METHOD FOR PREPARING A FEEDING INSTANT ASTRAGALUS POLYSACCHARIDE POWDER AND APPLICATION THEREOF

The present application is related to a method for preparing a feeding instant Astragalus polysaccharide powder and an application thereof. The method includes the following steps: adding deionized water at 65° C. to a dreg of Astragalus membranaceus by water extraction and alcohol precipitation, controlling an alcohol volume fraction at 20%, stirring fully to dissolve the dreg, and after a dreg solution cools to room temperature, removing insoluble thermo-sensitive macromolecular proteins, polysaccharides and solid residues by centrifugation at 3500 revolutions per minute to obtain a clear supernatant. Ultrafiltration treatment is performed by hollow fiber membranes on the supernatant obtained after the centrifugation, and 10-100 kDa polysaccharide components are collected. A low-molecular-weight instant Astragalus polysaccharide powder with high immunocompetence is obtained through an interlayer cold air cooling spray drying process, and the content of active polysaccharide is more than ...

MEMBRANE FILTRATION APPARATUS, CONCENTRATION APPARATUS, AND CONCENTRATION METHOD

A membrane filtration apparatus 110 including a membrane 113 that is made from an acid-resistant material, has pores having a pore size capable of capturing microorganisms, and has a surface that has a negative charge in a neutral to alkaline range.

METHOD FOR REMOVING ASPHALTENES, RESINS AND HEAVY METALS FROM CRUDE OIL

Presented is a method for using an ethyl acetate solvent to remove all or most of the asphaltenes, resins and heavy metals from crude oil. The oil is filtered to remove the precipitants and the permeate is then deasphalted oil, rich in ethyl acetate solvent. The ethyl acetate may be recovered by flashed solvent recovery system and recycled back. Filter elements are regenerated with toluene and recovered by a flashed solvent recovery system.

NANO MEMBRANE, NANO MEMBRANE ASSEMBLY, AND METHOD FOR MANUFACTURING NANO MEMBRANE

Disclosed is a nano membrane which has improved dustproofness and thus effectively prevents matter, contaminants/dust, and the like from getting into an electronic device such as a PCB or a MEMS microphone, and has no air and sound permeability degradation. The nano membrane of the present disclosure contains a plurality of pores having an average diameter of 0.5-20 μm, wherein the maximum diameter of each of the pores is 30 μm, the minimum diameter of each of the pores is 0.1 μm, and the porosity of the nano membrane is 50-90%.

IN VITRO RELEASE TESTING (IVRT) DEVICE FOR ORALLY INHALED DRUG PRODUCTS

An in vitro release testing (IVRT) device for orally inhaled drug products, for use in an IVRT apparatus, the device having an air-permeable filter loaded with particulate material representing a dose of an orally inhaled drug product. The device has an upper filter support element and a lower filter support element, the loaded filter being circumferentially retained between the upper and lower support elements, a filter cover to cover the upper surface of the loaded filter, and a filter cover retainer provided to assemble and seal the IVRT device. 111-. (canceled)12. An in vitro release testing (IVRT) device for orally inhaled drug products , for use in an IVRT apparatus , said device comprising an air-permeable filter loaded with particulate material representing a dose of an orally inhaled drug product , said device comprising:an upper filter support element and a lower filter support element , said loaded filter being circumferentially retained between said upper and lower support elements,a filter cover to cover the upper surface of said loaded filter, anda filter cover retainer provided to assemble and seal the IVRT device, said filter cover retainer having a spring to control the compressive load between said lower filter support element, said filter, said upper filter support element and said filter cover.13. A device according to claim 12 , further comprising a holder member receiving said lower filter support element and cooperating with said filter cover retainer for the sealed assembly of the IVRT device.14. A device according to claim 13 , wherein a mesh is provided between said lower filter support element and said loaded filter to cover the lower surface of said loaded filter.15. A device according to claim 13 , wherein said filter cover retainer comprises legs claim 13 , in particular three legs claim 13 , providing a bayonet-type fitting on said holder member.16. A device according to claim 12 , wherein said filter cover retainer cooperates directly ...

BLOOD FILTER ELEMENT AND METHOD FOR THE PRODUCTION OF SAME

RESIN MEMBRANE FILTER AND MANUFACTURING METHOD OF RESIN MEMBRANE FILTER

An object of the present invention is to provide a resin membrane filter having excellent separation accuracy and excellent toughness, and a manufacturing method of the resin membrane filter. The resin membrane filter of the present invention includes a first main surface, a second main surface, and a plurality of through-holes, in which, in the through-hole, in a case where an average area of an opening portion at a position A which is located at a distance of 10% of a thickness of the resin membrane filter from the first main surface is denoted as Sva and an average area of an opening portion at a position B which is located at a distance of 90% of the thickness of the resin membrane filter from the first main surface is denoted as Svb, 0.8≤Sva/Svb≤1.25, a number ratio Ra of through-holes in which an area of the opening portion at the position A is more than 1.25 times Sva is 3.0% or less, and a number ratio Rb of through-holes in which an area of the opening portion at the position B ...

THERMOELECTRIC AIR GAP MEMBRANE DISTILLATION SYSTEM AND PROCESS

A distillation apparatus having a hot liquid block, a thermoelectric module (TEM), a condensation surface, a feed liquid chamber having a feed chamber inlet, a feed chamber outlet, and a membrane disposed on at least one side of the feed liquid chamber. One side of the membrane faces to the condensation surface. An air gap of 1 mm to 20 cm separates the condensation surface and the membrane. A permeate outlet in fluid communication with the air gap. A heating unit in fluid communication with the feed liquid chamber and the hot liquid block. A cooling unit in fluid communication with the permeate outlet. A multi-stage distillation apparatus with a plurality of distillation apparatuses. A process of distilling water, by feeding a liquid into the distillation apparatus through the hot block inlet and collecting distilled water from the permeate outlet.

LIQUID COMPOSITION, LAMINATED STRUCTURE BODY, METHOD OF MANUFACTURING LAMINATED STRUCTURE BODY, AND METHOD OF MANUFACTURING POWER STORAGE ELEMENT OR POWER GENERATION ELEMENT

Provided is a liquid composition including a polymerizable compound and a liquid. The polymerizable compound includes a polymerizable compound having a functional group capable of forming a covalent bond with a hydroxyl group. The liquid composition forms a porous resin by polymerization. The light transmittance at a wavelength of 550 nm measured while stirring the liquid composition is 30% or more. In a process where the liquid composition forms the porous resin by polymerization, an increase rate of a haze value of a haze measuring element before and after the polymerization is 1.0% or more.

SEPARATION MEMBRANE AND METHOD FOR PRODUCING SEPARATION MEMBRANE

The present invention relates to a separation membrane including a thermoplastic polymer selected from a cellulose ester and a polyamide, in which, when regions obtained by dividing a cross-sectional surface perpendicular to a longitudinal direction of the separation membrane into 5 at an equal interval are defined as regions 1 to 5, all the regions 1 to 5 have a number average pore diameter changing rate a of −0.25 to 0.25, and at least one of the regions 1 to 5 is a region P that satisfies conditions (a) and (b): (a) a value of area average pore diameter Ds/number average pore diameter Dnis 2.50 to 6.00; and (b) a number average W of fine pores that are located at a distance smaller than Lafrom a center of respective coarse pores is 10 to 30.

Composite membrane

A substrate for a composite membrane includes a microporous polyolefin membrane for carrying a hydrophilic resin compound within the pores of the microporous membrane wherein: the average pore diameter is 1 nm to 50 nm; the porosity is 50% to 78%; the membrane thickness is 1 μm to 12 μm; and, when a mixed solution of ethanol and water (volume ratio 1/2) is dripped onto a surface of the microporous polyolefin membrane which has not undergone hydrophilization treatment, the contact angle θ1 between the droplet and the surface is 0 to 90 degrees 1 second after the dripping, and the contact angle θ2 between the droplet and the surface is 0 to 70 degrees 10 minutes after the dripping, and the rate of change of the contact angle ((θ1−θ2)/θ1×100) is 10 to 50%.

Crosslinked protein-based separation membrane and application thereof

A crosslinked protein-based separation membrane and application thereof. The separation membrane is formed by attaching a crosslinked protein nanomembrane to a porous membrane, the crosslinked protein nanomembrane is formed by crosslinking a two-dimensional nanomembrane which is formed by phase transition of a protein with a crosslinking agent, the separation membrane contains a dense surface layer and a support layer, the dense surface layer is the crosslinked protein nanomembrane, and the support layer is the porous membrane; the protein is any one of lysozyme, bovine serum albumin, insulin, and α-lactalbumin; the crosslinked protein-based separation membrane has a good biocompatibility, may serve as a dialysis membrane for blood purification, and has a higher retention ratio for large molecular proteins.

CERAMIC FILTRATION ELEMENT

The present disclosure relates to a method of preparing ceramic filtration membranes with a low defect rate and improved filtration performances. The ceramic filtration membranes have a layered structure, wherein the layers are concerted to generate an improved filtration performance.

2D MATERIAL MEMBRANE WITH IONIC SELECTIVITY

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 said spacer layer are each independently composed of one or more selective layers, each selective layer comprising a 2D material; wherein said spacer layer comprises at least one channel for receiving a fluid; wherein said bottom layer comprises a hole with an area in the range of 1 μmto 1 mm; and wherein said hole is capable of being in fluid communication with said at least one channels of said spacer layer. 1. 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 said spacer layer are each independently composed of one or more selective layers, each selective layer comprising a 2D material;wherein said spacer layer comprises at least one channel for receiving a fluid;{'sup': 2', '2, 'wherein said bottom layer comprises a hole with an area in the range of 1 μmto 1 mm; and'}wherein said hole is capable of being in fluid communication with said at least one channel of said spacer layer.2. The multi-layered membrane of claim 1 , wherein width of said hole is in the range of 20 nm to 2 μm claim 1 , and length of said hole is in the range of 300 nm to 1 mm claim 1 , orwherein said 2D material is a nanoparticle, orwherein said 2D material is selected from the group consisting of graphene, graphite, hexagonal boron nitride, transition metal dichalcogenide, phosphorene, xene, transitional metal-xene, and combinations thereof.3. (canceled)4. (canceled)5. The multi-layered membrane of claim 2 , wherein said transition metal dichalcogenide has a chemical formula MX2 claim 2 , wherein M is a transition metal selected from the group consisting of titanium claim 2 , vanadium claim 2 , ...

POROUS AND MONOLITHIC CARBON MEMBRANES AND THEIR USE

This disclosure relates to methods for modulating activity of cells and tissue with materials that are capable of being activated by an energy pulse, such methods useful for treating diseases. The disclosure also provides devices and systems suitable for use in such methods, particularly devices and systems having a carbon-based material comprising one or more monolithic porous carbon membranes.

NITROCELLULOSE PAPERS AND METHODS OF PRODUCTION AND USE

The present invention relates to cellulose based papers coated with nitrocellulose as well as to methods for producing such coated papers and methods for using them, especially in lateral flow applications.

Method for Extracting and Recovering Gold from Aqueous Solution

The present disclosure provides a method for extracting and recovering gold from an aqueous solution, the method including: (1) gold extraction from an aqueous solution through electrocoagulation, in which an electrocoagulation reaction is performed in an electrolytic cell to produce iron hydroxide in-situ, so as to capture gold in the aqueous solution and reduces the gold into gold nanoparticles in-situ; (2) pickling and liquefaction of the precipitated iron sludge, in which the obtained precipitate is dissolved in nitric acid to dissolve iron flocs after washing treatment; and (3) separation and recovery of gold through a nanofiltration membrane system, in which the resulting solution after pickling the precipitated iron sludge is subjected to cut-off treatment using a nanofiltration membrane to separate nano-sized elemental gold from the solution, and then the resultant is washed with water to obtain elemental gold. The extraction and recovery method of the present disclosure has characteristics ...

Method for fabricating oleophilic-hydrophobic nanofiber membrane and separation of water-in-oil emulsion using same method and waste heat

The present invention relates to a lipophilic and hydrophobic nanofiber membrane and a method of preparing the same. The lipophilic and hydrophobic nanofiber membrane according to an exemplary embodiment may be compressed at a pressure of 10 kPa to 100 kPa and may have an average thickness of 10 μm to 1,500 μm.

Polymer membranes

Disclosed is a method for the production of a porous polymer membrane suitable for liquid filtration or analyte capture, comprising the steps of: providing a flowable composition (100) on a substrate (220) the composition including at least: photo-activatable monomer molecules, photo activation initiator molecules and photo-activation quencher molecules; providing one or more pulses (L) of laser light at at least one focal point in the composition of sufficient energy to locally polymerise the composition; moving the or each focal point relative to the previously polymerised composition in a continuous or stepwise predetermined manner to a multiplicity of further positions; and repeating the pulse(s) at those further positions such that a three dimensional matrix of the composition is polymerised leaving unpolymerized areas of a size equivalent to conventional polymer membrane pores.

SEPARATION MEMBRANE COMPLEX AND SEPARATION METHOD

A separation membrane complex includes a porous support and a separation membrane formed on the support and used to separate fluid. A supply/permeation area ratio obtained by dividing a supply-side surface area by a permeation-side surface area is higher than or equal to 1.1 and lower than or equal to 5.0, the supply-side surface area being the area of a region of the surface of the separation membrane to which fluid is supplied, the permeation-side surface area being the area of a region of the surface of the support from which fluid that has permeated through the separation membrane and the support flows off.

PATTERNED POROUS MATERIAL SURFACES

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 between each structure in a pair of structures in the plurality is at most a predetermined spacing based on the expected contaminant.

Method and system for refining long chain dicarboxylic acid

The present disclosure provides a system for refining long chain dicarboxylic acid, comprising: a first membrane filtration unit, for a first membrane filtration of a long chain dicarboxylic acid fermentation broth or a treated liquid therefrom; a first decolorization unit, for carrying out a first decolorization treatment to the filtrate obtained after the membrane filtration; a first acidification/crystallization unit, for carrying out a first acidification/crystallization of a filtrate obtained after the membrane filtration to give a solid-liquid mixture; a first separation unit, for a solid-liquid separation of the solid-liquid mixture; a drying unit, for drying the solid separated by the separation unit to give a first solid. By using the refining system according to the present disclosure, the purity of the obtained product is high, and the disadvantages such as poor quality of the product obtained by crystallization from a solvent and environment pollution caused by a solvent can ...

MECHANICALLY STABLE ULTRAFILTRATION MEMBRANE, AND METHOD FOR PRODUCING SAME

The invention relates to a mechanically stable ultrafiltration membrane and to a method for producing such an ultrafiltration membrane. 1. A method for producing an ultrafiltration membrane , comprising:(a) applying a first polymer solution to a support layer, to form a first polymer layer on and/or partially or completely in the support layer,(b) contacting the coated support layer from step (a) with a gas, which comprises a nonsolvent, relative to the polymer in the first polymer solution,(c) applying a second polymer solution to the first polymer layer, to form a second polymer layer on the first polymer layer, and(d) introducing the multiply coated support layer into a precipitating bath, which comprises a precipitant, relative to the polymer in the first and/or second polymer solution.2. The method of claim 1 , wherein the first and the second polymer solutions independently of one another have the same or different solids contents of 2 to 40 wt %.3. The method of claim 2 , wherein the first polymer solution has a higher solids content than the second polymer solution.4. The method of claim 1 , wherein the first and the second polymer solutions independently of one another have viscosities of 800 to 40000 mPa*s.5. The method of claim 1 , wherein the application temperatures in (a) and (c) independently of one another are from 4° C. to 40° C.6. The method of claim 1 , wherein the support layer in (a) and the coated support layer in (c) move at a speed of 30 to 500 m/h relative to the respective first and second polymer solution during application thereof.7. The method of claim 1 , wherein the gas comprises from 1.0 to 20 g/mof nonsolvent.8. The method of claim 1 , wherein the gas which comprises a nonsolvent claim 1 , relative to the polymer in the first polymer solution claim 1 , comprises nitrogen as carrier gas and a nonsolvent (mixture) consisting of 50 to 100 vol % of water and 0 to 50 vol % of ethanol claim 1 , based on the total amount of nonsolvent.9. ...

A SEPARATION DEVICE AND COMPOSITE MEMBRANE

The present invention relates to a composite membrane comprising at least one 2D material and an inorganic porous material. The composite membrane described herein may be housed within a separation device which may be used for selective permeation of one or more gaseous compounds.

MEMBRANE WASTEWATER TREATMENT SYSTEM AND METHOD THEREOF

This document describes systems and methods for treating and recovering water from feed solutions using a multilayer module with an expansion chamber. The multilayer module comprises a feed spacer layer, a permeate spacer layer and a membrane layer, wherein water vapor evaporated from the feed solution in the feed spacer passes through the membrane layer into the permeate spacer layer. The expansion chamber receives the water vapor from the permeate spacer layer and the feed solution from the feed spacer layer.

INTEGRATED DUAL-MODE CHROMATOGRAPHY TO ENRICH EXTRACELLULAR VESICLES FROM PLASMA

The present disclosure provides, in some embodiments, devices, methods, and kits for purifying extracellular vesicles (EVs) using size exclusion chromatography in tandem with cation exchange chromatography, which can be referred to as dual-mode chromatography (DMC).

AUTOMATIC SEPARATION APPARATUS FOR FOUR FRACTIONS OF HEAVY OIL AND SEPARATION METHOD THEREOF

The present disclosure provides an automatic separation apparatus for four fractions of heavy oil and a separation method thereof, wherein the apparatus includes a solvent reservoir tank (1), a separation unit for four fractions of heavy oil (100) and a receiving apparatus (9). The separation unit for four fractions of heavy oil (100) includes: a filter disc (4) having one end in communication with the solvent reservoir tank (1), and the other end in communication with an inlet of a pre-column flow path switching valve (5); a chromatographic column (6) having an inlet in communication with an outlet of the pre-column flow path switching valve (5), and an outlet in communication with an inlet of a post-column flow path switching valve (8). The receiving apparatus is in communication with an outlet of the post-column flow path switching valve (8).

AN AIR PURIFIER COMPRISING A DIFFUSER

The present invention relates to an air purifier (1) comprising a body (2) having an air inlet (I) through which the air in the environment is sucked and a clean air outlet (O) through which the cleaned air is released to the environment; a CO2adsorption unit (3) which is provided on the body (2), which can be filled with basic liquid solution and which provides the adsorption of the carbon dioxide in the air; and an air duct (4) which provides the delivery of the air taken from the body (2) to the CO2adsorption unit (3).

SINGLET OXYGEN GENERATING DEVICE FOR SELECTIVE DESTRUCTION OF PATHOGENS

A device for generating singlet oxygen is provided. The device has a sensitizer that converts triplet oxygen to singlet oxygen upon exposure to light. The device is configured to keep the sensitizer from contacting external fluids.

Separation membrane and method for producing separation membrane

The present invention relates to a separation membrane including a thermoplastic polymer selected from a cellulose ester and a polyamide, in which, when regions obtained by dividing a cross-sectional surface perpendicular to a longitudinal direction of the separation membrane into 5 at an equal interval are defined as regions 1 to 5, all the regions 1 to 5 have a number average pore diameter changing rate αiof −0.25 to 0.25, and at least one of the regions 1 to 5 is a region P that satisfies conditions (a) and (b): (a) a value of area average pore diameter Ds/number average pore diameter Dnis 2.50 to 6.00; and (b) a number average W of fine pores that are located at a distance smaller than Lafrom a center of respective coarse pores is 10 to 30.

METHOD FOR PRODUCING HUMAN COLLAGEN STRUCTURES WITH CONTROLLED CHARACTERISTICS

A method for producing human collagen structures with controlled characteristics, having the following stages: a) Tissue conditioning b) Pre-treatment; b1) final washings with distilled water; c) extraction by enzymatic hydrolysis by subjecting the tissue to a solution of acetic acid with pepsin; d) precipitation, where the resulting collagen solution is brought to a high concentration by adding sodium chloride and where the fibers recovered from the sieve are solubilized again in an acetic acid solution; e) dynamic dialysis to purify the solution from the excess of salt present in the collagen solution; f) lyophilization at −40° C. and a vacuum pressure of 0.04 mbar (4 Pa); g) molding or second lyophilization, where a concentration is chosen and collagen is solubilized in an acetic acid solution; once solubilized, collagen is placed in molds to generate the desired structure and once again, the solution is lyophilized; h) crosslinking, where the collagen pieces are subjected to a formaldehyde ...

EFFICIENT AND LOW-ENERGY SHIP CO2 CAPTURE-MEMBRANE DESORPTION-MINERALIZATION FIXATION SYSTEM AND METHOD

An efficient and low-energy ship CO2capture-membrane desorption-mineralization fixation system, comprising a cooler, a fan, an absorption tower, a CO2-rich solution pump, a plurality of hollow fiber membrane contactors, and a CO2-lean solution pump, which are connected one by one to form a queue. The beginning of the queue is connected to a marine diesel engine, and the end of the queue is connected to the absorption power again. The hollow fiber membrane contactors are arranged in parallel. The present invention uses a CO2mineralization fixation by seawater as the driving force for the regeneration of CO2from the CO2-rich solution. This system and method can solve the problems existing in the existing ship CCUS technology with zero CO2regeneration energy consumption, and easier and safer CO2storage in the ocean.

FILTRATION MEDIA AND SYSTEMS FOR REDUCTION OF MICROPOLLUTANTS IN LIQUIDS

A washing machine includes a filter that is operably connected to a water circulation system to filter water. The filter may include a mesh filter element and a porous membrane whereby water passes through the mesh element and then through the porous membrane prior to exiting the washing machine. The porous membrane may include a plurality of openings of about 5 microns to about 100 microns to capture microparticles.

MEMBRANE ASSEMBLY FOR GAS SEPARATION, METHOD FOR PRODUCING THE MEMBRANE ASSEMBLY AND METHOD OF SEPARATING GASES

The present invention concerns gas-separation membranes. In some embodiments, the membranes comprise nano- or microislands or non-continuous metal layers suitable to adsorb, react with and/or otherwise retain at least one of the gases to be separated from a mixture of gases. In one embodiment, the membrane comprises a porous graphene membrane on which Pt or Pd nanoislands are deposited using a mesh, while the nanoislands are suitable to retain and bind to H2while letting helium pass in a H2/He gas mixture. In another embodiment CO2is separated from a H2/CO2mixture. The membranes exhibit both, high selectivity and permeance and can be operated at room temperature.

PRODUCTION METHOD FOR FOOD COMPOSITION

A production method for an MP whey is provided, that enables preparation of both of a high GMP-content composition and a usable MP whey from an ordinary MP whey. The problems can be solved by a production method for a glycomacropeptide-containing composition, that includes a step of acquiring a solution containing glycomacropeptide, that includes a glycomacropeptide content of 10% by weight or higher in the protein total amount by condensing and/or applying diafiltration to a microparticulated whey solution.

ULTRATHIN MEMBRANES FOR NANOSCALE PORES AND CHANNELS

A nanopore sensing system includes a cis well, a trans well, and a metal based membrane positioned between the cis and trans wells so that a channel defined in the metal based membrane fluidically connects the cis and trans wells. The metal based membrane has a thickness ranging from about 1 nm to about 3 nm and is selected from the group consisting of a metal oxide, a metal sulfide, a metal nitride, a metal phosphide, a metal arsenide, a metal antimonide, a metal selenide, and a metal telluride.

Membrane with localized asymmetries

Membranes with localized asymmetries, devices including the membranes, and methods of making and using the membranes, are disclosed.

Method for producing filtration filter

To provide a method for producing a filtration filter that can simplify the process for providing clean water or freshwater. By etching silicon substrate 1 using masking film formed on a surface of substrate 1 and having numerous openings to expose portions of the surface, numerous circular holes 2 with an approximate diameter of 100 nm are formed in substrate 1 . Diameter (D 1 ) at minimum-diameter portions 4 near the openings of circular holes 2 to be reduced by silica film 3 is adjusted to be 1 nm˜100 nm by depositing silica film 3 on the inner surfaces of circular holes 2.

Hollow fiber membrane module and method for producing chemical substance

A hollow fiber membrane module includes a housing, a hollow fiber membrane sealed in the housing and a sealing agent in a space between the hollow fiber membrane and the housing, wherein 1) the hollow fiber membrane is made of a polysulfone based resin; 2) a membrane surface average pore diameter is 5 nm or more and 500 nm or less; 3) a pure water permeability coefficient under 50 kPa at 25° C. is 0.05 m 3 /m 2 /hour or more and 5 m 3 /m 2 /hour or less; 4) the sealing agent is at least one selected from the group consisting of a polyurethane resin and an epoxy resin; and 5) a decrease in tensile strength after bringing the sealing agent into contact with saturated steam at 121° C. for 24 hours is 25% or less.

Block polymer composite membranes

A highly permeable sorbent platform based on polysulfone and polystyrene-b-poly(acrylic acid) composite membranes. The membranes possess a fully interconnected network of poly(acrylic acid)-lined pores, which enables the surface chemistry to be tailored through sequential attachment of polyethyleneimine moieties and metal-binding terpyridine ligands. The polyethyleneimine moieties increase the saturation capacity, while the addition of terpyridine enables high-affinity binding to a diversity of transition metal ions. This membrane platform removes such metal contaminants from solution. The metal capture performance of the functionalized membranes persists even in high concentrations of competitive ions. Also, fluorescence quenching of the terpyridine moiety upon metal ion complexation offers an in-situ probe to monitor the extent of sorbent saturation. The permeability, capacity, and affinity of these membranes, with high-density display of a metal-binding ligand, offer a chemically tailored platform to address the challenges that arise in ensuring clean water.

Super-hydrophobic nano-porous/micro-porous composite membranes for membrane distillation operating at low inlet feed temperatures with low energy consumption

A mathematical model was developed to lead to the design of a novel membrane, which can operate in membrane distillation at a small trans-membrane temperature gradient, including at low feed water temperature range. The novel membrane design can be described as a super-hydrophobic nano-porous/micro-porous composite membrane. This membrane will significantly decrease the energy requirements of the MD process since it can operate at very low inlet feed temperatures.

Plasma Separation Device

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

Polymeric Composites Having Oriented Nanopores and Methods of Making the Same

The present invention relates to the development and fabrication of thin-film polymer composite materials containing vertically aligned nanopores. The present invention provides methods of aligning nanopores in a polymeric film. The present invention also provides composite materials and methods of fabricating composite materials containing vertically aligned nanopores.

Porous graphene based composite membranes for nanofiltration, desalination, and pervaporation

Membranes of the present disclosure possess very thin barrier layers, with high selectivity, high throughput, low fouling, and are long lasting. The membranes include graphene and/or graphene oxide barrier layers on a nanofibrous supporting scaffold. Methods for forming these membranes, as well as uses thereof, are also provided. In embodiments, an article of the present disclosure includes a nanofibrous scaffold; at least a first layer of nanoporous graphene, nanoporous graphene oxide, or combinations thereof on at least a portion of a surface of the nanofibrous scaffold; an additive such as crosslinking agents and/or particles on an outer surface of the at least first layer of nanoporous graphene, nanoporous graphene oxide, or combinations thereof.

Hydrogen ion transport membrane, membrane for generating hydrogen, and method for manufacturing same

The present application relates to a hydrogen ion transport membrane, which is formed by using a porous thin film having a plurality of holes which are regularly aligned, a membrane for generating hydrogen, and a method for manufacturing the hydrogen ion transport membrane and the membrane for generating hydrogen.

Method and apparatus for making a nanopore in a membrane using an electric field applied via a conductive tip

The apparatus for making a nanopore in a membrane generally has an electrode configured to connect to one of two opposing surfaces of the membrane; a conductive tip configured to contact a location of the other one of the two opposing surfaces of the membrane; and a voltage source electrically connected between the electrode and the conductive tip and operable to generate an electric potential across the membrane, the electric potential locally removing material of the membrane at the location to make the nanopore.

Filtration systems and methods for manufacturing biologically-produced products

Aspects of the present disclosure relate to filtration systems and methods for production of biologically-produced products, which may include pharmaceutical and/or protein products. Certain biomanufacturing systems described herein comprise a bioreactor (e.g., a perfusion bioreactor, a chemostat) and a filter probe comprising a filter bundle comprising a plurality of hollow fibers (e.g., longitudinally aligned hollow fibers). According to some embodiments, a center-to-center distance between any two hollow fibers within the fiber bundle at one or more points along a length of the fiber bundle is relatively large (e.g., greater than or equal to an average outer diameter of the hollow fibers of the fiber bundle, greater than or equal to 1.1 times a minimum diameter of the two hollow fibers). In some embodiments, the hollow fibers within the fiber bundle are arranged in an array (e.g., a hexagonal, linear, annular, or square array).

Oily water separator, oil-water separating method and filtration membrane unit

An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism; the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water; the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism; the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.

Porous etched ion-track polymer membrane as a separator for a battery

The present invention relates to the use of a porous polymer etched ion-track membrane as separator for batteries comprising a positive electrode, a negative electrode and a liquid electrolyte comprising at least one salt of a cationic ion in solution in a solvent, and to batteries comprising such a membrane as porous separator.

Porous Resin Structures

A method providing direct access to porous three-dimensionally (3D) continuous polymer network structures and shapes by combining BCP-resol co-assembly with CO 2 laser-induced transient heating. The CO2 laser source transiently heats the BCP-directed resol hybrid films to high temperatures at the beam position, inducing locally controlled resol thermopolymerization and BCP decomposition in ambient conditions. This enables shaping of BCP-directed porous resin structures with tunable 3D interconnected pores in a single process. Pore size can be varied from 10 nm to about 600 nm.

CERAMIC MEMBRANE FOR WATER TREATMENT USING OXIDATION-TREATED SiC AND METHOD FOR MANUFACTURING THE SAME

Disclosed are a ceramic membrane for water treatment using oxidation-treated SiC and a method for manufacturing the same. An object of the present invention is to manufacture a ceramic membrane for water treatment, which can be sintered at a low temperature of 1,050° C. or less, in which a SiO 2 oxide layer formed during an oxidation process induces volume expansion so as to prevent defects due to the contraction of a coating layer during general sintering. The ceramic membrane for water treatment using the oxidation treated SiC includes a porous ceramic support layer; and a SiC layer formed on the porous ceramic support layer and including SiC particles on which a SiO 2 oxide layer formed on a surface thereof.

Membrane Distillation Apparatus and Hydrophobic Porous Membrane

The present invention provides a membrane distillation apparatus that comprises an evaporation part comprising a liquid phase part 1 in which water to be treated flows, a gas phase part 1, and a hydrophobic porous membrane that separates the liquid phase part 1 and the gas phase part 1, a condensation part comprising a liquid phase part 2 in which cooling water flows, a gas phase part 2, and a cooling member that separates the liquid phase part 2 and the gas phase part 2, and a gas phase part 3 connecting the gas phase part 1 with the gas phase part 2, wherein the pressure of the gas phase parts 1 to 3 is 1 kPa or higher and the saturated steam pressure of water at the temperature of water to be treated or lower.

Apparatus and methods for fractionation of biological products

Methods and apparatus for purification of biological molecules using combinations of tangential flow filtration subunits and adsorption sub-units in a single apparatus where the subunits may be operated independently or in series and where the apparatus and methods are suitable for use in a wide range of formats distinct from conditions required for chromatographic processes such as conducting process steps using adsorption subunits for purification of a biological molecule in a contaminated sample without prior buffer equilibration.

Microfluidic filter device and method for dissociation of tissue and cell aggregates and enrichment of single cells

A microfluidic tissue dissociation and filtration device simultaneously filters large tissue fragments and dissociates smaller aggregates into single cells, thereby improving single cell yield and purity. The device includes an inlet coupled to a first microfluidic channel at an upstream location and a first outlet at a downstream location. A first filter membrane is interposed between the first microfluidic channel and a second microfluidic channel, wherein the second microfluidic channel is in fluidic communication with the first microfluidic channel via the first filter membrane. The first filter membrane operates under a tangential flow format. A second outlet is coupled to a downstream location of the second microfluidic channel and includes a second filter membrane interposed between the second outlet and the second microfluidic channel. The dual membrane device increased single cell numbers by at least 3-fold for different tissue types.

Filter medium for liquid filter and method for manufacturing same

Provided are filter media for liquid filters and a method of manufacturing the same, in which a thin filter layer is formed and the content of nanofibers weighs light, by laminating a low weight nanofiber web on a porous nonwoven fabric, and thus a less differential pressure is applied before and after filtering, to thereby increase a pass flow rate. The filter medium includes: a porous support that plays a strength support role; and a nanofiber web that is laminated on one side of the porous support and is made of nanofibers of a polymer material, in which the nanofiber web comprises fine pores of a three-dimensional structure, through which a liquid to be treated passes, wherein content of the nanofibers is less than 5 gsm.

Methods for perforating two-dimensional materials using a broad ion field

Perforating graphene and other two-dimensional materials with holes inclusively having a desired size range, a narrow size distribution, and a high hole density can be difficult to achieve. A layer in continuous contact with graphene, graphene-based materials and other two-dimensional materials can help promote hole formation. Processes for perforating a two-dimensional material can include exposing to an ion source a two-dimensional material in continuous contact with at least one layer, and interacting a plurality of ions from the ion source with the two-dimensional material and with the at least one layer. The ion source may be a broad ion beam.

Devices and methods for water treatment

A water-permeable device. The device has a supporting layer and a water-permeable membrane. The water-permeable membrane includes graphene layers that are aligned to form interlayer hydrophobic channels between the graphene layers. The interlayer hydrophobic channels are positioned to be aligned with the direction of water permeation. Also disclosed are systems and methods for water treatment.

Coatings for biological fluid filters

Filter media, filter devices and methods of making filter media are disclosed. The filter media includes a coating on at least a portion of said outer surface. The coating may be polymeric composition having a molecular chain that includes segments of non-polar groups and segments of at least one of polar groups or segments of ionic groups.

Coatings for biological fluid filters

Filter media, filter devices and methods of making filter media are disclosed. The filter media includes a coating on at least a portion of said outer surface. The coating may be polymeric composition having a molecular chain that includes segments of non-polar groups and segments of at least one of polar groups or segments of ionic groups.

Systems, Methods, and Devices for Removing Circulating Tumor Cells from Blood

A crossflow filter includes a rigid cylindrical inner wall and a rigid cylindrical outer wall inner with an inelastic filter membrane positioned therebetween defining a retentate channel inside the filter membrane and a permeate channel outside the filter membrane. Further, the filter includes transition channels shaped and connected to the inner and outer walls to deliver a flow of fluid from an inlet port to the retentate channel and to capture flow flowing longitudinally along the cylindrical inner and outer walls from both the retentate and permeate channels to respective outlet ports.

Preparation method for composite porous structure and composite porous structure made thereby

The present invention provides a preparation method for a composite porous structure, comprising the following steps: step (a): preparing a porous substrate having multiple pores, a first surface and a second surface; and step (b): continuously feeding a cooling fluid to contact the first surface and to flow continuously to the second surface through the pores of the porous substrate, and heating a coating material to multiple molten particles by a heat source and spraying the molten particles onto the second surface of the porous substrate, so as to form a coating layer having multiple micropores on the second surface of the porous substrate and obtain the composite porous structure formed. Besides, also provided is a composite porous structure prepared by the preparation method.

Base films for impregnation, improved impregnated products, and related methods

A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.

Separation membrane structure

A separation membrane structure comprises a porous support, a first separation membrane formed on the porous support, and a second separation membrane formed on the first separation membrane. The first separation membrane has an average pore diameter of greater than or equal to 0.32 nm and less than or equal to 0.44 nm. The second separation membrane includes addition of at least one of a metal cation or a metal complex that tends to adsorb nitrogen in comparison to methane.

Composite hollow fiber and related methods and products

Described are composite hollow fibers filter membranes that include a porous polymeric hollow fiber support and a filter layer; methods of making the composite hollow fibers and using the composite hollow fibers as a filter membrane; methods of making a filter component or filter from the composite hollow fiber; and filter components and filters that contain the composite hollow fibers as filter membranes.

Internal pressure adjustment member and electrical component for transport equipment

Provided is an internal pressure adjustment member to be attached to an outer surface of a housing, the member having high air permeability even when a differential pressure that can be generated between the inside and the outside of a housing to which the internal pressure adjustment member is attached is small, and inhibiting damage to the member and a reduction in the air permeability of the member due to coming soil and mud. The internal pressure adjustment member includes: a filter portion including a net-like or mesh-like support layer and first and second porous polytetrafluoroethylene (PTFE) membranes laminated on the support layer such that the support layer is interposed therebetween, the first porous PTFE membrane being exposed on one surface of the filter portion, the second porous PTFE membrane being exposed on another surface of the filter portion; and an adhesive portion, formed on the one surface of the filter portion, for attaching the filter portion to the outer surface of the housing. The first porous PTFE membrane and the second porous PTFE membrane each have an average pore diameter of 2.0 μm or more, the filter portion has a thickness of 140 μm or less, and the filter portion has a density of 0.60 g/cm 3 or less.

Composite membranes and methods of use

A composite membrane for selectively pervaporating a first liquid from a mixture comprising the first liquid and a second liquid. The composite membrane includes a porous substrate comprising opposite first and second major surfaces, and a plurality of pores. A pore-filling polymer is disposed in at least some of the pores so as to form a layer having a thickness within the porous substrate. The polymer is more permeable to the first liquid than the second liquid but not soluble in the first liquid or the second liquid. The composite membrane may be asymmetric or symmetric with respect to the amount of pore-filling polymer throughout the thickness of the porous substrate.

Porous hollow fiber membrane, method for producing same, and water purification method

The porous hollow fiber membrane of the present invention contains a thermoplastic resin, and includes a surface having a surface porosity of 32 to 60% and a fine pore diameter of 300 nm or less, and has a compressive strength of 0.7 MPa or more. The porous hollow fiber membrane of the present invention may include at least two layers, and in this case, the surface of one layer has a thickness of backbone of 0.3 to 20 μm and a fine pore diameter of 0.3 to 10 μm, and the surface of the other layer has a surface porosity of 32 to 60% and a fine pore diameter of 0.05 to 0.3 μm.

Ultrafiltration purification of quantum-dots

Examples are disclosed that relate to an ultrafiltration system for quantum-dot (QD) purification. The ultrafiltration system comprises a pump having a low-pressure side and a high-pressure side, a size-exclusion membrane having a low-pressure side and a high-pressure side, and an inlet/outlet arrangement. An inlet arranged on the high-pressure side of the size-exclusion membrane is coupled fluidically to the high-pressure side of the pump. A product-enriched outlet is arranged on the high-pressure side of the size-exclusion membrane, fluidically downstream of the inlet. A product-depleted outlet is arranged on the low-pressure side of the size-exclusion membrane.

Porous hollow fiber membrane

The present invention provides a porous hollow fiber membrane including a polysulfone-based polymer and a hydrophilic polymer, and having a dense layer in a section from an outer surface portion to a center region of a membrane thickness, a thickness of the dense layer being 10 to 30 μm, and a ratio of a pore having a pore size of more than 50 nm and a ratio of a pore having a pore size of 10 nm or smaller in the dense layer being 25 to 40% and 20% or less, respectively.

Hollow fiber membrane and manufacturing method thereof

A hollow fiber membrane of the present invention is a hollow fiber membrane having an outer surface and an inner surface, wherein the inner surface has a zebra stripe pattern in which dense portions and porous portions are alternately formed in the longitudinal direction, and the outer surface has a maximum pore size of about 1 μm or less (≤about 1 μm), and wherein the hollow fiber membrane has a water permeability (flux) of ≥ about 1,300 LMH/bar to ≤ about 5,000 LMH/bar.

Chemical liquid purification apparatus and purification method using the same

A chemical liquid purification apparatus includes a tank body, a return tube, a liquid sending pump, a filtration device and a piping. The tank body has a liquid passage port and a circulation port communicated to a storage space inside the tank body. The return tube has one end connected to the circulation port and another end extending to the storage space. The liquid sending pump and the filtration device are located outside the tank body in between the liquid passage port and the circulation port. The piping is connecting the liquid sending pump and the filtration device to the liquid passage port and the circulation port.

Porous compositions and related methods

Porous compositions such as flexible polymers with side chain porosity are generally provided. In some embodiments, the composition comprises a flexible polymer backbone and a plurality of rigid side chains. In some embodiments, the rigid side chains form pores. In some embodiments, the rigid side chains may comprise two or more [2.2.2] bicyclic cores (e.g., formed by a ring opening metathesis polymerization. The compounds and methods described herein may be useful in various applications including, for example, gas separation.

Filtering device, purification device, and method for manufacturing chemical liquid

A filtering device is for obtaining a chemical liquid by purifying a liquid to be purified, and the filtering device has an inlet portion, an outlet portion, a filter A, at least one filter B different from the filter A, and a flow path which includes the filter A and the filter B arranged in series and extends from the inlet portion to the outlet portion, in which the filter A is a porous membrane containing a polyimide-based resin.

A CERAMIC MEMBRANE FOR WATER AND WASTEWATER TREATMENT

Disclosed herein is a ceramic membrane for water and/or wastewater treatment, the membrane comprising a ceramic substrate having at least one surface and a membrane layer comprising core-shell particles on the at least one surface, where the core and shell are formed from materials described herein. The core of the core-shell particles is formed from one or more of the group selected from AlOand ZrO, and the shell of the core-shell particles is formed from one or more of the group selected from SiO, TiOand WO. In a preferred embodiment, the core is AlOand the shell is SiO. 1. A ceramic membrane for water and/or wastewater treatment , the membrane comprising:a ceramic substrate having at least one surface; anda membrane layer comprising core-shell particles on the at least one surface, where the core is formed from:an inorganic material with a positive zeta potential; and/oran inorganic material that has a sintering temperature of from 800 to 2200° C., and the shell is formed from:an inorganic material having a negative zeta potential; and/oran inorganic material with a sintering temperature of from 600 to 1400° C., provided that when the core is formed from an inorganic material that has a sintering temperature of 800 to 2200° C. and the shell is formed from an inorganic material with a sintering temperature of from 600 to 1400° C., the sintering temperature of the core is higher than the sintering temperature of the shell.2. The ceramic membrane according to claim 1 , wherein the core of the core-shell particles is formed by one or more metal oxides with a positive zeta potential and/or a sintering temperature of from 800 to 2200° C.3. The ceramic membrane according to claim 1 , wherein the core of the core-shell particles is formed from one or more of the group selected from AlOand ZrO.4. The ceramic membrane according to claim 1 , wherein the shell of the core-shell particles is formed from one or more of the group selected from SiO claim 1 , TiOand WO.5. The ...

HOLLOW FIBER MEMBRANES WITH POLYDIORGANOSILOXANE POLYOXAMIDE COPOLYMER SKIN LAYER AND METHODS OF MAKING AND USING THE SAME

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 thermoplastic polyolefin (co)polymer. A skin layer including at least one polydiorganosiloxane polyoxamide copolymer overlays the porous substrate. The skin layer is less porous than the porous substrate and forms an outer surface of the asymmetric hollow fiber membrane, while the porous substrate forms an inner surface of the hollow fiber membrane. The skin layer is preferably nonporous. 2. The asymmetric hollow fiber membrane of claim 1 , wherein at least 50 percent of the Rgroups are methyl.3. The asymmetric hollow fiber membrane of claim 1 , whereineach Y is an alkylene having 1 to 10 carbon atoms, phenylene bonded to an alkylene having 1 to 10 carbon atoms, or phenylene bonded to a first alkylene having 1 to 10 carbon atoms and to a second alkylene having 1 to 10 carbon atoms;G is an alkylene, heteroalkylene, arylene, aralkylene, polydiorganosiloxane, or a combination thereof, and{'sup': '3', 'Ris H or methyl.'}4. The asymmetric hollow fiber membrane of claim 1 , wherein n is at least 40.5. The asymmetric hollow fiber membrane of claim 1 , wherein the porous substrate comprises an internal lumen surface of the symmetric hollow fiber membrane.6. The asymmetric hollow fiber membrane of claim 1 , wherein the skin layer comprises an outer sheath surface of the asymmetric hollow fiber membrane.7. The asymmetric hollow fiber membrane of claim 1 , wherein the skin layer comprises an internal lumen surface of the symmetric hollow fiber membrane.8. The asymmetric hollow fiber membrane of claim 1 , wherein the semi-crystalline thermoplastic polyolefin (co)polymer comprises polyethylene claim 1 , polypropylene claim 1 , polymethylpentene claim 1 , or a combination thereof.9. The asymmetric hollow fiber membrane of claim 1 , wherein the plurality of ...

산기관 일체형 중공사분리막 모듈

본 발명은 중공사분리막(15), 공기 또는 산소를 공급할 수 있는 주입구, 공기 또는 산소를 발생할 수 있는 구멍이 형성되어 있으며 상기 중공사분리막이 U자 형태로 걸려있는 산기관, 하부 지지대와 산기관 연결대 및 다리를 포함하는 하부 구조물(도 1), 상기 중공사분리막(15) 다발의 말단을 분산 배치 할 수 있는 상부 중공사분리막 분배 구조물(9), 상기 중공사분리막(15)과 상기 상부 중공사분리막 분배 구조물(9)을 실링하고 여과수 배출구가 구비되어 있는 헤드(12) 및 상기 상부 중공사분리막 분배 구조물(9)과 상기 하부 구조물(도 1)을 연결해주는 지지대(8-a, 8-b)를 포함하는 것을 특징으로 하는 산기관 일체형 중공사분리막 모듈에 관한 것이다. 본 발명은 생물반응조 내에 설치되었을 때 산기관 일체형 중공사분리막 모듈의 산기관의 공기 또는 산소 발생구멍에서 발생하는 공기 또는 산소 방울이 직접적으로 중공사분리막(15)을 털어 주게 됨으로서 파울링이 잘 발생하지 않아 오랜 기간 투과성능을 유지할 수 있는 장점이 있다. 중공사분리막 모듈, 산기관, 일체형, 파울링, 투과성

薬液を処理するための方法

薬液を処理するための方法を提供する。該方法は、少なくとも１つの濾過媒体を含むシステムを提供することと、約１０ｐｐｂ以下の鉄（Ｆｅ）とカルシウム（Ｃａ）の含有量を有する処理液でシステムを処理することと、処理工程の後に上記システムをその内に有する装置を用いて薬液を処理することとを少なくとも含む。

复合膜及其使用方法

本发明公开了一种复合膜，所述复合膜用于从包含第一液体和第二液体的混合物中选择性地渗透蒸发所述第一液体。所述复合膜包括多孔基底，所述多孔基底包括相对的第一主表面和第二主表面及多个孔。填孔聚合物被设置于所述孔的至少一些中，从而在所述多孔基底内形成具有一定厚度的层。所述聚合物对所述第一液体的渗透性比对所述第二液体的渗透性更大，但不溶于所述第一液体或所述第二液体。相对于在整个所述多孔基底厚度上的填孔聚合物的量，所述复合膜可以是不对称的或对称的。

혼성 다공성 구조체, 혼성 다공성 구조체의 제조 방법, 혼성 다공성 구조체를 포함하는 분리막, 및 상기 분리막을 포함하는 수처리 장치

복수의 가상의 구형체 형상이 3차원 방향으로 서로 접하도록 쌓인 가상의 적층체에서 상기 가상의 구형체 간의 간극을 메우는 형상의 비다공성 템플레이트(template); 및 상기 가상의 적층체 형상 내부에 존재하도록 상기 비다공성 템플레이트 내부에 적층된 이온성 고분자 코팅층을 포함하는 혼성 다공성 구조체가 제공된다. 상기 가상의 구형체 내부의 중심부에 기공이 형성될 수 있다. 상기 혼성 다공성 구조체는 두 개의 상기 가상의 구형체 형상이 접하는 영역에 형성된 기공인 네크(neck)를 복수 개 포함할 수 있다. 상기 네크는 상기 구형체 내부의 중심부에 존재하는 기공과 연결(interconnected)될 수 있다.

用于持续冲洗的导管系统

一种留置导尿管系统，其具有细长管状导管主体401，其具有远端和近端；至少一个套管部分406，其由围绕导管主体的至少一部分的半透膜构成；至少一个腔，其用于将流体滴注到导管主体中；以及用于持续流出滴注流体的装置，流体穿过半透膜流出使得流体从围绕导管主体的膜周向地流出。导管还可以包括引流腔414和开口或孔眼405，引流腔414从稍短于远端到近端延伸穿过导管主体，开口或孔眼405位于导管主体中稍短于导管主体的远端，以允许尿液从患者的膀胱排出到引流腔中。还可以包括保持机构。

多孔中空丝膜和其制造方法

本发明提供适合于去除液体中的病毒等微小物的多孔中空丝膜。本发明涉及多孔中空丝膜，其具有含有氟树脂的分离功能层，扩散试验中的气体扩散量为0.5~5.0mL/m 2 /hr，且浸渍在2‑丙醇中的起泡试验中的起泡点为0.005~0.2个/cm 2 。

Gas separation membrane

本发明提供气体分离膜，其作为气体分离膜的性能平衡(透气性能和气体分离性的平衡)优异。所述气体分离膜具有多孔性支持体和在所述多孔性支持体上形成的气体分离性树脂层，所述多孔性支持体的利用压汞仪得到的众数径为0.005μm～0.3μm，利用压汞仪得到的孔径分布指数为1～15。

Microporous membranes having increased pore densities and process for making the same

Disclosed are a process for forming an open-celled microporous membrane (e.g., in film or fiber form) and a novel microporous membrane formed thereby. The process generally includes sequential cold and hot stretching operations, whereby the cold stretching operation is preferably accomplished in a plurality of discrete cold stretching steps. In this regard, the total cold stretch extension is of greater than about 30 percent, and advantageously greater than about 40 percent based upon the initial unstretched length of the nonporous precursor, with this total cold stretch ratio being distributed among a plurality of discrete cold stretching steps. The novel membranes of this invention are characterized by decreased pore size and increased pore densities. For example, the membranes of this invention will have an average pore radius as determined by mercury porosimetry of less than about 0.040 micron. The membranes of this invention, moreover, exhibit a distinctive "bluish" color hue (i.e., a Macbeth Coloreye™ b* value of less than about -10 as determined by placing a single ply sample of the membrane against a black background).

Gas transfer membrane

由疏水性聚合物如Halar制得的多孔性聚合物膜，该膜的孔径足以使0.05微米-5pm的气体和/或蒸气透过，而不允许亲水性液体通过该膜。孔分布是均匀的，孔隙率是高的，在一些情况下可高达80％。该膜例如可呈平板型或中空纤维型，可用于各种领域如HF气体的抽提，苛性碱溶液的脱气，氯气/碱性滤液的脱气，以及脱除自来水中的溶解氯。可采用基本上无毒的溶剂如柠檬酸乙酯或三乙酸甘油酯来进行用于制备这类膜的工艺过程。

Heat-resistant microporous film

Composite membranes and methods of use

제1 액체 및 제2 액체를 포함하는 혼합물로부터 제1 액체를 선별적으로 투과증발시키기 위한 복합막. 복합막은, 서로 반대편에 있는 제1 주 표면 및 제2 주 표면, 및 복수의 기공을 포함하는 다공성 기재를 포함한다. 다공성 기재 내에 두께를 갖는 층을 형성하도록 적어도 일부의 기공 내에 기공-충전 중합체가 배치된다. 중합체는 제2 액체보다 제1 액체에 대해 더 투과성이지만 제1 액체 또는 제2 액체에 용해성이 아니다. 복합막은 다공성 기재의 두께에 걸친 기공-충전 중합체의 양과 관련하여 비대칭이거나 대칭일 수 있다.

Compositions and methods for making sulfone polymer membranes

本发明涉及：聚芳基醚砜聚合物溶液[溶液(SP)]，该溶液包含：‑至少一种具有重复单元的砜聚合物[聚合物(PSI)]，其中，相对于聚合物(PSI)的所有重复单元，多于50％摩尔为选自下组的重复单元(R PSI )，该组由具有此处下述的式(R PSI ‑1)和(R PSI ‑2)的那些组成： 其中：‑每个E’，彼此相同或不同并且在每次出现时，选自下组，该组由具有式(E’‑1)至(E’‑3)的那些组成：(E’‑I)(E’‑II)(E’‑III) ‑每个R’独立地选自下组，该组由以下各项组成：卤素、烷基、烯基、炔基、芳基、醚、硫醚、羧酸、酯、酰胺、酰亚胺、碱金属或碱土金属磺酸盐、烷基磺酸酯、碱金属或碱土金属膦酸盐、烷基膦酸酯、胺和季铵；并且‑j’是零或1至4的整数；‑T是键或任选地包含一个或多于一个杂原子的二价基团；优选地T选自由以下各项组成的组：键、‑CH 2 ‑、‑C(O)‑、‑C(CH 3 ) 2 ‑、‑C(CF 3 ) 2 ‑、‑C(＝CCl 2 )‑、‑C(CH 3 )(CH 2 CH 2 COOH)‑、以及具有下式的基团： ‑至少一种极性有机溶剂[溶剂(S)]；以及‑具有从1至6个碳原子的多羟基脂肪族醇或其衍生物的至少一种混合物[混合物(PHA)]，所述混合物(PHA)包含至少一种乙二醇化合物[化合物(EthyGly)]和至少一种丙三醇化合物[化合物(Gly)]；其用于制造膜的用途以及由其获得的膜。

Hierarchically-Structured Mesopore-containing Membrane, Method of Fabricating the Same and Method of Separating Xylene Using the Same

본 발명은 계층구조의 분리막, 그 제조방법 및 이를 이용한 크실렌의 분리방법에 관한 것으로서, 미세다공성 제올라이트 분리막 내부에 메조기공을 도입하여 얇은 두께를 가지면서도 적은 결함 및 높은 크실렌 투과분리성능을 나타내는 메조기공이 포함된 계층구조의 분리막, 그 제조방법 및 이를 이용한 크실렌의 분리방법에 관한 것이다. The present invention relates to a separation membrane having a hierarchical structure, a method for manufacturing the same, and a method for separating xylene using the same, wherein mesopores are introduced into a microporous zeolite separation membrane to have a thin thickness, but mesopores exhibiting small defects and high xylene permeation separation performance It relates to a separation membrane having a hierarchical structure, a method for manufacturing the same, and a method for separating xylene using the same.

Preparation method and application of zeolite/polyimide composite membrane

本发明涉及锂离子电池隔膜技术领域，具体涉及一种沸石/聚酰亚胺复合膜的制备方法及应用。先通过缩聚合成法合成掺杂沸石的聚酰胺酸前驱体铸膜液；再将所得铸膜液在基板上涂膜，通过非溶剂致相分离法得到沸石/聚酰胺酸复合多孔膜；最后将所得沸石/聚酰胺酸复合多孔膜经过梯度升温热酰亚胺化得到沸石/聚酰亚胺复合膜。本发明制备的沸石/聚酰亚胺复合膜，复合膜中的沸石具有独特的通道结构和高的表面积，作为锂离子电池的隔膜时，当沸石的通道吸收足够量的电解液时，锂离子既可以在沸石粒子外部的孔隙扩散，又可以在沸石本身的孔道结构扩散，这有效地提高了隔膜的电解液润湿性和吸液率，还能提高离子电导率等电化学性能。

High performance membrane

本发明涉及一种微孔膜，所述微孔膜包含由第一聚合材料(A)制成的多孔膜载体，并且包含紧密地分布在整个所述多孔膜载体上的第二聚合材料(B)，其中所述多孔膜载体包含多个互连的粗度小于1μm的聚合物纤维、纤丝、细丝和/或厚度小于1μm的薄层，所述多孔膜载体具有由多个互连的聚合物纤维、纤丝、细丝和/或薄层形成的互连开放孔结构和至少50％的孔隙率；并且所述聚合材料(B)包含热塑性缩聚材料，其用量相对于(A)和(B)的总重为至多30wt％。本发明还涉及一种用于制备上述微孔膜的方法，所述方法包括如下步骤，其中，(i)将由第一聚合材料(A)制成的多孔膜载体浸渍到第二聚合材料(B)在溶剂体系(X)中的聚合物溶液中，然后(ii)使所得经浸渍的膜载体在非溶剂体系(Y)中淬火，从而使至少部分所述第二聚合材料(B)沉淀出来。

Biaxially oriented porous membranes, composites, and methods of manufacture and use

至少一种选择的微孔膜由干拉伸工艺制成和具有基本上圆形的孔和范围在0.5至6.0的纵向抗张强度与横向抗张强度的比。制造前述微孔膜的方法可包括以下步骤：将聚合物挤出入无孔前体，和双轴拉伸无孔前体，所述双轴拉伸包括纵向拉伸和横向拉伸，横向包括同时受控的纵向松弛。至少本发明选择的实施方式可涉及双轴取向的多孔膜，复合材料包括双轴取向的多孔膜、双轴取向的微孔膜、双轴取向的打孔膜、电池隔板、过滤介质、湿度控制介质、平片膜、液体保留介质等、相关方法、制造方法、使用方法等。

For manufacturing the composition and method of sulfone polymer film

本发明涉及：聚芳基醚砜聚合物溶液[溶液(SP)]，该溶液包含：‑至少一种具有重复单元的砜聚合物[聚合物(PSI)]，其中，相对于聚合物(PSI)的所有重复单元，多于50％摩尔为选自下组的重复单元(R PSI )，该组由具有此处下述的式(R PSI ‑1)和(R PSI ‑2)的那些组成： 其中：‑每个E’，彼此相同或不同并且在每次出现时，选自下组，该组由具有式(E’‑1)至(E’‑3)的那些组成：(E’‑I)(E’‑II)(E’‑III) ‑每个R’独立地选自下组，该组由以下各项组成：卤素、烷基、烯基、炔基、芳基、醚、硫醚、羧酸、酯、酰胺、酰亚胺、碱金属或碱土金属磺酸盐、烷基磺酸酯、碱金属或碱土金属膦酸盐、烷基膦酸酯、胺和季铵；并且‑j’是零或1至4的整数；‑T是键或任选地包含一个或多于一个杂原子的二价基团；优选地T选自由以下各项组成的组：键、‑CH 2 ‑、‑C(O)‑、‑C(CH 3 ) 2 ‑、‑C(CF 3 ) 2 ‑、‑C(＝CCl 2 )‑、‑C(CH 3 )(CH 2 CH 2 COOH)‑、以及具有下式的基团： ‑至少一种极性有机溶剂[溶剂(S)]；以及‑具有从1至6个碳原子的多羟基脂肪族醇或其衍生物的至少一种混合物[混合物(PHA)]，所述混合物(PHA)包含至少一种乙二醇化合物[化合物(EthyGly)]和至少一种丙三醇化合物[化合物(Gly)]；其用于制造膜的用途以及由其获得的膜。

Nanocomposites, nanoporous polymer membranes and catalysts

Charged Porous Polymeric Membrane With High Void Volume

本发明公开了薄膜，包含具有第一微孔表面；第二微孔表面；以及，介于第一微孔表面和第二微孔表面之间的多孔本体的单一层，其中本体包含具有外边缘的第一组孔，其通过移除引入的溶解性二氧化硅纳米颗粒制备，第一组孔具有第一控制的孔径，以及连接第一组孔的外边缘的第二组孔，第二组孔具有第二控制的孔径，以及支撑第一组孔的聚合物基质，其中第一控制的孔径大于第二控制的孔径，以及其中第一和/或第二微孔表面包含带中性电荷的、带负电荷的或带正电荷的表面；包括薄膜的过滤器，以及制备和使用薄膜的方法。

Filter media, method for manufacturing thereof and Filter unit comprising the same

필터여재가 제공된다. 본 발명의 일 실시예에 의한 필터여재는 다공성 제1지지체, 및 상기 제1지지체의 일면에 배치되며, 기능성 물질을 포함하는 피복층이 외부 표면을 둘러싸는 나노섬유에 의해 형성된 3차원 네트워크 구조의 나노섬유웹을 포함하여 구현된다. 이에 의하면 서로 다른 기능을 가지는 고분자화합물을 섬유형성성분 또는 기능성 첨가제로 사용하여 다양한 기능을 단일의 여재 내에서 복합적으로 구현할 수 있고, 나노섬유웹을 구성하는 나노섬유의 두께, 기공의 크기가 균일하고, 나노섬유의 사절율을 현저히 저하시킬 수 있다. 또한 수처리 운전 중 필터여재의 형상, 구조 변형, 손상이 최소화되며, 유로가 원활히 확보되어 높은 유량을 가질 수 있다. 또한, 역세척시 가해지는 높은 압력에도 필터여재의 뛰어난 내구성으로 인해 연장된 사용주기를 가짐과 동시에 친수 특성이 향상되어 우수한 수투과도를 가짐에 따라서 각종 수처리 분야에서 다양하게 응용될 수 있다.

Method for producing film

本发明涉及制备膜M的方法，其包括以下步骤：a)制备共聚物C，其中所述共聚物C包含至少一种聚亚芳基醚A的嵌段和聚氧化烯PAO的嵌段，其中共聚物C中的聚氧化乙烯含量为30‑90重量％，且其中共聚物C在溶剂L中制备以得到溶液S；b)提供包含至少一种聚合物P的涂料溶液D；c)将溶液S和涂料溶液D混合；d)通过使溶液S和涂料溶液D的混合物与至少一种凝结剂接触而制备膜。

Porous polymeric membrane with high void volume

本发明公开了包含第一和第二表面的膜，第一表面包含图案化表面，其包含峰和谷，第一区域表面包含峰，并且第二区域表面包含谷；介于表面之间的多孔本体，多孔本体包含第一区域本体和第二区域本体；区域本体由它们各自的区域表面延伸，第一区域本体包含具有外边缘的第一组孔，以及与第一组孔的外边缘连接的第二组孔，以及支撑第一组孔的第一聚合物基质；第二区域本体包含具有外边缘的第三组孔，以及与第三组孔的外边缘连接的第四组孔，以及支撑第三组孔的第二聚合物基质；包括膜的过滤器，以及制备和使用膜的方法。

Porous separation membrane and preparation method thereof

본 발명은 다공성 분리막의 제조방법 및 이로 인해 제조된 다공성 분리막에 관한 것으로, 본 발명의 다공성 분리막의 제조방법은 a) 고분자 수지를 용매에 용해하고 첨가제를 혼합하여 고분자 용액을 준비하는 단계; b) 다공성 지지체를 함침 용액에 함침시키는 단계; c) 상기 함침 용액에 함침된 다공성 지지체 상에 상기 고분자 용액을 도포하여 고분자 수지층을 형성하는 단계; 및 d) 상기 고분자 수지층을 비용매에 침전시키는 단계를 포함한다. 이와 같은 본 발명은 균일한 기공 분포 및 일정한 두께를 가지는 다공성 분리막을 제공할 수 있다.

Membranes for separation

본 발명은 용매 및 용해된 용질을 포함하는 피드 스트림 용액의 가스 분리 및/또는 나노 여과를 위한 복합체 막으로서, 바람직한 용질의 거부율을 나타내는 복합체 막에 관한 것이다. 상기 복합체 막은 고유의 미세 기공도를 갖는 분리층을 포함한다. 상기 분리층은 지지막 위에 계면 중합에 의해 적당하게 형성된다. 적당하게는, 계면 중합 반응에 사용된 1종 이상의 단량체는 상호 연결된 나노 기공을 갖는 네트워크 중합체 및 향상된 투과도를 갖는 막을 생성하는, 오목부를 가져야 한다. 상기 지지막은 선택적으로 컨디셔닝제로 함침될 수 있고, 선택적으로 유기 용매 중에서, 특히 극성 비양성자성 용매 중에서 안정할 수 있다. 상기 복합체 막의 상부 층은 선택적으로 관능기로 캡핑되어 계면 화학을 변경시킬 수 있다. 상기 복합체 막은 거부율을 향상시키기 위해 오븐에서 경화될 수 있다. 마지막으로, 상기 복합체 막은 나노 여과 전에 활성화 용매로 처리될 수 있다.

For the film of separation

本发明涉及用于分离的膜，具体涉及用于气体分离和/或纳米过滤包含溶剂和溶解的溶质的进料流溶液并且显示出优先截留溶质的复合膜。复合膜包括具有固有微孔的分离层。分离层通过界面聚合适当地形成在载体膜上。适当地，用于界面聚合反应的至少一种单体应该具有凹度，得到具有连通的纳米孔的网状聚合物和具有提高的渗透率的膜。载体膜可以任选地用调节剂浸渍并且可以任选地在有机溶剂，尤其在极性非质子溶剂中是稳定的。复合膜的顶层任选地用官能团封端以改变表面化学。复合膜可以在烘箱中被固化以增强截留。最后，复合膜可以在纳米过滤之前用活化溶剂处理。

Membranes for separation

本发明涉及用于气体分离和/或纳米过滤包含溶剂和溶解的溶质的进料流溶液并且显示出优先截留溶质的复合膜。复合膜包括具有固有微孔的分离层。分离层通过界面聚合适当地形成在载体膜上。适当地，用于界面聚合反应的至少一种单体应该具有凹度，得到具有连通的纳米孔的网状聚合物和具有提高的渗透率的膜。载体膜可以任选地用调节剂浸渍并且可以任选地在有机溶剂，尤其在极性非质子溶剂中是稳定的。复合膜的顶层任选地用官能团封端以改变表面化学。复合膜可以在烘箱中被固化以增强截留。最后，复合膜可以在纳米过滤之前用活化溶剂处理。

Film for separation

本发明涉及用于气体分离和/或纳米过滤包含溶剂和溶解的溶质的进料流溶液并且显示出优先截留溶质的复合膜。复合膜包括具有固有微孔的分离层。分离层通过界面聚合适当地形成在载体膜上。适当地，用于界面聚合反应的至少一种单体应该具有凹度，得到具有连通的纳米孔的网状聚合物和具有提高的渗透率的膜。载体膜可以任选地用调节剂浸渍并且可以任选地在有机溶剂，尤其在极性非质子溶剂中是稳定的。复合膜的顶层任选地用官能团封端以改变表面化学。复合膜可以在烘箱中被固化以增强截留。最后，复合膜可以在纳米过滤之前用活化溶剂处理。

Method for removing catalyst fines by nanofiltration

本发明提供一种用于从烃产物中去除催化剂细颗粒的方法，所述方法包括提供至少一个纳滤膜以从所述烃产物中去除所述催化剂细颗粒，所述催化剂细颗粒包含0.1微米或更小的粒度；在所述纳滤膜的进料侧处接触所述烃产物；在所述纳滤膜的渗透物侧处回收催化剂细粒贫化流；在所述纳滤膜的滞留物侧处回收催化剂细粒富集流；并且其中所述催化剂细粒富集流包含从所述烃产物中去除的所述催化剂细颗粒，所述催化剂细颗粒包含0.1微米或更小的粒度。

Microporous membrane made from polyolefin

本发明公开了一种由聚烯烃制得的微多孔膜，其膜厚为1～30μm，孔隙率为30～60％，气体渗透速率为50～250秒/100立方厘米，穿刺强度为3.5～20.0N/20μm，通过泡点法测得的最大孔径为0.08～0.20μm，最大孔径与平均孔径之比(最大孔径/平均粒径)为1.00～1.40。由于由聚烯烃制得的该微多孔膜是高度安全的，同时保持高渗透性，因此其特别用作用于近年来小型的、高容量非水电解液电池的隔离体。

Gas transfer membrane

由疏水性聚合物如Halar制得的多孔性聚合物膜，该膜的孔径足以使0.05微米-5pm的气体和/或蒸气透过，而不允许亲水性液体通过该膜。孔分布是均匀的，孔隙率是高的，在一些情况下可高达80％。该膜例如可呈平板型或中空纤维型，可用于各种领域如HF气体的抽提，苛性碱溶液的脱气，氯气/碱性滤液的脱气，以及脱除自来水中的溶解氯。可采用基本上无毒的溶剂如柠檬酸乙酯或三乙酸甘油酯来进行用于制备这类膜的工艺过程。

Microporous polyolefin film and process for producing the same

本发明提供一种聚烯烃微多孔膜。该聚烯烃微多孔膜是通过将含有聚烯烃及成膜用溶剂的凝胶状成形物至少沿一个轴向拉伸，进行热定形处理，在除去了成膜用溶剂后，再次至少沿一个轴向拉伸而得到的。该聚烯烃微多孔膜细孔直径大，透气度、机械强度及耐压缩性优良。

A PVA coated hollow fiber mambrane and a preparation method thereof

본 발명은 중공사막을 준비하는 단계; 상기 중공사막 표면을 폴리비닐알콜(polyvinyl alcohol; PVA)로 코팅하여, 친수성 표면을 갖는 중공사막을 형성시키는 단계; 및 상기 중공사막 표면상에 계면중합을 통해 폴리아미드계 코팅층을 형성시키 는 단계를 포함하는, 중공사 복합막의 제조방법; 이에 따라 제조된 중공사 복합막; 및 해수 또는 폐수를 수처리하여 정제된 물을 제조하는 방법에 있어서, 상기 중공사 복합막을 사용하여 역삼투 공정을 통해 수처리하는 단계를 포함하는 것인 정제수 제조방법에 관한 것이다. 본 발명의 제조방법은 롤링공정이 어려워 복합막으로 제조할 수 없는 중공사막을 친수성 고분자인 PVA로 코팅하는 단계를 추가로 포함하는 간단한 방법에 의해 코팅되지 않은 중공사막에 비해 분획분자량이 1/10 수준으로 감소된 중공사 복합막을 제공할 수 있으므로, 이에 따라 제조된 분리능이 향상된 중공사 복합막은 정수처리, 하폐수처리, 해수담수화 및 식품 및 의약품 분리/정제 등에 유용하게 사용될 수 있다.

Prepare polymethyl methacrylate（PMMA）The method and its application of film

本发明描述了具有高度多孔网状3维结构的聚甲基丙烯酸甲酯(PMMA)膜，其适于侧向层析诊断应用。本发明还描述了制备聚甲基丙烯酸甲酯(PMMA)膜的方法，包括以下步骤：将适量的PMMA、溶剂和任选地助溶剂或非溶剂中的一种混合以制备溶液，将薄膜的溶液浇铸到载体上，以及从溶液中除去溶剂以产生PMMA膜。本发明还描述了一种侧向层析诊断装置，其包括作为反应膜的高度多孔PMMA膜。

Films from graft copolymers with polypropylene backbones, and nanoporous polypropylene membranes

본 발명은 폴리프로필렌(PP) 백본(backbone) 및 상기 백본에 공유 결합된 3 내지 8개의 폴리에스테르 세그먼트를 갖는 랜덤 그라프트 코폴리머를 포함하는 필름에 관한 것이며, 여기서 폴리프로필렌 백본의 수 평균 분자량(Mn)은 10,000 내지 100,000 달톤(150℃에서 o-DCB 중에서 HT-SEC로 측정한 경우)의 범위이며, 각 폴리에스테르 세그먼트의 Mn은 5,000 내지 25,000 달톤의 범위이며, PP의 양은 45 내지 80 mol%의 범위이며, 폴리에스테르 세그먼트의 양은 55 내지 20 mol%의 범위이며, 필름은 0.01 내지 10 mm 범위의 두께를 가지며, 폴리프로필렌 및 폴리에스테르 도메인은 독립적으로 연속 상을 형성하며, mol%는 코폴리머에 존재하는 모노머 단위의 총 몰에 대해 계산된다. 본 발명은 또한, 나노다공성 PP 멤브레인 및 이의 용도에 관한 것이다.

Porous multilayered hollow-fiber membrane and process for producing the same

本发明提供一种多孔性中空纤维膜和稳定制造该多孔性中空纤维膜的方法，所述多孔性中空纤维膜适合过滤用途等，同时具有高的阻止能和透水性能，并且机械强度优异。具体地说，制造多孔性中空纤维膜的方法中，使用具有配置成同心圆状的2个以上的圆环状挤出口的中空纤维成型用喷嘴，由该圆环状挤出口进行圆环状多层熔融挤出，分别将组成相互不同的热塑性树脂和有机液体的熔融混炼物从相互相邻的圆环状挤出口呈圆环状挤出，经冷却固化成型为中空纤维状，然后，从该冷却固化中空纤维状物中提取除去有机液体，从而制造多孔性多层中空纤维膜，该方法的特征在于，从至少一个圆环状挤出口挤出的熔融混炼物中，除了热塑性树脂和有机液体之外，还混炼有无机微粉，并且冷却固化后，除了有机液体之外，还提取除去无机微粉。

Preparing method of a porous carbon molecular sieve separation membrane

본 발명은 다공성 탄소분자체 분리막의 제조방법에 관한 것으로, 좀 더 상세하게는 용매 및 비용매 존재하에서 다공성 비대칭 분리막을 제조하는 단계; 상기 비대칭 분리막을 3∼10℃/min의 승온속도로 330∼370℃까지 승온시킨 다음 0∼0.5℃/min의 승온속도로 안정화시키는 단계, 및 상기 안정화된 비대칭 분리막을 0.05∼20℃/분의 속도로 500∼2000℃까지 승온시켜 탄소화시키는 단계를 포함하는 다공성 탄소분자체 분리막의 제조방법에 관한 것이다. 상기 분리막은 산소, 질소, 메탄 또는 이산화탄소와 같은 기체를 효율적으로 분리할 수 있다.

High selectivity promoting transport membrane and its use for olefin / paraffin separation

본 발명은, 비교적 친수성이고 초소형 세공을 갖는 나노다공성 지지체 멤브레인, 상기 지지체 멤브레인의 표층 표면 상의 초소형 나노세공 내부의 친수성 폴리머, 상기 지지체 멤브레인의 표면 상에 코팅된 얇은 비다공성 친수성 폴리머층, 및 상기 지지체 멤브레인의 표면 상에 코팅된 친수성 폴리머층과 상기 초소형 나노세공 내부의 친수성 폴리머 내에 도입된 금속염을 포함하는 신규한 촉진 수송 멤브레인, 상기 멤브레인의 제조 방법, 및 올레핀/파라핀 분리, 특히 C3=/C3 및 C2=/C2 분리를 위한 상기 멤브레인의 용도를 제공한다.

Reverse osmosis separation membrane

Microporous material, possessing filtering and adsorbing properties, and application thereof in methods for purification of flowing streams

Изобретение касается микропористых материалов, которые могут применяться в мембранах для фильтрования и адсорбции, и к их применению в способах очистки текучих потоков. Мембрана для ультрафильтрования содержит микропористый материал, содержащий: (а) полиолефиновую матрицу, присутствующую в количестве по меньшей мере 2 мас.%; (b) тонкоизмельченный, твердый, по существу нерастворимый в воде наполнитель из осажденного диоксида кремния, распределенный по всему объему указанной матрицы, где указанный наполнитель составляет от около 10% до около 90% веса субстрата указанного микропористого материала; и (с) по меньшей мере 20 об.% сети соединяющихся пор, проходящих через весь объем микропористого материала. Способ отделения суспендированных или растворенных материалов из потока текучей среды, такого как поток жидкости или поток газа, включает пропускание потока текучей среды через описанную выше мембрану для ультрафильтрования. Изобретение позволяет получить мембрану для удаления примесей из потоков жидкостей и газов по механизму химической или физической десорбции, обладающую высокой прочностью. 2 н. и 22 з.п. ф-лы, 9 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B01D 71/26 B01D 69/14 B01D 67/00 C08L 23/06 (13) 2 580 918 C2 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014122520/05, 04.09.2012 (24) Дата начала отсчета срока действия патента: 04.09.2012 Приоритет(ы): (30) Конвенционный приоритет: R U 04.11.2011 US 61/555,500; 30.08.2012 US 13/599,266 (72) Автор(ы): ГО Цюньхуэй (US), НОКС Кэрол Л. (US), КОЛЛАХ Рафаэль О. (US), МАРТИН Джастин (US), ОУКЕЛ Тимоти А. (US), РАРДОН Дэниэл Е. (US), ГАРДНЕР Кристин (US), МОХНОТ Шантилал М. (US) (43) Дата публикации заявки: 10.12.2015 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: US 2006121269 A1, 08.06.2006. EP 1097961 A1, 09.05.2001. US 2006272499 A1, 12.07.2006. И.Л.КНУНЯНЦ, Химическая энциклопедия, Большая ...

Carbon molecular sieve membranes and their use in separation processes

a) 분자 체질을 위한 기공 크기가 0.25 nm 내지 0.55 nm이고 흡착 확산을 위한 기공 크기가 0.55 nm 내지 0.90 nm인 기공과, 무시할 수 있는 양의 0.90 nm 초과의 기공을 포함하는 친수성 탄소 분자체 막(CMSM)을 제공하여, 실온 및 1 내지 4 bar의 압력에서 투과 압력에 대한 N 2 투과도의 그래프가 0 또는 음의 기울기를 갖도록 하는 단계; 및 b) 물이 포화된 탄소 분자체 막을 얻을 때까지 막을 가습하는 단계;에 의해 얻을 수 있는 물이 포화된 탄소 분자체 막이 제공된다. 또한, 이러한 물이 포화된 막을 갖는 기체 혼합물로부터 기체를 분리하는 방법, 및 용매 탈수를 위한 및 막 반응기로서의 이의 용도가 제공된다.

Spreading layer and method for producing an analysis element spreading layer

用于制造分析元件-展开层的方法，它包括下述步骤：输送具有下侧面（19）、上侧面（15）和原始厚度D的多孔隙的原始薄膜（2），其中，原始薄膜（2）的孔隙的尺寸在所述原始薄膜的原始厚度D上至少局部地增加；按照距上侧面（15）的规定的距离来切割所述原始薄膜（2），其中，展开层（16）是原始薄膜（2）的部分层，它的厚度d比原始厚度D小，展开层（16）的孔隙如此地实现彼此液体连通，即对于液体来说可以穿过所述展开层，通过分离所述原始薄膜（2）的部分层（11）所形成的薄膜表面是展开层（16）的液体出口侧面（12），并且在展开层（16）的液体出口侧面（12）上的孔隙的平均孔隙尺寸至少为1μm。本发明还涉及一种用于容纳待分析的液体且用于将该液体均匀地分布到液体出口侧面（12）的分析元件和光学分析元件的展开层。

Fiber supported hollow fiber membrane contained wick of cross stripes

본 발명은 격자형 심지(1)에 의하여 중공사분리막(도 3) 내부유로(6)를 일정하게 분할하고, 중공사분리막(도 3)이 여과액을 여과 처리할 때 수축되어 중공사분리막(도 3)의 형태가 변형되는 것을 방지하며, 격자형 심지(1) 외부에 섬유지지체(2)를 감싸고 있어(도 2) 그 섬유지지체(2) 외부 표면에 고분자수지(5)를 코팅 또는 도포하여 수중에서 경화되어 0.05∼1.0 ㎛ 의 정밀여과의 분획 특성의 다공성 공극(7)을 가진 격자형 심지를 포함한 섬유지지체 중공사분리막(도 3)으로, 격자형 심지(1)와 섬유지지체(2) 및 고분자수지(5)의 3중 구조로 구성됨을 특징으로 하는 격자형 심지를 포함한 섬유지지체 중공사분리막(도 3)으로, 분석에 따르면 그 인장강도가 65,000 gf이다.

Porous polytetrafluoroethylene film and method of manufacturing thereof

Изобретение относится к технологии волочения политетрафторэтиловых пленок и может быть использовано в производстве жидкостных фильтров, воздушных фильтров для очистки внутренней атмосферы в чистых помещениях промышленности полупроводников и для создания благоприятных условий для точных электронных приборов в медицине, биохимии и т.д. Пленку получают вытягиванием несплавленного политетрафторэтилена в продольном направлении при 250-320 o С, а в поперечном при 100-200 o С. Полученная пористая пленка имеет средний размер пор 0,2-0,4 мкм и создает перепад давления 20-50 мм H 2 O при прохождении через нее воздуха со скоростью потока 5,3 мм H 2 O в 1 с. При небольшом перепаде давления эффективность улавливания значительно возрастает. 2 с. и 5 з.п. ф-лы, 2 ил., 3 табл. ЭзЗзбУс с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2124 986 ' (51) МПК 13) СЛ В 29 С 55/12, 67/20//В 29 К 27:18, В 29 Е 7:00, 31:14 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 94042904/04, 21.01.1994 (30) Приоритет: 25.01.1993 /Р 5/9797 (46) Дата публикации: 20.01.1999 (56) Ссылки: ЕР 0437721 А\, 1991. 4$ 4096227 А, 1978. Ц 468796 А, 19175. 4$ 4110392 А, 1918. ЕР 418155 А_2, 1991. (85) Дата перевода заявки РСТ на национальную фазу: 23.09.94 (86) Заявка РСТ: УР 9400080 (21.01.94) (87) Публикация РСТ: М/О 94/16802 (04.08.94) (98) Адрес для переписки: 103735 Москва, ул.Ильинка 5/2, Союзпатент (71) Заявитель: Дайкин Индастриз Лтд. (Р) (72) Изобретатель: Осаму Танака (+Р), Тосио Кусуми (.Р), Дзун Асано (.4Р), Кацутоси Ямамото (.Р), Осаму Иное (.Р), Синити Таен (УР), Нобуки Ураока (+Р), Синдзи Тамару (/Р) (73) Патентообладатель: Дайкин Индастриз Лтд. (Р) (54) ПОРИСТАЯ ПОЛИТЕТРАФТОРЭТИЛЕНОВАЯ ПЛЕНКА И СПОСОБ ЕЕ ПОЛУЧЕНИЯ (57) Реферат: Изобретение относится к технологии волочения политетрафторэтиловых пленок и может быть использовано в производстве жидкостных фильтров, воздушных фильтров для очистки внутренней атмосферы в чистых помещениях промышленности ...

Film-forming solution and method for producing separation membrane using same

本发明提供适宜用于中空纤维膜、平膜等分离膜的制造的造膜溶液。所述造膜溶液含有乙酰基取代度为2.7以上的三乙酸纤维素、热致相分离用的良溶剂、及热致相分离用的不良溶剂，其中，上述良溶剂可以使上述三乙酸纤维素(固体成分浓度25质量％)加热溶解，上述不良溶剂直到上述良溶剂的加热溶解温度为止不能使上述三乙酸纤维素溶解，通过含有上述良溶剂和上述不良溶剂这两者，可以使加热溶解后的三乙酸纤维素溶液在冷却至室温(20～30℃)的期间发生相分离，上述良溶剂与上述不良溶剂的合计量中的混合比例为：上述良溶剂5～40质量％、上述不良溶剂60～95质量％。

AFX-structured zeolite membrane, membrane structure, and method for producing membrane structure

在对AFX膜(20)的膜表面照射X射线而得到的X射线衍射图案中，(110)晶面的峰强度为(004)晶面的峰强度的2.5倍以上。

Method for dynamic filtration of crosslinked hydrogels

本发明涉及一种用于动态过滤基于交联生物聚合物的水凝胶以从凝胶中去除非所需分子的方法。确切地说，本发明涉及使用具有旋转和半渗透过滤圆盘的动态过滤构造对透明质酸水凝胶进行动态过滤。

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본 발명의 실시 형태는 유기 고분자 수지를 포함하는 분리막으로서, 구멍 직경 100nm 이상의 세공 용적 V1이 0.3cm 3 /g 이상 0.5cm 3 /g 이하이고, 구멍 직경 100nm 미만의 세공 용적 V2가 0.02cm 3 /g 이상 0.1cm 3 /g 미만이고, 세공 용적 V2와 상기 세공 용적 V1의 비 V1/V2가 3 이상 60 이하인 분리막이다.

Material and applications therefor

一种凝胶膜或分离的凝胶膜，它包括被分散介质，例如水至少部分隔开且以基本上平面的方式排列形成导电基体的石墨烯或化学转化的石墨烯的片材。

Separation membrane and method for producing separation membrane

本发明所要解决的课题是提供具有高透过性能的主要由热塑性树脂形成的分离膜。本发明涉及一种分离膜，其含有热塑性树脂，上述分离膜的空隙的宽度为1nm以上且1000nm以下，上述空隙的曲路率为1.0以上且6.0以下。

Chemical liquid manufacturing apparatus and method of manufacturing chemical liquid

提供一种化学液体制造装置。所述制造装置包括：至少一种过滤介质，选自离子交换介质及离子介质；以及温度控制单元，被配置成控制欲由所述至少一种过滤介质处理的材料的温度。也提供一种使用所述装置制造化学液体的方法。

Novel method for producing PBI (Poly-p-phenylene benzobisoxazole) membrane without organic solvent

一种由在PPA工艺中聚合和浇铸的凝胶PBI膜开始制备PBI膜的新型工艺，其中将酸浸凝胶PBI在一系列水浴中中和并进行与基材相关的受控的干燥，制得PBI膜，无需使用有机溶剂。

Porous Teflon and preparation thereof

本发明涉及多孔聚四氟乙烯(PTFE)，由此制造 的成型制品，以及制造所述制品的方法。

Composite porous membrane of acetylated alkyl cellulose and polyolefinketone

본 발명은 지지층, 및 상기 지지층의 외주면에 동심원 상으로 구비되어 상기 지지층을 둘러싸는 코팅층으로 구성되고, 상기 지지층은 아세틸화 알킬 셀룰로스 고분자를 포함하고, 상기 코팅층은 폴리올레핀케톤 고분자를 포함하는 것을 특징으로 하는 복합 중공사막에 관한 것으로, 본 발명에 따른 복합 중공사막은 고투수성 및 고제거율을 가지면서 고강도를 유지하고 있어, 정수처리용 분리막 모듈, 중수처리용 분리막 모듈, 생물막 반응기용 침지형 분리막 모듈, 화학적 혼합물 분리용 모듈, 해수담수화용 전처리 분리막 모듈 등의 차세대 고효율 분리공정에 적용하는 것이 가능하다.

Composite films comprising planar nanoporous oxide ceramic membranes and multi-functional filters using the same

본 발명은 실내공기와 연소가소, 배기가스 등의 정화를 위한 다기능 필터장치, 그리고 수처리와 식·음료, 유류, 혈액, 단백질, 바이러스 등의 정제를 위한 복합재료 막 및 다기능 필터에 관한 것으로서, 판상의 금속을 소정의 패턴으로 패턴닝한 후 양극산화함으로써 제조한 나노크기의 직관통공이 형성된 양극산화 나노다공질 산화물 세라믹 막과, 금속 지지체부, 금속 결합부로 이루어진 복합재료 막을 포함하여 구성되는 것을 특징으로 하는 판상의 양극산화 나노다공질 산화물 세라믹 막을 포함하는 복합재료 및 이를 이용한 다기능 필터를 기술적 요지로 하며, 또한 상기 다기능 필터는 상기 복합재료 막과 함께 또는 각종 금속촉매물질 또는 중합체 기능성 물질을 코팅한 복합재료 막을 혼합하여 적층 조립하여 형성된 것이다. 이에 따라 보다 나은 기계적 특성과 열 및 기계적 내충격성을 부여함 아울러 다른 구조물과의 접합성이나 연결성을 향상시키고, 다른 디바이스에의 적용성도 향상시킬 수 있으며, 종래의 세라믹 필터에 비하여 훨씬 더 큰 비표면적에 의한 여과효율의 증대와 다기능성 부여, 구조의 단순화와 집적화를 도모할 수 있는 이점이 있다. 필터 투석 정제 나노다공질 산화물 세라믹 막 복합재료 막 판상 직관통공

Process for manufacture of porous polymer by use of porogen

本发明涉及一种生产多孔聚合物的方法,包括如下步骤:1)将成孔材料分散在单体组分连续相中,其中所述单体组分连续相包含至少一种具有至少一个全氟聚醚单元的单体且其中所述成孔材料为任选取代的聚(亚烷基)二醇;2)然后聚合单体连续相;以及3)从多孔聚合物中除去成孔材料。

Porous membranes for high pressure filtration

本发明涉及一种适用于高压过滤方法的多孔膜。

Polyamide nanofiltration composite membrane and manufacturing method thereof

본 발명은 폴리아미드 나노복합막 및 그의 제조방법에 관한 것이다. 본 발명은 다공성 지지체 상에, 다관능성 아민 함유 수용액과 다관능성 아실 할라이드함유 유기용액간의 계면중합시, 상기 유기용액에 유기 인산염이 더 함유되어 형성된 폴리아미드 활성층으로 이루어진 폴리아미드 나노복합막을 제공하는 것으로서, 나노여과막 또는 역삼투막 분야에서 요구하는 40∼90% 수준의 염배제율을 유지하면서 40∼90 GFD수준의 투과유량을 충족한다. 이에, 본 발명의 폴리아미드 나노복합막은 나노여과 수준의 고유량을 구현하므로, 단위시간당 처리용량이 증가하게 되며 수처리 공정상의 효율성을 높일 수 있다. 나아가, 본 발명의 폴리아미드 나노복합막은 다양한 나노여과 공정에 적용 가능하며, 특히, 정수기, 해수담수화 공정의 전처리 장치, 연수기, 정수 처리장치, 폐수 처리장치 또는 식품 정제장치에 적용할 수 있다.

Fabrication of high permeable reverse osmosis membranes

본 발명은 고 투과성 역삼투압 분리막의 제조방법에 관한 것으로서, 더욱 상세하게는 다공성 지지체막 위에 비다공성의 폴리아마이드 박막이 도포되어 있는 복합막 형태의 분리막을 제조함에 있어, 지지체와 폴리아마이드 박막간의 결합력을 크게하여 고 내구성을 보유하도록 하기 위해서 지지체를 특정 결합제 용액으로 전처리한 후 확립한 도포용액 속에 일정시간 동안 담구어 표면 중합법에 의해 고 투과성의 폴리아마이드 활성층을 형성시켜 복합막을 제조하며, 또한 제조된 복합막을 아민류, 알코올류 또는 산류 등이 함유되는 용액속에서의 후처리를 통하여 막의 친수 특성을 증가시킴으로써 음용수 제조 및 공업용수 분리 정제를 저압 하에서도 효과적으로 수행 가능하도록 하는 고 내구성 및 고 투과성을 가지는 역삼투압 중공사 분리막의 제조방법에 관한 것이다.