Patent No. EP3559084 (titled "Poly(Ether Ketone Ketone) Polymers, Corresponding Synthesis Methods And Polymer Compositions And Articles Made Therefrom") was filed by Solvay Specialty Polymers USA on Dec 19, 2017. The application was issued on Oct 16, 2024.
A method for synthesizing poly(ether ketone ketone) (PEKK) polymers with improved processability. The method involves selectively controlling the relative amounts of reactants during synthesis, particularly the ratio of 1,3-bis(benzoyl) monomers to 1,4-bis(benzoyl) monomers, to produce PEKK polymers with lower melt viscosities compared to traditional PEKK polymers. The controlled synthesis enables the production of PEKK polymers with reduced melt viscosities, enabling improved processability for applications such as medical devices and aerospace components.

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