Process for preparing highly active double metal cyanide catalysts and their use in the synthesis of polyether polyols
US9605111B2 · kind B2 · utility
2Cited by
0References
15Claims
0Family size
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Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Nov 18, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/845
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to polyether polyols prepared by a polymerization reaction using said DMC catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.