PROCESS FOR THE PREPARATION OF POLYESTER POLYOLS

摘要

The invention relates to a process for the preparation of polyester polyols, to a process for the preparation of a polyurethane elastomer and to using such polyester polyols for the preparation of a polyurethane elastomer. The polyester polyols obtained by the process of the invention show no degradation due to hydrolysis and result to be substantially uncoloured and free from the catalyst.