Patent · US Active

Reactive processing of polyaryletherketones

US11084899B2 · kind B2 · utility

0Cited by
3References
7Claims
0Family size

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Key dates

Filing dateSep 14, 2018
Grant dateAug 10, 2021
Priority date—
Expiry dateSep 14, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G2650/40
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Melt stable polyaryletherketoneketone are prepared from a reactive, lower molecular weight polyaryletherketoneketone having an ultraviolet absorbance at 455 nm of at least 0.185 when measured in 0.1% solution in dichloroacetic acid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.