| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210503000 | Diverse granular or fibrous | 41 |
| 20080314821 | FILTER MEDIUM, FLUID FILTER, AND ENGINE OIL FILTER - A filter medium comprises a modified cross-section fiber (A) having a fiber diameter between 40 and 70 μm, an extremely fine fiber (B) having a fiber diameter of more than 5 μm and no more than 10 μm and a modified cross-section fiber (C) having a fiber diameter between 15 and 30 μm, the content of the extremely fine fiber (B) is between 3 and 10% by mass, and the content of the modified cross-section fiber (C) is between 5 and 15% by mass based on 100% by mass of total the fibers in the filter medium. | 12-25-2008 |
| 20110155661 | WATER FILTER MATERIALS AND WATER FILTERS CONTAINING A MIXTURE OF MICROPOROUS AND MESOPOROUS CARBON PARTICLES - A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided. | 06-30-2011 |
| 20120012522 | MAKING AND USING COMPOSITE MATERIAL CONTAINING NANOSPHERES AND DEVICES FOR WATER FILTRATION AND DEVICES CONTAING SUCH COMPOSITES - The present invention relates to the method of producing concentric carbon nanospheres from the pyrolytic combustion of a carbonaceous material such as plant material. The material can be carboxylated and then optionally metallated to produce nanospheres capable of filtering a liquid such as water. | 01-19-2012 |
| 20120168371 | Water filter cartridge and method of manufacturing same - A filter cartridge and method of manufacturing same is provided. The filter cartridge of a drinking water filter includes a plurality of nanometer sized grains each comprising a core including a granulated mixture, ceramic soil surrounding the mixture, and a plurality of holes formed within the ceramic soil and on a surface thereof wherein the mixture includes tourmaline powder, mica powder, mineral powder, germanite powder, calcite powder, amber powder, agate powder, actinolite powder, crystal powder, and jade powder; and a nanometer sized silver layer coated on the core. The silver layer includes a plurality of through holes. | 07-05-2012 |
| 210504000 | With adhered coating or impregnant | 12 |
| 20100133173 | WET TYPE NONWOVEN FABRIC AND FILTER - The present invention is a wet type nonwoven fabric that includes two or more kinds of fibers, wherein the wet type nonwoven fabric includes a short fiber A that is constituted of a fiber-forming thermoplastic polymer and has a fiber diameter D of from 100 to 1000 nm and the ratio of a fiber length L to the fiber diameter D, L/D, in the range of from 100 to 2500 in from 4 to 50% by weight relative to the total weight of the nonwoven fabric, and a binder fiber B that has a single fiber fineness of 0.1 dtex or less in from 10 to 50% by weight relative to the total weight of the nonwoven fabric. | 06-03-2010 |
| 20110192789 | METAL OR METAL OXIDE DEPOSITED FIBROUS MATERIALS - A method for electrospraying nanosized metal or metal oxide particles onto a substrate. A metal oxide deposited fibrous material comprising a substrate, fibers and metal oxide particles may be made using the method. The material may be a flexible and porous fibrous matrix on which metal oxide particles may be uniformly deposited on a surface thereof. In an exemplary embodiment, the invention is directed to an electrospun nanofibrous material on which electrosprayed photocatalytic metal oxide particles are uniformly deposited without agglomeration. | 08-11-2011 |
| 20110253622 | METHOD AND SYSTEM OF INDELIBLY MARKING CELLULOSE, PAPER, TEXTILES AND OTHER WOVEN AND NON-WOVEN FIBER MATERIALS - The present invention provides a convenient and cost effective method of imprinting both text and images on certain filter materials such as those used in automatic coffee makers or as envelopes for the steeping of tea. The imprint must therefore be indelible, water resistant, non-toxic, temperature-resistant within the parameters of the application and the image reproduction must be crisp and permanent. Although the above-mentioned application is specific, it must be understood that the technology described herein includes, but is not limited to, the imprinting of filter paper and may be applied wherever indelible marking of certain appropriate substrates may be desired. The following describes both a method and system for indelibly marking a fabric, paper or any other fibrous material without the use of a pigmented liquid or thin-film transfer. | 10-20-2011 |
| 20120152824 | FINE FIBER FILTER MEDIA AND PROCESSES - Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications. | 06-21-2012 |
| 20120248034 | METHODS OF MAKING AND USING LIQUID FILTER MEDIA - Filtration media for filtering a liquid includes a plurality of fibers having a coating thereon of a fluorine containing compound. Also disclosed are processes for forming fibrous non-woven liquid filtration media having the coating of the fluorine containing compound. Suitable fluorine containing compounds generally include fluoropolymers, fluorinated hydrocarbons, fluoroacrylate polymers, and the like. The liquid filtration media having the coating of the fluorine containing compound provides markedly improved dirt holding capacity and efficiency properties, among others. | 10-04-2012 |
| 20120273410 | Metal Semi-Finished Product - A semi-finished product is disclosed including fibrous materials, binders, 15 to 90% by volume metal fillers, and 0 to 15% by volume non-metal inorganic fillers. The total content of the fillers is not more than 90% by volume of the semi-finished product. The invention further relates to metal materials and processes for manufacturing the materials and semi-finished products and uses thereof. | 11-01-2012 |
| 20130068687 | FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION - A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. | 03-21-2013 |
| 20130299418 | METHOD OF FORMING FILTER ELEMENTS - A method of forming a filter element is disclosed comprising introducing a mixture into a feeder, the mixture comprising a plurality of susceptor particles and a plurality of polymeric binder particles. The mixture is advanced through the feeder and into a die comprising an excitation portion where eddy currents are induced in the susceptor particles by subjecting the mixture to a high-frequency electromagnetic field, the eddy currents being sufficient to elevate the temperature of the susceptor particles to cause adjacent polymeric binder particles to be heated to at least a softening point. The susceptor particles bind with the heated polymeric binder particles in the die to form a coherent mass. The coherent mass is advanced out of the die and cooled to form the filter element. | 11-14-2013 |
| 20130306552 | METHOD OF FORMING FILTER ELEMENTS - A method of forming a filter element is disclosed comprising introducing a mixture into a mold, the mixture comprising a plurality of susceptor particles and a plurality of polymeric binder particles. Eddy currents are induced in the susceptor particles by subjecting the mixture to a high-frequency electromagnetic field, the eddy currents being sufficient to elevate the temperature of the susceptor particles to cause adjacent polymeric binder particles to be heated to at least a softening point. The susceptor particles bind with the heated polymeric binder particles in the mold to form a coherent mass. The coherent mass is cooled to form the filter element. | 11-21-2013 |
| 20140263037 | FILTRATION MEDIA - A filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 60% to 75% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when wound into a roll and to permit further processing without the media becoming too brittle. The filtration media comprises a blend of cellulose and synthetic fibers having a basis weight of 81% to 87% of a basis weight of the media and a resin binder having a basis weight of 13% to 19% (preferably about 16%) of the basis weight of the media. | 09-18-2014 |
| 20150129490 | Low Soluble Iron Diatomite Filter Aids - Processes for manufacturing low soluble iron diatomite filter aids and such filter aids are disclosed. Aluminum oxide and/or aluminum hydroxide are used as additives when preparing the flux-calcined diatomite filter aids. As compared to either straight-calcined or soda ash flux-calcined diatomite filter aids of similar permeabilities made from the same ore, the disclosed filter aids have lower soluble iron levels. For instance, disclosed filter aids of about 0.5 to about 2.0 Darcy were made using either an aluminum oxide or aluminum hydroxide additive with soda ash. The disclosed filter aids may have an EBC soluble iron content of less than 80 ppm versus 130 ppm for similar filter aids that were made from the same ore and flux-calcined with just soda ash. | 05-14-2015 |
| 20160166961 | Gradient Nanofiber Filter Media | 06-16-2016 |
| 210505000 | Including fibers | 25 |
| 20080217241 | COMPOSITE FILTER MEDIA AND METHODS OF MANUFACTURE - A composite filter media structure is provided. In an exemplary embodiment, the composite filter media structure includes a corrugated base substrate that includes a nonwoven synthetic fabric formed by a dry-laid process that corrugates the base substrate during the forming process. The composite filter media structure also includes a nanofiber membrane deposited on at least one side of the base substrate by an electro-blown spinning process. | 09-11-2008 |
| 20080230471 | FUNCTIONAL FILTER MEDIUM - This invention relates to functional nonwoven filter media provided by radiation-induced graft copolymerization and its production method. Meltblown type of nonwoven (Meltblown) comprised of fine fibers, less than 8 micron in diameter, of polyolefin or polyamide is chosen as the suitable grafting trunk polymer. The production methods are composed of following steps, 1) irradiation less than 30 kGy dose to the Meltblown with electron beam or gamma ray; 2) graft copolymerization of emulsified vinyl monomer onto the Meltblown; and 3) chemical conversion of ion exchange group onto the grafted vinyl monomer. These steps are independently conducted in their suitable operation conditions. | 09-25-2008 |
| 20090145842 | MICROPULP FOR FILTERS - A filter made from a blend of a polymeric fibrous pulp having a length weighted average fiber length between 0.5 and 1.1 mm and a polymeric fibrous micropulp having a volume weighted average fiber length between 1.0-200.0 micrometers in which the ratio of average fiber length of the fibrous pulp to fibrous micropulp is greater than or equal to about 4:1. | 06-11-2009 |
| 20090152191 | Nonwovens, Tufted Nonwovens, and Articles Containing the Same - A nonwoven is described comprising thermoplastic fibers with a fusion temperature T | 06-18-2009 |
| 20100006497 | EXPANDED PTFE MEMBRANE AND METHOD OF MAKING - A method of making a porous membrane includes, in an exemplary embodiment, mixing together a first fine powder PTFE resin and a second fine powder PTFE resin to form a PTFE resin mixture. The first PTFE resin having a characteristic of forming more and longer fibrils than fibrils formed from the second PTFE resin. The second PTFE resin having a characteristic of forming thicker nodes than nodes formed from the first PTFE resin. The method also includes forming a preform from the PTFE resin mixture, extruding the preform into a tape, passing the tape through a plurality of opposing calender rolls to form a calendered tape having a thickness of about 380 μm to about 1200 μm, and stretching the calendered tape in the transverse direction to form a porous membrane having a plurality of nodes and fibrils and having a thickness of at least about 100 μm. | 01-14-2010 |
| 20100084336 | Dechlorinating Chitosan Fibers and Method for Manufacturing the Same - A method for manufacturing a dechlorinating chitosan fiber is provided. The method includes preparing a spinning solution and performing wet spinning with the spinning solution. The spinning solution is prepared by dispersing calcium sulfite and chitosan or derivates thereof in a solvent, wherein when the solvent is 100 parts by weight, the chitosan or derivates thereof is about 3-5 parts by weight and the calcium sulfite is about 3-5 parts by weight. | 04-08-2010 |
| 20100237006 | Filter and method of manufacture - A filter comprises a pad ( | 09-23-2010 |
| 20120006741 | Filter Material Web - A fiber material web of pulp fibers is made by pulp fibers being calendered and spot-connected or linearly connected without a binder in pressurized areas by fusion of the fiber bodies with generation of an embossed patter. The pulp fibers are chemically treated pulp fibers. The fiber material web is suitable for use in sanitary articles and as a filter material. | 01-12-2012 |
| 20120067814 | MULTI-PHASE FILTER MEDIUM - Multi-phase filter media, as well as related articles, components, filter elements, and methods, are disclosed. | 03-22-2012 |
| 20120312738 | FILTER MEDIUM AND BREATHER FILTER STRUCTURE - Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications. | 12-13-2012 |
| 20130075326 | FILTER FABRICATION METHOD AND THE FILTER FORMED THEREBY - Provided are a filter fabrication method and the filter formed thereby. In this method, a three-dimensional graphene polymer complex filter can be easily fabricated. By forming various patterns at a surface of a collector, patterns can be simply formed at a surface of a filter. This provides advantages at control of pressure difference which can be one of the very important factors necessary for designing and fabricating a filter. Since the filter includes graphene particles homogeneously combined to the polymer nanofiber, the filter can represent a superior antibiosis. | 03-28-2013 |
| 20130134088 | BICOMPONENT FIBER - The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy. | 05-30-2013 |
| 20130206683 | Method for Producing a Polyamide Nanofiber Product by Electrospinning, Polyamide Nanofiber Product, a Filter Medium with Polyamide Nanofiber Product, as well as a Filter Element with such a Filter Medium - In a method for producing a polyamide nanofiber product that contains PTFE particles, a spinning solution containing polyamide, PTFE, and a conductivity-increasing additive is provided and nanofibers are produced by electrospinning from the spinning solution. The conductivity-increasing additive is an acid-resistant additive; a surfactant additive; or an acid-resistant and surfactant additive and contains one or more organic salts. The polyamide nanofiber product with PTFE particles is used in filter media and is especially applied to a filter layer of cellulose or synthetic material. | 08-15-2013 |
| 20130264276 | Filter Media Treated with Cationic Fluorinated Ether Silane Compositions - Filter media is treated with a composition comprising cationic fluorinated ether silanes to provide durable water- and/or oil-repellency properties. | 10-10-2013 |
| 20140076797 | FIBER-BASED FILTER WITH NANONET LAYER AND PREPARATION METHOD THEREOF - A fiber-based filter includes a filter-based porous body having a most frequent pore size from 0.1 μm to 2 μm in a pore size distribution, in which a ultra-fine fiber is continuously and randomly disposed, and a filtration layer having a nanonet layer having a most frequent pore size from 1 nm to 100 nm in the pore size distribution, in which an anisotropic nanomaterial is disposed. The fiber-based filter may have excellent filtration efficiency capable of removing even super-fine particles such as virus and heavy metal, and may show high permeation flow rate due to low loss of pressure during the filtration, and may be usefully used as an air and water-treatment filter. | 03-20-2014 |
| 20140091033 | CARBON FIBER MATERIAL, CARBON FIBER MATERIAL MANUFACTURING METHOD, AND MATERIAL CONTAINING THE CARBON FIBER MATERIAL - The object of the present invention is to provide carbon fiber material having high electrical conductivity at a low cost. A manufacturing method of carbon fiber material comprises a dispersion liquid preparation step, a centrifugal spinning step and a denaturation step. The dispersion liquid preparation step is a step in which dispersion liquid containing resin and carbon particles is prepared. The centrifugal spinning step is a step in which nonwoven fabric made of a carbon fiber precursor is formed from the dispersion liquid. The denaturation step is a step in which the carbon fiber precursor denatures into carbon fiber. | 04-03-2014 |
| 20140305864 | INORGANIC FIBROUS MEMBRANE AND A METHOD OF FABRICATING THEREOF - A method of fabricating an inorganic fibrous membrane, the method comprising the steps of: grafting sulfonated graphene oxide onto a scaffold of inorganic nanofibers to form a suspension of heterojunctions of the sulfonated graphene oxide and the scaffold; filtering the suspension through a support to obtain heterojunctions on the support; drying the heterojunctions on the support; and removing the support to obtain the inorganic fibrous membrane. | 10-16-2014 |
| 20140326661 | LIQUID FILTRATION MEDIA CONTAINING MELT-BLOWN FIBERS - A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber, such as melt blown polyester; and a scaffold fiber, also such as such as melt blown polyester, having a larger diameter than the media fiber. The media and scaffold fibers combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products. | 11-06-2014 |
| 20140346107 | Filter Media Including Polymer Compositions and Blends - Polymer compositions that may be used to form fibers for a fiber web are generally described. In some embodiments, certain properties of the polymer compositions (e.g., molecular weight distribution, melt flow index, melt elasticity, and/or melt toughness) may allow the formation of fiber webs having fine fibers and a relatively low amount of process defects. In some instances, these properties of the polymer composition may be achieved by combining two or more polymer components. Fiber webs formed using the polymer composition may have increased performance and/or better structural characteristics compared to fibers webs formed using a single polymer component. | 11-27-2014 |
| 20150321124 | FILTER MEDIA WITH FIBRILLATED FIBERS - Filter media suitable for various applications (e.g., hydraulic) and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture of glass fibers and fibers that are fibrillated. The fibrillated fibers, for example, may be formed of lyocell. | 11-12-2015 |
| 20150360159 | Blended Fiber Filters - A filter comprising a nonwoven blend of fibers is shown, where the nonwoven blend of fibers comprises a bi-component fiber bonded to a mono-component fiber. The bi-component fiber comprises a core and a sheath. The sheath and the core have different melting points, with the sheath melting point being lower than the core melting point. The mono-component fiber has a shaped cross-section. | 12-17-2015 |
| 20150375149 | ACETATE TOW AND FILTERS WITH SHAPE AND SIZE USED FOR CODING - Disclosed are acetate tow bands comprising identification fibers which can be used for tracking and tracing the acetate tow band through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identification fibers can exhibit a taggant cross-section shape, a taggant cross-section size, or combination of the same taggant cross-section shape and same taggant cross-section size. The distinct features and the number of fibers in each group of distinguishable identification fibers can represent at least one supply chain component of the acetate tow band, including the manufacturer of the acetate tow band and the customer of the acetate tow band. The distinct features are detectable in a filter comprising the acetate tow band. | 12-31-2015 |
| 20160051919 | MULTI-LAYERED FILTER MEDIA - Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media. | 02-25-2016 |
| 20160144308 | FILTER MEDIA AND METHODS OF MANUFACTURING THEREOF - Filtration media includes a layer of nonwoven fibrous material [ | 05-26-2016 |
| 20160375384 | FILTER MEDIA AND METHODS OF PRODUCING THE SAME AND USES THEREOF - Filter media comprising a splittable multicomponent fiber, wherein at least a portion of the splittable multicomponent fiber is present in the filter medium in split form as at least a first split component and a second split component, and a monocomponent fiber are provided herein. Methods of preparing the filter media are also provided herein. | 12-29-2016 |
