Solid pharmaceutical preparations containing copolymers based on polyethers combined with poorly water-soluble polymers
US9555002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2010 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to dosage forms which contain preparations of poorly water-soluble substances in a polymer matrix of polyether copolymers, said polyether copolymers being obtained by the radically initiated polymerization of a mixture from 30 to 80% by weight of N-vinyl lactam, 10 to 50% by weight of vinyl acetate and 10 to 50% by weight of a polyether, and at least one poorly water-soluble polymer, the poorly water-soluble substance being present in the polymer matrix as an amorphous substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.