公开(公告)号：US20210262131A1

公开(公告)日：2021-08-26

申请号：US17318494

申请日：2021-05-12

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-shing YUNG ,  Scott E. Osborn ,  Chris E. Schwier ,  Vikram Gopal ,  Albert Ortega

IPC: D04H1/4334 ,  D04H3/016 ,  D04H1/56 ,  D04H3/16 ,  D04H1/4382 ,  D04H1/552

Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.

公开(公告)号：US20210277203A1

公开(公告)日：2021-09-09

申请号：US17192513

申请日：2021-03-04

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram GOPAL ,  Wai-shing YUNG ,  Albert ORTEGA ,  Bradley J. SPARKS ,  Joseph SURIANO ,  Austin MAPLES

IPC: C08K3/08 ,  C08L77/06 ,  B29C48/00

Abstract: A polymer composition for molded products having antimicrobial and/or antiviral properties comprising from 50 wt. % to 99.9 wt. % of a polymer, from 0.01 wt % to 10 wt % zinc, optionally from a zinc compound, less than 1 wt % of a phosphorus compound, and from 0 wt % to 20 wt % molding additives, wherein a molded product formed from the polymer composition demonstrates a Staphylococcus aureus log reduction greater than 1.0, as determined via ISO 22196:2011.

公开(公告)号：US20230242735A1

公开(公告)日：2023-08-03

申请号：US18194011

申请日：2023-03-31

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram GOPAL ,  Wai-shing YUNG ,  Albert ORTEGA

IPC: C08K3/08 ,  B29C48/00 ,  C08L77/06 ,  D01F6/60 ,  D02G3/04 ,  D02G3/44 ,  A01N25/10 ,  A01N25/34 ,  A01N59/16 ,  A01N59/20 ,  A41D13/11

CPC classification number: C08K3/08 ,  B29C48/022 ,  C08L77/06 ,  D01F6/60 ,  D02G3/047 ,  D02G3/448 ,  D02G3/449 ,  A01N25/10 ,  A01N25/34 ,  A01N59/16 ,  A01N59/20 ,  A41D13/1192 ,  B29K2077/00

Abstract: Provided is a textile made of filament yarn comprising a polymer composition that is durable and reusable having permanent or near-permanent antiviral properties and that includes a polymer, a metal ion, preferably a zinc and/or copper ion, and an optional phosphorus compound, wherein fibers and/or fabric formed from the polymer composition demonstrate antiviral properties and wherein the polymer is hygroscopic. The present disclosure also describes methods of forming the polymer compositions and methods of preparing fibers from the polymer composition.

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).

公开(公告)号：US20210322908A1

公开(公告)日：2021-10-21

申请号：US17235345

申请日：2021-04-20

Applicant: Ascend Performance Materials Operations LLC

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

IPC: B01D39/16 ,  A41D13/11 ,  B32B5/02 ,  B32B5/26 ,  A62B7/10 ,  A62B23/02

Abstract: A filter or mask structure, comprising a first face layer comprising a polymer and having a face basis weight, a second outer layer comprising a polymer and having an outer basis weight less than 34 gsm, and a third outer layer comprising a polymer and having a third basis weight and disposed between the first face layer and the second outer layer. At least one of the layers further comprises an AM/AV compound. The mask structure demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particulate filtration efficiency greater than 90%, as measured in accordance with ASTM F2299-03R17.

公开(公告)号：US20210277234A1

公开(公告)日：2021-09-09

申请号：US17192491

申请日：2021-03-04

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram GOPAL ,  Wai-shing YUNG ,  Albert ORTEGA

IPC: C08L77/06 ,  C08K3/08 ,  D01F6/60 ,  D02G3/04 ,  D02G3/44

Abstract: A polymer composition having antimicrobial properties, the composition comprising from 50 wt % to 99.99 wt % of a polymer, from 10 wppm to 900 wppm of zinc, less than 1000 wppm of phosphorus, and less than 10 wppm coupling agent and/or surfactant, wherein zinc is dispersed within the polymer; and wherein fibers formed from the polymer composition demonstrate a Klebsiella pneumonia log reduction greater than 0.90, as determined via ISO20743:2013 and/or an Escherichia coli log reduction greater than 1.5, as determined via ASTM E3160 (2018).