Manufacture of intermediate modulus carbon fiber

US11479881B2 · kind B2 · utility

Assignee

• CYTEC INDUSTRIES, INC. · US

Inventors

• John Desmond COOK · Piedmont, US
• Thomas Taylor · Greenville, US
• Girish Vishnukant Deshpande · Simpsonville, US
• Longgui Tang · Greenville, US
• Barry DeWayne Meece · Piedmont, US
• Suzanne Crawford · Anderson, US
• Shao-Chen Chiu · Taichung, TW
• Billy Harmon · Simpsonville, US
• Alan D. Thomas · Mauldin, US

Key dates

• Filing date: Feb 15, 2016
• Grant date: Oct 25, 2022
• Expiry date: Sep 3, 2036

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01F9/225
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

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.