METHOD OF PRODUCING POLYMERS USING 1,6-HEXANEDIOL CONTAINING LESS THAN 500 PPM OF ALDEHYDE Russian patent published in 2015 - IPC C08G63/16 C08G18/34 C08G18/72 

FIELD: chemistry.

SUBSTANCE: disclosed is a method of producing a polymer, which includes reacting 1,6-hexanediol with dicarboxylic acids or diisocyanates in the presence of at least one catalyst, wherein the 1,6-hexanediol used is 1,6-hexanediol which, after production thereof by hydrogenation, is subjected to distillation at least once, where the molar ratio of oxygen to 1,6-hexanediol is less than 1:100, and which, during the distillation process, contains ≤5 ppm of catalytically active components and less than 500 ppm of aldehyde.

EFFECT: obtaining polymers having a colour index of less than 150 units APHA turbidity.

8 cl, 6 ex