METHOD OF OBTAINING CATALYST OF EPSILON-CAPROLACTAM POLYMERISATION Russian patent published in 2014 - IPC B01J37/08 B01J31/12 C07D201/14 C08G69/20 

FIELD: chemistry.

SUBSTANCE: described is a method of obtaining a catalyst of an anionic ε-capralactam polymerisation by its direct interaction with an alkali metal compound in the presence of an aprotic solvent, removed after reaction completion, with a reaction being carried out at a temperature not lower than 60°C, with hydroxides or their combinations being applied as alkali metal compounds, and as active diluents - aliphatic hydrocarbons with the number of carbon atoms in the interval 5-9 or their mixtures, which form with a reaction product - water heterogenic azeotropes, removed in the course of conversion.

EFFECT: simplification and intensification of the catalyst obtaining process, increase of the catalyst activity.

2 cl, 1 tbl, 3 ex