Dynamit Nobel Aktiengesellschaft

Helmut Wemheuer

Norbert Vollkommer

Gerhard Schade

A process for preparing a poly-(alkylpentamethyleneterephthalamide) which comprises heating an aqueous solution of the corresponding nylon salt and still water soluble low molecular weight oligomer, the mixture of nylon salt and oligomer having 20 to 50 mole percent carbonamide groups and 50 to 80 mole percent salt groups, from a temperature at least as low as 150.degree. C. at atmospheric pressure up to a polycondensation temperature of at least 250.degree. C.

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Bochum-Langendreer, Germany

Helmut Wemheuer