US 2006/0223972 A1 · Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols

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. The multimetal cyanide compound has an ordered structure defined by a cationic catalytic center and an anionic backbone with the anionic backbone spatially arranged about the cationic catalytic center. The anionic backbone is modified with a supplemental anionic spacer to affect the spatial arrangement and catalytic activity of the cationic catalytic center. The supplemental anionic spacer is incorporated into the multimetal cyanide compound to establish the general formula, M1a[M2b(CN)cMd3Xe]f, wherein M1, M2, and M3 are various metal ions and X is the supplemental anionic spacer. An H-functional initiator, an alkylene oxide, and CO2 are reacted in the presence of the modified multimetal cyanide compound to form the polyethercarbonate polyol.

Claims22

Dependent claims

A method of forming a polyethercarbonate polyol, said method comprising the steps of:

providing a catalyst comprising a multimetal cyanide compound having an ordered structure defined by a cationic catalytic center and an anionic backbone spatially arranged about the cationic catalytic center;
modifying the anionic backbone of the multimetal cyanide compound to affect the spatial arrangement and catalytic activity of the cationic catalytic center;
and
reacting an H-functional initiator, an alkylene oxide, and CO2 in the presence of the modified multimetal cyanide compound to form the polyethercarbonate polyol.

1 more element

Dependencies are inferred from the claim text.

Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols

Life of this patent

Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols

Life of this patent

Abstract

Claims22