Patent · US Active

Method of working up mixtures comprising imidazolium salts

US9586906B2 · kind B2 · utility

0Cited by
2References
3Claims
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Key dates

Filing dateDec 8, 2008
Grant dateMar 7, 2017
Priority date—
Expiry dateMar 17, 2033

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D233/58
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Method of lightening the color of mixtures comprising imidazolium salts or imidazoles, wherein the mixtures are treated with an oxidant.

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