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：US20220153935A1

公开(公告)日：2022-05-19

申请号：US17442869

申请日：2020-03-27

Applicant: Cytec Industries Inc.

Inventor： Varun KUMAR ,  Peter MILLS ,  Jeremy MOSKOWITZ ,  John Desmond COOK ,  James SMITH ,  Billy HARMON

IPC: C08J3/05 ,  C08J3/09 ,  B01F23/50 ,  B01F25/431

Abstract: The present disclosure relates to a process for producing homogeneous solutions comprising dissolved polyacrylonitrile-based polymer, and a system suitable therefor. The homogeneous polymer solutions produced by the process described herein may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.

公开(公告)号：US20210284774A1

公开(公告)日：2021-09-16

申请号：US17255643

申请日：2019-07-02

Applicant: Cytec Industries Inc.

Inventor： Jeremy MOSKOWITZ ,  William JACOBS ,  Amy TUCKER ,  Billy HARMON

IPC: C08F220/18 ,  C07C277/08 ,  D01F9/22 ,  D01F6/38 ,  D01D1/02 ,  D01D1/04 ,  D01D10/06

Abstract: A polymer comprising repeating units derived from a first monomer, typically acrylonitrile, and repeating units derived from a second monomer different from the first monomer, wherein the second monomer is a compound comprising an ethylenically unsaturated organic anion and an organic cation containing a C═N imine group; a process for producing carbon fibers using the said polymer; and carbon fibers made therefrom, are described herein.

公开(公告)号：US20210230775A1

公开(公告)日：2021-07-29

申请号：US15734691

申请日：2019-06-05

Applicant: Cytec Industries Inc.

Inventor： Jeremy MOSKOWITZ ,  Thomas TAYLOR ,  Amy TUCKER ,  Alan THOMAS ,  Billy HARMON

IPC: D01D5/06 ,  D01D5/08 ,  D01F9/22

Abstract: The present disclosure relates to a process for producing carbon fibers utilizing a salt of an organic cation containing C═N imine group, and carbon fibers produced by such process.

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.

公开(公告)号：US20210348304A1

公开(公告)日：2021-11-11

申请号：US17278367

申请日：2019-09-26

Applicant: Cytec Industries Inc.

Inventor： John Desmond COOK ,  Suzanne CRAWFORD ,  Varun KUMAR ,  Thomas TAYLOR ,  Jeremy MOSKOWITZ

IPC: D01F9/22 ,  D01D5/06

Abstract: The present disclosure relates to the control of the degree of swelling of polymer fiber, such as polymer fiber used in the manufacturing of composite materials, by control of the pH of the coagulation bath during spinning.