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WO/2021/109708A1 |
Provided are a carbon molecular sieve membrane and a preparation method therefor. In the present invention, by subjecting a polyetherimide and a polymer with a similar structure to a series of treatments followed by controlled pyrolysis,...
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WO/2021/110468A1 |
A porous membrane obtainable by a process comprising curing a composition comprising: (i) cross-linking agent(s); (ii) monomer(s) comprising one polymerisable group and at least one ligand group; (iii) inert solvent(s); and (iv) polymeri...
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WO/2021/109621A1 |
A polyamide reverse osmosis membrane and a production method therefor. The polyamide contains a structural unit derived from a sulfonated phenylenediamine monomer, and a structural unit derived from an acyl chloride monomer, and an optio...
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WO/2021/113202A1 |
A method for making a gas separation membrane comprises dissolving and mixing poly(etherb-amide)(Pebax) copolymer and acrylate-terminated polyethylene glycol oligomers (PEGDA) in a solvent, casting the polymer solution into a mold, remov...
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WO/2021/105838A1 |
Hollow fiber membranes, membrane contactors, and related production and use methods. The asymmetric hollow fiber membranes include a porous substrate having a multiplicity of pores and including at least one semi-crystalline thermoplasti...
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WO/2021/104937A1 |
Method for producing a nano-porous membrane (1) with one or up to four graphene layers (2), pores (3) in the membrane having an average pore size in the range of 0.2-50 or 0.3-10 nm, wherein the method comprises the following steps: a) g...
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WO/2021/104338A1 |
A method of synthesizing a molecular sieve membrane by employing successive generations comprises a step of precoating with a crystal seed, in which a residual reaction liquid obtained from a crystallization reaction is used as a crystal...
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WO/2021/102860A1 |
Disclosed is a conductive membrane and a preparation method thereof, belonging to the technical field of membrane separation. The conductive membrane provided in the present application comprises a porous base membrane layer, a porous in...
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WO/2021/108199A1 |
This disclosure provides a sorbent for at least one metal. The sorbent includes a core particle and a ceramic nanoparticulate cation exchanger for at least one metal that is disposed about the core particle. The core particle is chosen f...
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WO/2021/101995A1 |
The present application relates to a multizone, unsupported, microporous, high throughput membrane. The membrane includes a first microporous zone, a second microporous zone, and a third microporous zone, where the third microporous zone...
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WO/2021/101987A1 |
The present application relates to an unsupported, permanently hydrophilic filtration membrane, and its method of formation. The membrane comprises a polymeric matrix material and a cross-linked polyoxazoline hydrophilic additive blended...
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WO/2021/099522A1 |
Disclosed are methods for coupling a ligand to a composite material. Covalent bonds are formed between functionalized composite materials and ligands as a ligand solution flows through or across the composite materials. The composite mat...
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WO/2021/097819A1 |
A superhydrophobic membrane and a preparation method therefor, and a method for concentrating and recycling MDI waste brine. The method for concentrating and recycling MDI waste brine comprises: 1) performing two-phase separation on MDI ...
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WO/2021/099776A1 |
A filter element for filtering a fluid is described. The filter element comprises diamond particles fixed to a filter substrate. Also described is a method for the manufacture of the filter element and a filtration device comprising the ...
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WO/2021/093001A1 |
A method for preparing a nanofiltration membrane and a nanofiltration membrane prepared therefrom, the method comprising the following steps: dissolving a polymer in a solvent to prepare a polymer solution, and curing the polymer solutio...
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WO/2021/097221A1 |
Ammonia is made in a system that includes a conversion reactor for performing a Haber- Bosch process. Effluent streams from the conversion reactor, which include an ammonia component and excess hydrogen and nitrogen reactants, are fed to...
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WO/2021/096426A1 |
There is provided a multi-layered membrane for separating components in an aqueous sample, comprising a porous layer for separating or retaining at least one component from said aqueous sample therein, and an absorbent layer comprising a...
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WO/2021/091476A1 |
A separation membrane for water treatment, a method for manufacturing the same and a portable liquid container comprising the separation membrane as filter, wherein the bipolar separation membrane comprises: a support membrane over which...
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WO/2021/090217A1 |
The present disclosure is related to a polymeric membrane, comprising a modified surface obtained from coating with hydrophilic monomers and curing the hydrophilic monomers with actinic irradiation, preferably UV light, wherein the hydro...
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WO/2021/090215A1 |
The present disclosure is related to a polymeric membrane, comprising a modified surface obtained from coating with hydrophilic monomers and curing the hydrophilic monomers with electron beam, wherein the hydrophilic monomers comprise at...
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WO/2021/088665A1 |
An antifouling and hydrophilic polyethersulfone ultrafiltration membrane and a preparation method therefor. By using a Co-γ radiation grafting chemical modification method, an unsaturated bond-containing ionic liquid linked by chemical ...
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WO/2021/083162A1 |
Disclosed in the present invention are a polymer-based film, a preparation method therefor, and use thereof. The film has a loofah-like structure, the loofah-like structure comprises a fibrous framework structure formed by three-dimensio...
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WO/2021/085766A1 |
Provided are a spiral wound-type separation membrane module and a method of manufacturing the same. A spiral wound-type separation membrane module according to an embodiment of the present invention comprises: an outlet pipe; a filter as...
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WO/2021/077966A1 |
A microporous inorganic filter membrane. An inorganic filter membrane is prepared by a urease active microbial calcium carbonate composite system. The urease active microbial calcium carbonate composite system is prepared, and the hydrol...
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WO/2021/079867A1 |
Provided is a desalination performance restoring agent for a cellulose acetate membrane, the agent containing a solvent and a modified polyvinyl alcohol mixed in the solvent. The modified polyvinyl alcohol contains a modified polyvinyl a...
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WO/2021/074229A1 |
The present invention relates to a method for the manufacture of a membrane system including a porous membrane formed from a first polymer and particles of at least one second polymer different from the first polymer.
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WO/2021/074401A1 |
The invention relates to methods for the preparation of highly crystalline poly(triazine imide) in the form of platelets, atom-thick layers or membranes thereof and resulting products thereof, in particular useful for the preparation of ...
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WO/2021/076096A1 |
A composite that includes an expanded polytetrafluoroethylene (ePTFE) membrane having a porous microstructure. The porous microstructure of the ePTFE membrane is impregnated with a stiffening polymer. An acoustic device assembly that inc...
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WO/2021/073100A1 |
A method for preparing a high-strength ceramic filter membrane, comprising: heating support ceramic aggregate particles in a vacuum state to 100-300℃ to dry same for 24-72 h; then mixing pre-prepared dispersed nano sintering aids with ...
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WO/2021/071527A1 |
A method including contacting a contaminated aqueous stream including water and one or more contaminants with a coated porous substrate including a porous substrate coated with a hydrophilic and oleophobic coating to provide a treated wa...
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WO/2021/068292A1 |
Disclosed are a graphene oxide membrane having tent-shaped nanostructures, a preparation method therefor and the use thereof. An improved filtration assembly method is established, so that the reliable preparation of an ultra-thin graphe...
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WO/2021/071425A1 |
There is provided a multi-layered membrane comprising a top layer, a bottom layer, and a spacer layer; wherein said spacer layer is interposed between said top layer and said bottom layer; wherein said top layer, said bottom layer and sa...
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WO/2021/069690A1 |
The present invention relates to a porous polypropylene film for breathable film applications, such as sterilisable packaging, comprising polypropylene and a β- nucleating agent, wherein the film has a porosity of 30 to 60%, a void leng...
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WO/2021/071528A1 |
A method including contacting a stream including water with a coated porous substrate including a porous substrate coated with a hydrophilic and oleophobic coating to produce a treated water including water that passes through the coated...
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WO/2021/071509A1 |
Systems and methods using: a membrane unit to treat fluids recovered from an oil and gas well are provided. The membrane unit may include a membrane having a porous substrate at. least partially coated with graphene oxide, making the mem...
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WO/2021/066742A1 |
Disclosed herein is a polycrystalline metal-organic framework membrane comprising a substrate material having a surface and a polycrystalline metal-organic framework attached to the surface of the substrate material, wherein the polycrys...
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WO/2021/066773A1 |
The invention is related to integrating aquaporin Z protein addition to the outer surface of hollow fiber membranes and the production method of aquaporin Z integrated hollow fiber membranes using different hollow fiber support membranes...
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WO/2021/063426A1 |
A metal-organic framework glass membrane and a preparation method therefor. The preparation method comprises: a step of heating a crystalline metal-organic framework material at a rate of 1-15°C/min until reaching the melting temperatur...
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WO/2021/060328A1 |
The purpose of the present invention is to provide: a polytetrafluoroethylene porous film having high strength, high porosity, small pore diameter and thin film thickness; and a method for producing the same. The polytetrafluoroethylen...
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WO/2021/060887A1 |
The present invention relates to a separator membrane having a hierarchical structure, a production method therefor and a xylene separation method using same, and to: a separator membrane having a hierarchical structure comprising mesopo...
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WO/2021/054626A1 |
The present invention relates to a reverse osmosis membrane and a method for manufacturing same and, more particularly, to a highly durable reverse osmosis membrane in which the interlayer adhesion in a separator membrane is excellent wh...
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WO/2021/048358A1 |
The present invention relates to the field of fibrous materials, more in particular comprising a cross-linkable urethane-based polymer (CUP) and an oligomeric or macromonomeric urethane- based cross-linker. The present invention also pro...
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WO/2021/047205A1 |
Disclosed is a method for preparing a ceramic nanofiltration membrane, wherein a complete and flawless ceramic nanofiltration membrane is prepared by means of a modified sol-gel method combined with a hydrothermal method. Glycerol is add...
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WO/2021/047206A1 |
A preparation method for a zirconium oxide-titanium oxide composite ultrafiltration membrane. The method comprises: using a Ti-Zr composite sol prepared by means of a sol-gel method as a precursor, then performing processing by means of ...
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WO/2021/041514A1 |
Methods of nonsolvent induced film deposition for making polymer films, mixed matrix membranes, and related coatings, intermediates, laminates and composite membranes. Nanoparticles, such as metal-organic framework nanoparticles, may be ...
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WO/2021/038021A1 |
The invention relates to a composite material comprising a nonwoven layer (i) comprising fibres of a first thermoplastic elastomer having meshes with a mesh size in the range from 10 to 100 µm, determined by means of scanning electron m...
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WO/2021/036716A1 |
The present invention provides a super-wet surface and a preparation method therefor and an application thereof. The super-wet surface is a polypropylene surface, on which a hydrophilic side group is grafted, having a micro-nano structur...
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WO/2021/036879A1 |
The present invention relates to a method for preparing a silicon dioxide-polyether sulfone conductive ultrafiltration membrane, an ultrafiltration membrane obtained thereby and the use thereof. In the present invention, hydrophilic carb...
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WO/2021/041512A1 |
Disclosed herein are mixed matrix membranes, the mixed matrix membranes comprising a metal organic framework dispersed in a continuous polymer phase and methods of making and use thereof. The mixed matrix membranes can comprise a plurali...
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WO/2021/031675A1 |
The present invention relates to a membrane modification method for improving liquid membrane separation of carbon dioxide. The method is: grafting organic matter containing an amine group on a membrane material, then loading water into ...
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