Mativ has been granted a patent for an electrolyte film designed for applications like electrochromic windows. The film features a polymer layer containing an electrolyte made of salt and plasticizer, optimized for conductivity and optical transparency, crucial for smart window functionality. 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 June 2024 was 43%. Grant share is based on the ratio of number of grants to total number of patents.
Electrolyte films for smart windows with optical clarity
The granted patent US12032260B2 outlines a novel electrolyte film designed for use in electrochromic cells, characterized by a polymer layer that incorporates an electrolyte composed of a salt and a plasticizer. Key features of the film include a roughness average (Ra) between the plasticizer and the polymer layer of less than 3.79, an ionic conductivity of at least 3.85×10-5 Siemens/cm, and a haze measurement of about 2% or less, as per ASTM D1003-13 standards. The electrolyte can be in a liquid or gel form, with the plasticizer typically being a mixture of propylene carbonate and diethyl carbonate, where propylene carbonate constitutes 50% to 85% of the mixture. The patent also specifies various organic carbonates and additional materials that can be used in the plasticizer formulation.
In addition to the electrolyte film, the patent describes an electrochromic cell that integrates this film between two layers of optically transparent material. The ion conductive layer of the cell maintains the same specifications as the electrolyte film, ensuring low haze and high ionic conductivity. The electrochromic cell can be incorporated into windows, offering a switching speed of less than one minute and a transmittance of at least 80%. This innovation presents potential applications in smart windows and other electrochromic devices, enhancing their functionality and performance through improved material properties.
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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.
