Poly(3-hydroxyalkanoates)
US5281691A · kind A · utility
38Cited by
21References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jun 19, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.