Sustained release composition using biobased biodegradable hyperbranched polyesters
US12030986B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2020 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | May 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2310/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a sustained release composition having hyperbranched polymers that are polyesters that are biobased and biodegradable, and that have at least one active ingredient, which composition delivers the active ingredient over time. These active ingredients can be a wide variety of compounds so long as they can covalently bind to the polymer or be encapsulated in the polymer in a manner that is released at the point of delivery, usually by acid hydrolysis or enzymatic bond scission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.