Method for producing aliphatic or partially aromatic polyamides, said method comprising a solid-phase polymerization process

US9701790B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Schmidt · Bonn, DE
• Florian Richter · Mannheim, DE
• Joachim Clauss · Scheinfeld, DE
• Axel Wilms · Bad Dürkheim, DE
• Gad Kory · Gaiberg, DE
• Arnold Schneller · Mainz, DE
• Achim Stammer · Freinsheim, DE
• Volker Rauschenberger · Eisenberg, DE
• Stefan Schwiegk · Hamburg, DE

Key dates

• Filing date: Jun 11, 2014
• Grant date: Jul 11, 2017
• Expiry date: Jun 11, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L77/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing an aliphatic or semiaromatic polyamide, in which a polyamide prepolymer is subjected to a solid state polymerization.