Abstract: Embodiments of the present disclosure generally relate to coated substrates having, e.g., anti-viral properties, to articles including the coated substrates, and to processes for making such coated substrates and articles. In an embodiment, a coated substrate is provided. The coated substrate includes a substrate having a weight of about 120 g/m2 or less according to ASTM D3776, mineral oxide particles, iron oxide particles, or both, coupled to at least a portion of the substrate wherein the coated substrate has a breathing resistance (95 L/min, EN 149:2001) of about 6 mbar or less.
Type:
Grant
Filed:
May 7, 2021
Date of Patent:
March 19, 2024
Assignee:
FXI INC. LIMITED
Inventors:
Andrew R. Barron, Iain Powner, Wafaa Al-Shatty, Donald A. Hill, Sajad Kiani, Andrius Stanulis, Lee Tretheway, Shirin Alexander, Steve Winston
Abstract: Embodiments of the present disclosure generally relate to coated substrates having, e.g., anti-viral properties, to articles including the coated substrates, and to processes for making such coated substrates and articles. In an embodiment, a mask for preventing infection by a virus is provided. The mask includes a coated substrate having a breathing resistance (95 L/min, EN 149:2001) of about 6 mbar or less and a water droplet absorption time of less than about 5 seconds. The coated substrate includes a non-woven fabric having a weight of about 120 g/m2 or less according to ASTM D3776, and mineral oxide particles, iron oxide particles, or both, coupled to at least a portion of the non-woven fabric.
Type:
Grant
Filed:
June 1, 2021
Date of Patent:
June 20, 2023
Assignee:
FXI INC. LIMITED
Inventors:
Andrew R. Barron, Iain Powner, Wafaa Al-Shatty, Donald A. Hill, Sajad Kiani, Andrius Stanulis, Lee Tretheway, Shirin Alexander, Steve Winston
Abstract: Embodiments of the present disclosure generally relate to processes for converting disulfides to conversion products and to processes for producing cysteic acid. In an embodiment, a process for converting cystine to a conversion product is provided. The process include introducing an organic peroxide and water to cystine to form a mixture. The process further includes reacting the mixture, under conversion conditions, to form the conversion product, wherein the conversion product comprises cysteic acid, an amount of cysteic acid in the conversion product is greater than about 90 wt % based on a total weight of the conversion product, and the conversion conditions comprise a conversion temperature from about 15° C. to about 50° C. The process further includes heating the conversion product to remove the organic peroxide.