公开(公告)号：US20200254371A1

公开(公告)日：2020-08-13

申请号：US16864769

申请日：2020-05-01

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-Shing Yung ,  Scott E. Osborn ,  Chris E. Schwier ,  Vikram Gopal ,  Albert Ortega ,  Joseph L. Menner

IPC: B01D39/16 ,  B32B5/02 ,  B32B5/26 ,  A62B23/02

Abstract: A filter comprising 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：US12043721B2

公开(公告)日：2024-07-23

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: C08K3/08 ,  A01N25/10 ,  A01N25/34 ,  A01N59/16 ,  A01N59/20 ,  A41D13/11 ,  B29C48/00 ,  B29K77/00 ,  B29K105/00 ,  C08K3/02 ,  C08L77/06 ,  D01F6/60 ,  D02G3/04 ,  D02G3/44

CPC classification number: C08K3/08 ,  A01N25/10 ,  A01N25/34 ,  A01N59/16 ,  A01N59/20 ,  A41D13/1192 ,  B29C48/022 ,  C08L77/06 ,  D01F6/60 ,  D02G3/047 ,  D02G3/448 ,  D02G3/449 ,  B29K2077/00 ,  B29K2105/0011 ,  B29K2995/0077 ,  B29K2995/0092 ,  C08K2003/026 ,  C08K2003/0893 ,  C08K2201/00 ,  C08L2201/02 ,  C08L2201/08 ,  C08L2203/12 ,  D10B2331/021 ,  D10B2401/02 ,  D10B2401/13

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).

公开(公告)号：US11618238B2

公开(公告)日：2023-04-04

申请号：US16845887

申请日：2020-04-10

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-Shing Yung ,  Albert E. Ortega ,  Joseph L. Menner ,  Vikram Gopal

IPC: B32B5/02 ,  D04H1/56 ,  B32B27/28 ,  B32B37/04 ,  B82Y30/00 ,  B82Y40/00

Abstract: Nonwoven multilayer structures having at least two nanofiber layers are described herein. The nonwoven multilayer structure may have two nanofibers layers that have different properties from each other, such as fiber diameter. One nanofiber layer may be produced by an electrospinning process, while another nanofiber layer may be produced by a melt blown process.

公开(公告)号：US11578438B2

公开(公告)日：2023-02-14

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 ,  B82Y40/00

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：US20240301112A1

公开(公告)日：2024-09-12

申请号：US18597016

申请日：2024-03-06

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-shing Yung ,  Vikram Gopal

IPC: C08F283/04 ,  C08K3/105

CPC classification number: C08F283/04 ,  C08K3/105

Abstract: This disclosure relates to a process for making flame retardant fibers comprising the steps of combining a flame retardant masterbatch with a polymer to form a polymer composition and forming the flame retardant fibers from the polymer composition. The masterbatch comprises greater than 10 wt % of a nitrogen compound having a melting point less than 400° C.; and a masterbatch polymer, with the weight percentages based on the total weight of the masterbatch. The flame retardant fibers pass the flame retardancy standards of ASTM D6413 (current year).

公开(公告)号：US20230088990A1

公开(公告)日：2023-03-23

申请号：US17946514

申请日：2022-09-16

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram Gopal ,  Dhruv Shah ,  Changizes Sadr ,  Austin Maples ,  Bradley Sparks

IPC: B65G15/38

Abstract: An antimicrobial conveyor belt apparatus comprising multiple segments each having a body portion and interlocking fingers extending from the body portion. The segments comprise a polymer composition 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. The conveyor belt apparatus (or the segments thereof) demonstrates a Staphylococcus aureus log reduction greater than 1.0, as determined via ISO 22196:2011.

公开(公告)号：US20220372681A1

公开(公告)日：2022-11-24

申请号：US17871167

申请日：2022-07-22

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：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：US11674247B2

公开(公告)日：2023-06-13

申请号：US17871167

申请日：2022-07-22

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 ,  B82Y40/00

CPC classification number: D04H1/4334 ,  D04H1/43838 ,  D04H1/552 ,  D04H1/56 ,  D04H1/565 ,  D04H3/016 ,  D04H3/16 ,  B82Y40/00

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：US11618810B2

公开(公告)日：2023-04-04

申请号：US17192533

申请日：2021-03-04

Applicant: Ascend Performance Materials Operations LLC

Inventor： Vikram Gopal ,  Wai-shing Yung ,  Albert Ortega

IPC: A01N25/34 ,  A01N25/10 ,  A01N59/20 ,  A01N59/16 ,  C08K3/08 ,  B29C48/00 ,  C08L77/06 ,  D01F6/60 ,  D02G3/04 ,  D02G3/44 ,  A41D13/11 ,  B29K77/00 ,  B29K105/00 ,  C08K3/02

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.