FIELD: chemistry.
SUBSTANCE: invention relates to a method for producing ethylene glycol dimethacrylate, involving transesterification of an ester of methacrylic acid with ethylene glycol, where methacylate is formed by an alcohol containing 1-4 carbon atoms, at temperature ranging from 90°C to 130°C in the presence of lithium chloride in a combination with another chemically active compound as a catalyst and a polymerisation inhibitor and separating alcohol released from the ester of methacrylic acid used, the other chemically active compound used being lithium amide (LiNH2).
EFFECT: method according to the invention enables to obtain ethylene glycol dimethacrylate at a very low cost and having very high purity.
22 cl, 7 ex
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Authors
Dates
2013-02-27—Published
2008-05-08—Filed