-
公开(公告)号：US07927540B2
公开(公告)日：2011-04-19
申请号：US12184634
申请日：2008-08-01
IPC分类号： D01D5/08
CPC分类号： B01D46/546 , B01D39/1623 , B01D39/163 , B01D46/0001 , B01D46/521 , B01D63/065 , B01D63/067 , B01D69/02 , B01D69/10 , B01D71/06 , B01D2239/0216 , B01D2239/0225 , B01D2239/025 , B01D2239/064 , B01D2239/065 , B01D2275/10 , B01D2323/39 , B01D2325/20 , B01D2325/32 , D01D5/0069 , D01D5/0084 , D01D5/0985 , D04H1/4374 , D04H1/559 , D04H1/728 , D04H3/14
摘要： A method of making a composite filter media includes, in an exemplary embodiment, forming a nonwoven fabric mat that includes a plurality of synthetic fibers by a spunbond process, and calendaring the nonwoven fabric mat with embossing calendar rolls to form a bond area pattern comprising a plurality of substantially parallel discontinuous lines of bond area to bond the synthetic fibers together to form a nonwoven fabric, the nonwoven fabric having a minimum filtration efficiency of about 50%, measured in accordance with ASHRAE 52.2-1999 test procedure. The method also includes applying a nanofiber layer by electro-blown spinning a polymer solution to form a plurality of nanofibers on at least one side of the nonwoven fabric mat to form the composite filter media, the composite filter media having a minimum filtration efficiency of about 75%, measured in accordance with ASHRAE 52.2-1999 test procedure.
摘要翻译： 在一个示例性实施方案中，制备复合过滤介质的方法包括：通过纺粘方法形成包括多个合成纤维的非织造织物垫，并用压花压延辊压制非织造织物垫，以形成包含 多个基本上平行的不连续的粘合区域线，以将合成纤维粘合在一起形成非织造织物，该非织造织物具有根据ASHRAE 52.2-1999测试程序测量的约50％的最小过滤效率。 该方法还包括通过电纺丝聚合物溶液来应用纳米纤维层，以在非织造织物垫的至少一侧上形成多个纳米纤维以形成复合过滤介质，复合过滤介质具有最小的过滤效率约为 75％，按照ASHRAE 52.2-1999测试程序测量。
-
公开(公告)号：US20110064936A1
公开(公告)日：2011-03-17
申请号：US12561757
申请日：2009-09-17
CPC分类号： B01D69/105 , B01D53/228 , B01D69/12 , B01D69/125 , B01D69/148 , B01D2323/26 , B01D2323/39 , Y10T428/249955 , Y10T428/31504 , Y10T428/31721 , Y10T428/31855
摘要： One aspect of the invention relates to a method for installing coatings of different morphology and function within a single textile membrane. Remarkably, the methods described herein enable one to engineer the properties of a material at the nanoscopic level and produce the material in commercially viable quantities. For example, by simply controlling the flow rate of charged species passing through an electrospun material during spray-assisted Layer-by-Layer (Spray-LbL) deposition, individual fibers within the matrix can be conformally functionalized for ultra-high surface area catalysis, or bridged to form a networked sublayer with complimentary properties.
摘要翻译： 本发明的一个方面涉及在单个织物膜内安装不同形态和功能的涂层的方法。 显着地，本文描述的方法使得能够在纳米级别上设计材料的性质并以商业可行的量产生材料。 例如，通过简单地控制在喷雾辅助层叠（Spray-LbL）沉积期间通过电纺材料的带电物质的流速，基体内的单个纤维可以保形功能化用于超高表面积催化， 或桥接以形成具有互补性质的网络子层。
-
公开(公告)号：US07591883B2
公开(公告)日：2009-09-22
申请号：US11262550
申请日：2005-10-28
申请人： Jun Kameoka , Keiyo Nakano
发明人： Jun Kameoka , Keiyo Nakano
CPC分类号： B01D69/10 , B01D39/163 , B01D67/0004 , B01D71/40 , B01D71/52 , B01D71/72 , B01D2239/0225 , B01D2239/0258 , B01D2239/0668 , B01D2323/39 , B82Y30/00 , D01D5/0069 , D01D5/0084 , D01F6/66 , D01F6/86 , Y10S55/05 , Y10S264/48 , Y10T442/16 , Y10T442/614 , Y10T442/62 , Y10T442/668
摘要： A nanofiber membrane is formed on a microfiber membrane. The nanofiber membrane may be electro sprayed directly onto the microfiber membrane and becomes integrated with the microfiber membrane to form a filter. The microfiber membrane provides structural integrity to for the nanofiber membrane, and an additional microfiber membrane may be added to sandwich the nanofiber membrane.
摘要翻译： 在微纤维膜上形成纳米纤维膜。 纳米纤维膜可以直接电喷雾到微纤维膜上并与微纤维膜一体化以形成过滤器。 微纤维膜为纳米纤维膜提供结构完整性，并且可以加入另外的微纤维膜以夹住纳米纤维膜。
-
34.发明公开公开(公告)号：US20240342661A1
公开(公告)日：2024-10-17
申请号：US18754201
申请日：2024-06-26
发明人： Rongrong CAI , Jiusi WANG , Lizhi ZHANG
IPC分类号： B01D69/08 , B01D46/00 , B01D46/54 , B01D46/66 , B01D53/22 , B01D65/02 , B01D67/00 , B01D71/36 , B01D71/80
CPC分类号： B01D69/087 , B01D46/0032 , B01D46/543 , B01D46/785 , B01D53/228 , B01D65/02 , B01D67/0083 , B01D67/0095 , B01D69/081 , B01D71/36 , B01D71/80 , B01D2321/22 , B01D2323/081 , B01D2323/12 , B01D2323/35 , B01D2323/39
摘要： Provided are a recyclable electret filtering membrane, a preparation method therefor and a cleaning and charge regeneration method therefor. The preparation method includes: dissolving fluorine-containing polymer particles and polyoxyethylene particles in deionized water to prepare a spinning solution, and then performing electrostatic spinning, calcining, cooling, drying and corona charging to obtain the recyclable electret filtering membrane. A surface of the filtering membrane is subjected to water drop rolling cleaning and friction electrification after dust holding, and then dried to realize charge regeneration and reuse. The filtering membrane obtained in the present invention has an initial surface potential of (−600)-(−950) V, the potential can be regenerated to (−700)-(−1000) V by water drop rolling and electrification after dust holding, the charge recovery rate is 90%-125%, the dust removal rate is 90%-100%, and the filtering efficiency for PM2.5 is equal to or greater than 94%.
-
35.发明授权公开(公告)号：US12017188B2
公开(公告)日：2024-06-25
申请号：US17524572
申请日：2021-11-11
IPC分类号： B01D69/14 , B01D61/02 , B01D61/14 , B01D67/00 , B01D69/12 , B01D71/34 , B01D71/56 , B01D71/60 , C02F1/28 , C02F1/44 , C02F101/20
CPC分类号： B01D69/141 , B01D61/145 , B01D67/0006 , B01D67/0011 , B01D69/12 , B01D69/125 , B01D71/60 , C02F1/285 , C02F1/444 , B01D61/025 , B01D67/0009 , B01D71/34 , B01D71/56 , B01D2323/30 , B01D2323/39 , B01D2323/42 , C02F2101/20
摘要： Described herein are mixed matrix filtration membranes and related, dendrimers, dendrimer particles, compositions, methods and systems and in particular mixed matrix filtration membranes with an embedded dendrimer particles and related compositions, methods, and systems wherein each dendrimer particle comprises at least two dendrimers each having at least two core chemical moieties having a core multiplicity Nc; branch cell units attached to the core chemical moiety or one to another, with the branch cell units attached one to another having a branch cells multiplicity Nb; and a number of surface functional groups Z presented on terminal branch cell units, wherein Z=NcNbG with G≤3.
-
公开(公告)号：US11987594B1
公开(公告)日：2024-05-21
申请号：US17956226
申请日：2022-09-29
IPC分类号： B01J31/22 , B01D53/58 , B01D53/62 , B01D67/00 , B01D69/12 , B01D71/02 , B01D71/82 , B01J31/16 , C07F1/08
CPC分类号： C07F1/08 , B01D53/58 , B01D53/62 , B01D67/0079 , B01D69/12 , B01D71/022 , B01D71/82 , B01D2257/406 , B01D2257/504 , B01D2257/93 , B01D2258/0283 , B01D2323/39
摘要： A composition having the structure of formula I:
[R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+ (I)
is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>x>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.-
公开(公告)号：US20240001303A1
公开(公告)日：2024-01-04
申请号：US18254840
申请日：2021-12-07
发明人： Ji Yoon LEE , Young Seok OH , Ah Reum LEE
IPC分类号： B01D63/02 , B01D69/08 , B01D69/12 , H01M8/04119
CPC分类号： B01D63/031 , B01D63/021 , B01D69/087 , B01D69/1216 , H01M8/04149 , B01D2325/02831 , B01D2325/04 , B01D2325/20 , B01D2325/24 , B01D2325/025 , B01D2323/22 , B01D2323/39 , B01D2325/026
摘要： The present invention relates to a hollow fiber membrane including, sequentially from the center: a first layer having a high-density sponge structure including pores with a size of 1 nm or less; a second layer including a finger-shaped structure; and a third layer having a low-density sponge structure including pores with a size of 10 to 1,000 μm, and to a method for producing the hollow fiber membrane.
-
公开(公告)号：US11766643B1
公开(公告)日：2023-09-26
申请号：US18134194
申请日：2023-04-13
IPC分类号： B01D61/02 , B01D61/36 , B01D69/02 , B01D71/10 , B01D71/54 , B01D71/82 , C02F1/44 , C02F103/08 , B01D67/00 , B01D69/12 , B01D71/56
CPC分类号： B01D71/82 , B01D61/025 , B01D61/364 , B01D67/0018 , B01D69/02 , B01D69/1251 , B01D71/10 , B01D71/54 , B01D71/56 , C02F1/441 , C02F1/447 , B01D2323/36 , B01D2323/39 , B01D2323/46 , B01D2323/56 , B01D2325/026 , B01D2325/02831 , B01D2325/06 , B01D2325/26 , B01D2325/38 , C02F2103/08
摘要： A hydrophobic biofilm membrane modified with a spiropolyurethane may be used for desalination of salt water to fresh water. The spiropolyurethane component of the membrane can produce a hydrophobic spin membrane boundary which attracts saline water, and where the hydrophobic spin membrane boundary can comprise a hinge-like motion for capture of salt molecules via a loose pore-gate spongy membrane surface texture while allowing desalinated water to flow through the porous membrane. The membrane is useful in both reverse osmosis (RO) and membrane distillation (MD) separations, including the desalination.
-
39.发明授权公开(公告)号：US11724234B2
公开(公告)日：2023-08-15
申请号：US16329653
申请日：2016-08-31
发明人： Rajesh Sahadevan , Todd J. Menkhaus , Hao Fong
CPC分类号： B01D69/125 , B01D67/0079 , B01D69/10 , B01D69/12 , B01D69/148 , B01D71/56 , B01D2323/26 , B01D2323/30 , B01D2323/39 , B01D2323/40 , B01D2325/02
摘要： This invention relates thin film nanocomposites (TFNCs) and methods of preparing the same by molecular layer-by-layer assembly. The TFNCs comprise a porous nanofibrous support first layer coated with a mid-layer having an outer separating layer, wherein the out separating layer has one or more bilayers or trilayers. The TFNCs can be particularly suitable for use as filtration membranes for the separation of dissolved components from fluids such as ultrafiltration, nanofiltration, and reverse osmosis. Thus, embodiments of the invention also include filtration systems and methods of filtering.
-
公开(公告)号：US20180345227A1
公开(公告)日：2018-12-06
申请号：US15995677
申请日：2018-06-01
发明人： Shihong Lin , Zhangxin Wang , Yu-Xi Huang
CPC分类号： B01D69/12 , B01D61/364 , B01D67/0002 , B01D67/0088 , B01D67/0093 , B01D69/02 , B01D69/148 , B01D71/26 , B01D71/34 , B01D71/36 , B01D2311/2669 , B01D2323/04 , B01D2323/39 , B01D2325/02 , B01D2325/06 , B01D2325/26 , B01D2325/38 , B01D2325/40 , B01D2325/48
摘要： Disclosed herein are composite membranes comprising an omniphobic substrate having a reentrant structure. The omniphobic substrate comprises a plurality of pores, the plurality of pores forming the reentrant structure. The omniphobic substrate further comprises a surface, the surface being coated with a dual functional layer that is hydrophilic in air and oleophobic under water, such that the composite membrane has a top portion and a bottom portion, the top portion comprising the coated surface of the omniphobic substrate, such that the top portion of the composite membrane is hydrophilic in air and oleophobic under water and the bottom portion of the composite membrane is omniphobic. The composite membrane can be antiwetting and/or antifouling in the presence of a hydrophobic contaminant, an amphiphilic contaminant, or a combination thereof. The composite membranes can be used for membrane distillation of a contaminated brine solution.
-
-
-
-
-
-
-
-
-
搜索结果
188 条记录 (耗时 0.016 秒)
