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WO/2021/219860A2 |
A removable filtration system for use in a respiratory mask device has a filter media having a three-dimensionally contoured form to fit over the face of a wearer; and a filter support joined to the filter media along at least a portion ...
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WO/2021/217235A1 |
The invention discloses a fiber filament non-woven fabric with a small pore size and a large porosity, which adopts an island type ultra-fine fiber single filament, which is juxtaposed into an unidirectional silk layer several times, and...
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WO/2021/220720A1 |
The present invention provides a depth filter which contains fine particles and coarse particles, and which exhibits excellent filtration accuracy with respect to a high concentration fluid and/or a high viscosity fluid. This depth filte...
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WO/2021/220530A1 |
Provided is a filter molded body for a gas generator, the filter molded body comprising: a circumferential wall part that has a hollow cylindrical shape, and is formed by a wound body of filter wires on which a groove is formed at one lo...
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WO/2021/219882A1 |
The present invention relates to respiratory mask device and a reusable filtration system for use therein. In particular, the respiratory mask device includes a face gasket, a removable filtration system, and an outer covering removably ...
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WO/2021/220114A1 |
Invention relates to filters capable to filter and absorb heat generated during activation of fire suppressing gas generating devices. A filtering and heat absorbing filter comprises at least the following layers: an inner layer of a ste...
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WO/2021/221027A1 |
There is a need to realize a long-filter-lifetime filter member which is for a slurry liquid having a high viscosity and a high solid component ratio. This need is met by a filter member for filtering a slurry liquid in which a net and a...
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WO/2021/221534A1 |
The invention relates to the field of mechanical engineering, and more particularly to filter elements for use in filters for purifying liquid or gaseous media. Proposed is a filter element configured in the form of a solid of revolution...
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WO/2021/214498A2 |
The present invention relates to nanofilters and nanofliter systems for personal and health care protective equipment to protect against health and safety hazards having application in healthcare, industrial, public, domestic environment...
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WO/2021/216540A1 |
A filter or mask structure, comprising a first face layer comprising a polymer and having a face basis weight, a second outer layer comprising a polymer and having an outer basis weight less than 34 gsm, and a third outer layer comprisin...
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WO/2021/215205A1 |
The purpose of the present invention is to provide a porous ceramic laminate with which it is possible to reduce pressure loss of a fluid. The present invention is a porous ceramic laminate having a first porous layer and a second porous...
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WO/2021/212219A1 |
A list of highly suitable textiles and a method to combine them into a durable reusable filtration medium with high particles filtration efficiency (PFE) and breathability that lasts over 50-75 laundering cycles. Filtration medium achiev...
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WO/2021/215680A1 |
An air purifier or air conditioner including a filter device. The air purifier includes: a main body: a suction port provided to allow air to flow into the main body; a filter provided in the main body to filter the air suctioned from th...
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WO/2021/216086A1 |
Systems and methods for using a filtration medium coated with a zwitterionic polyelectrolyte to treat slop water recovered. In some embodiments, the systems include: a treatment unit including an inlet for receiving a slop water stream i...
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WO/2021/217073A2 |
An air-permeable filter material that includes a polymeric aerogel having a polymeric matrix comprising an open-cell structure is disclosed. The air-permeable filter material can be included in a mask, which can be configured to be place...
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WO/2021/216093A1 |
Systems and methods for using a filtration medium coated with a zwitterionic polyelectrolyte to treat various fluids including, but not limited to, fracturing fluids and drilling muds recovered at a rig site. In some embodiments, the sys...
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WO/2021/208825A1 |
Provided is a photoelectric device provided with an anti-contamination apparatus; the device comprises an optical component, an optical chamber, and an anti-contamination apparatus; the optical chamber is an enclosed chamber and is used ...
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WO/2021/212153A2 |
An antimicrobial spray composition is disclosed, forming a protective film on surfaces when dried. The protective film provides antimicrobial protection by killing at least 95% of microorganisms in < 30 minutes of exposure. The spray com...
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WO/2021/209213A1 |
The present invention relates to a multi-layered filter medium with a densified layer made of synthetic fibers, as well as to the use and the method for its production.
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WO/2021/210956A1 |
Provided is an antiviral filter medium. The antiviral filter medium according to an embodiment of the present invention is implemented by including a first member formed of fibers having an antiviral component including a surfactant. Acc...
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WO/2021/209395A1 |
The invention relates to a multi-layered substrate, comprising a first layer, a second layer and a third layer, wherein an acetyl donor and a peroxygen donor are entrapped between the first layer and the second layer capable of generatin...
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WO/2021/212147A2 |
The disclosure relates to bio-secure equipment for protecting surfaces prone to exposure to microbes. The bio-secure equipment is for the protection of surfaces, with a coating layer comprising a sulfonated polymer, having a sufficient d...
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WO/2021/212150A1 |
A face mask is disclosed. The face mask includes a mask pad adapted to cover a nose and a mouth of a wearer and allows a passage of air therethrough to the wearer and restricts a passage of microbes. The mask pad has at least a surface p...
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WO/2021/212146A1 |
A system, method, and apparatus for ameliorating deposits in selective catalytic reduction systems for the reduction of nitrogen oxide emissions in steam methane reformers. The system includes positioning a dual stage refractory particul...
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WO/2021/208232A1 |
Disclosed are a nano silver-copper alloy material and a preparation method therefor. The nano silver-copper alloy material is composed of a mixture of nano silver-copper alloy particles with a particle size of 15-50 nm, and the copper me...
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WO/2021/212152A1 |
An air filter device. The air filter device comprises: a filter medium having an inlet surface for taking in air, and a discharge surface for filtered air. The filter medium having a plurality of air passages for the air to flow therethr...
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WO/2021/206312A1 |
Disclosed are composite non-woven fabric and an article comprising same. The disclosed composite non-woven fabric comprises: a meltblown non-woven fabric layer which is at least partially charged; and a spunbonded non-woven fabric layer ...
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WO/2021/205217A1 |
Personal protective equipment (PPE) (1) for protection of the respiratory tract, including a support or carcass (2) having an anterior part (20) provided with air inlet and outlet holes (3), a replaceable filter (7) and a cover (8) to re...
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WO/2021/206359A1 |
A nonwoven fabric, a composite nonwoven fabric, and an article comprising same are disclosed. The disclosed composite nonwoven fabric comprises a first spunbond nonwoven fabric layer, an electrostatically-treated meltblown nonwoven fabri...
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WO/2021/206256A1 |
A mask, according to one embodiment of the present invention, may control air permeability by comprising an air filter unit capable of expanding or shrinking, in at least one direction, a filter which, by means of pores, filters particle...
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WO/2021/207132A1 |
This invention relates to an aqueous composition comprising, (a) an ion-exchange resin (IXR) comprising microporous beads having a particle size ranging from about 200 um to about 1000 um; (b) a water soluble surfactant having a molecula...
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WO/2021/207028A1 |
A porous support for nano-thickness membranes of less than 100 nanometers local surface roughness, suitable for the support of single-layer membranes of from about 1 to 500 nanometers in thickness, and for multiple layer membranes of up ...
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WO/2021/206586A1 |
A filter material for purifying a liquid or gas consists of two layers. A first coarse filtration layer is based on a non-woven fibrous material, and a second fine filtration layer is based on filter paper and/or filter board and is capa...
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WO/2021/207663A1 |
An embodiment is an article configured to inhibit or prevent pathogen growth. The article includes an inner layer configured to face a wearer's skin when the face covering article is applied to the face of the wearer; a middle layer adja...
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WO/2021/204469A1 |
The present invention concerns a method of manufacturing a filtration material for hygienic or sanitary use and such filtration material, which comprises an air-laid non-woven fibrous mat comprising bi-component fibres and a portion of g...
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WO/2021/206318A1 |
The present invention provides: a fiber membrane, which uses a biodegradable polymer so that uniaxially aligned first fibers and randomly aligned second fibers form a network; and a method for manufacturing the fiber membrane.
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WO/2021/207059A1 |
Filter media including out-of-plane solid elements are generally described. Inventive methods of forming them and uses thereof are also described.
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WO/2021/205500A1 |
A filter equipped with a filtering medium through which air passes and collectors which have a coarser mesh than does the filtering medium, wherein: the filtering medium has a pleated shape having first peaks and second peaks formed down...
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WO/2021/203494A1 |
A multifunctional electrostatic electret filter and a preparation method therefor. The filter is a sheet formed by interlacing a plurality of fibers (11). Each fiber (11) comprises a core portion (111) and a skin layer (112) which covers...
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WO/2021/206349A1 |
A composite nonwoven and an article comprising same are disclosed. The disclosed composite nonwoven comprises: a meltblown nonwoven layer that is at least partially charged; and a spunbond nonwoven layer that is at least partially hydrop...
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WO/2021/206348A1 |
Disclosed are a composite nonwoven fabric for an air filter, and an article comprising same. The disclosed composite nonwoven fabric for an air filter comprises: a first spunbonded nonwoven fabric layer; a meltblown nonwoven fabric layer...
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WO/2021/204729A1 |
The invention relates to a mask (10) comprising a main body (12) that has a filtering area (18), the filtering area (18) being adapted to cover the mouth and nostrils of a user, the filtering area (18) being a knitted fabric consisting o...
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WO/2021/206889A1 |
A filter element comprises one or more several tubular filter media element segments, which may be pleated filter media ring segments. One or more heat activated disks are used to connect each tubular filter media element segments togeth...
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WO/2021/203232A1 |
A method of making a porous structure configured for use in a particulate filter includes bonding a plurality of glass bubbles to one another, and breaching the plurality of glass bubbles. Voids within individual breached glass bubbles o...
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WO/2021/206358A1 |
Disclosed are a composite nonwoven fabric and an article including same. The disclosed composite nonwoven fabric comprises: a first spun-bonded nonwoven fabric layer; a melt-blown nonwoven fabric layer; and a second spun-bonded nonwoven ...
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WO/2021/206220A1 |
The present invention pertains to an antibacterial filter for a mask. According to an embodiment of the present invention, graphene and silver nanoparticles are selected as antibacterial agents, a polymer fiber is impregnated with a grap...
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WO/2021/206313A1 |
Disclosed are composite non-woven fabric and a product comprising same. The disclosed composite non-woven fabric comprises: an at least partially charged melt blown non-woven fabric layer; and an at least partially charged spunbond non-w...
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WO/2021/206317A1 |
Provided are a sub-micron fibrous membrane in which sub-micron fibers aligned along one axis and sub-micron fibers in a random pattern form a network, and a method for producing the sub-micron fibrous membrane.
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WO/2021/199013A1 |
It forms an object of the present invention a soft gel capsule containing volatile substances and / or essential oils, which is a gelatine capsule, wherein said capsule has a lenticular shape, with a diameter of length equal to or less t...
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WO/2021/203068A1 |
This disclosure describes filter media and mask filters and face mask systems including those filter media. In one aspect, the filter media includes a fibrous media including multi- component binder fibers, glass fibers, and microfibrill...
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