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WO/2023/274750A1 |
The present invention relates to a method for recovery of selectivity of a polyelectrolyte multilayer membrane thereby restoring the retention capability of the polyelectrolyte multilayer membrane. The present invention further relates t...
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WO/2023/274819A1 |
The present invention relates to a composite material which is suitable both for mechanical filtration and for chemical/selective binding/repulsion/exclusion of substances from solutions. The present invention also relates to the use of ...
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WO/2023/276483A1 |
This forward osmosis membrane has a support membrane, and a separation functional layer on the support membrane. The support membrane has a porous support body. After water has been positioned on the separation functional layer side and ...
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WO/2022/270495A1 |
Provided is a reaction system capable of synthesizing an intended product with a high yield while avoiding denaturing of a heat-sensitive compound, by removing byproducts without applying heat and without using a solid adsorbent material...
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WO/2022/268146A1 |
The present application relates to a polyimide random copolymer having a structure as represented by formula (I). The present application also relates to a method for preparing the polyimide random copolymer, a film prepared from the pol...
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WO/2022/270999A1 |
The present invention relates to: a separation membrane with excellent fouling resistance which, by coating the surface of a support with a polymer solution including a hydrophobic polymer, a hydrophilic polymer, and a sulfonated polymer...
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WO/2022/263741A1 |
The invention relates to a method for injecting ceramic particles into a fibrous structure (10) comprising the placement of a fibrous structure (10) in a mold (110), the injection, through one side, of a first suspension comprising a pow...
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WO/2022/261703A1 |
The present invention relates to a filter and a method of making a filter. The filter includes a porous substrate and a graphene oxide membrane and can be used to filter fluids.
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WO/2022/261701A1 |
The present invention relates to a filter and a method of making a filter. The filter includes a porous substrate and a graphene oxide membrane and can be used to filter fluids. The graphene oxide membrane includes a crosslinking additiv...
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WO/2022/265104A1 |
In the present invention, a separation membrane (31) in a concentrator (2) includes a cellulose-acetate-based substrate, and a hole diameter retention agent with which the substrate is coated. The liquid surface rise value of the separat...
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WO/2022/261706A1 |
Disclosed herein is a phenolic-graphene oxide composition comprising phenolic-graphene oxide having a carbon to oxygen (C:O) ratio of 2.1 or greater and 5 or less.
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WO/2022/266136A1 |
In summary, the disclosure provides certain membranes useful as filter materials in the removal of metal ions, metal particulates, and/or organic contaminants from liquid compositions, in particular liquid compositions used in the microe...
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WO/2022/264745A1 |
Provided is a carbon dioxide separation, collection, and utilization system comprising: a regeneration unit which generates, from a solid material that has absorbed or adsorbed carbon dioxide, a gas containing the carbon dioxide and whic...
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WO/2022/258745A1 |
The present invention relates to a method for detecting filter defects on immersed water filters (1) by means of a pressure integrity test. The method is characterized in that the pressure integrity test is started in a state, in which a...
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WO/2022/258261A1 |
The invention relates to a folded filter medium (6) for a filter element (3) comprising a cellulose substrate (29) impregnated with phenolic resin (30) and an ePTFE layer (31) disposed on the cellulose substrate (29).
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WO/2022/261091A1 |
A composite that includes graphene and an interfacially-polymerized polyamide, where the composite is in the form of a self-supporting membrane having a graphene side opposite to a polyamide side, or the composite is in the form of a mic...
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WO/2022/254018A1 |
A continuous liquid-liquid phase separator (100) comprising a porous insert (101) housed concentrically within a non-permeable outer tube (102), the outer tube (102) having an inside surface (103), and wherein the configuration of the ou...
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WO/2022/252484A1 |
Disclosed are a polymer self-supporting nanofilm, a continuous and macro-scale preparation method therefor and an application thereof. The preparation method comprises the following steps: (1) uniformly coating an ionic liquid solution o...
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WO/2022/255055A1 |
This mixed gas separation method involves: a step (step S11) for preparing a separation membrane (12); and a step (step S12) for supplying, to the separation membrane (12), a mixed gas including multiple kinds of gases, and causing a gas...
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WO/2022/255453A1 |
Provided are an air filter medium, a pleat pack, an air filter unit, a mask filtering medium, and a method of recycling air filter medium that allow for reuse with minimal performance loss from performing a sterilization treatment. An ai...
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WO/2022/255877A1 |
The present invention relates to a method for manufacturing a carbon membrane supported on a ceramic support. The present invention also relates to a carbon membrane prepared from hydroquinone on a ceramic tubular support and to the use ...
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WO/2022/253613A1 |
The invention relates to a filter element which is designed to have a pocket-like or tubular shape with an interior extending in a longitudinal direction and which comprises a multilayer structure that has a permeable outer layer, a perm...
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WO/2022/250116A1 |
The present invention addresses the problem of achieving a novel reverse osmosis membrane (more specifically, reverse osmosis composite membrane) that is capable of suppressing biofouling. The problem is solved by using a reverse osmosis...
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WO/2022/249839A1 |
For the purpose of providing a separation membrane which is excellent in terms of low fouling properties, separation performance and water permeability, while having high chemical resistance, a separation membrane according to the presen...
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WO/2022/245080A1 |
The present invention relates to a method for manufacturing a thin film composite membrane for alkaline water electrolysis, and to a thin film composite membrane for alkaline water electrolysis. The present invention can provide a thin f...
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WO/2022/243976A1 |
Provided are methods and materials for preparing a metal-polymer coordination membrane by immersing a pre-formed membrane in a crosslinking bath comprising a non-solvent and a polymer coordinating agent comprising at least one metal, whe...
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WO/2022/246202A1 |
Fiber compositions are provided that incorporate metal organic framework (MOF) materials into the polymeric matrix of the fiber. The metal organic framework materials can be incorporated by including MOF particles into a "dope" or synthe...
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WO/2022/242051A1 |
The present invention relates to the technical field of nanofiltration pretreatment. Specifically disclosed are a novel functional nanofiber back-washable precise filter cartridge filtering apparatus and method. The apparatus comprises a...
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WO/2022/241069A1 |
A fluorinated copolymer having pendant amide functionality is disclosed in an aspect herein. A membrane from the fluorinated copolymer having at least some of the pendant amide functionality hydrolyzed to pendant amine functionality is h...
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WO/2022/239333A1 |
An air-supply module according to one embodiment of the present disclosure can supply a gas to a liquid supplied inside hollow fiber membranes, and is provided with: a case containing a fluororesin as the main component; and a plurality ...
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WO/2022/239873A1 |
A manufacturing system is provided which can convert from carbon dioxide and hydrogen to a methanol and dimethyl ether mixture with high yield. In this CO2 conversion device, for reacting CO2 and hydrogen as raw materials and converting ...
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WO/2022/239843A1 |
[Problem] To provide: an in-liquid substance separation membrane molded body that is made of highly chemical-resistant components, has a high membrane solvent permeation speed, and efficiently separates the substances (e.g., the ionic or...
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WO/2022/234904A1 |
The present invention relates to a cross-linked copolymer, a gas separation membrane comprising same, a method for preparing the cross-linked copolymer, and a method for manufacturing the gas separation membrane, and, more specifically, ...
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WO/2022/236065A1 |
The disclosure provides certain porous membranes comprised of cyclic polyolefin polymers, such as poly(norbornene)s. In one embodiment, a poly(norbornene) polymer is dissolved in tetrahydrofuran, cast into a film and subjected to solvent...
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WO/2022/229748A1 |
A polymeric membrane. The polymeric membrane includes a modified surface obtained from coating with hydrophilic monomers and curing the hydrophilic monomers with electron beam, wherein the polymeric membrane is selected from polyamide me...
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WO/2022/230923A1 |
The present invention uses poly(4-methyl-1-pentene), which is excellent in chemical resistance and gas permeability, to provide a separation membrane having high strength and low leakage while maintaining high gas permeability. Provided ...
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WO/2022/227838A1 |
A preparation method for a hollow fiber inorganic membrane, relating to a preparation method for a hollow fiber inorganic membrane. The objective of the present invention is to solve the problem that the existing membrane technology cann...
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WO/2022/230546A1 |
Provided is a porous polyimide film having an excellent gas permeation rate. The porous film is constituted from a porous material comprising either a polyimide resin or a polyimide resin composition including a polyimide resin and has...
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WO/2022/232329A1 |
Disclosed is a membrane with one or more dry-process porous layers that comprise (1) a polyolefin and (2) a product formed by reacting two components, which may be a compound with one or more carboxy groups and a compound with one or mor...
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WO/2022/229742A1 |
Tetrablock copolymers of formula ABAC are provided that can be used to form porous articles such as porous hollow fibers and porous membranes. Each A block is formed from a vinyl aromatic monomer, the B block is formed from a conjugated ...
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WO/2022/228227A1 |
A high-throughput silicon carbide ceramic filter membrane and a preparation method therefor. A process for directly coating a separation layer for a single time on the basis of a carrier is used, that is, after the carrier is sintered, t...
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WO/2022/228022A1 |
A micro-swelling type biocompatible membrane (1) and a preparation method therefor. The preparation method for the micro-swelling type biocompatible membrane (1) comprises the following steps: the synthesis of a copolymer containing a sk...
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WO/2022/231002A1 |
The present invention relates to a hollow fiber membrane in which the thickness L of a spherical structure layer is 60–500 μm (inclusive), the spherical structure layer has a first surface and a second surface, the average diameter Da...
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WO/2022/229889A1 |
Viral filtration media, an article comprising the viral filtration media, and a method of filtering a virus-containing sample using the viral filtration media, wherein the viral filtration media comprises: a porous substrate comprising a...
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WO/2022/221992A1 |
Hydrophilic vinylidene fluoride copolymers and preparation method thereof are provided. The copolymers comprise recurring units derived from hydrophilic monomers. The use of the same for producing articles characterized by improved perfo...
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WO/2022/224066A1 |
A method of producing a structured MOF composite tape by immobilizing metal chalcogenide particles into a polymer matrix, and then converting the metal chalcogenide into MOF in-situ. In some embodiments, the conversion is from ZnO- PTFE ...
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WO/2022/214341A1 |
The present invention relates to a solution comprising at least one polymer P, at least one water soluble polymer and N-tert-butyl-2-pyrrolidone, the process of making a membrane and the use of this membrane for water treatment.
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WO/2022/215685A1 |
The present invention relates to a method for manufacturing a hollow-fiber membrane by: discharging a spinning stock solution that contains 10–40% by mass of a polysulfone-based resin, 1–30% by mass of polyvinylpyrrolidone, and 1–8...
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WO/2022/209002A1 |
This separation membrane composite body (1) is provided with: a porous supporting body (11); an intermediate membrane (12) which is a polycrystalline membrane that is provided on a surface of the supporting body (11), while having pores ...
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WO/2022/212900A1 |
A filter media comprises a layer of porous material having a patterned outer surface comprising a plurality of structures. Each structure in the plurality has at least a predetermined height based on an expected contaminant and spacing b...
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