Water-swellable polymers
US8557281B2 · kind B2 · utility
56Cited by
287References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Aug 13, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2210/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical controlled release composition in solid dosage form is provided which comprises (I) a water-swell able linear polymer obtainable by reacting together: (a) a polyethylene oxide; (b) a C5 to C20 diol; and (c) a diisocyanate; and (II) a releasable pharmaceutically active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.