Catalyst for the production of polyols having lower amounts of high molecular weight tail
US9562134B2 · kind B2 · utility
1Cited by
30References
13Claims
0Family size
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Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jan 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to novel double metal cyanide catalysts and to a process for the production of these double metal cyanide catalysts. These DMC catalysts can be used to prepare polyoxyalkylene polyols which have low amounts of high molecular weight tail compared polyoxyalkylene polyols prepared from DMC catalysts of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.