Method of producing fibers by electrospinning at high pressures

US7935298B2 · kind B2 · utility

Assignee

• Virginia Commonwealth University · US

Inventors

• Mark A. McHugh · Baltimore, US
• Zhihao Shen · Richmond, US
• Diane L. Gee · Midlothian, US
• Georgios D. Karles · Richmond, US
• Jose Nepomuceno · Beaverdam, US
• Gary S. Huvard · Quinton, US

Key dates

• Filing date: Dec 23, 2004
• Grant date: May 3, 2011
• Expiry date: Sep 24, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2913
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process of making fibers by electrostatic spinning includes the use of a mixing vessel (10), a piston (15) for pressurizing the polymer, carbon dioxide sources (20) for lowering the viscosity of the polymer or pressurizing the collection vessel (35), a pressure generator (25), view ports (30), a target (36), a spinning needle (40), a camera/TV recorder (45) and a voltage source (50).