| http://www.w3.org/ns/prov#value | - When the components A and B are copolymerized or the component A is monopolymerized, 5 to 100 parts by weight of an aromatic hydrocarbon such as benzene, toluene, or xylene can be used as a solvent with respect to 100 parts by weight of the component A or a mixture of components A and B. After polymerization, the solvent is removed by a conventional method such as distillation.
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