| abstract |
The invention relates to new double metal cyanide (DMC) catalysts for productionnof polyether polyols by polyaddition of alkylene oxides to active onesnStarter compounds containing hydrogen atoms, the catalyst a)nDouble metal cyanide compounds, b) organic complex ligands other than c)nand c) two or more complex-forming components from the compound classesnof functionalized polymers, glycidyl ethers, glycosides, carboxylic acid estersnpolyhydric alcohols, bile acids or their salts, esters or amides,nCyclodextrins, phosphorus compounds, α, β-unsaturated carboxylic acid esters orncontains ionic surface or surface-active compounds. The inventionnCatalysts have a strong role in polyether polyol productionnincreased activity. |