Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-01-02
2007-01-02
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S543000, C252S364000
Reexamination Certificate
active
11107440
ABSTRACT:
The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring by a variable length alkyl spacer.
REFERENCES:
patent: 6818593 (2004-11-01), Manzer
Robin D. Rogers et al., “Ionic Liquids—Solvents of the Future?”, Science, Oct. 31, 2003, pp. 792-793, vol 302, www.sciencemag.org.
D. Demberelnyamba et al., “Ionic liquids based on N-vinyl-y-butyrolactam: potential liquid electrolytes and green solvents”, Chem. Commun., 2002, pp. 1538-1539, www.rsc.org/chemcomm.
Harmer Mark Andrew
Junk Christopher P.
Manzer Leo Ernest
Coppins Janet L.
Deitch Gerald E.
E. I. du Pont de Nemours and Company
Saeed Kamal A.
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