To provide a method for decomposing a laminated resin product, capable of fully decomposing a solvolyzable resin therein while suppressing hydrofluoric acid formation.
The method for decomposing a laminated resin product 1 is provided, comprising solvolyzing a solvolyzable resin in the laminated resin product 1 where at least a first resin layer 2 comprising the resin solvolyzable with an alcohol and a second resin layer 3 comprising a fluororesin are laminated with each other. Specifically, this method comprises the following step: The laminated resin product 1 is brought into contact with an alcohol in a supercritical state to solvolyze the solvolyzable resin into a monomer and/or oligomer in a liquid phase; wherein it is preferable that methanol or ethanol be used as the alcohol.
SAKO TAKESHI
IMAI HIDEYUKI
NAGAMORI YOSHINORI
IWASE SUNAO
UNIV SHIZUOKA NAT UNIV CORP