公开(公告)号：US20220112129A1

公开(公告)日：2022-04-14

申请号：US17479367

申请日：2021-09-20

Applicant: Ascend Performance Materials Operations LLC

Inventor： Zheng Chai ,  Jefferson Thomas Ebert ,  Chinenyeze Nwankwoala ,  David W. McNeece

IPC: C04B24/12 ,  C04B26/26

Abstract: Provided herein are antistripping compositions which may be used, for example, as additives to bitumen compositions such as asphalt concrete to prevent or reduce susceptibility to water damage. In particular, the antistripping compositions of the present disclosure have a triamine component and a nitrile component. Also provided herein are bitumen compositions, such as asphalt, having a portion of the described antistripping compositions as an additive.

公开(公告)号：US20210198187A1

公开(公告)日：2021-07-01

申请号：US17138605

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 ,  C07C255/05 ,  B01D15/20 ,  B01D15/24 ,  B01D15/18

Abstract: A process for producing a TCH stream, the process comprising: separating, in a first column, an adiponitrile process stream comprising TCH and optionally adiponitrile, to form an adiponitrile stream comprising greater than 5 wt. % adiponitrile and a first TCH stream comprising TCH, and optionally a heavies stream comprising high-boiling components and solid impurities; and optionally purifying the first TCH stream, via one or more columns, to form a purified TCH stream comprising greater than 50 wt. % TCH; wherein the first column is operated at a pressure drop less than 25 mmHg.

公开(公告)号：US20200277452A1

公开(公告)日：2020-09-03

申请号：US16787516

申请日：2020-02-11

Applicant: Ascend Performance Materials Operations LLC

Inventor： Raymond E. Fogle ,  Troy D. Calvert ,  Zachary J. Carben ,  Steven C. Manning ,  Chie H. Wang ,  Paul A. Wheeler ,  J. Marty Zabcik

IPC: C08J3/20 ,  B29C48/29 ,  C08K3/01 ,  C08G69/28 ,  C08K5/00

Abstract: The present invention provides a process for preparing an improved compounded product and a compounded product prepared by that process.

公开(公告)号：US20200269218A1

公开(公告)日：2020-08-27

申请号：US16797869

申请日：2020-02-21

Applicant: Ascend Performance Materials Operations LLC

Inventor： Y. T. Chi ,  Scott Moffatt ,  John Tjaden ,  Chelsea Lloyd ,  Lori Ables

IPC: B01J23/92 ,  C07C253/24 ,  B01J38/02 ,  B01J23/28

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：US20200254371A1

公开(公告)日：2020-08-13

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

IPC: B01D39/16 ,  B32B5/02 ,  B32B5/26 ,  A62B23/02

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.

公开(公告)号：US20200247993A1

公开(公告)日：2020-08-06

申请号：US16778420

申请日：2020-01-31

Applicant: Ascend Performance Materials Operations LLC

Inventor： Bradley J. Sparks ,  Ryan M. Hensarling ,  Kai Becker ,  Tariq Oweimreen

IPC: C08L77/06

Abstract: An impact-modified polyamide composition comprising from 5 wt % to 85 wt % of polyamide polymer; from 10 wt % to 60 wt % glass fiber; from 3 wt % to 30 wt % of an impact modifier; and a melt stabilizer at a concentration less than 5 wt %; wherein the weight ratio of the impact modifier to the melt stabilizer ranges from 1.0:1 to 100:1; and wherein the polyamide composition demonstrates an un-notched Charpy impact energy loss at 23° C. that is greater than 80 kJ/m2 and a tensile strength greater than 135 MPa.

公开(公告)号：US20200032057A1

公开(公告)日：2020-01-30

申请号：US16525121

申请日：2019-07-29

Applicant: Ascend Performance Materials Operations LLC

Inventor： Jacob G. Ray ,  Douglas Hoffman ,  Scott E. Powers

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

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：US20200002474A1

公开(公告)日：2020-01-02

申请号：US16455344

申请日：2019-06-27

Applicant: Ascend Performance Materials Operations LLC

Inventor： Michael K. Goodin ,  Chris Schwier ,  John J. Tria, JR.

IPC: C08G69/06 ,  C08G69/14

Abstract: The present disclosure relates to processes for producing high molecular weight polyamides from caprolactam. In particular, the present disclosure relates to processes for adding water during Solid State Polymerization (SSP) to remove residual caprolactam to form high molecular weight polyamides, e.g., Nylon 6 and Nylon 6,6 copolymers, having low residual caprolactam monomer content. The water addition step controls the SSP process for a specific time to produce polyamides with a desired molecular weight and low residual caprolactam monomer content.

公开(公告)号：US20190233642A1

公开(公告)日：2019-08-01

申请号：US16078703

申请日：2017-10-17

Applicant: Ascend Performance Materials Operations LLC

Inventor： Shawn J. Osborn ,  Christopher M. Carter

IPC: C08L77/06 ,  C08K5/3492 ,  C08K5/00 ,  C08K5/098 ,  C08K3/04 ,  C08K3/16

CPC classification number: C08L77/06 ,  C08K3/04 ,  C08K3/16 ,  C08K5/0066 ,  C08K5/0091 ,  C08K5/098 ,  C08K5/34924 ,  C08K5/34928 ,  C08K5/49 ,  C08L77/10 ,  C08L2201/02 ,  C09K21/10 ,  C09K21/12 ,  C08L77/00

Abstract: The present invention relates to a low-halogen flame retardant thermoplastic polyamide composition that provides improved mechanical and electrical stability at elevated temperatures, where the thermoplastic composition comprises a polyamide resin; a non-halogen, nitrogen-containing flame retardant; a heat stabilizer containing a copper halide and an organophosphorus compound; an optional lubricant and/or mold release agent; and an optional colorant.

公开(公告)号：US20190112455A1

公开(公告)日：2019-04-18

申请号：US16161342

申请日：2018-10-16

Applicant: Ascend Performance Materials Operations LLC

Inventor： Shawn J. Osborn

IPC: C08K13/02 ,  C09K21/08 ,  C08K5/02 ,  C08K5/20 ,  C08K3/22 ,  C08K5/134 ,  C08K3/04 ,  C08K3/34 ,  C08K3/26 ,  C08G69/26

Abstract: Flame retardant thermoplastic polyamide compositions are described that provide a superior combination of glow wire ignition and elongation/toughness properties, comprising a polyamide resin; a bromine-containing flame retardant; a hindered phenolic heat stabilizer; and optionally at least one of a flame retardant synergist, a plasticizer, a lubricant, a mold release agent, an acid scavenger and a colorant.