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US 12,104,015 B2Granted
Method for the synthesis of polyethers
AssigneesUniversidad Del Pais Vasco, Basque Center for Macromolecular Design and Engineering, Polymat Fundazioa
InventorsDavid Mecerreyes Molero, Andere Basterretxea Gorostiza, Elena Gabirondo Amenabar, Haritz Sardon Muguruza
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Abstract
A method for the preparation of polyethers is provided, the method using a protic ionic salt formed by the combination of a Bronsted acid and a Bronsted base, as well as to the polyethers obtained using the method.
Claims19
A method for preparing a polyether, comprising the steps of:
- a) mixing at least one optionally substituted and optionally polymeric alcohol comprising at least two terminal hydroxyl groups with a protic ionic salt formed by the combination of a Brønsted acid and a Brønsted base, wherein the molar proportion of the protic ionic salt with respect to the total amount of moles of the alcohol is between 1 to 15%;
- b) heating the mixture obtained in step (a) at a temperature comprised between 100° C. and 300° C.
Dependencies are inferred from the claim text.