Recycled plastic material, electronic apparatus having the recycled plastic material method of manufacturing plastic part, method of manufacturing the recycled plastic material, and method of reusing plastic material

Abstract

A recycled plastic material is made from laser-engraved thermoplastic, metal-containing thermoplastic, thermoplastic used in an inkjet apparatus, or thermoplastic to which an ink or its composition have stuck. This recycled plastic material is manufactured by pulverizing any of these thermoplastics, cleaning the pulverized thermoplastic, removing a cleaning solution from the cleaned thermoplastic to dry it, and removing the dried thermoplastic solid matter other than the thermoplastic.

1 . (canceled)  
     
     
         2 . A recycled plastic material manufactured by pulverizing laser-engraved thermoplastic, cleaning the pulverized thermoplastic, removing a cleaning solution from the cleaned thermoplastic to dry the thermoplastic, and removing from the dried thermoplastic solid matter other than the thermoplastic, wherein 
 letting I R  and M R  denote an Izod impact value and a melt flow rate. respectively, of the recycled plastic material and I V  and M V  denote an Izod impact value and a melt flow rate of a virgin material of the thermoplastic before molding, (I R /I V )>0.8 and (M R /M V )<1.2 are met.    wherein the cleaning solution is water, and water used in cleaning is filtered and reused and a filter for filtering the water has a mesh within the range of 25 to 200 μm, and    wherein a weight ratio of the cleaning solution to the pulverized thermoplastic is not less than 10 times.    
     
     
         3 . (canceled)  
     
     
         4 . A recycled plastic material manufactured by pulverizing thermoplastic containing a metal, cleaning the pulverized thermoplastic, removing a cleaning solution from the cleaned thermoplastic to dry the thermoplastic, and removing from the dried thermoplastic solid matter other than the thermoplastic, wherein 
 letting I R  and M R  denote an Izod impact value and a melt flow rate, respectively, of the recycled plastic material and I V  and M V  denote an Izod impact value and a melt flow rate of a virgin material of the thermoplastic before molding, (I R /I V )>0.8 and (M R /M V )<1.2 are met,    wherein the cleaning solution is water, and water used in cleaning is filtered and reused, and a filter for filtering the water has a mesh within the range of 25 to 200 μm, and    wherein a weight ratio of the cleaning solution to the pulverized thermoplastic is not less than 10 times.    
     
     
         5 - 20 . (canceled)  
     
     
         21 . A recycled plastic material manufactured by pulverizing thermoplastic to which ink and components thereof have stuck, cleaning the pulverized thermoplastic, removing a cleaning solution from the cleaned thermoplastic to dry the thermoplastic, and removing from the dried thermoplastic solid matter other than thermoplastic, wherein 
 letting I R  and M R  denote an Izod impact value and a melt flow rate, respectively, of the recycled plastic material and I V  and M V  denote an Izod impact value and a melt flow rate of a virgin material of the thermoplastic before molding, (I R /I V )>0.8 and (M R /M V )<1.2 are met,    wherein the cleaning solution is water, and water used in cleaning is filtered and reused, and a filter for filtering the water has a mesh within the range of 25 to 200 μm,    wherein a weight ratio of the cleaning solution to the pulverized thermoplastic is not less than 10 times, and    wherein an amount of ink and components thereof sticking to the thermoplastic after the solid matter is removed is less than 300 ppm.    
     
     
         22 - 26 . (canceled)  
     
     
         27 . The material according to  claim 21 , wherein the cleaning solution used in cleaning is reused by a distillation apparatus.  
     
     
         28 - 32 . (canceled)  
     
     
         33 . A recycled plastic material made from the material according to  claim 2 , and a virgin material of thermoplastic before molding.  
     
     
         34 . The material according to  claim 2 , wherein the thermoplastic is one of an ABS resin, a PS resin, and a PS-modified PPE resin.  
     
     
         35 - 56 . (canceled)