Elastomeric and degradable polyanhydride by step-growth thiol-ene photopolymerization
US10280263B1 · kind B1 · utility
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Key dates
| Filing date | Mar 25, 2010 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/045
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present the invention is directed to a process and the new materials that are biodegradable for medical use, particularly for drug delivery, therapeutic devices and gene therapy/delivery. The invention illustrates a method of producing a degradable material using polymers made from thiol compounds and alkene/alkyene compounds, wherein one of these compounds contains one or more anhydride groups; and using a thiol-ene step-growth polymerization process, initiated by a free radical initiator. The polymerization process is initiated through photochemical, redox or thermal means, or any combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.