Patent ID: 8802809

Claim:
A method of production of cast polyamides comprising: adding an activator, in an amount of up to 5 wt %, to a first lactam melt at temperatures between 70 and 120° C., whereby an activator mixture is formed and homogenized, isolated after production, and optionally pelletized on a pelletizing belt or flaked on a flaking roll; adding a catalyst in an amount of up to 5 wt % to a second lactam melt at temperatures between 70 and 120° C., whereby a catalyst mixture is formed and homogenized and pelletized on a pelletizing belt or flaked on a flaking roll, and subsequently melting and mixing together said activator mixure and said catalyst mixture, thereby forming a melt mixture, and polymerized the melt mixture in a mould at temperatures between 80 and 160° C.