Basf Se Corporation

Bernd Hackel

Arnold Schneller

Achim Stammer

Joachim Clauss

Axel Wilms

Gad Kory

Volker Rauschenberger

Stefan Schwiegk

Christian Schmidt

Frank Niedermaier

The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.

Process for the continuous preparation of an aliphatic or partially aromatic polyamide

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Mutterstadt, Germany

Bernd Hackel