公开(公告)号：US20250043466A1

公开(公告)日：2025-02-06

申请号：US18696293

申请日：2022-09-12

Applicant: Cytec Industries Inc. ,  SOLVAY SA

Inventor： Varun KUMAR ,  Janos OLAH ,  John Desmond COOK

IPC: D01F9/22 ,  D01D4/00 ,  D01D5/06 ,  D01D5/18

Abstract: The present disclosure relates to a cyclone-producing apparatus for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the cyclone-producing apparatus and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.

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：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：US20170362742A1

公开(公告)日：2017-12-21

申请号：US15315220

申请日：2016-02-15

Applicant: CYTEC INDUSTRIES INC.

Inventor： John Desmond COOK ,  Thomas TAYLOR ,  Girish Vishnukant DESHPANDE ,  Longgui TANG ,  Barry DeWayne MEECE ,  Suzanne CRAWFORD ,  Shao C. CHIU ,  Billy D. Harmon ,  Alan THOMAS

IPC: D01D5/06 ,  D01F9/22 ,  B29C47/00 ,  D01F6/18 ,  B29L31/00 ,  B29K33/20 ,  D01F6/38

CPC classification number: D01D5/06 ,  B29C48/022 ,  B29C48/05 ,  B29K2033/20 ,  B29L2031/731 ,  D01F6/18 ,  D01F6/38 ,  D01F9/12 ,  D01F9/22 ,  D01F9/225

Abstract: The present disclosure relates generally to carbon fibers having high tensile strength and modulus of elasticity, as well as a process for the manufacture of such carbon fiber. The process comprises spinning a polymer/solvent solution into a solvent/water bath in the range of 78%-85% solvent, thereby producing a dense fiber structure, and subsequently carbonizing the polymer precursor fiber at a lower than typical carbonization temperature to form carbon fibers.

公开(公告)号：US20240376640A1

公开(公告)日：2024-11-14

申请号：US18696809

申请日：2022-10-04

Applicant: Cytec Industries Inc.

Inventor： Janos OLAH ,  Varun KUMAR ,  John Desmond COOK

IPC: D01D4/02 ,  D01D5/06

Abstract: The present disclosure relates to a spinneret housing for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the spinneret housing and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.

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.