Flame-Retardant Resin Composition, Process for Producing the Same, Method of Molding the Same

Abstract

A flame-retardant composition is obtained wherein at least one resin selected from a biodegradable resin and a plant-based resin or a PS resin is flame retarded by using a non-halogen-based flame retardancy-imparting component. At least one catalyst selected from a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon and a catalyst for reforming hydrocarbon is used as a component conferring flame retardancy and this catalyst is kneaded with a biodegradable resin or a plant based resin such as polylactic acid and polybutylene succinate or the PS resin so as to give a resin composition. Further, the resin composition is injection-molded to give an exterior body of electric home appliance. Particularly the silica-magnesia catalyst as a flame-retardant component provides a resin composition with excellent flame-retardant characteristics, as a non-halogen-based material, in the case where polylactic acid or the PS resin is made flame retardant.

1 . A resin composition comprising one or more resin components and one or more flame retardancy-imparting components which confer flame retardancy, wherein at least one flame retardancy-imparting component is selected from a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon, and a catalyst for reforming hydrocarbon. 
     
     
         2 . The resin composition according to  claim 1 , wherein at least one flame retardancy-imparting component is a silica-magnesia catalyst. 
     
     
         3 . The resin composition according to  claim 1 , wherein at least one resin component is at least one resin selected from a biodegradable resin and a plant-based resin. 
     
     
         4 . The resin composition according to  claim 3 , wherein the at least one resin component is at least one resin selected form polylactic acid, lactic acid copolymer, and polybutylene succinate. 
     
     
         5 . The resin composition according to  claim 1 , wherein at least one resin component is polystyrene. 
     
     
         6 . A molded body formed from the resin composition according to  claim 1 . 
     
     
         7 . A method for producing a resin composition which comprises kneading one or more resin components and one or more flame retardancy-imparting components,
 wherein at least one of the flame retardancy-imparting components is a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon, and a catalyst for reforming hydrocarbon.   
     
     
         8 . The method according to  claim 7 , wherein at least one of the flame retardancy-imparting components is a silica-magnesia catalyst. 
     
     
         9 . The method according to  claim 7 , wherein at least one resin component is selected from a biodegradable resin and a plant-based resin. 
     
     
         10 . The method according to  claim 7 , wherein at least one resin component is polystyrene. 
     
     
         11 . A method for molding a resin composition obtained by kneading one or more resin components and one or more flame retardancy-imparting components to give a composition, and molding the composition by an injection molding method or a compression molding method,
 wherein at least one of the flame retardancy-imparting components is a catalyst selected from a catalyst for purifying hydrocarbon, a catalyst for cracking hydrocarbon, a catalyst for synthesizing hydrocarbon, and a catalyst for reforming hydrocarbon.   
     
     
         12 . The method according to  claim 11 , wherein at least one of the flame retardancy-imparting components is a silica-magnesia catalyst. 
     
     
         13 . The method according to  claim 11 , wherein at least one resin component is selected from a biodegradable resin and a plant-base resin. 
     
     
         14 . The method according to  claim 11  wherein at least one resin component is polystyrene.