Zinc-containing solid catalyst, process of preparing same and process for preparing polyalkylene carbonate
US4981948A · kind A · utility
21Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Aug 3, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
According to the present invention, a zinc-containing solid catalyst prepared by contacting zinc oxide with an organic dicarboxylic acid in the presence of or in the absence of an organic solvent under a mechanical pulverization treatment is provided. The catalyst is in a good pulverized state and exhibits a high catalytic activity for polymerization of carbon dioxide with an epoxide to obtain a polyalkylene carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.