| 摘要 |
New catalyst comprises a double metal cyanide (I) and an alcohol, aldehyde, ketone, ether, ester, amide, urea, nitrile or sulfide ligand and optionally another complex-forming component (II). New catalyst comprises a double metal cyanide of formula (I), an alcohol, aldehyde, ketone, ether, ester, amide, urea, nitrile or sulfide ligand and optionally another complex-forming component (II), namely a polyether, polyester, polycarbonate, polyoxyalkylene sorbitan ester, polyoxyalkylene glycidyl ether, polyacrylamide, acrylamide/acrylic acid copolymer, polyacrylic acid, acrylic acid/maleic acid copolymer, polyacrylonitrile, polyalkyl (meth)acrylate, polyvinyl (m)ethyl ether, polyvinyl acetate, polyvinyl alcohol, polyvinylpyrrolidone, vinylpyrrolidone/acrylic acid copolymer, polyvinyl methyl ketone, poly(4-vinylphenol), acrylic acid/styrene copolymer, oxazoline polymer, polyalkyleneimine, maleic acid or anhydride copolymer, hydroxyethyl cellulose, polyacetal, glycidyl ether, glycoside, polyol carboxylate, bile acid (or salt, ester or amide thereof), cyclodextrin, phosphorus compound, alpha ,beta -unsaturated carboxylic acid ester or ionic surfactant. M[M'(CN) 4] (I) M, M' : Zn, Fe, Ni, Mn, Co, Sn, Pb, Sr, Cu, Cd, Hg, Pd, Pt, V, Mg, Ca or Ba, all in divalent form. Independent claims are also included for: (1) producing polyether polyols by polyaddition of alkylene oxides to starter compounds having active hydrogen atoms in the presence of a catalyst as above; (2) polyether polyol produced as above; (3) polyether polyol produced by polyaddition of alkylene oxides to starter compounds having active hydrogen atoms, with a double bond content of no more than 2 mmole/kg. |
