Method for producing highly-branched glycidol-based polyols
AssigneeBayer Aktiengesellschaft
InventorsAlexander Sunder, Rolf Mulhaupt
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Abstract
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 colourless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.
Claims5
Polyols based on glycidol and having a degree of polymerisation of 1 to 300, a polydispersity of less than 1.7 and a content of branched units, based on the total monomeric structural units and determined by 13C-NMR spectroscopy, of 10 to 33 mol %.
Dependencies are inferred from the claim text.