Porous bioabsorbable polyesters
US4702917A · kind A · utility
97Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Nov 18, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polylactones blended with a polyether and then shaped are leached with aqueous solution of an organic solvent such as alcohol or acetone to elute selectively the polyether and form interconnected pores within the shaped polylactone. The result is a shaped article suitable for use a reservoir for the controlled release of high molecular weight drugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.