ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,539, issued on June 24, was assigned to Ascend Performance Materials Operations LLC (Houston).
"Antimicrobial nonwoven polyamides with zinc content" was invented by Scott E. Osborn (Houston), Wai-shing Yung (Houston) and Albert Ortega (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Sta...