Manufacture of paper-like and textile-like sheets

US4098640A · kind A · utility

Assignee

• BASF SE

Inventors

• Bruno Sander · Ludwigshafen, DE
• Heinz Berbner · Prüm, DE
• Rolf Steinberger · Schifferstadt, DE
• Eckhard Ropte
• Jenoe Kovacs · Heßheim, DE
• Joachim Kunde

Key dates

• Filing date: Sep 28, 1976
• Grant date: Jul 4, 1978
• Expiry date: Sep 28, 1996

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01D5/40
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The manufacture of paper-like and textile-like sheet materials by the use of fibrids which have been obtained by dissolving poly(amide-imide) resins in an organic solvent, mixing the resulting solution with a liquid which is a non-solvent for the polymer and introducing the resulting solution into a liquid precipitation medium while exposing it to shearing forces. The present invention relates to the use, for the manufacture of paper-like and textile-like sheet materials, of novel fibrids, which have been obtained by dissolving poly(amide-imide) resins in an organic solvent, mixing the resulting solution with a liquid which is a non-solvent for the polymer and introducing the resulting solution into a liquid precipitation medium while exposing it to shearing forces.