Method for producing ethylene glycol dimethacrylate
AssigneeEvonik Roehm GmbH
InventorsJoachim Knebel, Thorben Schuetz, Guido Protzmann, Harald Trauthwein, Guenther Lauster, Thomas Kehr, Gerhard Koelbl, Guenter Westhaeuser
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Abstract
The present invention relates to a process for preparing ethylene glycol dimethacrylate, which comprises transesterification of ethylene glycol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising lithium amide (LiNH2) and lithium chloride (LiCl) is used as catalyst. The process of the invention makes it possible to prepare ethylene glycol dimethacrylate particularly inexpensively and in a very high purity.
Claims26
A process for preparing ethylene glycol dimethacrylate, comprising transesterifying ethylene glycol with an ester of methacrylic acid a reaction mixture comprising at least one catalyst, wherein said catalyst comprises lithium amide (LiNH2) and lithium chloride (LiCl).
Dependencies are inferred from the claim text.