JP2002332374A5 - - Google Patents

Claims (12)

The diol is heated to a predetermined temperature, and the foamed material, plastic container, or plastic material is immersed in the heated solution or sprayed, and then pressure is applied to reduce (reduce) or soften the diol. A method for recovering waste materials by collecting (including taking out from a container) foamed materials, plastic containers or plastic materials. The polyol is heated to a predetermined temperature, and the foamed material, plastic container, or plastic material is immersed in the heated solution, or sprayed with the solution, and then pressure is applied to reduce (reduce) or soften, and then A method for recovering waste materials by collecting (including taking out from a container) foamed materials, plastic containers or plastic materials. After immersing the foam, plastic container, or plastic material in the diol, or spraying the solution, heat to apply pressure to reduce (reduce) or soften the foam, then the plastic container, or plastic material. A method for collecting waste materials that are collected (including taking out from containers). After the foam material, plastic container, or plastic material is immersed in the polyol or sprayed with the solution, it is heated to apply pressure to reduce (decrease) or soften the foam material, plastic container, or plastic material. A method for collecting waste materials that are collected (including taking out from containers) . The method for recovering waste materials according to claim 1, wherein the solution temperature is heated from 70 ° C or higher to a boiling point temperature. The foam material is foamed polystyrene, foamed polyurethane, foamed polyethylene, or foamed polypropylene, and the plastic container is made of polyethylene, polypropylene, PVC, or a plastic bottle, and the plastic material is made of PVC, polyethylene, or polypropylene. 6. The method for recovering waste material according to claim 1, wherein the method is a plate, cylinder, sheet or the like. 7. The method for recovering waste materials according to claim 1, wherein the diol is monoacylglycerol or alkylene glycol or a polymer thereof. The alkylene glycol is diethylene glycol, trimethylene glycol, triethylene glycol, tetraethylene glycol, butylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, and the polymer is polyethylene glycol or polypropylene glycol. Item 8. A method for recovering waste material according to Item 7 . 7. The method for recovering waste material according to claim 1, wherein the polyol is triol. The method for recovering waste materials according to claim 9, wherein the triol is glycerin or trimethylolpropane. A heating device for heating the diol or polyol solution or a mixed solution thereof at a predetermined temperature, and a means for immersing a foam material , a plastic container, or a plastic material in the heated liquid , or spraying the heated solution; A waste material recovery apparatus comprising a collection means for collecting the foam material, plastic container, or plastic material. 12. The heating device according to claim 11, wherein the heating device is configured by any one or a combination of an induction heating device, a microwave heating device, an ultrasonic heating device, a high frequency vibration heating device, and an ultrasonic vibration heating device. Waste material recovery equipment .