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公开(公告)号：US20230033363A1
公开(公告)日：2023-02-02
申请号：US17871181
申请日：2022-07-22
Applicant: Ascend Performance Materials Operations LLC
Inventor： Zheng CHAI , Jefferson EBERT , Joshua ABELL
Abstract: A cleaning composition having an aqueous solutions containing amino carboxylic acid chelators comprising (a) trans-1,2-diaminocyclohexane-N,N,N′,N′-tetraacetic acid monohydrate or salt thereof or (b) iminodiacetic acid or salt thereof may be used as an alternative for phosphates, NTA, and/or EDTA. The cleaning composition is used in industrial, commercial, or residential settings.
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公开(公告)号：US11560353B2
公开(公告)日：2023-01-24
申请号：US17138591
申请日：2020-12-30
Applicant: Ascend Performance Materials Operations LLC
Inventor： Sanjay Dube , Benjamin Haseltine , Jefferson Thomas Ebert , Darrick Elmore
IPC: C07C253/34
Abstract: The present disclosure relates generally to processes for recovering tricyanohexane (TCH) via purification of by-product or co-product streams of adiponitrile production. In particular, the present disclosure relates to a process for purifying tricyanohexane (TCH), the process having the steps of (a) separating an adiponitrile process stream comprising adiponitrile and TCH to form a first overhead lights stream comprising low-boiling components and high-boiling components and a first bottoms heavies stream comprising high-boiling components and solid impurities; and (b) separating the first overhead lights stream in a distillation column to form a second overhead lights stream comprising low-boiling components, a second bottoms heavies stream comprising high-boiling components, and a TCH stream comprising TCH and less than 10 wt. % impurities; wherein the distillation column is a low pressure distillation column.
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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：US11492710B2
公开(公告)日：2022-11-08
申请号：US17097075
申请日：2020-11-13
Applicant: Ascend Performance Materials Operations LLC
Inventor： Hamidreza Samouei , Salar Afra , Hisham Nasr-El-Din , Zheng Chai , Jefferson Thomas Ebert , Benjamin Haseltine
Abstract: Corrosion inhibitor compositions for reducing the corrosive effect of acidic environments on metallic substrates are provided herein. In particular, the present disclosure describes corrosion inhibitor compositions comprising a condensation product of a trifunctional amine and a fatty acid. The present disclosure also describes methods of preparing and of using such corrosion inhibitor compositions.
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公开(公告)号：US20220325103A1
公开(公告)日：2022-10-13
申请号：US17835258
申请日：2022-06-08
Applicant: Ascend Performance Materials Operations LLC
Inventor： Jacob G. Ray , Douglas Hoffman , Scott E. Powers
Abstract: A terpolymer composition is described that contains a statistical amount of 50-98 wt % of a first repeating AA-BB comonomer unit; 1-25 wt % of a second repeating AA-BB comonomer unit; and 1-25 wt % of a repeating lactam comonomer unit or 1-25 wt % of a third repeating AA-BB comonomer unit, where the terpolymer composition exhibits a high melting point similar to that of PA66 while also exhibiting a significantly reduced crystallization rate and crystallization temperature.
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Patent Agency Ranking
公开(公告)号：US11384201B2
公开(公告)日：2022-07-12
申请号：US16735816
申请日：2020-01-07
Applicant: Ascend Performance Materials Operations LLC
Inventor： Kimberly M. White
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：US20220143583A1
公开(公告)日：2022-05-12
申请号：US17582703
申请日：2022-01-24
Applicant: Ascend Performance Materials Operations LLC
Inventor： Y. T. CHI , Scott Moffatt , John Tjaden , Chelsea Loyd , Lori Ables
IPC: B01J23/92 , B01J23/28 , B01J38/02 , C07C253/24
Abstract: The present disclosure relates to a process for stabilizing an antimony ammoxidation catalyst in an ammoxidation process. The process may comprise providing an antimony ammoxidation catalyst to a reactor; reacting propylene with ammonia and oxygen in the fluidized bed reactor in the presence of the antimony ammoxidation catalyst to form a crude acrylonitrile product; and adding an effective amount of an antimony-containing compound to the antimony ammoxidation catalyst to maintain catalyst conversion and selectivity; wherein the antimony-containing compound has a melting point less than 375° C. The present disclosure also relates to catalyst compositions and additional processes using the antimony ammoxidation catalyst stabilized by an antimony-containing compound.
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公开(公告)号：US20220073451A1
公开(公告)日：2022-03-10
申请号：US17466880
申请日：2021-09-03
Applicant: Ascend Performance Materials Operations LLC
Inventor： Kyle Kissell , Basil Michaels
IPC: C07C253/34
Abstract: Provided herein are processes for the separation of acetonitrile from low-purity feedstock streams. The provided processes are particularly useful for isolating acetonitrile at high purity from chemical manufacturing waste streams that include methanol, water, and allyl alcohol.
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公开(公告)号：US20210403414A1
公开(公告)日：2021-12-30
申请号：US17363841
申请日：2021-06-30
Applicant: Ascend Performance Materials Operations LLC
Inventor： Huayun Yu , Zhensheng Ding , Nick Sparkman , Thomas Peavy , Ernst Bezemer , Kyle Kissell
IPC: C07C227/26 , C07C253/10 , C07C253/30
Abstract: Reaction pathways and conditions for the production of nitrogen-containing chelators, such as a glycine derivative, are described herein. In particular, the present disclosure describes a process for the production of a nitrile intermediate by reacting a tetra-amino compound with an aldehyde and a hydrogen cyanide to form the nitrile intermediate. The nitrile intermediate may then be further processed to produce the chelators at a high yield and/or a high purity.
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公开(公告)号：US20210300862A1
公开(公告)日：2021-09-30
申请号：US17343303
申请日：2021-06-09
Applicant: Ascend Performance Materials Operations LLC
Inventor： Yawu T. CHI , James Sutton , Ali Akhavan , Celia L. Kniepmann , Matthew D. Cox , Valerie S. Monical
IPC: C07C253/18 , B01J8/00 , B01J8/18 , C07C253/24
Abstract: The present disclosure relates to fluid bed processes that utilize silica particles as a fluidization aid. The process comprises reacting one or more reactants in a reactor comprising a fluid bed to form a product. The fluid bed comprises a catalyst composition comprising a catalyst and an inert additive composition comprising silica particles from 0.5 wt % to 30 wt %, based on the total weight of the catalyst composition. The silica particles are discrete, inert particles that are mixed with the catalyst in the fluid bed.
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