Reclaimed resin composition

Abstract

A regenerated resin composition comprising (I) a molded article pulverized material (Component A) that satisfies conditions (1) that the molded article pulverized material is a pulverized material of a molded article having an aromatic polycarbonate resin content of 30 to 98% by weight, (2) that the pulverized material has a viscosity average molecular weight of 17,000 to 30,000, and (3) that the pulverized material has a wet heat retention ratio of at least 60%, and (II) an aromatic polycarbonate resin (Component B). According to the present invention, there is provided a regenerated resin composition that comprises a pulverized material from a molded article made of an aromatic polycarbonate resin and that is excellent in the property of retaining physical properties for a long period of time and excellent in mechanical strength.

1 . A regenerated resin composition comprising (I) a molded article pulverized material (Component A) that satisfies conditions 
 (1) that the molded article pulverized material is a pulverized material of a molded article having an aromatic polycarbonate resin content of 30 to 98% by weight,    (2) that the pulverized material has a viscosity average molecular weight of 17,000 to 30,000, and    (3) that the pulverized material has a wet heat retention ratio of at least 60%, and    (II) an aromatic polycarbonate resin (Component B).    
     
     
         2 . The regenerated resin composition of  claim 1 , which has a pulverized material (Component A) content of 5 to 60% by weight and an aromatic polycarbonate resin (Component B) content of 5 to 90% by weight.  
     
     
         3 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) has a wet heat retention ratio of at least 70%.  
     
     
         4 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains a styrene-based resin (Component A-2-PS) or an aromatic polyester resin (Component A-2-PE).  
     
     
         5 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 1 to 65% by weight of Component A-2-PS or Component A-2-PE.  
     
     
         6 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains a flame retardant (Component A-3).  
     
     
         7 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 1 to 30% by weight of a phosphoric ester (Component A-3-a) as a flame retardant.  
     
     
         8 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 0.01 to 10% by weight of an organosiloxane compound (Component A-3-b) as a flame retardant.  
     
     
         9 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 0.0005 to 1% by weight of an alkali (alkaline earth) metal salt (Component A-3-c) as a flame retardant.  
     
     
         10 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 0.5 to 20% by weight of an impact modifier (Component A-4).  
     
     
         11 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) contains 1 to 60% by weight of a reinforcing filler (Component A-5).  
     
     
         12 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) has an aromatic polycarbonate resin (Component A-1) content of 40 to 90% by weight.  
     
     
         13 . The regenerated resin composition of  claim 1 , wherein the pulverized material (Component A) has a viscosity average molecular weight of 18,000 to 26,000.  
     
     
         14 . The regenerated resin composition of  claim 1 , which has a pulverized material (Component A) content of 6 to 50% by weight and an aromatic polycarbonate resin (Component B) content of 10 to 85% by weight.  
     
     
         15 . The regenerated resin composition of  claim 1 , which is a regenerated resin composition composed of the pulverized material (Component A) and the aromatic polycarbonate resin (Component B), wherein the regenerated resin composition (Component C) is a composition that contains 
 (1) 30 to 96% by weight of an aromatic polycarbonate resin (Component C-1),    (2) 3 to 40% by weight of a styrene-based resin (Component C-2-PS), and    (3) 0.01 to 30% by weight of a flame retardant (Component C-3).    
     
     
         16 . The regenerated resin composition of  claim 15 , which further contains 0.5 to 20% by weight of an impact modifier (Component C-4).  
     
     
         17 . The regenerated resin composition of  claim 15  or  16 , which further contains 1 to 60% by weight of a reinforcing filler (Component C-5).  
     
     
         18 . The regenerated resin composition of  claim 15 , which contains, as the flame retardant (Component C-3), 1 to 30% by weight of a phosphoric ester (Component C-3-a).  
     
     
         19 . The regenerated resin composition of  claim 15 , which gives a molded article having a wet heat retention ratio of at least 60%.  
     
     
         20 . The regenerated resin composition of  claim 15 , which gives a molded article having an impact value retention ratio of at least 60%.  
     
     
         21 . The regenerated resin composition of  claim 15 , which gives a molded article that satisfies V-0 in a flame retardancy test according to UL-94.  
     
     
         22 . The regenerated resin composition of  claim 1 , which is a regenerated resin composition composed of the pulverized material (Component A) and the aromatic polycarbonate resin (Component B), wherein the regenerated resin composition (Component C) is a composition that contains 
 (1) 30 to 96% by weight of an aromatic polycarbonate resin (Component C-1),    (2) 3 to 40% by weight of an aromatic polyester resin (Component C-2-PE), and    (3) 0.01 to 30% by weight of a flame retardant (Component C-3).    
     
     
         23 . The regenerated resin composition of  claim 22 , which further contains 0.5 to 20% by weight of an impact modifier (Component C-4).  
     
     
         24 . The regenerated resin composition of  claim 22  or  23 , which further contains 1 to 60% by weight of a reinforcing filler (Component C-5).  
     
     
         25 . The regenerated resin composition of  claim 22 , which gives a molded article having a wet heat retention ratio of at least 60%.  
     
     
         26 . The regenerated resin composition of  claim 22 , which gives a molded article having an impact value retention ratio of at least 60%.  
     
     
         27 . The regenerated resin composition of  claim 22 , which gives a molded article that satisfies V-0 in a flame retardancy test according to UL-94.  
     
     
         28 . The regenerated resin composition of  claim 1 , which is a regenerated resin composition composed of the pulverized material (Component A) and the aromatic polycarbonate resin (Component B), wherein the regenerated resin composition (Component C) is a composition which contains 
 (1) 50 to 98% by weight of an aromatic polycarbonate resin (Component C-1),    (2) 0.01 to 30% by weight of a flame retardant (Component C-3), and    (3) 0 to 20% by weight of an impact modifier (Component C-4).    
     
     
         29 . The regenerated resin composition of  claim 28 , which further contains 1 to 30% by weight of a reinforcing filler (Component C-5).  
     
     
         30 . The regenerated resin composition of  claim 28 , which contains, as the flame retardant (Component C-3), 1 to 30% by weight of a phosphoric ester (Component C-3-a).  
     
     
         31 . The regenerated resin composition of  claim 28 , which gives a molded article having a wet heat retention ratio of at least 60%.  
     
     
         32 . The regenerated resin composition of  claim 28 , which gives a molded article having an impact value retention ratio of at least 60%.  
     
     
         33 . The regenerated resin composition of  claim 28 , which gives a molded article that satisfies V-0 in a flame retardancy test according to UL-94.  
     
     
         34 . A molded article formed of the regenerated resin composition recited in any one of claims  1 ,  15 ,  22  or  28 .  
     
     
         35 . The molded article of  claim 34 , which has a wet heat retention ratio of at least 60%.