Cytec Industries Inc.

John Desmond Cook

Billy D Harmon

Thomas Baker Taylor

Jeremy Moskowitz

Longgui Tang

Alan D Thomas

Shao C Chiu

Amy Tucker

Suzanne Crawford

Varun Kumar

Girish Vishnukant Deshpande

Barry DeWayne Meece

Eric Gladden

James Smith

Peter Mills

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.

Process for the production of homogeneous solutions of polyacrylonitrile-based polymer

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.

Controlling the degree of swelling of polymer fibers during coagulation

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.

Manufacture of intermediate modulus carbon fiber

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Piedmont, SC, United States of America

John Desmond Cook