Patent · US Active

N-substituted pyrrolidonium ionic liquids

US8138354B2 · kind B2 · utility

3Cited by

16References

8Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Thomas Foo · Rockville, US
Mark Andrew Harmer · Kennett Square, US
Keith W. Hutchenson · McKeesport, US
Christopher P. Junk · Wilmington, US
Berlyn R. Mellein · Wilmington, US
Aaron Minter · Wilmington, US

Key dates

Filing date	Dec 4, 2008
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Jan 22, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D207/27
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I:wherein:

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