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WO/2023/166881A1 |
An ultrapure-water production system for producing ultrapure water having a reduced boron concentration, the system being equipped with: a primary-pure-water tank (20) which communicates with the outside air and in which primary pure wat...
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WO/2023/163218A1 |
The present invention addresses the problem of providing: an electret sheet which has at least one functional property selected from an anti-bacterial property, an anti-viral property and an anti-fungal property and has excellent electro...
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WO/2023/163633A1 |
A method for producing a filtering material comprising a cellulosic material and a positively charged polyelectrolyte comprising polyvinylamine (PVAm), wherein said method comprises at least the steps of: - providing a stock comprising s...
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WO/2023/158184A1 |
The present invention relates to a water purifier and a filter module therefor. The filter module according to an embodiment of the present invention comprises: a housing into which raw water flows; a hollow cylindrical carbon block prov...
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WO/2023/156592A1 |
The invention relates to a method for producing a filter element (12), in particular for use in electrostatic separators, comprising the method steps: a) producing or providing a planar first medium (14) in web form, having a first carri...
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WO/2023/155013A1 |
A method of manufacturing filters from regolith or 3d printing metal residues is presented, the method comprising (a) laying down a layer of particles of regolith or 3d printing metal residues into a mold; (b) closing the mold; (c) in-mo...
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WO/2023/152939A1 |
[Problem] The purpose of the present invention is to provide: a filtering material capable of maintaining filtration processing performance over a long period and at a low cost; a filtering device; and a filtering material production met...
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WO/2023/153735A1 |
The present invention relates to a composite material comprising: a biodegradable polymer resin; a cellulose fiber; a viscosity modifier; and an acidic catalyst, wherein the cellulose fiber includes a biodegradable polymer that is a surf...
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WO/2023/149178A1 |
[Problem] To provide a winding filter that can easily be manufactured while being provided with shape retention properties equivalent to those in the past even without heat treatment. [Solution] A winding filter formed in a cylindrical s...
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WO/2023/146013A1 |
The present invention relates to a sterilization filter and an air filtration product using same and relates to a sterilization filter coated with a fatty acid having a sterilizing effect on bacteria, fungi, and viruses, and to a product...
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WO/2023/143198A1 |
A deep-bed filtering medium and a preparation method therefor. The deep-bed filtering medium comprises a filtering medium body, which comprises fibers and a filter aid, wherein the fibers comprise crude fibers and superfine nanofibers; t...
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WO/2023/141041A1 |
Disclosed herein are systems and methods for treating air.
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WO/2023/140284A1 |
The present invention provides a collecting filter (1) comprising: a filter membrane (11) having a porous structure, said membrane (11) having one surface and filtering a nanocarbon material from a dispersion medium containing the nanoca...
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WO/2023/137688A1 |
The present invention discloses an aerosol nanofiber filter membrane, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: dissolving polyvinylidene fluoride and polyacrylonitrile t...
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WO/2023/138427A1 |
An air filtering fabric and a mask, relating to the technical field of air filtration. The air filtering fabric comprises a folding portion and positioning portions. The folding portion is formed by folding a soft fabric into a plurality...
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WO/2023/133779A1 |
The present application relates to an air filter component, a filter cartridge and a respirator. The air filter component is made of a sheet, comprising: a filter portion comprising a first wave portion and a second wave portion; and a p...
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WO/2023/136458A1 |
Disclosed in the present specification are: a coating filter having a coating layer formed on the surface of a filter, so as to have improved cleanability; and a hood to which same is applied. The coating filter according to one embodime...
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WO/2023/135156A1 |
The invention relates to a device for holding a filter pad for water purification. The invention also relates to an activated carbon filter for purifying drinking water and to a table-top water filter and a filter system. The invention a...
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WO/2023/130339A1 |
The present invention is an electrospun web including a carrier substrate and an electrostatically charged nanofiber. The electrospun web has a pressure drop of about 5 mmH2O or less, a percent penetration of about 50%or less, and a clar...
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WO/2023/127526A1 |
A filter according to the present invention comprises a filter base section that has a first main surface and a second main surface on the reverse side from the first main surface, and which is provided with a plurality of through-holes ...
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WO/2023/128520A1 |
The present application relates to a lyocell material, a smoking article filter comprising the lyocell material, and a method for manufacturing same. The lyocell material and the smoking article filter comprising same, manufactured accor...
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WO/2023/123072A1 |
A high-breathability biofilm composite structure (3), mainly comprising a macromolecular base material (1). A plurality of groups of nano composite metal clusters (2) are provided on the surface of the macromolecular base material, so th...
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WO/2023/128522A1 |
The present application relates to a lyocell material for a cigarette filter, a cigarette filter comprising the lyocell material, and respective manufacturing methods therefor. The lyocell material and the cigarette filter comprising sam...
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WO/2023/127279A1 |
Provided is a filter member having a filter that exhibits a long filter life and that can maintain a particle concentration in a particle-containing liquid being filtered. The filter member has a filter that has an opening diameter that ...
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WO/2023/129912A1 |
Processes for increasing an affinity of a filter media to airborne viral particles. A fiber substrate comprising borosilicate is provided. The fiber substrate may comprise acidic functional groups. A metal salt solution is introduced to ...
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WO/2023/128889A1 |
Invention relates to a filter (3) in nano-porosity structure allowing passage of air upon centrifuging and having a matrix in flexible structure taking shape of surface it covers and at least a cellular layer (31) containing at least a g...
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WO/2023/125494A1 |
A high-efficiency supercritical device, comprising a gas-liquid separator (3) and a carbon dioxide filter (4) which are in communication with each other by means of a pipe. The gas-liquid separator (3) is used for separating a gas-liquid...
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WO/2023/127682A1 |
The present disclosure provides a coalescer filter that is used in a solvent extraction method for collecting metal contained in a secondary battery, said coalescer filter comprising first and second filter media, wherein the first filte...
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WO/2023/128099A1 |
The present invention relates to a method for manufacturing a filter edge band non-woven fabric, and more specifically, to a method for manufacturing an environmentally friendly filter edge band non-woven fabric that replaces an environm...
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WO/2023/128901A1 |
The invention relates a fabric (10) to be used in the production of masks made of antibacterial or non-antibacterial textile material, which has the possibility of one or more times usable in the medical field characterized in that a fab...
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WO/2023/126672A1 |
The invention provides apheresis devices and their use for substantial removal of all types of cfDNA for treatment of various diseases and during perfusion of an organ and/or anatomical cavity, to limit the negative effects of circulatin...
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WO/2023/128523A1 |
The present application relates to a lyocell material with a modified cross section, a cigarette filter including the lyocell material, and a manufacturing method therefor. The lyocell material and the cigarette filter including same rep...
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WO/2023/120958A1 |
Disclosed are a nanofiber filter and a method for manufacturing same. A nanofiber filter may include a pleated base; and nanofibers attached to the base by electrospinning, wherein the nanofibers may be attached onto the base while the p...
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WO/2023/119894A1 |
The purpose of the present invention is to make it less likely that a portion of a joined metal wire will catch on other components or the like. A hollow cylindrical filter 200 in which one or a plurality of metal wires 220 are wound so ...
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WO/2023/121680A1 |
A filter for an airfoil of a vane of a turbomachine is disclosed. The filter includes a mounting member for mounting to an endwall of the vane. The mounting member has a first flow exit opening defined therethrough for fluid communicatio...
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WO/2023/121487A1 |
The filtering and absorbing material is intended for an absorption of pollutants from the- air and for a filtration, ventilation and air conditioning of the air, particularly for a filtration in household appliances, cars, constructions ...
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WO/2023/113101A1 |
Provided are a manufacturing method of an antibacterial nonwoven fabric, and an antibacterial nonwoven fabric manufactured using the manufacturing method, the method allowing copper to be deposited on a calcium carbonate powder so that a...
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WO/2023/114030A2 |
A system for processing a fluid to remove dissolved solids that uses pressure-based membranes. The fluid passes through multiple membranes to achieve the desired parameters for the fluid.
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WO/2023/114374A1 |
Nonwoven fabrics are provided that include (i) a plurality of continuous matrix fibers comprising a first polymeric material having a first melting point and including a first polymer component, in which the first polymer component compr...
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WO/2023/109970A1 |
The present invention relates to the technical field of the preparation of a mineralized material, particularly provides a mineralized filter element and a preparation method therefor, and aims to solve the problem of unstable mineral pr...
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WO/2023/107726A1 |
A composition comprises a hierarchically structured material and a plurality of nanoscale features disposed on at least a portion of a surface of the hierarchically structured material, wherein the plurality of nanoscale features include...
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WO/2023/105881A1 |
[Problem] To provide a dust collector and a regeneration method for a metal filter of the dust collector, whereby the metal filter can be easily regenerated while attached to the dust collector. [Solution] This dust collector 1 includes ...
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WO/2023/106230A1 |
The present invention provides: a melt-blown nonwoven fabric which has high strength, elongation, and particle collection efficiency; and the like. The present invention provides a melt-blown nonwoven fabric which contains fibers, wherei...
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WO/2023/106471A1 |
The present invention relates to an antibacterial or antiviral filter which has improved coating durability and ultraviolet resistance. More specifically, the present invention relates to: a polymer filter which can be made of various fi...
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WO/2023/105882A1 |
[Problem] To provide: a method for diagnosing deterioration of a metal filter which makes it possible to accurately diagnose metal filter deterioration, regardless of whether a dust collector is operating or stopped; and a deterioration ...
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WO/2023/101940A1 |
Nonwoven fabrics are provided that include a first meltblown layer, in which the first meltblown layer comprises a first polymeric material including (i) a first polymer component and (ii) optionally one or more first additives. The firs...
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WO/2023/101437A1 |
Disclosed is a method for manufacturing PTFE fiber for a PTFE membrane catalyst filter, in which mixing, aging, compression, extrusion, rolling, sintering, oiling/stretching, and slitting processes are carried out in a process of manufac...
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WO/2023/094052A1 |
The invention relates to a filter device for an additive manufacturing device for purifying a process gas of the additive manufacturing device, the filter device having at least one permanent filter for purifying a process gas during ope...
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WO/2023/095799A1 |
An electret according to the present invention contains inorganic particles and a dispersant in a polyolefin resin, and further contains a nitrogen-containing compound. If a is defined as the maximum value of the depolarization current a...
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WO/2023/095800A1 |
An electret according to the present invention contains zinc oxide particles in a polyolefin resin. When subjected to photoluminescence measurements, the zinc oxide particles exhibit a ratio (B/A) of the photoluminescence intensity A in ...
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