Catalytic process for the preparation of polyols
US4962237A · kind A · utility
14Cited by
7References
23Claims
0Family size
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Inventor
Key dates
| Filing date | Jan 2, 1990 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Jan 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/03
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A catalytic process for polymerizing epoxides using active hydrogen initiators forming polyols having low unsaturation levels and high primary hydroxyl levels. The catalysts useful in this process are prepared from catalyst precursors exemplified by hydrotalcite. This process is more reactive with less acidic active hydrogen initiators. The polyols can be used in urethanes without removal of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.