| http://www.w3.org/ns/prov#value | - After the reaction, alcohol such as methanol may be added to thereaction mass to react the unreacted isocyanate, and the obtained reactant may be refined by a conventional method, thereby obtaining the desired urethane acrylate.In the above composition A, the mixing ratio of the organic polar solvent is usually 100 to 1200 parts by weight, preferably 200 to 900 parts by weight based on 100 parts b
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