C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 301/14 (2006.01) B01J 37/12 (2006.01) C08C 19/06 (2006.01) C08F 36/06 (2006.01) C08F 36/08 (2006.01)
Patent
CA 2414932
Disclosed is a process for preparing an epoxidized polyalkenylene having a number-average molar mass of between 500 and 50,000 g/mol and an epoxide oxygen content of between 1 and 25 percent by mass, which comprises reacting a polyalkenylene with from 15 to 90% strength hydrogen peroxide and a carboxylic acid having from 1 to 3 carbon atoms in the presence of a phosphonic acid or a derivative thereof as a catalyst but without further addition of an organic solvent or water. The catalyst is highly active and effective, dissolving poorly in the polymer but very readily in water. Therefore after the reaction, the catalyst and other compounds of the epoxidized polyalkenylene can be easily separated from the reaction mixture.
Andrejewski Werner
Berlineanu Andreas
Denkinger Peter
Freitag Werner
Ondruschka Bernd
Degussa Ag
Fetherstonhaugh & Co.
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