Polytetrafluoroethylene co-polymer emulsions
US11642412B2 · kind B2 · utility
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7References
15Claims
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Key dates
| Filing date | Sep 6, 2018 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Sep 6, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure is directed to a class of fluorinated copolymers, such as PTFE copolymers, that can be dissolved in low toxicity solvents, such as Class III Solvents, and that enable the creation of stable water-in-solvent emulsions comprising the fluorinated copolymers dissolved in a low toxicity solvents and a hydrophilic agent (e.g., a therapeutic agent) dissolved in an aqueous solvent, such as water or saline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.