Filter media including a filtration layer comprising fibers (e.g., synthetic fibers) comprising a flame retardant and related components, systems, and methods associated herewith are provided. In some embodiments, a filtration layer may include a nonwoven web (e.g., wet-laid nonwoven web) comprising fibers including a certain flame retardant that has a relatively low concentration of or is substantially free of certain undesirable and/or toxic components (e.g., halogens). In certain embodiments, the nonwoven web may also comprise a blend of fibers. For instance, in some embodiments, the nonwoven web may also comprise a blend of coarse and fine diameter synthetic fibers that impart beneficial performance properties to the filtration layer. In some embodiments, the filtration layer may be designed to have a desirable flame retardancy (e.g., F1 rating, K1 rating) and performance properties without compromising certain mechanical properties (e.g., pleatability of the media) and/or environmental attributes (e.g., relatively low toxicity). Filter media described herein may be particularly well-suited for applications that involve filtering air, though the media may also be used in other applications.

A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 pm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 pm such that the geometric standard deviation of fiber diameter is less than 2.

A sediment filter system includes a series of segment layers each having a fibrous layer sandwiched between outer layers, wherein each of the series of segment layers includes different ratios of the material comprising the fibrous layer as compared to the material comprising the outer layers. The fibrous layer comprises a low-density material relative to the outer layers. The segment layers with higher compositions of outer layers include additional sheets of outer layers thereby decreasing the range of pore sizes.

A filter assembly includes an inlet end, a sediment filter having a sediment filter surface facing the inlet end and cylindrical filters. The sediment filter surface is orthogonal to each cylindrical filter surface. A first channel and a second channel may fluidly connect the sediment filter to the more cylindrical filters. The first channel can have a central axis that is orthogonal to a central axis to the more than one cylindrical filter. A central axis of the second channel may be in a direction along the length of the more than one cylindrical filter.

A filter assembly includes an inlet end, a sediment filter having a sediment filter surface facing the inlet end and cylindrical filters. The sediment filter surface is orthogonal to each cylindrical filter surface. A first channel and a second channel may fluidly connect the sediment filter to the more cylindrical filters. The first channel can have a central axis that is orthogonal to a central axis to the more than one cylindrical filter. A central axis of the second channel may be in a direction along the length of the more than one cylindrical filter.

The disclosed spinning nozzle member for manufacturing a cylindrical cartridge carbon filter comprises a nozzle body, a synthetic resin spinning part, a flowing air providing part, and a carbon spinning part, thereby enabling the cylindrical cartridge carbon filter to be continuously produced since a separate operation for filling a space between a core and an outer cover with carbon after the core and the outer cover are separately formed is not required.

A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices.

The purpose of the present invention is to provide a liquid permeable body comprising a porous composite that has different liquid permeabilities between in the in-plane direction and in the out-of-plane direction as well as excellent mechanical properties. The liquid permeable body comprises a porous composite having a structure in which discontinuous reinforcing fibers are dispersed; the dispersed discontinuous reinforcing fibers are bonded with a thermoplastic resin at at least an intersection thereof; voids of continuous openings form a void content of from 30 to 90%; an average value of fiber orientation angles is from 0 to 40 in an in-plane direction of the discontinuous reinforcing fibers; and an average value of fiber orientation angles is from 0 to 25 in an out-of-plane direction of the discontinuous reinforcing fibers.

A manufacturing method of a honeycomb structure includes a forming step of preparing a forming raw material containing a cordierite forming material and an inorganic binder, and kneading and forming the prepared forming raw material to have a honeycomb shape; and a firing step of firing the prepared formed body. In the forming step, as the inorganic binder, smectite is used in which at least parts of interlayer metal cations are ion-exchanged with non-metal cations. In the smectite, a total amount of sodium to be contained in the smectite is 1.6 mass % or less in terms of oxides to 100 mass % of the smectite. A content ratio of the smectite in the forming raw material is 0.5 parts by mass or more and 4.0 parts by mass or less to 100 parts by mass of the cordierite forming material.

Various embodiments include a continuous manufacturing method for producing a non-reinforced electrochemical cell component for an electrochemical conversion process, the method comprising: forming a web-form from a web-material suspension directly on a surface of a conveyor belt of a conveyor mechanism, wherein the web-material suspension comprises interconnecting entities suspended in a solution, the solution including an organic polymer binding material as a solute and a solvent for the solute, and a pore-forming material; advancing the web-form through a first non-solvent bath, wherein the first non-solvent bath comprises a first non-solvent configured to introduce a phase inversion in the web-form to form a web; detaching the web from the surface of the conveyor belt; advancing the web through a pore-forming bath to form the component; and collecting the component.