POLYMERIC MATERIAL
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United States of America Patent
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Issued Date -
Jul 21, 2016
app pub date -
Sep 26, 2014
filing date -
Sep 27, 2013
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Abstract
Polyetheretherketone (PEEK) may be prepared by polycondensation of a single monomer (4-fluoro-4′-(4-hydroxyphenoxy) benzophenone) in diphenylsulphone (DPS) solvent and in the presence of sodium carbonate and potassium carbonate. The process can be used to produce high quality, relatively light coloured polymers having a lower Tm than those produced using a standard PEEK process.
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