C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 36/06 (2006.01) C07C 213/06 (2006.01) C07C 217/10 (2006.01) C08C 19/38 (2006.01) C08F 8/04 (2006.01) C08F 8/32 (2006.01)
Patent
CA 2114310
Highly saturated, highly aminated alkoxylated polymers may be reliably made by an improved process involving the steps of (1) polymerizing one or more unsaturated hydrocarbons to form a liquid polymer, where at least one of the unsaturated hydrocarbons is butadiene; (2) providing the liquid polymer with terminal hydroxyl groups; (3) alkoxylating the hydroxylated liquid polymer with one or more alkylene oxides having at least three carbon atoms to provide secondary terminal hydroxylgroups; (4) simultaneously aminating and hydrogenating the alkoxylated liquid polymer to produce an essentially saturated, aminated, alkoxylated liquid polymer in the presence of hydrogen and ammonia and a catalyst. The catalyst preferably contains nickel as the single greatest component, with smaller amounts of copper, chromium and molybdenum. Excesses of hydrogen and ammonia are used in the final step.
Cuscurida Michael
Knifton John F.
Smart & Biggar
Texaco Chemical Company
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