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WO/2003/049840 |
A process and apparatus (Fig 3) for the collection of biological materials from air. Collection and separation devices utilize a novel membrane structure (120) formed from a functionalized inorganic mesoporous membrane (124) supported by...
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WO/2003/049775 |
A coating material and a method for coating a hydrophobic membrane with a copolymer that contains at least one hydrophilic segment and at least one hydrophilic segment, such as a PEO-PPO-PEO triblock copolymer, so that the surface of the...
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WO/2003/047734 |
The present invention relates to a braid-reinforced hollow fiber membrane. The hollow fiber membrane comprises a reinforcing material of a tubular braid and a polymer resinous thin film coated on the surface of the reinforcing material. ...
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WO/2003/047655 |
It is intended to provide a filter for selectively eliminating leukocytes whereby leukocytes can be selectively and efficiently eliminated without worsening in the performance due to sterilization while causing little elution and minimiz...
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WO/2003/045840 |
Mesoporous articles and methods for making mesoporous articles are disclosed.
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WO/2003/046062 |
This invention relates to porous polymeric materials having discrete regions that exhibit distinct surface properties. The invention also relates to methods of making such porous polymeric materials and their applications. The geography ...
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WO/2003/042127 |
The invention relates to a method for generation of a coating on a hollow fibre, which has a porous embodiment. Said method is characterised in that the hollow fibre (11) is separated from the coating bath (12) at both sides by seals (18...
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WO/2003/039721 |
A package assembly comprising a sealed water-impermeable bag enclosing: a spiral wound filtration element comprising a piperazine-based membrane, and an aqueous solution comprises a substantially non-oxidizable buffer having capacity to ...
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WO/2003/040444 |
A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt% N-methylpyrollidone and 0-40 wt% ethanol, (ii) providing a...
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WO/2003/035233 |
A separating device which comprises two flow route grooves separated by a partition wall and, provided between them, a plurality of separation routes which pass only the molecules having a predetermined size or less&semi and a separation...
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WO/2003/035232 |
A porous membrane is provided by biaxally stretching a film of high density polyethylene (HDPE), including particles of an incompatible material. This film has a meshed network of HDPE fibers and striations of layers coplanar with the pl...
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WO/2003/034529 |
The present invention provides for a solid polymer electrolyte membrane having a fluorinated ionomer having imbibed therein a non−fluorinated, non−ionomeric polymer, wherein the fluorinated ionomer comprises at least 6 mole % of mono...
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WO/2003/033053 |
It is intended to provide a method whereby a virus and leukocytes can be simultaneously eliminated from virus−containing blood and platelets can be collected at a high yield, and a material and an apparatus therefor. A water−soluble ...
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WO/2003/033576 |
The present invention provides for a solid polymer electrolyte membrane comprising a fluorinated ionomer having imbibed therein the polymerization product of a composition comprising a non−fluorinated, non−ionomeric monomer, wherein ...
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WO/2003/033575 |
Molecularly imprinted polymer membranes for selectively collecting phosphate, nitrate and ferric ions are disclosed, prepared by copolymerizing a matrix monomer, cross-linking agent, ion imprinting complex, permeability agent and polymer...
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WO/2003/031038 |
A method for producing a hollow fiber film, characterized in that a poly(vinylidene fluoride) type resin solution which comprises a poly(vinylidene fluoride) type resin and a poor solvent for the resin and has a temperature of the phase ...
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WO/2003/031036 |
The present invention relates to nanofiltration and reverse osmosis membranes that may be used in a number of commercial applications in which a contaminant, such as salt, must be separated from a feed fluid, such as brackish water, to y...
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WO/2003/031696 |
The invention relates to a hollow fibre having high requirements in terms of the straightness and roundness thereof, and to a method for economically producing the same. The inventive hollow fibre is produced by means of a moulded body (...
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WO/2003/031533 |
A process for producing a hydrophilic material, characterized by treating a material comprising a polyvinyl pyrrolidone with a radiation while keeping the material wet with an aqueous solution containing a cationic polymer. By the proces...
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WO/2003/026832 |
A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end th...
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WO/2003/026779 |
A multilayer microporous film which comprises a thermoplastic resin and has a rough structure layer having a high proportion of open pores and a dense structure layer having a low proportion of open pores, wherein said rough structure la...
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WO/2003/024576 |
The invention relates to porous moulded bodies, in particular membranes, comprising a novel porous structure based on thermoplastic polymers and to a method for producing moulded bodies of this type, in particular membranes. Membranes of...
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WO/2003/022412 |
The invention relates to a novel proton-conducting polymer membrane based on polyazols. Said polymer membrane can be used in a variety of ways due to its outstanding chemical and thermal properties and is especially suitable as a polymer...
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WO/2003/023890 |
A hydrophilic cross-linked polymer obtainable by copolymerisation of hydrophobic and hydrophilic monomers that give a cross-linked hydrophilic polymer on polymerisation; a monomer including a strongly ionic group; and water is useful as ...
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WO/2003/022411 |
A semipermeable composite membrane which is obtained by contacting with an aqueous oxidizing agent solution a semipermeable composite membrane comprising: a thin film comprising a polyamide resin having structural units which each is mad...
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WO/2003/020425 |
Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a first layer having an electric charge and...
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WO/2003/018655 |
A process for preparing a graft copolymer membrane is provided comprising exposing a polymeric base film to a dose of ionizing radiation, and then contacting the irradiated base film with an emulsion comprising a fluorostyrenic monomer.
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WO/2003/018654 |
A process for preparing a graft copolymer membrane is provided comprising exposing a porous polymeric base film to a dose of ionizing radiation, and then contacting the irradiated base film with an emulsion comprising a fluorostyrenic or...
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WO/2003/015902 |
The present invention relates to ultra-thin high strength asymmetric microfiltration and ultrafiltration cellulosic membranes. The membranes are internally hydrophilic. A method of preparing such membranes and their use in separating pro...
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WO/2003/016384 |
The invention relates to a polymer blend membrane from a cross-linked polymer that is produced by way of a selected method. The inventive membrane has a substantially improved fracture toughness (elongation at rupture/tension) while its ...
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WO/2003/013708 |
The invention relates to a hybrid membrane combining the advantages of inorganic membranes such as solvent resistance and stability with the advantages of organic membrane materials. Said hybrid membrane consists of a ceramic carrier lay...
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WO/2003/014201 |
The invention relates to a proton-exchanging polymer and a membrane produced from the same. Said invention is characterised in that an anion exchanger in the form of a hydroxyl is added to the polymer.
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WO/2003/009926 |
It is intended to provide a blood purification membrane having excellent performance and showing little elution of blood and little adhesion of blood proteins or platelets. The above object can be achieved by using a moisten membrane, wh...
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WO/2003/008078 |
The invention provides asymmetric membranes composed of a microporous substrate whose pores contain a crosslinked gel, the density of the crosslinked gel being greater at or adjacent to one major surface of the membranethan the density a...
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WO/2003/000390 |
Membranes comprising an aromatic ether ketone polymer (e.g. polyetherketone) in sheet or hollow fibre form are made by preparing at least a 12wt % solution of the polymer in a solvent which is chemically inert to the polymer (e.g. concen...
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WO/2002/102500 |
The invention relates to a terpolymer of tetrafluoroethylene (TFE) monomer, polyvinylidene fluoride (PVDF) monomer and hexafluoropropylene (HFP) monomer for forming an ultrafiltration or microfiltration membrane, method of forming said m...
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WO/2002/100926 |
A method for the production of cellulosic flat films, comprising the steps of shaping a solution of cellulose in an aqueous tertiary amine oxide into the form of a film by means of an extrusion die with an elongated extrusion gap, - tran...
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WO/2002/100925 |
A method for the production of cellulosic flat films, comprising the steps of - shaping a solution of cellulose in an aqueous tertiary amine oxide into the form of a film by means of an extrusion die with an elongated extrusion gap - tra...
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WO/2002/099139 |
Disclosed herein is a multi-layered (1, 2, 3), composite microporous membrane comprising in at least one layer (1) a highly electropositive hydrophilic material distributed throughout wherein the material is capable of irreversibly bindi...
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WO/2002/096538 |
An improved tubular membrane (10) and process of making is disclosed comprising the deposition of fine metallic fibers (20) onto a substrate. The deposited fine metallic fibers are heated to form a flexible membrane. Catalytically active...
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WO/2002/092673 |
The invention relates to a drawn polymer film, comprising (A) a polymer or polymer blend and at least (B) one additional component with an average particle diameter of between 0.1 and 15 $g(m)m, which by means of (C) one or several secon...
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WO/2002/092497 |
The invention is a method for fabricating molecular filters (20) which can separate objects approximately 1-5 nm in range, where the filtration size is controlled by using thin films of materials and technologies to form a filtration cha...
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WO/2002/092201 |
The invention relates to a method for reducing an adsorption tendency of molecules or biological cells from solutions or suspensions on a material surface that is in contact with the solution or suspension. The invention also relates to ...
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WO/2002/092202 |
A method of treating a filter membrane or water-absorbing zone, characterized by contacting the membrane or zone with at least one member selected from the group consisting of an organic solvent, sterilized water containing an organic so...
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WO/2002/089955 |
The invention is directed broadly to microporous films prepared from immiscible blends of at least two components, preferably polymers, which are produced via melt processing, a film formed therefrom, for example by extrusion and post-fi...
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WO/2002/087735 |
It is intended to provide asymmetric porous films which are usable in blood dialysis, plasma separation, etc. and particularly excellent in the performance of selectively separating (fractionating) plasma protein, show little endogenous ...
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WO/2002/087734 |
The present invention provides porous media or membranes having a surface coating that includes a cross-linked terpolymer which has a superior combination of properties, including heat stable biomolecule resistant adsorptive properties, ...
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WO/2002/088219 |
The invention relates to a novel proton-conducting membrane based on polyazoles which can be used in a multifarious manner on account of the excellent chemical and thermal properties thereof, especially as a polymer electrolyte membrane ...
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WO/2002/087001 |
A polymer electrolyte membrane comprised of a hydrophobic hydrocarbon region (12), a hydrophilic region (14) containing covalently bound acid functional groups (24) and protic functional groups (24). The hydrophobic hydrocarbon region an...
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WO/2002/085481 |
Compositions and methods for selectively binding specific metal ions, such as Ca?+¿ and C?d¿, contained in a source solution are disclosed and described. This is accomplished by the use of a composition comprised of an EGTA ligand cova...
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