Patent ID: 8759551

Claim:
A process for preventing a runway reaction in a production of an epoxy (meth)acrylate, comprising causing a mixed liquid of a (meth)acrylic acid and a bisphenol epoxy resin to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the carboxyl group of (meth)acrylic acid with the epoxy group of the bisphenol epoxy resin, the tubular microchannel in the reaction device having a space size making a fluid cross-sectional area, through which the mixed liquid passes densely, of from 0.1 to 4.0 mm 2 , and the process comprising heating the heat-conducting reaction device to a temperature of from 170 to 220° C., reacting the mixed liquid to provide a Reynolds number of a reaction liquid passing through the tubular microchannel in a range of from 0.4 to 100, and after completing reaction, cooling continuously a reaction product discharged from the heat-conducting reaction device.