Method of forming a polyether-carbonate polyol using a CO2-philic compound or substituent
AssigneeBASF SE
InventorsWerner Hinz, Jacob Wildeson, Edward Dexheimer
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Abstract
A method of forming a polyethercarbonate polyol enhances incorporation of CO2 into the polyethercarbonate polyol. The method provides a catalyst including a multimetal cyanide compound. An H-functional initiator, an alkylene oxide, and CO2 are reacted in the presence of the multimetal cyanide compound in a reactor. The method further provides a CO2-philic compound or a CO2-philic substituent. The CO2-philic compound and substituent enhance incorporation of the CO2 into the polyethercarbonate polyol and reduce formation of cyclic alkylene carbonates, such as cyclic propylene carbonate, which are undesirable byproducts.
Claims36
A method of forming a polyethercarbonate polyol, said method comprising the steps of:
- providing a catalyst comprising a multimetal cyanide compound;
- reacting a H-functional initiator, an alkylene oxide, and CO2 in the presence of the catalyst comprising the multimetal cyanide compound in a reactor to form the polyethercarbonate polyol;
- and
- providing a CO2-philic compound or a CO2-philic substituent.
A method as set forth in claim 11 wherein the step of providing the CO2-philic compound or the CO2-philic substituent comprises providing the CO2-philic compound into the first reaction phase.
A method of forming a polyethercarbonate polyol, said method comprising the steps of:
- providing a catalyst comprising a multimetal cyanide compound;
- reacting a H-functional initiator, an alkylene oxide, and CO2 in the presence of the catalyst comprising the multimetal cyanide compound in a reactor to form the polyethercarbonate polyol;
- and
- providing a fluorine-based compound.
A method of forming a polyethercarbonate polyol, said method comprising the steps of:
- providing a catalyst comprising a multimetal cyanide compound;
- reacting a H-functional initiator, an alkylene oxide, and CO2 in the presence of the catalyst comprising the multimetal cyanide compound in a reactor to form the polyethercarbonate polyol;
- and
- providing a CO2-philic substituent selected from the group of fluorine, a fluorine-based substituent, and combinations thereof.
Dependencies are inferred from the claim text.