Process for the manufacture of fibrids of thermoplastics materials

US4013744A · kind A · utility

Assignee

• Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

• Heribert Kuerten · Neustadt, DE
• Otto Nagel
• Richard E. Sinn
• Werner Weinle · Friedelsheim, DE
• Peter Engler · River Falls, US

Key dates

• Filing date: Feb 26, 1973
• Grant date: Mar 22, 1977
• Expiry date: Feb 26, 1993

Classification

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

Abstract

A process for the manufacture of fibrids of thermoplastics materials by extruding molten thermoplastics through dies and breaking up the extrudate into fibers by means of a liquid medium causing shear stresses within a small volume, to which end the extrudate is passed to a zone of high energy dissipation so that it is completely divided up into fibers of the desired size in a single pass.