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公开(公告)号：US11421359B2
公开(公告)日：2022-08-23
申请号：US16880015
申请日：2020-05-21
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：US20200283937A1
公开(公告)日：2020-09-10
申请号：US16880015
申请日：2020-05-21
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 , D04H1/4382 , D04H3/16 , 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：US12215225B2
公开(公告)日：2025-02-04
申请号：US17979161
申请日：2022-11-02
Applicant: Ascend Performance Materials Operations LLC
Inventor： Scott E. Osborn , Wai-shing Yung
Abstract: The present disclosure relates to polymer resins, fibers, and yarns with permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer resin comprises a polymer having less than 2500 ppm of zinc dispersed within the polymer, less than 1000 ppm of phosphorus, wherein the weight ratio of zinc to phosphorus is at least 1.3:1 or less than 0.64:1.
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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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公开(公告)号：US12041931B2
公开(公告)日：2024-07-23
申请号：US17514388
申请日：2021-10-29
Applicant: Ascend Performance Materials Operations LLC
Inventor： Scott E Osborn , Wai-shing Yung
Abstract: The present disclosure relates the polymer compositions, fibers, and yarns having near-permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer composition from 50 wt % to 99.9 wt % of a polymer, from 5 wppm to 1000 wppm of zinc, and from 0.005 wt % to 1 wt % of phosphorus, wherein fibers formed from the polymer composition demonstrate a zinc retention rate of greater than 20% when tested in a dye bath test.
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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：US20230175197A1
公开(公告)日：2023-06-08
申请号：US18061143
申请日：2022-12-02
Applicant: Ascend Performance Materials Operations LLC
Inventor： Victor G. Kholodkov , Wai-shing Yung
CPC classification number: D06M11/83 , D06M23/10 , D06M2101/16
Abstract: A wet treatment process, the process comprising: adding an article comprising a polymer and an initial zinc content to a wash solution comprising solute and a wash solution zinc content; maintaining the article in the wash solution for a wash time greater than 10 seconds to yield a washed article comprising a washed zinc content; wherein the washed zinc content is greater than the initial zinc content; and wherein the washed article demonstrates 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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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：US11353425B2
公开(公告)日：2022-06-07
申请号：US16996272
申请日：2020-08-18
Applicant: Ascend Performance Materials Operations LLC
Inventor： Wai-shing Yung , Harrie Schoots , Rahim Jindani , Victor G. Kholodkov , Jeffrey L. Walker
IPC: G01N27/60
Abstract: A method for measuring the attraction propensity of fabric including the steps of charging a neutralized test fabric, optionally by contacting with a charging fabric, presenting the charged test fabric a predetermined distance from a static-influenced agent such that at least a portion of the static-influenced agent attaches to the charged test fabric, and determining the quantity of attached static-influenced agent.
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