Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2003-08-08
2009-12-29
Shiao, Rei-tsang (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07638636
ABSTRACT:
Novel phosphonium and imidazolium salts and methods for preparing them are disclosed. The novel phosphonium and imidazolium compounds are useful as polar solvents and have the general formula (I): Q+X−wherein Q+is formula (a) or formula (b); and X−is formula (c), formula (d) or formula (e); and wherein: each of R1, R2, R3, R4, R5, R9, R10, R11, R12, and R13is independently a hydrocarbyl group; each of R6, R7, and R8is independently a hydrogen or hydrocarbyl group.
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Baumann Douglas
Hillhouse John H.
Robertson Allan J.
Zhou Yuehui
Bell Charles E.
Cytec Technology Corp.
Shiao Rei-tsang
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