326102A1
公开(公告)日:2024-10-03
申请号:US18573461
申请日:2022-06-20
申请人: HYBRID REALITY GMBH
发明人: Ani MANERA DA SILVA , Cord LABUHN
CPC分类号: B08B3/08 , A61J11/0075 , A61L2/07 , A61L2/087 , C08B15/00 , C11D7/06 , A61L2202/17
摘要: The invention relates to a process for reprocessing a utensil made of a nonwoven made of bacterial nanocellulose loaded with an additive, comprising the process steps of washing the loaded utensil in an alkaline solution and subsequently rinsing and sterilizing the utensil, a rubber dam made of a dimensionally stable hydrogel made of bacterial nanocellulose and the use of a hydrogel made of bacterial nanocellulose as a rubber dam.
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公开(公告)号:US11975019B2
公开(公告)日:2024-05-07
申请号:US17372102
申请日:2021-07-09
申请人: Glycologix, LLC
发明人: Thomas H. Jozefiak
IPC分类号: A61K31/726 , A61K9/00 , A61K47/61 , A61P13/10 , C07C317/08 , C08B15/00 , C08B37/00 , C08B37/08
CPC分类号: A61K31/726 , A61K9/0019 , A61K47/61 , A61P13/10 , C07C317/08 , C08B15/005 , C08B37/0063 , C08B37/0072
摘要: Polymer conjugates are provided that are capable of mimicking functions of natural proteoglycans found in the extracellular matrix of connective tissues. The polymer conjugates of the invention have utility in treating a subject suffering soft tissue conditions. Also provided are simple and scalable chemical processes for the preparation of the polymer conjugates of the invention.
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公开(公告)号:US11912831B2
公开(公告)日:2024-02-27
申请号:US16615001
申请日:2018-04-24
申请人: ISP INVESTMENTS LLC
发明人: Michael A Tallon , Alaa Alharizah
IPC分类号: C08G81/02 , A61K47/58 , A61K31/135 , C04B24/38 , C08B15/00 , C08B37/00 , C08F220/36 , C08F265/06 , C08G77/442 , C09C1/30 , C09D11/101 , C09D11/107 , D01F1/10 , H01M4/62 , C08F220/28 , C08F222/10
CPC分类号: C08G81/027 , A61K31/135 , A61K47/58 , C04B24/383 , C08B15/005 , C08B37/00 , C08F220/281 , C08F220/36 , C08F222/102 , C08F265/06 , C08G77/442 , C08G81/024 , C08G81/025 , C09C1/3072 , C09D11/101 , C09D11/107 , D01F1/10 , H01M4/622 , C08F2800/20 , C08F2810/20 , C08F2810/50 , C08F222/102 , C08F220/281 , C08F220/36 , C08F220/325
摘要: This application provides reactive, flexible, water-resistant hydroxyethylpyrrolidone methacrylate/glycidyl methacrylate copolymers having the structure:
wherein a and b are integers, the sum of which less than 100, covalently linked to active agents that are useful in a wide variety of compositions. The present application also discloses hydroxyethylpyrrolidonemethacrylate/glycidyl methacrylate copolymer convently linked to one or more surface active moiety having a structure:
wherein a, b, and c are integers, the sum of which equals 100, and M is a surface-active moiety.-
公开(公告)号:US11858885B2
公开(公告)日:2024-01-02
申请号:US17441467
申请日:2020-03-24
CPC分类号: C07C41/22 , C08B15/00 , C08B31/00 , C08B37/0045
摘要: The present invention provides a polysaccharide supported fluorinating agents which can be used in fluorination reactions. The invention particularly describes a new bacterial cellulose supported tetra-n-butyl ammonium fluoride complex [NBu4(Bac-Cell-OH)F] which is stable and non-hygroscopic. The invention further relates to a process for fluorination using the [NBu4(Bac-Cell-OH)F] complex.
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公开(公告)号:US11713360B2
公开(公告)日:2023-08-01
申请号:US16607870
申请日:2018-06-01
申请人: TOAGOSEI CO., LTD.
发明人: Daisuke Kamiya , Shiroshi Matsuki
摘要: An object of the present invention is to provide an efficient method for producing cellulose nanofibers, without N-oxyl compounds such as TEMPO remaining in the cellulose nanofibers. Provided is a method for producing cellulose nanofibers, the method including: oxidizing a cellulose raw material with hypochlorous acid, or a salt thereof, having an available chlorine concentration of from 14% by mass to 43% by mass, to produce an oxidized cellulose; and fibrillating the oxidized cellulose into nanofibers.
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公开(公告)号:US11661486B1
公开(公告)日:2023-05-30
申请号:US17845143
申请日:2022-06-21
申请人: TUSKEGEE UNIVERSITY
发明人: Vijaya K. Rangari , Samia Islam , Woubit Abebe
CPC分类号: C08J5/18 , C08B3/12 , C08B15/005 , C08B37/003 , C08L1/04 , C08L1/10 , C08L5/08 , C08J2301/02 , C08J2401/10 , C08J2405/08 , C08L2201/06 , C08L2203/16 , C08L2205/02 , C08L2205/03
摘要: A biopolymer film is provided that comprises a combination of crystalline nano cellulose (CNC)/esterified crystalline nano cellulose (ECNC) reinforced with chitosan. The two polymer components can be present in any ratio, but an approximate CNC to ECNC 70:30 ratio is preferred. The chitosan component is derived from exoskeletons of crustaceans. Also provided are methods of preparing biopolymer film and preparing food packaging components from said biopolymer film. The CNC/ECNC mixture is dissolved in an ethanol solution and the chitin is dissolved in acetic acid and mixed together to form a polymer blend.
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公开(公告)号:US11591429B2
公开(公告)日:2023-02-28
申请号:US17241421
申请日:2021-04-27
IPC分类号: C08F251/02 , C08B3/08 , C08B15/00 , D21H27/00 , D21H11/16 , D21H11/20 , D21H17/37 , D01F11/02 , D21C9/00 , D21H21/22 , B01J20/24 , B01J20/26 , B01J20/28 , D01F2/00
摘要: Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP value of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.
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8.
公开(公告)号:US20230054106A1
公开(公告)日:2023-02-23
申请号:US17956990
申请日:2022-09-30
发明人: Lianzhen LIN , Masanori HORI , Ayako MARUTA
摘要: Sulfate ester modified cellulose nanofibers having an average fiber diameter in the range of 1 nm to 500 nm, and having sulfate ester modified hydroxyl groups on surfaces of the cellulose nanofibers. A method of producing cellulose nanofibers that are nanosized, that have a high crystallinity degree, and that have large aspect ratios, the method being a chemical method that does not require any physical pulverization, that is energy-saving, and that can be performed under mild reaction conditions. A method of producing modified cellulose nanofibers including modifying the surfaces of the cellulose nanofibers through esterification or urethanization. A method of producing cellulose nanofibers includes impregnating cellulose with a fibrillation solution containing dimethylsulfoxide, at least one carboxylic acid anhydride selected from acetic anhydride and propionic anhydride, and sulfuric acid to fibrillate the cellulose.
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公开(公告)号:US11518821B2
公开(公告)日:2022-12-06
申请号:US16479207
申请日:2018-01-18
发明人: Per Larsson , Giada Lo Re
摘要: The present invention relates to a product comprising cellulose fibers wherein the cellulose fibers are at least partly modified to contain dialcohol cellulose and a melt-processing method of preparing the same.
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公开(公告)号:US11491460B2
公开(公告)日:2022-11-08
申请号:US17082976
申请日:2020-10-28
申请人: Cornell University
发明人: William R. Dichtel , Alaaeddin Alsbaiee , Brian J. Smith , Juan Hinestroza , Diego Alzate-Sanchez , Leilei Xiao , Yuhan Ling , Damian Helbling
IPC分类号: B01J20/24 , C08B37/16 , C08B15/00 , C02F1/28 , G01N30/02 , G01N30/72 , B01J20/32 , B01J20/34 , B01D15/40 , B01D53/02 , B01J20/28 , B01J20/289 , G01N30/14 , G01N30/30 , G01N33/02 , C02F101/32 , C02F101/34 , C02F101/38 , C02F103/34 , C02F101/30 , C02F103/06
摘要: A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.
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