Polyether ether ketone, composition, and sheet
US12091504B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 2, 2021 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Sep 2, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2371/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a polyether ether ketone, comprising a repeating unit represented by the following formula (1), satisfying one or both of the following conditions (A) and (B), and having a hydroxy group at one terminal or both terminals of a main chain of the polyether ether ketone: (A) a fluorine atom content a is less than 2 mg/kg; and (B) a chlorine atom content b is 2 mg/kg or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.