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WO/2022/040578A1 |
Provided herein are filter media structures having antimicrobial and/or antiviral properties. In particular, the present disclosure describes filter media structures having a first layer with an electret web and a second layer that demon...
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WO/2022/038371A1 |
A removable filter is provided. The filter comprises a porous substrate; and an anti- pathogenic coating provided on at least part of the porous substrate. The concentration of the coating varies across the substrate to provide a coating...
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WO/2022/033931A1 |
The invention relates to a method for producing a respiratory protection mask (1) comprising a filter material piece (2) made of an air-permeable material, comprising the steps of: providing a first non-woven material; compacting the fir...
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WO/2022/033948A1 |
The invention relates to a self-disinfecting antiviral filter material (10) comprising an air-permeable carrier (11) and a composite coating (12) connected to the carrier (11), said composite coating comprising at least one color pigment...
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WO/2022/035607A1 |
A mask comprising one or more layers of nonwoven polyolefin fabric forming an inner face layer and one or more layers of nonwoven polyolefin fabric forming an outer visible layer, and at least one middle nonwoven fabric layer between the...
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WO/2022/034437A1 |
Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted-benzoic acid or a substituted-benzoate salt. The benzoic acid and benzoate salts are substituted by a hydroxyl or...
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WO/2022/034442A1 |
A multilayer filter stack is disclosed. The multilayer filter stack includes a first filter layer defining a first side and an opposed second side and a second filter layer defining a first side and an opposed second side. The second fil...
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WO/2022/033979A1 |
The invention relates to a filter element for filtering a fluid which comprises a catch unit, an inlet through which fluid can be supplied to the catch unit, and an outlet through which fluid can be discharged from the catch unit, wherei...
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WO/2022/034444A1 |
Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted- or unsubstituted benzoate salt. The substituted benzoate salts are substituted by a hydroxyl group. The substitu...
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WO/2022/029143A1 |
There is disclosed a collector for machine fluids, comprising a mat having a perimeter wall upstanding therefrom, the mat and/or the wall comprising oleophilic material and the wall being water-permeable, so that water falling into the c...
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WO/2022/032051A1 |
The present disclosure is directed methods and apparatus of a V-Bank filtration system capable of maintaining desired air flow rates while effectively filtering the air. These methods and apparatus charge particles and then capture those...
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WO/2022/029071A1 |
The invention relates to a vacuum-cleaner filter bag comprising a wall which is made of an air-permeable material and surrounds an inner chamber, and an inlet opening introduced into the wall, wherein the air-permeable material comprises...
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WO/2022/022453A1 |
A nanofibrous membrane with nanocomposite structure which can be used to make a reusable face masks a skeleton component comprising hydrophobic nanofibers with large dimensions (e.g., diameter of 500-1000 nm) and a functional component w...
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WO/2022/024049A1 |
Embodiments of the present disclosure generally relate to coated substrates having, e.g., anti-viral properties, to articles including the coated substrates, and to processes for making such coated substrates and articles. In an embodime...
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WO/2022/025523A1 |
A method for manufacturing an activated carbon filter using double raschel knitted fabric as a carrier, according to an embodiment of the present invention, may comprise the steps of: preparing a carrier; coating the surface of the carri...
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WO/2022/025317A1 |
The method for producing a nanocellulose support comprises coating a container with surface-treated nanocellulose solution, forming a nanocellulose film by drying the coated nanocellulose solution, and modifying the surface properties of...
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WO/2022/023054A1 |
The invention relates to a fiber material composite (10). In order to specify an improved fiber material composite (10), said fiber material composite has at least a first region (14), which comprises metallic silver and manganese(IV) ox...
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WO/2022/023525A1 |
A protective mask comprises a main body and a functional part for breath- triggered release of a virus and/or bacteria neutralizing substance. The functional part is provided on the inner side of the main body and is arranged to face the...
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WO/2022/025434A1 |
The present invention relates to positively charged filter material with excellent ability for removing charged particles efficiently, and a method for producing the filter material, the positively charged filter material, more specifica...
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WO/2022/016232A1 |
Disclosed herein is a metal organic framework composition comprising a porous metal organic framework material; and a stimuli responsive polymer confined within pores of the porous metal organic framework material, the stimuli responsive...
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WO/2022/020549A1 |
Filter media comprising polyethersulfone, related components, and related methods are generally described.
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WO/2022/018059A1 |
A method for cleaning at least one filter material, in particular a filter material used in the production of a respiratory protection mask (M), comprising the step of subjecting this filter material to a supercritical fluid, preferably ...
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WO/2022/018079A1 |
The invention relates to a mask (10) comprising a main body (12) in turn comprising two end parts (18) and a central portion (20) including a filtering region (32). The main body (12) is a tubular-shaped knit fabric. Each end part (18) h...
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WO/2022/019359A1 |
The present invention relates to a multifunctional air purification apparatus having functions of fine dust removal, disinfection of bacteria and virus, humidity control, and generation of oxygen and anions, and more specifically, to a m...
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WO/2022/015987A1 |
Air filters and masks containing activated carbon cloth material, optionally with silver included, are described that are effective at removing virus from the air, immobilizing, and inactivating. The filters and masks can immobilize and ...
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WO/2022/011873A1 |
A high-temperature-resistant glass fiber woven fabric and a preparation method therefor, which relate to the technical field of high-temperature filtration. The woven fabric comprises a base fabric and an organic coating, wherein the org...
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WO/2022/011689A1 |
A high filtration filter for filtering aerosols with low pressure drop across the filter and reduced cake formation when the aerosols penetrate through from an upstream side to a downstream side is disclosed. The filter (100) includes a ...
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WO/2022/008370A1 |
The invention relates to a seamless manufacturing processes for 3-dimensional waterproof and breathable porous polymer membranes by spraying, dip-coating or painting a substrate with a dispersion comprising polymer, coated or non-coated ...
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WO/2022/008614A1 |
The disclosure relates to a filtration media comprising a fibrous web impregnated with a resin composition comprising lignin. The fibrous web comprises the lignin in an amount of from 0.1 to 30 wt% by weight of the fibrous web, and the l...
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WO/2022/009028A1 |
A pleated multilayer air filter assembly including a primary filtration layer and a prefilter layer that are bonded to each other and are co-pleated with each other. The primary filtration layer includes meltblown electret fibers. The pr...
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WO/2022/011111A1 |
A face mask includes a fabric filter configured to be worn on a user's face. A composition with anti-viral properties is arranged on the fabric. The composition preferably includes anti-viral oils and an anti-viral metal such as copper o...
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WO/2022/008883A1 |
Certain examples of the present disclosure relate to a method for manufacturing a ceramic object, the method comprising: forming a ceramic structure by 3D printing the ceramic structure with a binder jetting 3D ceramic printer using a ce...
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WO/2022/008520A1 |
The invention relates to a device 1 for reducing the number of active microorganisms 2 in fluids, comprising at least one flow region 3 through which the fluid can flow. The flow region 3 comprises at least one antimicrobial component 5 ...
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WO/2022/008072A1 |
The invention relates to a face mask for the nose and mouth to protect against the growth and spread of unpleasant odours, bacterias, viruses and mould. The mask consists of two layers. The material is woven from Giza cotton and the fibr...
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WO/2022/003775A1 |
[Problem] To provide a sterilization filter that can be easily attached to various types of air circulation devices and is versatile. [Solution] Provided is a sterilization filter in which a sterilization non-woven fabric including a cop...
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WO/2022/004901A1 |
The present invention relates to a wet electrostatic nonwoven fabric consisting of electrostatic powder and electrostatic fibers and, more specifically, to a wet electrostatic nonwoven fabric consisting of electrostatic powder having an ...
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WO/2022/003965A1 |
The present disclosure addresses the problem of providing: a filter medium for air filters, said filter medium achieving a high PF value and high water repellency, while having practically sufficient stiffness and strength; and a method ...
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WO/2022/005154A1 |
A composite filter comprises: a filter unit, which filters air and includes a filter member provided with multiple filter parts having side surfaces connected to each other such that the filter parts are rotatable relative to each other;...
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WO/2022/003433A1 |
Embodiments include a filter material including an electrospun nanofiber membrane and an active nanomaterial agent incorporated into the electrospun nanofiber membrane, wherein the electrospun nanofiber membrane filters disease-causing a...
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WO/2022/004900A1 |
The present invention relates to wet electrostatic non-woven fabric, more specifically to wet electrostatic non-woven fabric in which dielectric powder is mixed in with polyethylene or polypropylene powder and made into powder, and same ...
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WO/2022/004480A1 |
The purpose of the present invention is to provide an electret fiber sheet that has high collection performance and that is suitably used in an air filter, etc. The present invention is an electret fiber sheet configured from polyolefin-...
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WO/2021/262977A1 |
A blended polymer comprising, an amorphous thermoplastic polymer and a thermoplastic semi-crystalline polymer, each of the polymers being essentially miscible in the other and being blended at a weight ratio of amorphous polymer/semi-cry...
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WO/2021/259420A1 |
The invention relates to a method for producing a fibrous web containing polylactide fibres and, as necessary, other fibres, in which (a) a fibrous ply containing polylactide fibres and, as necessary, other fibres are laid on a substrate...
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WO/2021/258134A1 |
The present invention relates to a smoking tip, a filter sheet for forming a smoking tip, and a booklet for forming smoking tips. In one aspect of the present invention, a filter sheet comprises: a sheet having a fabric layer thereon; wh...
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WO/2021/262296A1 |
An inflator (10) for generating inflation gases for a safety device includes a filter (62) having a main body portion (66) constructed of metal and an opening passing through the main body portion (66) in an axial direction. The opening ...
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WO/2021/261860A1 |
The present invention relates to an air purifier. Specifically, an embodiment of the present invention may provide an air filter comprising: a filter member that includes a plurality of vertical wrinkles extending vertically and a plural...
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WO/2021/262974A1 |
A polymeric composition comprised of poly(methylmethacrylate) (PMMA) and polylactic acid (PLA) having a surface charge potential of at least about 50 volts in the absence of any other charge enhancing component may be made by melt blendi...
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WO/2021/257582A1 |
In one aspect, a material structure is disclosed, which includes a macroscopic porous substrate configured to receive a flow of a medium for passage of at least a portion thereof through the porous substrate. At least one porous coating ...
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WO/2021/255401A1 |
The invention relates to a filtering face-piece respirator made of polyvinylidene fluoride and to a method for producing said respirator. The invention also relates to a method for reconditioning said respirator. The invention is also di...
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WO/2021/255390A1 |
The invention relates to a nonwoven web obtained by electrospinning, suitable for filtering nanoscale and/or submicrometer scale aerosols, comprising a multiplicity of fibers having composition C1, the composition C1 containing at least ...
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