Process for producing polyether ketone ketone
US10793669B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Aug 3, 2018 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Dec 15, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/164
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for the manufacture of polyether ketone ketone (PEKK), including: Further, a composition including at least 40 wt. % of 1,4-bis(4-phenoxybenzoyl)benzene-Lewis acid complex and an anhydrous aprotic solvent or solvent mixture, characterized in that it includes less than 1 wt. %, preferably less than 0.5 wt. % and in particular less than 0.1 wt. % of molecules including xanthydrol groups and its use for the manufacture of polyether ketone ketone.
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