High glass transition temperature absorbable microspheres
US8580307B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 4, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Absorbable microspheres comprising a copolymer formed from greater than 80 to about 99 mole percent D,L-lactide, L(−)-lactide, D(+)-lactide, or meso-lactide and combinations thereof, and about 1 to less than 20 mole percent of a different second monomer selected from the group consisting of p-dioxanone and trimethylene carbonate and combinations thereof, said microspheres having a particle size ranging from about 5 to 2000 microns. Also described herein are formulations comprising such absorbable microspheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.