Degradable polymer structures from carbon dioxide and olefin and corresponding method
US12173116B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 8, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Feb 7, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/87
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of producing a degradable material comprising steps of hydrogenating 2-ethylidene-6-hepten-5-olide (EVL) by introducing hydrogen to the EVL in order to obtain modified EVL; combining the modified EVL with a catalyst to form a reaction mixture; and subjecting the reaction mixture to reaction conditions that will allow the modified EVL to react by ring-opening polymerization in the presence of the catalyst to form a product composition including polymeric-EVL, wherein the polymeric-EVL is hydrolytically degradable, wherein the reaction conditions include a reaction temperature of from −40° C. to 70° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.