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WO/2021/262873A1 |
Provided are certain membranes useful in the filtration of liquids and removal of various contaminants therein. In certain aspects the membranes have as one component a polyamide such as Nylon 11 and/or Nylon 12. Also provided is methodo...
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WO/2021/256393A1 |
[Problem] The present invention addresses the problem of providing a composite semipermeable membrane which is capable of stably exhibiting high water permeability and separation characteristics. [Solution] A composite semipermeable memb...
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WO/2021/254820A1 |
The present invention relates to a solution comprising at least one sulfone polymer, at least one water-soluble polymer and gamma-valerolactone (4,5-Dihydro-5-methyl-2(3H)-furanone, CAS number 108-29-2, formula), the process of making a ...
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WO/2021/253882A1 |
A dual hydrophilic polyethylene ultrafiltration membrane and a preparation method therefor. A chitosan (or derivative thereof)/nano-silica polyethylene ultrafiltration membrane is prepared by means of a combination of amine and hydroxyl ...
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WO/2021/256237A1 |
A polyimide compound contains a repeat unit that has an aromatic diamine component of prescribed structure, in which a side chain benzylic position has been regioselectively brominated. A gas separation membrane has a gas separation laye...
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WO/2021/252074A1 |
Composite materials for removing hydrophobic components from a fluid include a porous matrix polymer, carbon nanotubes grafted to surfaces of the porous matrix polymer, and polystyrene chains grafted to the carbon nanotubes. Examples of ...
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WO/2021/248900A1 |
Disclosed are a high-flux modified titanium oxide composite ultrafiltration membrane and application thereof; in the present invention, cysteic acid is selected to modify the surface of a membrane layer; the carboxyl group on the cysteic...
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WO/2021/248896A1 |
A preparation method for a titania ceramic ultrafiltration membrane. A sol-gel process is combined with hydrothermal processing of a microemulsion medium to prepare a titania nanosol. An additive is introduced into a titania sol to form ...
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WO/2021/250639A1 |
The present invention relates to a device comprising a mixed matrix membrane, wherein said mixed matrix membrane is a polymeric membrane in which at least one metal-organic framework (MOF) having formula (I) is dispersed: XIICuII 6[(S,S)...
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WO/2021/248899A1 |
A graphene oxide-modified polydopamine composite nanofiltration membrane and a preparation method therefor are disclosed. The invention comprises a polyethersulfone support and an organic functional layer disposed thereon. The organic fu...
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WO/2021/251550A1 |
The present invention relates to a high-purity oxygen generation apparatus using RVSA. The high-purity oxygen generation apparatus according to the present invention is operated using RVSA, which uses the nitrogen adsorption of zeolite t...
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WO/2021/251144A1 |
The tube unit of the present invention comprises multiple tubes, a binding part that binds the end parts of the multiple tubes, and a cylindrical body that is inserted into each of the end parts of the multiple tubes and supports each of...
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WO/2021/248897A1 |
A preparation method for a zirconia ceramic ultrafiltration membrane. In the method, a sol-gel process is organically combined with hydrothermal processing of a microemulsion medium. A sol formed by means of the sol-gel process serves as...
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WO/2021/245505A1 |
The invention relates to an apparatus for separating hydrogen from a gas mixture and to a process for the production thereof, which apparatus forms a vessel (12) which defines an inlet collection space (14) for the gas mixture (MG) and a...
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WO/2021/248028A1 |
Disclosed are hollow fibers suitable for use in dialysis in an outside-in configuration. For such fibers, it is desirable that the fiber have a low albumin sieving coefficient and have a permeability high enough to be considered a High F...
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WO/2021/246629A1 |
The present invention relates to an organic solvent-soluble copolymer polyester, a composition that is for forming an ultrafiltration membrane and comprises same, and a high water permeability reverse osmosis membrane prepared therefrom....
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WO/2021/244117A1 |
The present invention provides a method for fabricating thin film composite membrane includes: placing a microporous support on a collector; spraying a first solution onto a surface of the microporous support distal to the collector comp...
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WO/2021/245501A1 |
Embodiments include nanofilms comprising the reaction product of a natural building block type A including at least two functional groups and a natural building block type B including at least three functional groups, wherein the natural...
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WO/2021/049923A9 |
The invention relates to means of purifying acid pollution of gaseous fuel combustion products, in particular, from NOx and CO2. The claimed process for separation of a selected gaseous component from a gas mixture comprises the followin...
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WO/2021/246046A1 |
The separation membrane module (21) comprises: a separation membrane composite (1) having a support (11) and a separation membrane (12) provided on the support (11); a housing container (22) for housing the separation membrane composite ...
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WO/2021/245464A1 |
The present invention relates to a porous composite membrane comprising: - graphene oxide sheets; and - nanoparticles bound to a surface of the graphene oxide sheets solely by electrostatic and/or Van der Waals interactions. The present ...
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WO/2021/245271A1 |
A spiral wound membrane element comprising a permeate collector to which are mounted a plurality of membrane envelopes; wherein the membrane envelopes comprise a membrane and a permeate carrier; wherein the permeate carrier is in fluid c...
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WO/2021/245137A1 |
The present invention relates to a method for producing a polyelectrolyte complex (PEC) membrane having a predetermined porosity via salt dilution induced phase separation, in which a liquid polymer solution (P) containing polyanions (A)...
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WO/2021/240149A1 |
There is described a separation membrane, suitably for oil and water separation. The membrane comprising a porous substrate layer and an active layer arranged over at least a part of the substrate layer. The active layer comprises a hydr...
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WO/2021/240917A1 |
This separation membrane composite body comprises a porous support body, and a separation membrane formed on the support body. The separation membrane comprises small pores (121). When Sm represents the surface area of the separation mem...
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WO/2021/240150A1 |
There is described as a separation membrane, such as for pressure-assisted oil and water separation. The membrane comprises a porous substrate layer and an active layer arranged over at least a part of the substrate layer. The active lay...
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WO/2021/241742A1 |
The present invention relates to a method for separating and recovering a cobalt salt and a nickel salt, the method including a separation step for separating a cobalt salt and a nickel salt from a rare metal-containing aqueous solution ...
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WO/2021/241514A1 |
The present invention provides a porous film having a relief structure provided with protrusions and recesses on at least one surface. In a plane located at a height of 50 nm from a reference surface of the surface, the average number de...
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WO/2021/235168A1 |
Provided is a tubular separation membrane suitable for treating oil-containing wastewater. The tubular separation membrane comprises cellulose acetate, has a membrane thickness of 0.05-0.4 mm, and satisfies the relationships given in the...
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WO/2021/236221A1 |
Provided herein are gas permeable membranes comprising an amine-containing selective layer on top of a gas permeable polymer support as well as methods of making and using thereof. The membranes are useful for the separation of CO2 from ...
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WO/2021/235554A1 |
The present invention relates to a separation apparatus or system using a separation membrane, said separation apparatus or system serving as a means for separating ions of impurities other than hypochlorous acid from an aqueous solution...
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WO/2021/236220A1 |
Membranes, methods of making the membranes, and methods of using the membranes are described herein. The membrane can include a support layer; and a selective polymer layer disposed on the support layer. The selective polymer layer can i...
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WO/2021/232649A1 |
A preparation method for a MABR hollow fiber composite membrane, comprising the following steps: (1) pre-treating a base membrane: soaking the base membrane in ethanol, immersing the base membrane in clear water, and removing residual wa...
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WO/2021/235118A1 |
A porous film laminate according to the present disclosure comprises: a porous supporting layer; and a porous film which is stacked on one surface of the supporting layer and is composed primarily of polytetrafluoroethylene. The porous f...
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WO/2021/236425A1 |
In at least one embodiment, a building material comprising a porous membrane having a moderate to high water vapor permeability and high liquid water penetration resistance is disclosed. The building material may be used in building appl...
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WO/2021/232018A1 |
Disclosed are copolymers, comprising a plurality of zwitterionic repeat units, and a plurality of hydrophobic repeat units, wherein the hydrophobic repeat units each independently comprises a cross-linkable moiety; the cross-linked copol...
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WO/2021/230819A1 |
There is provided a semi-crystalline polymer membrane, the membrane being a single-layer membrane and superwettable without provision of a coating or additives. There is also provided a method of forming the membrane comprising: depositi...
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WO/2021/230265A1 |
A hydrogen gas separator (100, 100A, 100B, 100C) is provided with: an inflow part (10) for intake of a mixed gas containing hydrogen gas; a porous membrane (40, 40-1, 40-2, 40-3) that is permeated by hydrogen as a result of contacting th...
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WO/2021/230622A1 |
The present invention can be applied to a technical field related to secondary batteries and, for example, relates to a separator for a lithium ion secondary battery, a manufacturing method therefor, and a secondary battery using same. T...
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WO/2021/230823A1 |
There is provided a graphene oxide-based membrane comprising a substrate and a plurality of layers of single-layered graphene oxide formed on the substrate, each of the plurality of layers of single-layered graphene oxide is functionalis...
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WO/2021/230820A1 |
Herein disclosed is a method of producing a silicalite membrane, which includes heating an aqueous solution that includes a dopant precursor and structure-directing template agents to form silicalite seeds incorporated with a dopant, dep...
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WO/2021/229925A1 |
The present invention addresses the problem of providing: a filtration material for an immersion-type filtration cartridge, the filtration material having not only exceptional collection performance but also a high processing quantity wi...
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WO/2021/231926A1 |
The present disclosure relates to a composite membrane formed by lamination of two or more separate porous polymeric layers, as well as to a method and system for lamination. Advantageously, the resulting composite is a single layer, bei...
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WO/2021/229364A1 |
A photothermoelectric sensor (1700) for transforming photothermal energy into electrical energy includes a housing (1702) having an internal chamber (1710); an MXene membrane (100, 1200) located inside the housing (1702) and positioned t...
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WO/2021/230985A1 |
Provided herein are molecular sieve membranes (100) for separating hydrocarbons of a lube feed stock into a permeate and a retentate based on molecular shape. The molecular sieve membranes comprise one or more layers of size-selective ca...
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WO/2021/227330A1 |
A solvent-resistant polymer nanofiltration membrane, a preparation method therefor, and the use thereof. The preparation method therefor comprises the following steps: subjecting an diamine monomer and a dianhydride monomer to cyclizatio...
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WO/2021/229327A1 |
A chromatography device having a housing having an inlet and an outlet. At least two layers of media disposed between the inlet and the outlet inside of the housing forming a media stack, with at least one of the layers comprising a func...
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WO/2021/230082A1 |
A hollow fiber membrane module 1 comprises a first hollow fiber membrane in which a sieve coefficient relative to dextran having a molecular weight of 300-1000 kDa (inclusive) is 0.12-0.28 (inclusive), the first hollow fiber membrane ads...
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WO/2021/226227A1 |
Provided is a porous membrane including polytetrafluoroethylene and/or modified polytetrafluoroethylene having a small pore diameter, thin film thickness, high porosity, and high strength; and a method for manufacturing the same. The por...
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WO/2021/225315A1 |
Embodiments of the present invention relate to a new concept complex generator capable of high efficiency power generation by means of applying a polar solution to a MXene layer-coated hydrophilic fiber membrane complex generator, and to...
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