Process for preparing high molecular weight polyamides

Abstract

Abstract The invention relates to a process for the preparation of particulate, high molecular weight polyamides, the particulate, high molecular weight polyamides prepared by the process, the use of these polyamides for the production of mouldings, especially by extrusion or blow moulding, and the articles produced from the polyamides according to the invention. The process is characterised in that polyamides are mixed with concentrates of certain phosphorus-containing compounds, the mixture is processed to granules and these granules are subjected to solid-phase postcondensation to give high molecular weight polyamides.

Inventors

• 👤 Hans-Detlef Dr. Heinz
• 👤 Helmut Schulte
• 👤 Hans-Josef Dr. Buysch

Bibliographic Details