Method of catalytically preparing tetrahydrofuran/alkylene oxide polymerizates using a montmorillonite clay as the catalyst
AssigneeE. I. Du Pont de Nemours and Company
InventorThomas W. Del Pesco
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Abstract
A polymerizate of THF and an alkylene oxide is prepared by catalytic polymerization, using as a catalyst an acid-activated montmorillonite clay having a pore volume of 0.4-0.8 cubic centimeter per gram, a surface area of 220-260 square meters per gram and an average pore diameter of 0.1-0.3 micron.
Claims3
In a process for catalytically preparing a tetrahydrofuran/alkylene oxide polymerizate, the improvement comprising using as the catalyst an acid-activated montmorillonite clay having a pore volume of 0.4-0.8 cubic centimeter per gram, a surface area of 220-260 square meters per gram, and an average pore diameter of 0.1-0.3 micron.
Dependencies are inferred from the claim text.