Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...
Reexamination Certificate
2006-06-02
2010-10-12
Carr, Deborah D (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Fatty compounds having an acid moiety which contains the...
C564S025000, C564S026000
Reexamination Certificate
active
07812185
ABSTRACT:
A cross-metathesis process for preparing an α,ω-functionalized olefin, such as methyl 9-decenoate, and an α-olefin having three or more carbon atoms, such as 1-decene. The process involves contacting in a first reaction zone an α-functionalized internal olefin, such as methyl oleate, and an α-olefinic monomer having three or more carbon atoms, such as 1-decene, with a first metathesis catalyst to prepare an effluent stream containing the α,ω-functionalized olefin, such as methyl 9-decenoate, an unfunctionalized internal olefin, such as 9-octadecene, unconverted reactant olefins, and optionally, an α,ω-difunctionalized internal olefinic dimer, such as dimethyl 9-octadecen-1,18-dioate; separating said effluent streams; then contacting in a second reaction zone the unfunctionalized internal olefin with ethylene in the presence of a second metathesis catalyst to obtain a second product effluent containing the α-olefinic monomer having three or more carbon atoms; and cycling a portion of the α-olefinic monomer stream(s) to the first zone.
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Burdett Kenneth A.
Mokhtarzadeh Morteza
Timmers Francis J.
Carr Deborah D
Dow Global Technologies Inc.
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