Polyurethane elastomers based on heterocyclic polyester diols

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 75R, 260 75N, C08G 1834, C08G 6316

Patent

active

040910008

ABSTRACT:
A process for producing polyurethane elastomers in which a polyester diol is formed with a molecular weight between 3000 and 30,000 and is then reacted with a diisocyanate. ##STR1## wherein A is D, --(CH.sub.2) .sub.m O--.sub.n or ##STR2## B is --(CH.sub.2 --or --CH= CH-- and D is a bivalent residue formed by removing the hydroxyl group from one of the following diols:

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