Process for the preparation of amphiphilic poly(N-vinyl-2-pyrrolidone) block copolymers
US7838600B2 · kind B2 · utility
4Cited by
4References
23Claims
0Family size
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Key dates
| Filing date | Sep 16, 2008 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 16, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.