Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.

A flame trap filter including a grid structure, wherein the grid structure determines grid openings which are bordered by intersecting strip sections, and/or wherein the grid structure is formed by a laid scrim. A method for producing a grid structure of a flame trap filter includes the step of allowing a substance to solidify on a substrate, in order to form at least one strip section of the grid structure. Alternatively or in addition, the method includes the step of compressing a material for the flame trap filter or a semi-finished product of the flame trap filter at points, e.g. by mechanically deforming the material or the semi-finished product, in order to form at least one strip section of the grid structure.

An inflator for generating inflation gases for a safety device includes a filter having a main body portion constructed of metal and an opening passing through the main body portion in an axial direction. The opening has a first end with a first diameter at a first axial side of the main body portion and a second end with a greater, second diameter at a second axial side of the main body portion. A plate disposed in the housing axially separates a filter chamber containing the filter and a combustion chamber containing at least one gas generant material. The plate includes a weakened zone which opens in response to an increase in pressure within the combustion chamber with a plurality of petals axially extending into the filter chamber. A first axially extending portion of the filter is adjacent the plate and opposes radial movement of the plurality of petals upon opening of the weakened zone into the filter chamber.

Disclosed herein is a molecular imprinted air filter for removing, detecting and/or reporting specific agents and/or molecules and comprising one or more air-permeable layers of molecular imprinted material positioned to contact molecules and/or agents in an airborne, and/or microdroplet-borne environment, a bioactive molecular imprint of a molecule that captures a specific airborne, fluid borne, and/or microdroplet-borne molecule, particle, or agent, and an electronic enhancement.

The present disclosure relates to a filter for a smoking device, such as, but not limited to, a water pipe. The filter includes a body that is positionable over a mouthpiece of the smoking device, to filter impurities from smoke drawn therethrough, and a base that secures the body over the mouthpiece such that smoke is drawn therethrough, prior to inhalation by a user. The body can include one of more filtration layers, such as a first layer formed from a material selected to filter carcinogens and other impurities from the smoke prior to inhalation, and a second layer formed from a material selected to minimize or prevent the transmission of bacteria, viruses, or other contagions from a user's mouth to the smoking device. Each of the filtration layers can also be formed from one or more materials.

Internally reinforced aerogels, articles of manufacture and uses thereof are described. An internally reinforced aerogel includes an aerogel having a support at least partially penetrating the aerogel and having the aerogel penetrating the porous structure of the support.

The present invention relates to high performance air filters made of a woven fabric and nanofiber filaments. An air filter, comprising a frame assembly (10), a filter assembly (11) attached to the frame assembly (10). The filter assembly (11) further comprises a woven filtering fabric (1) disposed within the frame assembly (10) and comprising calibrated woven strands, and a layer of nanofiber filaments (2) disposed on one side of the woven filtering fabric (1) forming a web of the nanofiber filaments (2) an open area between the strands of the woven filtering fabric (1).

To provide a filament for obtaining a palatable beverage extracting filter having excellent formability, which is less expensive, and having excellent extractability.

A core-sheath type composite multifilament for a palatable beverage extracting filter, including a core component and a sheath component, the core component being a homopolyester having a melting point of 220° C. or more, the sheath component being a copolyester containing terephthalic acid and a diol as major components and having a melting point at least 40° C. lower than that of the core component, and a number of filaments is 2 to 5.

An EM filter for an EGR cooler includes a gasket and a mesh filter including a horizontal wire and a vertical wire that are metal wires, wherein the horizontal wire and the vertical wire form a twill weave structure, and wherein a wire diameter of the horizontal wire with respect to a wire diameter of the vertical wire is greater than 1 and less than or equal to 1.3.

Disclosed herein are washable, reusable, antimicrobial and antiviral face masks and methods of their use for the reduction of transmission of infectious pathogens. Exemplary face masks are made of silver-coated material wherein activation of the silver from moisture in a user's breath kills pathogens. The disclosed face masks are useful in reducing, inhibiting or killing pathogens, such as SARS-CoV-2, that contact the face mask within 2 hours of continuous contact.