METHOD FOR REMOVING LAYER OF DIFFERENT QUALITY ON THERMOPLASTIC RESIN BASE MATERIAL, METHOD FOR RECOVERING THERMOPLASTIC RESIN AND MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide an improved method for removing the layer provided on a thermoplastic resin base material, and a method capable of inexpensively and stably recovering a resin of high quality capable of being utilized for the purpose of the original purpose by removing the layer of different quality provided on the base material from a molded product comprising the thermoplastic resin base material.

SOLUTION: In the removal method of the layer of different quality, the layer of different quality provided on the base material comprising a thermoplastic resin is removed from the base material in an alkali aqueous solution heated to a temperature of 75°C or above for setting the storage elastic modulus of the base material to 5×107Pa or above.

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