Process for preparing highly pure cyclic esters
US4727163A · kind A · utility
68Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Oct 29, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D319/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for making highly pure cyclic esters by heating a copolymer of .alpha.-hydroxy acid or its ester on a thermally stable polyether core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.