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公开(公告)号：WO2022051659A1
公开(公告)日：2022-03-10
申请号：PCT/US2021/049125
申请日：2021-09-03
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： KISSELL, Kyle , MICHAELS, Basil
IPC: C07C253/34 , C07C255/03
Abstract: A process for producing acetonitrile, the process comprising: treating a feedstock stream comprising methanol, allyl alcohol, oxazole, acetonitrile, water, and hydrogen cyanide to remove hydrogen cyanide and produce an acetonitrile stream comprising less than 1 wt.% hydrogen cyanide. The process further comprises the step of distilling the acetonitrile stream in a first distillation column to produce a first distillate comprising oxazole and methanol; a first intermediate acetonitrile stream comprising acetonitrile and oxazole and less than 1 wt% allyl alcohol; a first bottoms stream comprising allyl alcohol and water. The process further comprises the step of purifying the first intermediate acetonitrile stream to produce an acetonitrile product stream and a recycle stream comprising allyl alcohol.
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公开(公告)号：WO2021231590A1
公开(公告)日：2021-11-18
申请号：PCT/US2021/032019
申请日：2021-05-12
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： SPARKS, Bradley J. , RAY, Jacob G. , WIECZOREK, Ted , BECKER, Kai , LIMA, Avelino , OWEIMREEN, Tariq
Abstract: Provided herein are polyamide compositions including one or more semi-crystalline polyamides and either an amorphous polyamide or a semi-crystalline copolyamide such as PA66/6. The provided compositions are particularly useful as vibration isolators more effective at high-temperature noise and harshness damping than conventional polyamide compositions. Also provided are methods for making the provided compositions, and articles that include the provided compositions.
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公开(公告)号：WO2021178681A1
公开(公告)日：2021-09-10
申请号：PCT/US2021/020897
申请日：2021-03-04
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： GOPAL, Vikram , YUNG, Wai-Shing , ORTEGA, Albert
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.
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公开(公告)号：WO2021178673A1
公开(公告)日：2021-09-10
申请号：PCT/US2021/020887
申请日：2021-03-04
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： GOPAL, Vikram , YUNG, Wai-Shing , ORTEGA, Albert
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：WO2020242931A1
公开(公告)日：2020-12-03
申请号：PCT/US2020/034190
申请日：2020-05-22
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： DUBE, Sanjay , ELMORE, Darrick
IPC: C07C253/34 , C07C255/05
Abstract: Provided herein are processes for purifying TCH in a feed stream, such as an adiponitrile process stream. The processes include a first separating step of separating the adiponitrile process stream to form a first overhead stream comprising low-boiling components and high- boiling components and a first bottoms stream comprising high-boiling components. The processes also include a second separating step of separating the first overhead stream in one or more distillation columns to form a lights stream comprising low-boiling components, a heavies stream comprising high-boiling components, and a TCH stream.
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Patent Agency Ranking
公开(公告)号：WO2020163571A1
公开(公告)日：2020-08-13
申请号：PCT/US2020/016965
申请日：2020-02-06
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： SPARKS, Bradley J. , HENSARLING, Ryan M.
IPC: C08L77/06
Abstract: A heat-stabilized polyamide composition comprising from 25 wt% to 99 wt% of an amide polymer having an amine end group level greater than 50 µeq/gram; a first stabilizer comprising a lanthanoid-based compound; a second stabilizer; and from 0 wt% to 65 wt% filler; wherein, when heat aged for 3000 hours over a temperature range of from 190ºC to 220ºC, the polyamide composition demonstrates a tensile strength retention of greater than 51%, as measured at 23ºC.
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公开(公告)号：WO2020146308A1
公开(公告)日：2020-07-16
申请号：PCT/US2020/012469
申请日：2020-01-07
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： WHITE, Kimberly M.
Abstract: A non-halogenated flame retardant polyamide composition is disclosed which comprises a polyamide, a non-halogenated flame retardant, and a synergist. The polyamide may have a ratio of carboxylic acid to amine end groups of greater than 1.8. Products formed from the composition are also disclosed. The polyamide may comprise nylon 6,6.
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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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