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公开(公告)号：WO2020014585A1
公开(公告)日：2020-01-16
申请号：PCT/US2019/041561
申请日：2019-07-12
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： OSBORN, Scott E. , YUNG, Wai-Shing
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：WO2021127306A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/065793
申请日：2020-12-18
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： ORTEGA, Albert , YUNG, Wai-shing , OSBORN, Scott E.
IPC: D01F6/60 , D01F1/10 , D01D5/08 , A01N25/10 , A01N59/16 , C08K3/22 , A01N25/34 , C08K2003/2296 , C08K5/098 , D01F1/103
Abstract: The present disclosure relates to a process for preparing fibers and/or fabrics having antimicrobial properties, the process comprising: determining an operating pressure limit; calculating an amount of zinc based on the operating pressure limit; forming a polyamide composition comprising: polyamide; and the calculated amount of zinc; forming fibers from the polyamide composition, wherein the forming is conducted at an operating pressure below the operating pressure limit.
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公开(公告)号：WO2020132006A1
公开(公告)日：2020-06-25
申请号：PCT/US2019/067078
申请日：2019-12-18
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： OSBORN, Scott E. , YUNG, Wai-Shing
Abstract: The present disclosure relates to polymer compositions, fibers, and yarns having near-permanent antimicrobial activity, and a method of producing the same. The antimicrobial polymer composition comprises 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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公开(公告)号：WO2020132002A1
公开(公告)日：2020-06-25
申请号：PCT/US2019/067073
申请日：2019-12-18
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： OSBORN, Scott E. , YUNG, Wai-Shing , ORTEGA, Albert
IPC: D04H1/4334 , D04H1/56 , A01N25/34 , C08K5/00
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：WO2019237018A1
公开(公告)日：2019-12-12
申请号：PCT/US2019/036080
申请日：2019-06-07
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： YUNG, Wai-Shing , SCHWIER, Chris E. , ORTEGA, Albert , OSBORN, Scott E.
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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Patent Agency Ranking
公开(公告)号：EP3468424A1
公开(公告)日：2019-04-17
申请号：EP17810819.7
申请日：2017-06-06
Applicant: Ascend Performance Materials Operations LLC
Inventor： SCHOOTS, Harrie P. , YUNG, Wai-Shing , OSBORN, Scott E. , TRASK, Craig A.
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公开(公告)号：EP3899112A1
公开(公告)日：2021-10-27
申请号：EP19839057.7
申请日：2019-12-18
Applicant: Ascend Performance Materials Operations LLC
Inventor： OSBORN, Scott E. , YUNG, Wai-Shing
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公开(公告)号：EP3962626A1
公开(公告)日：2022-03-09
申请号：EP20727779.9
申请日：2020-05-01
Applicant: Ascend Performance Materials Operations LLC
Inventor： YUNG, Wai-Shing , OSBORN, Scott E. , MENNER, Joseph L. , ORTEGA, Albert E.
IPC: B01D39/16
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公开(公告)号：EP3821061A1
公开(公告)日：2021-05-19
申请号：EP19746291.4
申请日：2019-07-12
Applicant: Ascend Performance Materials Operations LLC
Inventor： OSBORN, Scott E. , YUNG, Wai-Shing
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公开(公告)号：EP3802924A1
公开(公告)日：2021-04-14
申请号：EP19732853.7
申请日：2019-06-07
Applicant: Ascend Performance Materials Operations LLC
Inventor： YUNG, Wai-Shing , SCHWIER, Chris E. , ORTEGA, Albert , OSBORN, Scott E.
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