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

IPC: C23F11/12 ,  C23F11/14

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.

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

IPC: C08L77/06 ,  C08G69/14 ,  C08L77/02 ,  C08G69/26

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.

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

IPC: C08G69/26 ,  B29C48/00 ,  B29C45/00 ,  C08J3/20 ,  C08K5/00 ,  C08K5/529 ,  B29K77/00 ,  B29K105/00

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.

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.

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.

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.

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.

公开(公告)号：US11111209B2

公开(公告)日：2021-09-07

申请号：US16682167

申请日：2019-11-13

Applicant: Ascend Performance Materials Operations LLC

Inventor： Basil Michael ,  Carl Alexander Diaz ,  Billy Nelson ,  Kyle Kissell

IPC: C07C253/34

Abstract: A process for producing a high-purity acetonitrile product from a low-purity acetonitrile feedstock streams. In particular, the present disclosure relates to a process for producing a sales-grade, high purity acetonitrile by (a) distilling the feedstock stream in a to yield a crude acetonitrile stream, (b) treating the crude acetonitrile stream to produce an intermediate acetonitrile stream, (c) purifying the intermediate acetonitrile stream in a pressure swing distillation system to produce a recycle stream and an acetonitrile product stream, (d) recycling the recycle stream to the first distillation column, and (e) distilling the acetonitrile product stream to yield a purified acetonitrile product stream of at least 98 wt. % acetonitrile.

公开(公告)号：US20210262131A1

公开(公告)日：2021-08-26

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

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.

公开(公告)号：US20210155579A1

公开(公告)日：2021-05-27

申请号：US16953521

申请日：2020-11-20

Applicant: Ascend Performance Materials Operations LLC

Inventor： Todd R. Boehlow ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Sanjay Dube ,  Darrick Elmore

IPC: C07C255/05

Abstract: The disclosure relates to the cyanocarbon compositions and processes for producing the same. The cyanocarbon compositions comprise tricyanohexane and one or more coproducts of the tricyanohexane production reaction. Exemplary coproducts include tetracyano compounds, cyanoalkenes, cyanooximes, cyanoamides, and combinations thereof.