| 摘要 |
The present invention relates to a method for decomposing a thermosetting resin to provide decomposed products, which can be easily separated, efficiently collected and recycled. Specifically, the present invention relates to a method for decomposing a thermosetting resin comprising a polyester moiety and a crosslinking moiety therewith to provide decomposed products to be collected and recycled, which comprises steps of: (A) decomposing the thermosetting resin by using of subcritical water in the presence of an alkali; (B) subjecting the decomposed products to a solid-liquid separation to provide an aqueous solution comprising a salt of a compound with an alkali, wherein the compound comprises an acid residue derived from the polyester moiety and a residue derived from the crosslinking moiety; and (C) adding an acid to the aqueous solution to precipitate the compound, and adding thereto a solvent, which can dissolve the compound and which is water insoluble, to dissolve the precipitated compound into the solvent to provide a solution comprising the compound to be collected.
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