Mativ. has filed a patent for a filter medium designed for air filtration. The medium includes a nonwoven electret made from specific polymer materials, ensuring high porosity levels. This innovation aims to enhance air filtration efficiency. GlobalData’s report on Mativ gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Mativ, Self-extinguishing cigarettes was a key innovation area identified from patents. Mativ's grant share as of January 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
The patent application (Publication Number: US20230398478A1) describes a filter medium comprising a nonwoven electret made from polymer fibers. The polymer material includes a thermoplastic resin, a charge adjuvant, and a nucleating agent, with the porosity of the nonwoven electret falling between =90% and =98%. The thermoplastic resin can be a polyolefin resin or a polyester resin, while the charge adjuvant is specified as a hindered amine, and the nucleating agent can be a clarifier or selected from various options like benzoate salt, sorbitol acetate, and others.
Furthermore, the filter medium may include additional layers of wet-laid or dry-laid nonwoven materials, such as polypropylene (PP) fibers, polyethylene terephthalate (PET) fibers, or PET/coPET bicomponent fibers. The air permeability of the filter medium is within the range of 20 to 3000 L/m2s, and the collection efficiency of the nonwoven electret is between 20% and 99.999995%. The patent also covers the use of this filter medium for air filtration purposes, including applications in air filter media, HVAC filters, cabin air filters, and face masks. Overall, the patent outlines a specialized filter medium design with specific compositions and properties aimed at efficient air filtration with high porosity and collection efficiency.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
