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WO/2020/006019A1 |
The disclosed technology relates to flat sheet porous membranes prepared from a dope solution containing a polymer of vinyl chloride, such as chlorinated polyvinyl chloride.
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WO/2020/000086A1 |
A method for making a graphene membrane includes applying a suspension of graphene platelets in a fluid onto a porous substrate, and applying a pressure differential to force the fluid through the substrate to yield a filtered fluid whil...
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WO/2020/005590A1 |
What is disclosed is a mass selective fluid bandpass filter. This filter provides for selecting gas molecules of a specific mass from a gas sample containing molecules of two or more mass species. This filter provides a means of operatio...
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WO/2020/005858A1 |
A membrane filtration system includes a frame, an electrically conductive membrane having a permeate side affixed to the frame, and a vacuum pump connected to the frame to apply a negative pressure to the permeate side of the electricall...
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WO/2020/002185A1 |
Embodiments of the present invention relate to a nanofiltration composite membrane for use to purify water, the methods for preparing said nanofiltration composite membranes and to the nanofiltration composite membranes prepared accordin...
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WO/2020/004462A1 |
The present invention addresses the problem of providing a semipermeable membrane support for membrane bioreactor treatments that has excellent solvent resistance and is not susceptible to decreased strength when coated with a coating so...
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WO/2020/003216A1 |
The present disclosure is related to a polymeric membrane having a first surface and a second surface and a wall extending between the first and second surface, the membrane comprising pores on the first and second surfaces and throughou...
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WO/2019/244831A1 |
The present invention provides: a cellulose derivative which enables the achievement of a film that has higher chlorine resistance and higher alkali resistance in comparison to cellulose triacetate films; and a molded body which is obtai...
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WO/2019/245151A1 |
The present specification relates to a method for quantifying an amine compound constituting a separator active layer prior to preparation of the separator active layer, a method for quantifying a polyamide or an unreacted amine compound...
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WO/2019/246496A1 |
A method of providing fouling control in a membrane system includes generating a sacrificial protective layer (PL) on a surface of a membrane of the membrane system by coating the membrane with at least one polyelectrolyte layer, removin...
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WO/2019/244211A1 |
This acidic gas separation device comprises: a first separation device that has an inorganic separation membrane and that separates, via the inorganic separation membrane, a gaseous hydrocarbon fluid containing an acidic gas into a first...
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WO/2019/245296A1 |
The present invention relates to a composition for interfacial polymerization of a polyamide, a manufacturing method for a water treatment separation membrane using same, and a water treatment separation membrane, wherein the composition...
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WO/2019/243529A1 |
The present invention relates to a polymer electrolyte comprising at least one organic solvent and at least one aromatic ionomer, wherein: - the organic solvent is a plasticizing solvent with a boiling point higher than 100°C and an ele...
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WO/2019/240472A1 |
Disclosed is an electroconductive separation membrane for water treatment, the membrane comprising: a metal filter support in a fibrous form; a metal oxide coat layer deposited on the support; and a composite metal oxide catalytic layer ...
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WO/2019/241602A1 |
Materials that can be templated by one or more of biological material and biologically-derived material, structures including such materials, and methods of forming and using the materials and structures are disclosed. Exemplary material...
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WO/2019/240533A1 |
The present specification relates to a composition for polyamide interfacial polymerization, a method for manufacturing a water treatment separation membrane by using same, and a water treatment separation membrane, the composition compr...
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WO/2019/241722A1 |
A multistage membrane system and a process for treating a gas stream is provided in which the multistage membrane system comprises at least two membrane units wherein a first stage membrane unit comprises a polymeric membrane and a secon...
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WO/2019/240254A1 |
According to the present invention, there is provided a hydrophilic porous membrane that includes: a porous membrane; and a hydroxyalkyl cellulose (preferably hydroxypropyl cellulose) held on the porous membrane, the hydroxyalkyl cellulo...
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WO/2019/236144A1 |
This invention discloses a thin-film composite thin-film composite membrane that is useful for the separation of solute species in organic solvents and particularly in aggressive, high boiling-point, polar-aprotic solvents such as dimeth...
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WO/2019/235315A1 |
The purpose of the present invention is to stably maintain high separation performance of a separation membrane having a separation layer comprising a compact carbon layer. The present invention is a separation membrane having a separati...
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WO/2019/236116A1 |
Described herein are crosslinked graphene oxide and polycarboxylic acid based composite membranes that provide selective resistance for gases while providing water vapor permeability. Such composite membranes have a high water/air select...
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WO/2019/235441A1 |
The present invention provides: a semipermeable composite membrane which is reduced in burden on the environment; and a method for producing this semipermeable composite membrane. A semipermeable composite membrane 100 according to the p...
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WO/2019/236533A1 |
The invention concerns polymer microfiltration or ultrafiltration porous membranes, intended for the treatment of effluents. More specifically, the invention concerns filtration membranes having at least one surface coated with a fluorop...
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WO/2019/229718A1 |
A perfluorocarbon-free membrane composed of a non-perfluorocarbon material having a first side and a second side opposite of the first side. The perfluorocarbon-free membrane also includes a plurality of pores, each having an inlet and o...
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WO/2019/230983A1 |
The filter medium of the present invention comprises a porous polytetrafluoroethylene film and an air-permeable base layer, has a pressure loss PLF less than 40 Pa when air is passed therethrough at a linear velocity of 5.3 cm/sec, and h...
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WO/2019/229667A1 |
The present disclosure provides a hydrophilic, integrally asymmetric, semi-permeable hollow-fiber membrane made from a hydrophobic aromatic sulfone polymer and at least one hydrophilic polymer, the membrane comprising an inner surface fa...
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WO/2019/230984A1 |
A filter medium according to the present disclosure is provided with a base material layer having air permeability; and the base material layer has a surface modified by polytetrafluoroethylene fibrils. The modified surface of the base m...
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WO/2019/232074A1 |
The invention includes compositions and methods for promoting gas mixtures separations, such as a carbon dioxide and methane mixture. The composition of the invention is based on a curable polymerized room-temperature ionic liquid [poly(...
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WO/2019/229680A1 |
A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ≥110oC. C is a rub...
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WO/2019/225641A1 |
This hydrogen permeable membrane comprises an alloy film which contains Pd and Cu. This alloy film is an electrolytic plating film and has a BCC structure; and the Pd:Cu ratio (atomic ratio) in this alloy film is from 4:6 to 6:4.
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WO/2019/225848A1 |
The present disclosure relates to a method for preparing an aramid nanofiber dispersion. More specifically, the present invention relates to a method for preparing aramid nanofibers in a short time from aromatic polyamide-based polymers ...
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WO/2019/225730A1 |
A porous hollow fiber membrane in which a polysulfone-based polymer is used as a main component, wherein the porous hollow fiber membrane has an asymmetrical structure in which the inner-surface side is fine and the outer-surface side is...
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WO/2019/222303A1 |
A pervaporation membrane formed on a porous support containing a composition encompassing a polysiloxane, a crosslinker and a catalyst are disclosed and claimed. Also disclosed are the fabrication of membranes which exhibit unique separa...
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WO/2019/218898A1 |
A crosslinked protein-based separation membrane and an application thereof. The crosslinked protein-based separation membrane is a separation membrane formed by crosslinking, using a crosslinker, a two-dimensional nanofilm formed by phas...
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WO/2019/220694A1 |
A hollow-fiber membrane according to one aspect of the present disclosure is provided with: a porous tube-form support body layer having polytetrafluoroethylene as a main component; and a porous filtration layer having polytetrafluoroeth...
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WO/2019/221200A1 |
The present invention is a method for manufacturing a gas separation membrane in which microparticles are uniformly dispersed in resin, the method comprising the following steps (A) and (B): (A) a step for producing a master batch by mix...
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WO/2019/220960A1 |
The present invention discloses a microporous film comprising an object obtained by stretching a fluororesin film, wherein the fluororesin film comprises an object obtained by sintering a plurality of core/shell particles including fluor...
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WO/2019/214581A1 |
Disclosed is an electrospun polymeric nanofiber. The nanofiber includes a poly (chlorotrifluoroethylene-co-vinylidenefluoride) ( "poly (CTFE-co-VDF) " ) copolymer. Further disclosed is a method for manufacturing a polymeric nanofiber. Th...
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WO/2019/216656A1 |
The present specification relates to a reverse osmosis membrane comprising: a support layer containing a support and a polysulfone layer; and an active layer, and having a compressive modulus of 20-40 MPa, to a manufacturing method there...
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WO/2019/216148A1 |
The present invention provides a hollow-fiber membrane module that, during filtration operations, is less likely to cause fouling of a hollow-fiber membrane, enables stable filtration, and has excellent washability of the hollow-fiber me...
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WO/2019/216147A1 |
To provide an external pressure-type hollow-fiber membrane module that, during filtration operations, is less likely to cause fouling to the hollow-fiber membrane and exhibits excellent performance in cleaning of the hollow-fiber membran...
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WO/2019/212416A1 |
Disclosed herein is a composite material comprising a complex of formula I: {[Cp3M3O(OH)3]4(A)6} (I), wherein A represents a ligand of formula II, and a polyamide. There is also disclosed a thin film nanocomposite membrane, a method of m...
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WO/2019/212359A2 |
The present invention relates to CO2 capture from gas mixtures by use of gas separation membranes. In particular, the invention relates to a gas separation membrane comprising: a gas permeable or porous support layer; and at least one CO...
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WO/2019/212648A1 |
The invention is an improved method of making an improved carbon molecular sieve (CMS) membrane in which a precursor polymer (e.g., polyimide) is pyrolyzed at a pyrolysis temperature to form a CMS membrane that is cooled to ambient tempe...
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WO/2019/212707A1 |
Described are filter membranes coated with a polyamide, filters and filter cartridges that include the filter membranes, and methods of using and making the filter membranes.
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WO/2019/210535A1 |
Disclosed is a porous membrane for water treatment, comprising: a high molecular weight polyethylene, a water-soluble polymer, and an antioxidant, wherein the high molecular weight polyethylene has an average molecular weight between 1.0...
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WO/2019/212889A1 |
Disclosed is a nanoporous membrane including a porous support layer and a selective layer. The selective layer, being deposited on a surface of the porous support layer, has an effective pore size smaller than that of the porous support ...
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WO/2019/212647A1 |
The invention is an improved method of making an improved carbon molecular sieve (CMS) membrane in which a precursor polymer (e.g., polyimide) is pyrolyzed at a pyrolysis temperature to form a CMS membrane that is cooled to ambient tempe...
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WO/2019/211479A2 |
A semipermeable arrangement for use in clinical, agricultural, industrial and/or environmental settings. The semipermeable arrangement has a structural arrangement formed from a material such as ePTFE that has an affinity to a lubricatin...
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WO/2019/212360A1 |
The present invention relates to a CO2 selective gas separation membrane and a method for preparing the gas separation membrane and the use thereof. The CO2 selective gas separation membrane comprises a gas permeable or porous support la...
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