Interlinked solid polyethylene glycols and copolymers thereof
US6861503B2 · kind B2 · utility
18Cited by
0References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/3322
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed primarily to an interlinked crystalline solid polyethylene glycol composition (I-PEG) having a molecular weight of at least 20 kDa and a melting temperature of at least 40° C. and its use as an absorbable device having hydrolabile ester or carbonate interlinks that allow in vivo dissociation of the interlinked chain into excretable, low molecular weight PEG segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.