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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.
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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.
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公开(公告)号：US11965275B2
公开(公告)日：2024-04-23
申请号：US17388544
申请日：2021-07-29
Applicant: Ascend Performance Materials Operations LLC
Inventor： Wai-Shing Yung , Chris Schwier , Albert Ortega , Scott E. Osborn
CPC classification number: D04H3/16 , D01D5/096 , D04H3/009 , B29C2948/92514 , B29C2948/92704 , B29C2948/92723 , D01D5/0985 , D10B2331/02
Abstract: A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.
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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
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.
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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).
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Patent Agency Ranking
公开(公告)号：US20240074438A1
公开(公告)日：2024-03-07
申请号：US18451411
申请日：2023-08-17
Applicant: Ascend Performance Materials Operations LLC
Inventor： Scott E. Osborn , Wai-shing Yung , Albert Ortega
CPC classification number: A01N57/00 , A01N59/16 , D01D5/0985 , D01F8/12 , D04H1/4334 , D04H3/009 , D10B2331/02 , D10B2401/13 , Y10T442/607
Abstract: 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 Staphylococcus aureus reduction of at least 90%, as measured by ISO 20743-13.
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公开(公告)号：US11758909B2
公开(公告)日：2023-09-19
申请号：US16719308
申请日：2019-12-18
Applicant: Ascend Performance Materials Operations LLC
Inventor： Scott E. Osborn , Wai-shing Yung , Albert Ortega
CPC classification number: A01N57/00 , A01N59/16 , D01D5/0985 , D01F8/12 , D04H1/4334 , D04H3/009 , D10B2331/02 , D10B2401/13 , Y10T442/607
Abstract: 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 Staphylococcus Aureus reduction of at least 90%, as measured by ISO 20743-13.
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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.
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公开(公告)号：US20240035214A1
公开(公告)日：2024-02-01
申请号：US18359239
申请日：2023-07-26
Applicant: Ascend Performance Materials Operations LLC
Inventor： Keh Dema , Kevin Urman , Albert Ortega
IPC: D04H13/00
CPC classification number: D04H13/001 , D10B2401/13 , D10B2321/022 , D10B2331/02
Abstract: An AM/AV fabric, comprising base fibers comprising a base polymer composition comprising a base polymer; and short AM/AV fibers comprising an AM/AV polymer composition comprising an AM/AV polymer and an AM/AV compound. The fabric has a charge and demonstrates a particle efficiency greater than 20% when measured in accordance with TSI 8130A test system at 10.5 ft/min face velocity, and a Klebsiella pneumoniae efficacy log reduction greater than 1.5, as measured in accordance with ASTM E3160 (2018).
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公开(公告)号：US20230193516A1
公开(公告)日：2023-06-22
申请号：US18066753
申请日：2022-12-15
Applicant: Ascend Performance Materials Operations LLC
Inventor： Albert Ortega , Kevin Urman , Ryan Hensarling
CPC classification number: D01F1/103 , D01F6/06 , D01F6/60 , D10B2321/022 , D10B2331/02 , D10B2401/13
Abstract: An AM/AV fabric comprising base fibers comprising a base polymer composition and AM/AV fibers comprising an AM/AV polymer composition comprising an AM/AV polymer and an AM/AV compound. The base fibers and the AM/AV fibers are intermingled with one another; and the fabric demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particle filtration efficiency greater than 35%.
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