Poly (ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom
US12202940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2023 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Sep 1, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described herein are poly(ether ketone ketone) (“PEKK”) polymers having improved processability. It was surprisingly discovered that by selectively controlling the relative amounts of reactants during the synthesis, PEKK polymers having unexpectedly lower melt viscosities can be obtained. More particularly, by selectively controlling the relative amounts of monomers used to form recurring units of the PEKK polymer, in conjunction with selective control of other reaction components, the resulting PEKK polymers had reduced viscosities, relative to PEKK polymers synthesized by using tradition reaction schemes (“traditional PEKK polymers”). By providing PEKK polymers with lower melt viscosities, the PEKK polymers described herein have improved processability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.