公开(公告)号：US20220054964A1

公开(公告)日：2022-02-24

申请号：US17408131

申请日：2021-08-20

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram GOPAL ,  Natasha DEAN ,  Albert ORTEGA ,  Wai-shing YUNG ,  Ping HAO

IPC: B01D46/00 ,  B01D39/16

Abstract: Provided herein are filter media structures having antimicrobial and/or antiviral properties. In particular, the present disclosure describes filter media structures having a first layer with an electret web and a second layer that demonstrates biological-reducing properties. In some cases, the first layer is formed from polypropylene (e.g., spunbond) and the second layer is formed from a plurality of fibers of a polyamide composition (e.g., meltblown).