Melt preparation of polyamide with additive combination

US5026818A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Detlef Heinz · Krefeld, DE
• Rolf-Volker Meyer · Krefeld, DE
• Helmut Schulte · Krefeld, DE
• Franz X. Zimmerman · Erie, US

Key dates

• Filing date: Sep 5, 1989
• Grant date: Jun 25, 1991
• Expiry date: Sep 5, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G69/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to high molecular weight (co)polyamides and to a process for the accelerated production of polyamides during melt polycondensation using a combination of aminocaprolactam (ACL) and/or lysine components and polycarboxylic acids and known catalysts and also, if desired, for the accelerated solid-phase post-condensation of the catalyst-containing (co)polyamides and to the polyamides produced by the processes.