Process for purification of waste polycarbonate-based resin and preparation method of monomer for synthesising recycled plastic, monomer for synthesising recycled plastic, recycled plastic, molded product using the same

Abstract

The present invention relates to a process for purification of waste polycarbonate-based resin, comprising: a first step of injecting and filtering a precoated solution comprising polycarbonate resin, filter aid, and organic solvent into a filter; a second step, after the first step, of injecting and filtering a waste polycarbonate resin solution comprising waste polycarbonate resin, filter aid, and organic solvent into the filter; and a third step of obtaining a purified polycarbonate resin solution that has passed through the filter of the first and second steps; and to a preparation method of monomer for synthesising recycled plastic using the same, a monomer for synthesising recycled plastic, recycled plastic, and a molded article.