Aromatic polyamide compositions with improved electrostatic properties, formed structures produced therefrom, and use and production thereof

US5554722A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Dieter Eichenauer · Kriftel, DE
• Werner Groh · Lich, DE
• Hans-Tobias Macholdt · Darmstadt, DE
• Jorg Dahringer · Bobingen, DE
• Holger Jung · Aldenhoven, DE
• Richard Neuert · Kelheim, DE

Key dates

• Filing date: Aug 15, 1994
• Grant date: Sep 10, 1996
• Expiry date: Aug 15, 2014

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D04H1/5414
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Aromatic polyamide compositions with improved electrostatic properties, formed structures produced therefrom, and use and production thereof. Described are compositions comprising an aromatic polyamide which is soluble in organic solvents and from 0.01 to 30% by weight, based on the weight of the composition, of an organic or organometallic charge control agent. The compositions can be used for producing formed structures, in particular fibers; these fibers are preferably used for producing webs which can be used for producing dust filters.