Preparation of lactone polymers using double metal cyanide catalysts
US5032671A · kind A · utility
22Cited by
13References
20Claims
0Family size
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Key dates
| Filing date | Sep 4, 1990 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Sep 4, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/823
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Lactone monomers are polymerized using double metal cyanide compounds as catalysts to yield useful lactone polymers. Block or random copolymers of lactones and epoxides may also be prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.