Process for producing lactone polyesters
US4289873A · kind A · utility
15Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1979 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Nov 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/823
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In a process for producing a lactone polyester which comprises ring-opening polymerization of a lactone in the presence of a metal containing organic compound as a catalyst, the improvement wherein said compound is an alcoholate, chelate or organic acid salt of vanadium or molybdenum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.