HOMOGENEOUS EXTRUDED PRODUCT FROM THERMOPLASTICALLY PROCESSED POLYURETHANES BASED ON POLYETHERDIOLS FROM AMBER ACID AND 1,3-PROPANEDIOL Russian patent published in 2017 - IPC C08G18/66 C08G18/10 C08G18/42 C08G18/70 C08J5/18 

FIELD: chemistry.

SUBSTANCE: present invention relates to the use of thermoplastically processed polyurethane elastomers to obtain extrusion products. Shore hardness of the said elastomers is from 65 to 95. Polyurethane elastomers are obtained by reacting one or more straight-chain polyester diols with a functionality of 1.8-2.2, one or more organic diisocyanates, one or more diols with a molecular weight of 60 to 350 g/mol. The molar ratio NCO: OH is from 0.9: 1 to 1.1: 1. The straight-chain said polyesterdiols are fully or partialy of amber acid and 1,3-propanediol and have an average molecular weight of from 750 to 1800 g/mol.

EFFECT: document describes a homogeneous extruded product of a thermoplastically processed polyurethane based on polyetherdiols of amber acid and 1,3-propanediol.

9 cl, 2 tbl, 6 ex