Bayer Aktiengesellschaft

Alexander Sunder

Rolf M&uuml;lhaupt

This invention relates to a process for the preparation of highly-branched polyols by polymerisation of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colorless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7. The present invention also relates to polyols that comprise the reaction product of the polyols based on glycidol with one or more expoxide monomers. This invention also relates to a process for the preparation of these polyols.

Method for producing highly-branched glycidol-based polyols

This invention relates to as process for the preparation of highly-branched polyols by polymerization of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colorless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.

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Kö'ln, Germany

Alexander Sunder