Solid pharmaceutical preparations containing copolymers based on polyethers combined with poorly water-soluble polymers
US10328150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | May 26, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dosage forms comprising preparations of slightly water-soluble active substances in a polymer matrix of polyether copolymers, the polyether copolymers being obtained by free radical polymerization of a mixture of from 30 to 80% by weight of N-vinyllactam, from 10 to 50% by weight of vinyl acetate and from 10 to 50% by weight of a polyether, and of at least one slightly water-soluble polymer in which the slightly water-soluble active substance is present in amorphous form in the polymer matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.