公开(公告)号：US20240074438A1

公开(公告)日：2024-03-07

申请号：US18451411

申请日：2023-08-17

Applicant: Ascend Performance Materials Operations LLC

Inventor： Scott E. Osborn ,  Wai-shing Yung ,  Albert Ortega

IPC: A01N57/00 ,  A01N59/16 ,  D01D5/098 ,  D01F8/12 ,  D04H1/4334 ,  D04H3/009

CPC classification number: A01N57/00 ,  A01N59/16 ,  D01D5/0985 ,  D01F8/12 ,  D04H1/4334 ,  D04H3/009 ,  D10B2331/02 ,  D10B2401/13 ,  Y10T442/607

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.

公开(公告)号：US11780804B2

公开(公告)日：2023-10-10

申请号：US16880717

申请日：2020-05-21

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Darrick Elmore

IPC: C07C253/34

CPC classification number: C07C253/34

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.

公开(公告)号：US11758909B2

公开(公告)日：2023-09-19

申请号：US16719308

申请日：2019-12-18

Applicant: Ascend Performance Materials Operations LLC

Inventor： Scott E. Osborn ,  Wai-shing Yung ,  Albert Ortega

IPC: A01N57/00 ,  A01N59/16 ,  D01D5/098 ,  D04H3/009 ,  D01F8/12 ,  D04H1/4334

CPC classification number: A01N57/00 ,  A01N59/16 ,  D01D5/0985 ,  D01F8/12 ,  D04H1/4334 ,  D04H3/009 ,  D10B2331/02 ,  D10B2401/13 ,  Y10T442/607

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.

公开(公告)号：US20230175197A1

公开(公告)日：2023-06-08

申请号：US18061143

申请日：2022-12-02

Applicant: Ascend Performance Materials Operations LLC

Inventor： Victor G. Kholodkov ,  Wai-shing Yung

IPC: D06M11/83 ,  D06M23/10

CPC classification number: D06M11/83 ,  D06M23/10 ,  D06M2101/16

Abstract: A wet treatment process, the process comprising: adding an article comprising a polymer and an initial zinc content to a wash solution comprising solute and a wash solution zinc content; maintaining the article in the wash solution for a wash time greater than 10 seconds to yield a washed article comprising a washed zinc content; wherein the washed zinc content is greater than the initial zinc content; and wherein the washed article demonstrates 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).

公开(公告)号：US11618238B2

公开(公告)日：2023-04-04

申请号：US16845887

申请日：2020-04-10

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-Shing Yung ,  Albert E. Ortega ,  Joseph L. Menner ,  Vikram Gopal

IPC: B32B5/02 ,  D04H1/56 ,  B32B27/28 ,  B32B37/04 ,  B82Y30/00 ,  B82Y40/00

Abstract: Nonwoven multilayer structures having at least two nanofiber layers are described herein. The nonwoven multilayer structure may have two nanofibers layers that have different properties from each other, such as fiber diameter. One nanofiber layer may be produced by an electrospinning process, while another nanofiber layer may be produced by a melt blown process.

公开(公告)号：US11578438B2

公开(公告)日：2023-02-14

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 ,  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.

公开(公告)号：US11447609B2

公开(公告)日：2022-09-20

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 ,  C08K5/00 ,  B29C48/00 ,  B29C48/40 ,  B29C48/625 ,  B29C48/76 ,  C08L77/06 ,  B29K105/00 ,  B29K77/00 ,  C08G69/28

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：US11353425B2

公开(公告)日：2022-06-07

申请号：US16996272

申请日：2020-08-18

Applicant: Ascend Performance Materials Operations LLC

Inventor： Wai-shing Yung ,  Harrie Schoots ,  Rahim Jindani ,  Victor G. Kholodkov ,  Jeffrey L. Walker

IPC: G01N27/60

Abstract: A method for measuring the attraction propensity of fabric including the steps of charging a neutralized test fabric, optionally by contacting with a charging fabric, presenting the charged test fabric a predetermined distance from a static-influenced agent such that at least a portion of the static-influenced agent attaches to the charged test fabric, and determining the quantity of attached static-influenced agent.

公开(公告)号：US20220169913A1

公开(公告)日：2022-06-02

申请号：US17524449

申请日：2021-11-11

Applicant: PFP TECHNOLOGY, LLC ,  ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

Inventor： Aziz Hikem ,  Madhukar Chetty ,  Derek Vaughn ,  Prasad Taranekar ,  Jeffery W. Balko

IPC: C09K8/575 ,  C09K8/86 ,  C07C19/01 ,  C07C22/04 ,  C07C55/02 ,  C07C55/22 ,  C07C211/09 ,  C07C211/13 ,  C07D303/08 ,  C09K8/60

Abstract: Clay stabilization compositions include one or a plurality of triamino compounds and/or derivatives thereof, fluids containing an effective amount of the clay stabilization compositions and methods for making and using same.

公开(公告)号：US11299627B2

公开(公告)日：2022-04-12

申请号：US16455278

申请日：2019-06-27

Applicant: Ascend Performance Materials Operations LLC

Inventor： Kimberly M. White ,  Scott E. Powers ,  Jacob G. Ray ,  Bradley J. Sparks

IPC: C08L77/02 ,  B29C45/00 ,  C08K3/013 ,  C08K3/014 ,  C08K3/016 ,  C08K3/34 ,  C08K5/00 ,  C08K5/3465 ,  C08K9/06 ,  B29K77/00 ,  C08K3/22

Abstract: The present disclosure relates to polyamide compositions and resulting injection-molded articles that can be plated, e.g., metal coated, to form aesthetic injection-molded articles. The polyamide compositions may include from 45 wt. % to 75 wt. % of an polyamide, from 2 wt. % to 40 wt. % of an etchable filler, from 10 wt. % to 40 wt. % of a semi-structural mineral, and optionally from 0.1 wt. % to 13 wt. % of additive. The polyamide composition imparts very good surface appearance to injection-molded articles that are substantially free of visual defects.