Stabilizing polypropiolactone by end-capping with end-capping agents
US11814478B2 · kind B2 · utility
1Cited by
14References
3Claims
0Family size
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Key dates
| Filing date | Jun 13, 2019 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/785
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided herein are methods and systems for producing a thermally stable polylactone polymer comprising chain terminating the polymer with an end-capping agent to prevent scission of the polymer. Also provided is a thermally stable polylactone polymer wherein the polymer has a first end and a second end, wherein at least one of said first and second ends terminate in an end-capping agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.