Patent ID: 8148567

Claim:
A process for continuously producing a urethane (meth)acrylate, comprising causing a mixed liquid of a compound (A) having a hydroxyl group and a (meth)acryloyl group and a compound (B) having an isocyanate group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the hydroxyl group of the compound (A) with the isocyanate group of the compound (B), 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 100 to 250° C., reacting the mixed liquid to provide a Reynolds number of a reaction liquid passing through the tubular microchannel in a range of from 0.2 to 300, and after completing reaction, cooling continuously a reaction product discharged from the heat-conducting reaction device.