Polyethylene glycol/polycation block copolymers
US7780957B2 · kind B2 · utility
10Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides block copolymers formed of poly(ethylene glycol) segments and poly(amino acid derivative) segments having side chains of at least one kind of specific amine residue. The invention also provides polyion complexes of such copolymers with polynucleotides and the like. These block copolymers are useful as carriers for in vivo delivery of active substances such as DNA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.