Preparing polyamides by anionic polymerization of lactams
AssigneeCeskoslovenska akademie ved
InventorsZbynek Bukac, Jan Sebenda
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Abstract
A method of preparing polyamides by anionic polymerization of cyclic lactams which comprises polymerizing at least one such lactam in the presence of at least one co-catalyst selected from the group consisting of N-substituted 1,3-oxazines, 1,3-thiazines, trioxopiperidines and thiodioxopiperidines.
Claims1
The method of preparing solid polyamides by anionic polymerization of cyclic lactams containing at least 4 atoms in a ring which comprises polymerization of at least one such lactam in the presence of a cocatalyst having the formula ##EQU1## wherein R is alkyl having 1 to 18 carbon atoms, alkenyl having 1 to 18 carbon atomes or arloweralkyl, R.sub.1 is R, aryl, diloweralkylaminoaryl, lower arkoxyaryl.
Dependencies are inferred from the claim text.