Method for making polyethylene glycol carbonates
US7816484B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/266
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for preparing a polyalkylene glycol carbonate is disclosed comprising reacting a hydroxyl functional polyalkylene glycol and a reagent selected from carbonates and chloroformates in the presence of an aromatic solvent and an amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.