Crosslinked acrylonitrile copolymers

US4131724A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Eduard Radlmann
• Ulrich Reinehr · Dormagen, DE
• Peter Hoffmann · Senden, DE
• Dieter Arlt · Cologne, DE
• Gunther Nischk · Dormagen, DE

Key dates

• Filing date: May 18, 1977
• Grant date: Dec 26, 1978
• Expiry date: May 18, 1997

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01F6/54
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a process for the production of crosslinked fibres or filaments by spinning an acrylonitrile copolymer containing at least 20 mVal of carboxyl groups per kg of polymer together with a polyoxazoline in a polar organic solvent and thereafter crosslinking at temperatures of from 120 to 190.degree. C. The invention also relates to crosslinked acrylonitrile fibres and filaments obtainable by this process.