公开(公告)号：US20210403624A1

公开(公告)日：2021-12-30

申请号：US17293214

申请日：2019-11-15

Applicant: Cytec Industries Inc.

Inventor： Jeremy MOSKOWITZ ,  Varun KUMAR ,  John Desmond COOK ,  Amy TUCKER ,  Eric GLADDEN

IPC: C08F220/46 ,  D01D5/06 ,  D01F9/22

Abstract: The present disclosure relates to the production of polyacrylonitrile-based polymers with high conversion by a process comprising reacting acrylonitrile with at least one comonomer in the presence of a radical initiator in a liquid medium, wherein the radical initiator is present in an amount of from about 0.6 wt % to about 1.8 wt %, relative to the amount of acrylonitrile, and wherein no chain transfer agent is present. The polyacrylonitrile-based polymers produced may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.

公开(公告)号：US20220195627A1

公开(公告)日：2022-06-23

申请号：US17607488

申请日：2020-05-01

Applicant: Cytec Industries Inc.

Inventor： Jeremy MOSKOWITZ ,  Thomas TAYLOR ,  Amy TUCKER ,  Eric GLADDEN ,  Billy HARMON

IPC: D01D5/06 ,  C01B32/05 ,  D01F9/22 ,  D01D5/14

Abstract: The present disclosure relates to a process for producing one or more carbon fiber precursor fibers, particularly by spinning a polymer solution, wherein the polymer has a polydispersity (PDI) of less than or equal to 2, in a coagulation bath with a jet stretch of about 5 to about 60. The one or more carbon fiber precursor fibers produced may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.