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AssigneesKabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
InventorsNorio Sato, Shigetoshi Sugiyama, Takashi Ohta, Mitsumasa Matsushita, Shoichi Suzuki, Takeyoshi Nishio, Toshio Yokoi
Estimating the term…
A process for reclaiming waste plastics having a paint film which includes subjecting the paint film to a hydrolysis treatment by immersing the waste plastics having a urethane paint film or an amino resin paint film in a treating liquid, or contacting the waste plastics with the vapor of a treating liquid, to decompose the paint into lower molecular weight compounds. The resulting waste plastics are then heated and kneaded to disperse the products of the hydrolysis in the waste plastics, and there is recovered a reclaimed waste plastics product having good mechanical properties.
A process for reclaiming waste plastics having an urethane paint film or an amino resin paint film on a base resin, comprising the steps of subjecting the paint film to hydrolysis treatment to decompose the paint film into low molecular weight hydrolysis products, kneading the plastics and resulting hydrolysis products to disperse the hydrolysis products in the base resin and recovering a reclaimed waste plastics product suitable for molding.
A process for reclaiming waste plastics having a paint film comprising the steps of:
A process for reclaiming waste plastics having an urethane paint film or an amino resin paint film on a base resin, comprising the steps of subjecting the paint film to hydrolysis treatment and then kneading the plastics having thereon the paint film subjected to the hydrolysis treatment to disperse the paint film subjected to the hydrolysis treatment finely and uniformly in the base resin so that the resulting dispersed paint film has a particle size of about several micrometers, and recovering a reclaimed waste plastics products suitable for molding.
Dependencies are inferred from the claim text.