Patent ID: 6013758
Filing Date: 2000-01-11
Classification: C08G

Abstract:
A method for producing a catalytically-acting liquid system to initiate and perform anionic lactam polymerization, whereinin at least one liquid, polar, aprotic solvating agent (S), which will not undergo a condensation reaction,a composition is formed which at the same time acts as a catalyst and an activator,by variation of temperature, under inert gas atmosphere and with exclusion of moisture by the steps ofa. dissolving at least one lactam (L) in the solvating agent (S),b. adding at least one strong base (B) and reacting it with the at least one lactam (L) to form lactamate,c. adding at least one activator (A) and reacting it with the lactamate,d. cooling down the reaction product.