公开(公告)号：WO2020041396A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/047381

申请日：2019-08-21

Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

Inventor： RAY, Jacob ,  SCHWIER, Chris ,  HOFFMAN, Douglas ,  FOUAD, Muhamad

IPC: C08G69/16 ,  C08G69/30 ,  C08G69/46 ,  C08J5/18

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.

公开(公告)号：WO2018227069A1

公开(公告)日：2018-12-13

申请号：PCT/US2018/036637

申请日：2018-06-08

Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

Inventor： YUNG, Wai-Shing ,  OSBORN, Scott ,  SCHWIER, Chris ,  GOPAL, Vikram ,  ORTEGA, Albert

IPC: D04H1/4334

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：EP3635162A1

公开(公告)日：2020-04-15

申请号：EP18735468.3

申请日：2018-06-08

Applicant: Ascend Performance Materials Operations LLC

Inventor： YUNG, Wai-Shing ,  OSBORN, Scott ,  SCHWIER, Chris ,  GOPAL, Vikram ,  ORTEGA, Albert

IPC: D04H1/4334

公开(公告)号：EP4159909A1

公开(公告)日：2023-04-05

申请号：EP22202835.9

申请日：2018-06-08

Applicant: Ascend Performance Materials Operations LLC

Inventor： YUNG, Wai-Shing ,  OSBORN, Scott ,  SCHWIER, Chris ,  GOPAL, Vikram ,  ORTEGA, Albert

IPC: D04H1/4334 ,  D21H13/26 ,  D21H27/08 ,  B01D39/16

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.