METHOD OF OBTAINING POLYKETOXIMES Russian patent published in 2015 - IPC C08G73/00 C07C251/32 C07C249/08 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a method of obtaining polyketoximes. Described is the method of obtaining polyketoximes by the interaction of aliphatic polyketone of an alternating structure, obtained by the catalytic copolymerisation of carbon oxide and olefin or a mixture of olefins in the suspension mode with a reagent - a source of hydroxylamine, characterised by the fact that as the solvent used is a highly polar aprotic organic solvent or its mixture with water, with the process being carried out with polyketone, which has a molecular weight from 1000 to 700000 g/mol, the polyketone is introduced into the reaction basing on the weight ratio polyketone:solvent in the interval 1:1-10, the time of the reaction is 1-2 hours, with hydroxylamine hydrochloride, processed with sodium hydroxide, being used as a source of hydroxylamine.

EFFECT: increased range of molecular weights of applied polyketones, reduction of the weight ratio of the polyketone to the solvent, reduction of the synthesis duration.

2 cl, 1 dwg, 1 tbl, 7 ex