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US 11,530,188 B2Granted
Catalysts for making oxazolidinone materials
AssigneeHuntsman International LLC
InventorsHugo Verbeke, Elisabeth Els Mercier, Lies Bonami, Peter Karel Joris Bosman, Giacomo Giannini
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Abstract
A catalyst composition comprising at least a catalyst compound selected from multi metal cyanide compounds for the selective production of oxazolidinone compounds by reacting an isocyanate compound with an epoxide compound and oxazolidinone comprising materials obtained using said catalyst compound.
Claims7
A method for the production of oxazolidinone compounds, said method comprising combining and mixing at a temperature in the range 130-200° C. at least following compounds to form a reactive mixture:
- an isocyanate composition comprising at least one isocyanate compound;
- an epoxide composition comprising at least one epoxide compound;
- an oxazolidinone catalyst composition comprising at least an oxazolidinone catalyst compound selected from multi metal cyanide compounds corresponding to the formula
- Zn3[Co(CN)6]2.fZnCl2.eL.hH2O [II]
- wherein
- L=tBuOH or 1,2-dimethoxyethane
- e is the coordination number of the ligand or 0,
- f is a fraction or integer greater than or equal to 0, and
- h is a fraction or integer greater than or equal to 0.
6 more elements
Dependencies are inferred from the claim text.