Process for recycling resin covered with paint film

Details Process for recycling resin covered with paint film Process for recycling resin covered with paint film

C - Chemistry, Metallurgy

08

J

C08J 11/28 (2006.01) B29B 17/02 (2006.01) B29C 47/76 (2006.01) C08J 11/04 (2006.01)

Patent

CA 2175016

A process for recycling a thermoplastic resin covered with a thermosetting- resin paint film includes the steps of decomposing the paint film by bringing the ther- moplastic resin covered with the paint film into contact with a paint-film-decomposing agent in a molten state, and removing decomposed products, resulting from the paint film and the paint-film-decomposing agent, and the residual paint-film-decomposing agent by degassification to prepare a recycled resin. The paint-film-decomposing agent can be primary amines and/or secondary amines having a boiling point of 250 °C or less, or being decomposed at 250 °C or less, or can be tertiary amines and/or qua- ternary amines having a boiling point of 250 °C or less, or being decomposed at 250 °C or less to which water and/or alcohols is added.

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