Process for the preparation of alkylene glycols

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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Reexamination Certificate

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07453015

ABSTRACT:
A process for the conversion of an alkylene oxide to the corresponding alkylene glycol in the presence of a catalytic composition, carbon dioxide and water, wherein the catalytic composition comprises a halide, a metalate and optionally a macrocyclic chelating compound.

REFERENCES:
patent: 4160116 (1979-07-01), Mieno et al.
patent: 4283580 (1981-08-01), Odanaka et al.
patent: 4307256 (1981-12-01), Cipriani et al.
patent: 4314945 (1982-02-01), McMullen et al.
patent: 4786741 (1988-11-01), Sachs
patent: 4982021 (1991-01-01), Best et al.
patent: 5138073 (1992-08-01), Harvey
patent: 5488184 (1996-01-01), Reman et al.
patent: 6080897 (2000-06-01), Kawabe
patent: 6124508 (2000-09-01), Van Kruchten
patent: 6153801 (2000-11-01), Van Kruchten
patent: 2005/0014980 (2005-01-01), Van Hal et al.
patent: 2007/0179303 (2007-08-01), Van Kruchten et al.
patent: 156449 (1985-03-01), None
patent: 1034158 (2000-09-01), None
patent: 56-092228 (1981-07-01), None
patent: 56092228 (1981-07-01), None
patent: 56-128778 (1981-10-01), None
patent: 57-106631 (1982-07-01), None
patent: 59-013741 (1984-01-01), None
patent: 2001/151711 (2001-06-01), None
patent: 2001/151713 (2001-06-01), None
Notice of Allowance for U.S. Appl. No. 11/461,325 dated Apr. 21, 2008.
Kasuga, K. et al. “The fixation of carbon dioxide with 1,2-epoxypropane catalyzed by alkali-metal halide in the presence of a crown ether”, Inorganica Chimica ACTA, vol. 257, 1997, pp. 277-278.
Aldrich: Handbook of Fine Chemicals and Laboratory Equipment. 15-Crown 5 entry and Material Data Safety Sheet. Aldrich Catalogue. Handbook of Fine Chemicals, 2006.
Rokicki et al, Cyclic Carbonates Obtained by Reactions of Metal Carbonates with Epihalohydrins >>, Bulletin of the Chemical Society, Japan, Tokyo, vol. 57, No. 6, 1984, pp. 1662-1666.
Abbas-Alli G. Shaikh and Swaminathan Sivaram, “Organic Cabonates”, Chem. Rev., 1996, 96, pp. 951-976.

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