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61.发明申请公开(公告)号：US20180340042A1
公开(公告)日：2018-11-29
申请号：US15778778
申请日：2016-11-29
Applicant: Ascend Performance Materials Operations LLC
Inventor： James E. Polk , Chris E. Schwier , Ashish Sen , Craig A. Trask , Cihan Uzunpinar , Chie-Hsiung Wang , J. Marty Zabcik
Abstract: A customizable polyamide polymer, in particular Nylon 66, Nylon 6, and copolyamides, having a high molecular weight, excellent color, and low gel content is disclosed. In particular, disclosed is a polymer having a relative viscosity greater than 50 as measured in a 90% strength formic acid solution; consistent viscosity with a standard deviation of less than 1; a gel content no greater than 50 ppm as measured by insolubles larger than 10 micron; an optical defect content of less than 2,000 parts per million (ppm) as measured by optical control system (OCS). The polymer can be made into monofilaments or a multifilament yarn.Also disclosed is a process of producing the polymer using in-line vacuum finishing technology in the absence of steam or other gases in the second, or post condensation, step of the polymer process.
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公开(公告)号：US20240191075A1
公开(公告)日：2024-06-13
申请号：US18523012
申请日：2023-11-29
Applicant: Ascend Performance Materials Operations LLC
Inventor： Kimberly M. White
IPC: C08L77/06
CPC classification number: C08L77/06 , C08L2205/035
Abstract: A flame retardant polyamide composition comprising a synergistic combination of an epoxy-terminated brominated epoxy polymer with a tribromophenol end-capped brominated epoxy polymer. The polyamide compositions have excellent resistance to heat and good elongation-at-break properties without the presence of decabromodiphenyl ethane.
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公开(公告)号：US11814337B2
公开(公告)日：2023-11-14
申请号：US17466882
申请日：2021-09-03
Applicant: Ascend Performance Materials Operations LLC
Inventor： Kyle Kissell , Basil Michaels
IPC: C07C253/34 , B01D3/14
CPC classification number: C07C253/34 , B01D3/143
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：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.
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公开(公告)号：US11643552B2
公开(公告)日：2023-05-09
申请号：US17307020
申请日：2021-05-04
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： Jacob G. Ray , Ramesh Ramakrishnan , Douglas Claire Hoffman , Roland M. Planeta
CPC classification number: C08L77/06 , C08J5/18 , C08J2377/06 , C08J2477/06 , C08L2205/025
Abstract: Provided herein are polymer films including a polyamide composition of PA6 and PA66/6. The provided films are particularly useful as packaging materials as they exhibit improved toughness, e.g., puncture and impact resistance, relative to that of conventional films that include only PA6 as a polyamide component. Also provided are methods for making the provided films, and articles that include the provided films.
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Patent Agency Ranking
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.
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公开(公告)号：US20230008538A1
公开(公告)日：2023-01-12
申请号：US17854591
申请日：2022-06-30
Applicant: Ascend Performance Materials Operations LLC
Inventor： Huayun Yu , Zhensheng Ding , Ernst Bezemer , Kyle Kissell
IPC: C07C209/48 , C07C253/22
Abstract: Reaction pathways and conditions for the production of nitrogen-containing chelators, such as a glycine derivative, with reduction of ammonia byproducts. In particular, the present disclosure describes a process for the production of a nitrile intermediate by reacting a tetra-amino compound or dinitrile compound with an aldehyde and a hydrogen cyanide to form the nitrile intermediate. The nitrile intermediate may then be further processed to produce chelators at a high yield and/or a high purity.
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公开(公告)号：US20220325101A1
公开(公告)日：2022-10-13
申请号：US17751949
申请日：2022-05-24
Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Inventor： Jacob Ray , Chris Schwier , Douglas Claire Hoffman , Muhamad Fouad
Abstract: A base polyamide composition comprising a nylon mixture having caprolactam units from 1 wppb to 50 wppm catalyst composition; and greater than 0.75 wt % residual caprolactam, wherein the base polyamide composition has a delta end group level ranging from 30 μeq/gram to 90 μeq/gram.
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公开(公告)号：US11376534B2
公开(公告)日：2022-07-05
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：US20220154061A1
公开(公告)日：2022-05-19
申请号：US17522388
申请日：2021-11-09
Applicant: Ascend Performance Materials Operations LLC
Inventor： Salar Afra , Hamidreza Samouei , Hisham Nasr-El-Din , Zheng Chai , Jefferson Thomas Ebert , Benjamin Haseltine
IPC: C09K8/04
Abstract: Disclosed herein are drilling fluid compositions suitable for use, for example, in drilling a well bore through a subterranean formation and other oil and gas operations. The drilling fluid compositions of the present disclosure include the condensation product of a trifunctional amine and a fatty acid and an oil base fluid. The present disclosure also described processes for preparing drilling fluid compositions.
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