Abstract: The invention provides membranes useful for filtration of water and other liquids. The membrane may be a composite membrane having a polymer layer incorporating quaternary phosphonium or ammonium groups. The polymer layer may be resistant to protein adsorption in an aqueous environment. The membrane may also be a surface-modified membrane in which a polymer having quaternary phosphonium or ammonium groups is covalently attached to the membrane surface. Methods for making and using the membranes of the invention are also provided.

Abstract: An integral latex foam having a first layer foam and a second and/or subsequent layer of latex foam is disclosed. The first layer foam contains an additive that is applied in the form of a solution, emulsion or dispersion. The first layer has a thickness from 0.01 to 9 mm.

Abstract: A method for forming and immobilizing small particles on a filter substrate using a first and second polymer solution, a solution of sodium bromide and a solution of a metal salt. The method adjusts the pH of at least one of the first and second polymer solutions, immersing the filter substrate in the first polymer solution and immersing the filter substrate in the second polymer solution. The method includes repeating the steps of immersing the filter substrate in the first solution and the second solution alternately until desired number of layers is achieved. The method allows for the filter substrate to be immersed in the solution of the metal salt and subsequently in the solution of sodium bromide.

Abstract: The invention pertains to a catalysed particulate filter provided in its entire dispersion side and within its partition walls with a first catalyst being active in selective catalytic reduction of nitrogen oxides, and in its entire permeate side with a second catalyst combination with a catalyst being active in oxidation of ammonia mixed with a catalyst being active in oxidation of carbon monoxide and hydrocarbons and a method for its preparation. The mean particle size of the first catalyst is smaller than the mean pore diameter of the longitudinal porous walls, and the mean particle size of the second catalyst combination is larger than the mean pore diameter of the longitudinal walls. In the example, the first catalyst is a silica aluminium phosphate SAPO-34 promoted with 2% copper and the second catalyst is a mixture of platinum and palladium (molar ratio 3:1) supported on alumina particles and beta zeolite powder with 1.0% copper.

Abstract: A method of forming a composite membrane (104) comprising particles of a filler material (110) in a polymer matrix (114) is described. In an example, the method includes the steps of: providing a support surface (100); applying particles of filler material onto the support surface to form an array of particles (110) and interspaces (112) between the particles; and applying matrix material to the filler material on the support surface such that matrix material (114) is applied in interspaces. By applying the particles to the surface, followed by the application of the matrix material, in some examples a more desirable distribution of the particles in the final membrane may be achieved.

Abstract: Method for the preparation of a catalysed particulate filter and a particulate filter prepared by the method.

Abstract: A separation membrane is provided containing hydrophilic molecules and having, as formed on at least one surface of a feed side and a permeate side thereof, a height difference of from 80 ?m to 2000 ?m, in which a weight of the hydrophilic molecules in a bone-dry separation membrane is from 0.1% to 40% based on a weight of the bone-dry separation membrane from which the weight of the hydrophilic molecules has been subtracted.

Abstract: A method of producing a porous membrane, the method comprising: casting a polymer solution, in which a polymer is dissolved in a mixture of a good solvent, a poor solvent and a non-solvent, over a support, so as to form a casted polymer solution; drying the casted polymer solution, so as to form a cast film; and subjecting the cast film to a phase separation, wherein the porous membrane is produced under a condition where a temperature of a casted surface is lower than a temperature of the polymer solution, and each of a temperature change of the polymer solution and a temperature change of the casted surface is kept within ±3.0° C.

Abstract: A method for dispensing a foamed material onto a substrate surface, including: generating a relative movement between a substrate surface and a material dispensing apparatus exit opening, mixing at least two material components in a mixing device, generating a pressure differential between the mixing device and a dispensing region, conveying the dispensing material from the mixing device to the exit opening, and discharging the dispensing material from the exit opening onto the substrate surface.

Abstract: To provide a process capable of producing a light-weight rigid open-cell foam by a spraying method using mainly or solely water as a blowing agent, wherein a polyol system liquid is excellent in storage stability even when the blowing agent is used in a large amount, and the foam is excellent in dimensional stability without sagging and capable of forming a uniform thermal insulation layer having an excellent appearance for the purpose of constructing a whole constructions.

Abstract: A dope solution for membrane production comprising polyethersulfone having high strength, high water permeability, a high rejecting ability and excellent contamination resistance, a separation membrane, and a process for producing the separation membrane are provided. The dope solution for membrane production contains a polyethersulfone and a solvent for thermally induced phase separation selected from the group consisting of 3-pyridinemethanol, 4-methyl-1,3-dioxolane-2-one, 4-benzylpiperidine, trimethyl phosphate, 1,3-dioxolane-2-one and mixtures thereof.

Abstract: Printing one or more layers using toner and/or laminates to form one or more multi-channeled layers, with a particular pattern, including forming a desired image, for example, electrographically, on a receiver member. The multi layered channel printing apparatus and related method and print incorporates one or more static layers, and one or more moveable layers that allow a fluid to move through the micro channels via an opening or through a direct fill. It also incorporates particles in the channels to act as a packing material for separation of components of samples. The packing material can either be applied directly or using the electrographic printing process. An optional capping layer or substrate may then be applied.

Abstract: The present disclosure provides an air cleaning filter that includes a ginseng extract, a binder and a supporting material, and a method of manufacturing the same. The present disclosure may remove or sterilize microbes, such as bacteria, viruses, fungi, and the like, and provide an air cleaning function along with antibiotic and deodorization functions as well as provide an air cleaning filter which is safe to the human body.

Abstract: A filter containing a first textile and an abating chemistry. The first textile has a first side and a second side and is a non-woven, woven, or knit textile having an air permeability of between about 1 and 200 cfm. The abating chemistry is on at least the second side of the first textile and contains an adsorbent agent, an organic halogen producing agent, and optionally a binder.

Abstract: Sulfur contaminants, such as elemental sulfur (S8), hydrogen sulfide and other sulfur components in fluids (e.g., air, natural gas, and other gases, as well as water and other liquids) are removed using a silicone-based chemical filter/bath. In one embodiment, a silicone-based chemical filter includes a membrane having a cross-linked silicone that is a reaction product of an olefin and a polyhydrosiloxane. For example, sulfur contaminants in air may be removed by passing the air through the membrane before the air enters a data center or other facility housing computer systems. In another embodiment, a silicone-based chemical bath includes a housing having an inlet port, an outlet port, and a chamber containing a silicone oil. For example, sulfur contaminants in air may be removed by passing the air through the silicone oil in the chamber before the air enters a data center or other facility housing computer systems.

Abstract: An allergen deactivator including a compound of the following Formula 1: wherein R represents a straight or branched chain alkyl group of C1 to C30, and X represents H, Na, K, Mg or Ca. Also disclosed is a spray, a filter, a fiber, a fabric, a nonwoven article, a substrate, and a detergent using the allergen deactivator including the compound of Formula 1.

Abstract: A composite membrane for selective gas separation, comprises a layer system having a continuously porous, mechanically stable carrier layer, which has an average pore size in the ?m range, further having at least one continuously porous intermediate layer, which is disposed on the carrier layer and has an average pore size in the range of 2 to 200 nm, and further having a gastight functional layer, which is disposed on the intermediate layer and is made of a mixed-conductive material having a maximum layer thickness of 1 ?m. The carrier layer comprises a structural ceramic, a metal, or a cermet and has a layer thickness of no more than 1 mm. The intermediate layer is present with a total layer thickness of no more than 100 ?m and has an average pore size in the range of 10 to 100 nm. The functional layer comprises a perovskite, a fluorite, or a material having a K2NiF4 structure, such as La1-xSrxCo1-yFeyO3-8 (LSCF).

Abstract: A process for preparing curcumin encapsulated chitosan alginate sponge comprising the steps of: incorporating curcumin in a fluid phase of oleic acid; subjecting the mixture to a step of emulsification with chitosan solution by homogenization; emulsifying the resultant solution with alginate solution by homogenization; lyophilizing the final emulsion by freeze drying to produce curcumin loaded AC sponge.

Abstract: The present disclosure provides for an article of manufacture composed of a metallic structure for use in the preparation of an edible material and includes a coating of titanium nitride to prevent metal leaching from the article into the edible material when the article and edible material interact, thereby decreasing the metallic taste of the edible material and enhancing the delectability of the edible material upon consumption.

Abstract: Articles having porous or foam-like elements are provided. The design, fabrication and structures of the articles exploit properties of reactive composite materials (RCM) and their reaction products. In particular, fluids generated by reacting RCM are utilized to create or fill voids in the porous or foam-like elements.

Abstract: Example embodiments herein relate to a semi-permeable film including a nanoporous material and a polymer matrix. The nanoporous material includes a nanoporous core and a coating layer that is disposed on a surface of the nanoporous core. The coating layer may include a particle selected from a metal hydroxide particle, a metal oxide particle, and a combination thereof. A separation membrane may include the semi-permeable film. Example embodiments also relate to a method of manufacturing the semi-permeable film and the separation membrane.

Abstract: The invention is to provide a leather-like sheet having a fine image drawn by an inkjet printing method, etc., on its surface and having practically sufficient physical properties. This invention includes a leather-like sheet including (i) a fibrous substrate and (ii) a porous layer thereon, the porous layer having a surface having open pores with a diameter of 1 ?m or more and the porous layer having the surface having an image whose definition is 5 dots/mm or more, and a process for the production thereof.

Abstract: One aspect of the present invention includes a membrane. The membrane includes a porous support and a polymeric layer disposed on the porous support. The membrane further includes a plurality of substantially hydrophobic mesoporous nanoparticles disposed within the polymeric layer. A water treatment system and a method of making a membrane are also presented.

Abstract: The present invention relates to a radiation-resistant microporous membrane having a hydrophobicity gradient, to a method for the preparation thereof, and to the use of the membrane in the sterilizing filtration of gaseous fluids or as a liquid barrier in liquid-containing systems to be vented.

Abstract: There are provided a vehicle interior finishing laminate sheet in which a polypropylene resin foam board of high foaming extent having interconnected cells is used as a core member, a vehicle interior trim material, a method for manufacturing the vehicle interior finishing laminate sheet, and an apparatus therefor. The present invention relates to a vehicle interior finishing laminate sheet 1 provided with a core member consisting of a polypropylene resin foam board 2. The polypropylene resin foam board 2 is extrusion molded into a plate shape, and has an interconnected cell ratio of 50% or higher and a foaming extent of 10- to 50-fold. A plurality of polypropylene resin foam boards 2, 2 are joined to each other by the hot plate welding method or the laser transmission welding method, whereby a large-size core member of vehicle interior finishing laminate sheet 1, which is used for a roof lining or the like, can be formed.

Abstract: A coating apparatus includes modular interfaces and substrate receptors for accommodating various shapes and sizes of monolith substrates when coating layers are applied onto the monolith substrates. The monolith substrates are laterally surrounded by an elastically deformable sleeve that prevents lateral leakage of a vacuum out of the monolith substrate when a vacuum is applied to opposing ends of the monolith substrate, thereby eliminating needs for bulky vacuum chambers. The coating apparatus also includes valves and control apparatus that enable excess precursor liquid to be drained from monolith channels in-situ, without the use of additional spin-drying steps. Coating methods for using the coating apparatus are provided.

Abstract: An organic/inorganic fouling resistant composite compound is disclosed, which includes a core of a polyhedron of polyhedral oligomeric silsesquioxane and at least one arm connected to a silicon atom of the polyhedral oligomeric silsesquioxane. The at least one arm includes a vinyl-based first structural unit including at least one ethylene oxide group at a side chain of the vinyl-based first structural unit and an oleophobic vinyl-based second structural unit including a silicon group at the side chain.

Abstract: The present invention relates to a composite membrane for nanofiltration of a feed stream solution comprising a solvent and dissolved solutes and showing preferential rejection of the solutes. The composite membrane comprises a thin polymeric film formed by interfacial polymerisation on a support membrane. The support membrane is further impregnated with a conditioning agent and is stable in polar aprotic solvents. The composite membrane is optionally treated in a quenching medium, where the interfacial polymerisation reaction can be quenched and, in certain embodiments, membrane chemistry can be modified. Finally the composite membrane is treated with an activating solvent prior to nanofiltration.

Abstract: There is provided a silica membrane filter having performance of selectively separating an aromatic compound and performance of selectively separating an alcohol. The silica membrane filter is provided with a porous substrate and a silica membrane. The ratio of a He gas permeation amount to an N2 gas permeation amount (He gas permeation amount/N2 gas permeation amount) is 7 or less, and the ratio of the N2 gas permeation amount to a SF6 gas permeation amount (N2 gas permeation amount/SF6 gas permeation amount) is 1.5 or more.

Abstract: A microsieve includes a patterned forest of vertically grown and aligned carbon nanotubes with a patterned matrix of vertically aligned pores. A conformal coating of substantially uniform thickness coats the nanotubes defining coated nanotubes. An interstitial material infiltrates the carbon nanotube forest and substantially fills interstices between individual coated nanotubes. The interstitial material can be a metal material infiltrated by electroplating.

Abstract: A water filtration article has a filtration layer of thickness no larger than 10 microns including porous polytetrafluoroethylene coated with a hydrophilic coating comprising uncrosslinked ethylene-vinyl alcohol copolymer. Methods include water filtration using and manufacture of such a water filtration article.

Abstract: A two-layered osmosis membrane contains a support layer and a rejection layer. The support layer, in which a mesh is embedded, is made of a phase separation polymer and has a thickness of 50 to 200 ?m. The rejection layer, which adheres to the support layer, is made of a thin film composite polymer and has a thickness of 0.05 to 3 ?m. The mesh, which is embedded in the support layer, has an open area of 30 to 70%, a mesh size of 60-300 mesh, and a thickness of 45-150 ?m. Also disclosed is a method of making the above described membrane.

Abstract: There is provided a nanofiltration-type thin film composite forward osmosis membrane comprising a rejection layer including intrinsic separation properties; and a substrate for support of the rejection layer, the substrate comprising a porous sub-layer having long finger-like pores and a thin sponge-like skin layer. A method for synthesizing the nanofiltration-type thin film composite forward osmosis membrane is also provided.

Abstract: A method is provided for producing a particulate filter to pass through select permeate particles in a fluid medium from inflow to outflow regions while restraining reticulate particles.

Abstract: Disclosed herein is a method of producing a filter medium for treating medium and high temperature exhaust gas using foam coating and a filter medium produced using the method. The filter medium has excellent heat resistance and heat contraction resistance, and exhibits partial dust collection efficiency of 99% or more by weight, total dust collection efficiency of 99.999% or more by weight, and high dust removal efficiency, for all dust particle sizes. Further, the filter media can be efficiently used to treat medium and high temperature exhaust gas because pores having an average pore size of 30 ?m or less are uniformly distributed on the surface of the filter media.

Abstract: Provided is a semi-permeable composite membrane which exhibits both high durability and high solute-removal and water-permeation performances. The semi-permeable composite membrane is formed from a porous support membrane and a polymer membrane. The polymer membrane is formed of at least one type of polymer (a) with a positive charge in the repeating unit and at least one type of polymer (b) with a negative charge in the repeating unit and has a crosslinked structure formed by siloxane bonds between the polymer (a) and the polymer (a), between the polymer (a) and the polymer (b), and/or between the polymer (b) and the polymer (b).

Abstract: The present invention relates to a method for the production of thin film composite membranes by interfacial polymerisation, in particular through the reaction of polyfunctional acyl halides with polyfunctional amines where the polyfunctional acyl halide is applied first to the support medium.

Abstract: An objective of the invention disclosure is to provide a composite porous film that has both a sufficient chemical resistance and strength allowing suppression of heat deflection under a liquid at a high temperature, and a filter using the same; the composite porous film for fluid separation to be provided according to the invention includes a fluoropolymer resin and a SiO2 glass.

Abstract: A nanocomposite membrane includes a macroporous polymer membrane having a plurality of pores. A plurality of metal nanoparticles are synthesized and immobilized within those plurality of pores. The nanoparticles are reduced and capped with a green reducing and capping agent such as green tea extract.

Abstract: Mixed matrix membranes that are capable of separation and purification of gas mixtures are disclosed. These membranes comprise polymers that include dispersed therein nanomolecular sieve particles. In a preferred embodiment, the nanomolecular sieve particles contain attached functional groups to prevent their agglomeration.

Abstract: An inorganic membrane having an improved pore structure. The membrane has a mean pore size of up to about 100 nm and a mean particle size in a range from about 10 nm to about 100 nm. In one embodiment, the membrane comprises ?-alumina and is formed by providing a coating slip comprising ?-alumina; applying the coating slip to a support surface to form a coating layer; drying the coating layer; and firing the dried coating layer at a temperature of at least about 1000° C. to convert at least a portion of the ?-alumina to ?-alumina and form the inorganic membrane.

Abstract: A negatively charged microporous filtration medium having a high charge density comprising a porous substrate and a polymerized cross-linked polymeric coating located on the inner and outer surfaces of the substrate. The coating may be formed from a reactant solution comprising negatively charged cross-linkable polymerizeable acrylamidoalkyl monomers and acrylamido cross-linking agents which are polymerized in situ on the substrate. The negatively charged microporous filtration medium are suitable for use as prefiltration membranes for selectively removing protein aggregates from a protein solution.

Abstract: A CO2-facilitated transport membrane of excellent carbon dioxide permeability and CO2/H2 selectivity, which can be applied to a CO2 permeable membrane reactor, is stably provided. The CO2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.

Abstract: The present invention provides a multi-functional nonwoven fabric for filter that has excellent properties to adsorb various toxic/harmful substances such as odorous substances, VOCs, allergens, and pathogenic viruses, has antibacterial/antimold properties, and suppresses pressure loss to a minimal level, and the present invention also provides a method that can produce such a nonwoven fabric in a simple manner. Due to the simple steps of immersing the nonwoven fabric in an aqueous polypeptide solution and further treating it with a metal salt, it is possible to obtain a nonwoven fabric for filter having excellent adsorption properties in which the fiber surface of the nonwoven fabric is coated with insolubilized polypeptide that has been crosslinked with a metal. Also, a method that can produce such a filter in a simple manner was found.

Abstract: Nonwoven fibrous webs including a multiplicity of discrete fibers, a population of sub-micrometer fibers having a population median diameter less than one micrometer adjoining the discrete fibers, and a multiplicity of chemically active particulates secured to the nonwoven fibrous web. In some embodiments, more than 0% and less than 10% wt. of the nonwoven fibrous web is made of discrete fibers that are thermoplastic polymeric fibers, and which optionally at least partially melt and coalesce to secure the discrete polymeric fibers to each other. In certain embodiments, at least some of the particulates are bonded to the thermoplastic polymeric fibers. In other embodiments, at least some of the particulates are secured within interstices of the fibrous web, without substantial bonding to the discrete fibers. Methods of making and using such nonwoven fibrous webs are also described.

Abstract: Described herein are thin film composite (TFC) membranes, for use in forward osmosis (FO) and pressure reduced osmosis (PRO) processes. The membrane is comprised of two layers: a composite layer combining a backing layer and a porous, polymer-based support into a single layer, and a rejection layer disposed on top of the composite layer. The membrane of the invention exhibits high water flux values for FO processes, is durable, may be readily manufactured using typical membrane manufacturing processes, such as spiral winding and plate and frame processes, and has sufficient mechanical stability to handle the final membrane product.

Abstract: An object is to provide an exhaust gas purification filter that can achieve high trapping efficiency of particulate matter and low pressure loss, and the exhaust gas purification filter includes an inflow surface through which exhaust gas containing particulate matter flows in, a discharge surface from which purified gas is discharged, and a filter base body that is formed from a porous body, wherein the filter base body includes porous partition walls and gas flow paths surrounded by the partition walls, a porous film having a pore size smaller than that of pores of the partition walls is provided on each surface of the partition walls, and microgrooves having a depth shallower than the thickness of the porous film are formed on at least a part of a surface of the porous film.

Abstract: A method for fabricating a high-density zeolite membrane structure is described. The method includes the step of combining (i) a mineral zeolite material; (ii) at least one cement precursor; and (iii) an organic binder, with an aqueous component, to form an aqueous composite zeolite composition. The zeolite composition is then applied on a surface of a scaffold formed from a porous, metal oxide material. The zeolite composition is dried, and then heated under conditions to form a metal oxide-zeolite composite layer. This layer is exposed to a phosphate composition, under conditions sufficient to reduce the porosity to a level no greater than about 10%. A high-density zeolite cement composite membrane structure results. Related methods for separating hydrogen from a fluid stream, using the membrane structure, are also disclosed.

Abstract: A filter used for filtering molten metal and a preparation method thereof are disclosed. The filter comprises open-pored porous material, binder and refractory material. The refractory material is bonded on the open-pored porous material by the binder, wherein the weight proportion of the binder is at least 50% and the weight proportion of the refractory material is not more than 50%. The filter has enhanced mechanical property and high temperature resisting property, while its preparation method is more cost-efficient than usual ones.

Abstract: After a second liquid is applied to a support and dried, a first liquid is applied thereon. On a film of the first liquid, a third liquid (water) is supplied in droplets using an inkjet-type liquid supply unit. An area supplied with the droplets is referred to as porous area. Next, an organic solvent is evaporated from the film and the droplets are evaporated from the porous area. Thus, a porous film is obtained. The porous film has the porous areas in which a plurality of pores are arranged. Since the droplets are directly formed by an inkjet printing method, a condensation process and a droplet growing process are unnecessary. Thus, the porous film is produced efficiently. Shapes of the porous areas can be changed easily. The porous areas can be formed on the porous film in various patterns.