Method for producing polyamide by coordinated anionic ring-opening polymerization, and polyamide produced thereby
US11718713B2 · kind B2 · utility
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8References
12Claims
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Key dates
| Filing date | Oct 29, 2018 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jun 25, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for producing a polyamide by coordinated anionic ring-opening polymerization and a polyamide produced thereby, wherein metal alkoxide as an initiator and metal hydride as a catalyst are added to enable polymerization having a narrow molecular weight distribution and uniform molecular weight within a short polymerization reaction time at a low temperature, without a separate vacuum process, as compared with an existing polymerization method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.