Double metal cyanide catalysts for producing polyether polyols

Details Double metal cyanide catalysts for producing polyether polyols Double metal cyanide catalysts for producing polyether polyols

2005-07-19

2005-07-19

Wood, Elizabeth D. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

C502S150000, C502S152000, C502S153000, C502S155000, C502S156000, C502S159000, C502S162000, C502S167000, C502S170000, C502S172000

Reexamination Certificate

active

06919293

ABSTRACT:
This invention relates to novel double metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides onto starter compound comprising active hydrogen atoms, wherein the catalyst contains a) double metal cyanide compounds, b) organic complex ligands other than c) and c) two or more complex-forming components from the classes of compounds comprising functionalised polymers, glycidyl ethers, glycosides, carboxylic acid esters of polyhydric alcohols, bile acids or the salts, esters or amides thereof, cyclodextrins, phosphorus compounds, α,β-unsaturated carboxylic acid esters or ionic surface- or interface-active compounds. The catalysts according to the invention exhibit greatly increased activity in polyether polyol production.

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