	US 12,215,225 B2
	Antimicrobial polymer resins, fibers, and yarns with phosphorus content
Scott E. Osborn, Houston, TX (US); and Wai-shing Yung, Houston, TX (US)
Assigned to Ascend Performance Materials Operations LLC, Houston, TX (US)
Filed by Ascend Performance Materials Operations LLC, Houston, TX (US)
Filed on Nov. 2, 2022, as Appl. No. 17/979,161.
Application 17/979,161 is a continuation of application No. 16/509,896, filed on Jul. 12, 2019, granted, now 11,505,701.
Claims priority of provisional application 62/697,786, filed on Jul. 13, 2018.
Prior Publication US 2023/0065257 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 77/02 (2006.01); C08K 3/02 (2006.01); C08K 3/08 (2006.01); D01D 5/00 (2006.01); D01F 1/10 (2006.01); D01F 6/90 (2006.01); D01F 9/08 (2006.01); D06M 101/34 (2006.01)

CPC C08L 77/02 (2013.01) [C08K 3/08 (2013.01); D01D 5/0023 (2013.01); D01F 1/103 (2013.01); D01F 6/90 (2013.01); D01F 9/08 (2013.01); C08K 2003/026 (2013.01); C08K 2003/0893 (2013.01); C08L 2203/12 (2013.01); D06M 2101/34 (2013.01)]

18 Claims

1. A polyamide resin composition for molded products having permanent antimicrobial properties, the polyamide composition comprising: a polyamide selected from the group consisting of PA-4T/41, PA-4T/6I, PA-5T/5I, PA-6, PA-6,6, PA-6,6/6, PA-6,6/6T, PA-6T/61, PA-6T/61/6, PA-61T/6, PA-6T/61/66, PA-6T/MPMDT, PA-6T/66, PA-61/610, PA-10T/612, PA-10T/106, PA-61T/612, PA-61/10T, PA-61/101, PA-9T, PA-10T, PA-12T, PA-10T/101, PA-10T/12, PA-10T/11, PA-6T/9T, PA-61/12T, PA-61/10T/6I, PA-6T/61/6, PA-6T/6I/12, and combinations thereof;

molding additives comprising impact modifiers, heat stabilizers, lubricants, fillers, chain terminators, or plasticizers, or combinations thereof;

zinc dispersed within the polyamide;

less than 1000 ppm of phosphorus;

wherein the weight ratio of the zinc to the phosphorus is 2:1 to 30:1.