| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for producing a refined resin, capable of recovering highly refined resin in a low cost by subjecting a thermoplastic polyester resin waste to refining treatment in a simple treating step under mild conditions. SOLUTION: This method for producing a refined thermoplastic polyester resin comprises bringing a crushed material of thermoplastic polyester resin waste into contact with a mixed solution of an alkali with an alcohol and removing 0.5-15 wt.% of total amount of the crushed material as impurities and then recovering the crushed material of the refined resin.</p> |
