Polylactic Acid Resin Composition and Resin Molded Article Thereof

Abstract

Provided are a polylactic acid resin composition excellent in impact resistance, migration resistance, and heat resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one of a polyol and a polyol dehydration condensate, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a fatty acid amide.

What is claimed is: 
     
         1 . A polylactic acid resin composition comprising:
 a first component comprising a polylactic acid;   a second component comprising a reaction product of at least one of a polyol and a polyol dehydration condensate, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and   a third component comprising a fatty acid amide.   
     
     
         2 . The polylactic acid resin composition according to  claim 1 , wherein the reaction product as said second component contains 20 to 95 wt % of an oxyethylene group. 
     
     
         3 . The polylactic acid resin composition according to  claim 1 , wherein the polyol as a material for the reaction product as said second component comprises at least one component selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol. 
     
     
         4 . The polylactic acid resin composition according to  claim 2 , wherein the polyol as a material for the reaction product as said second component comprises at least one component selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol. 
     
     
         5 . The polylactic acid resin composition according to  claim 1 , wherein a content of said second component falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         6 . The polylactic acid resin composition according to  claim 2 , wherein a content of said second component falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         7 . The polylactic acid resin composition according to  claim 3 , wherein a content of said second component falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         8 . The polylactic acid resin composition according to  claim 4 , wherein a content of said second component falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         9 . The polylactic acid resin composition according to  claim 1 , wherein a content of said third component falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         10 . The polylactic acid resin composition according to  claim 2 , wherein a content of said third component falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         11 . The polylactic acid resin composition according to  claim 3 , wherein a content of said third component falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         12 . The polylactic acid resin composition according to  claim 4 , wherein a content of said third component falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of said first component. 
     
     
         13 . A resin molded article comprising a polylactic acid resin composition comprising:
 a first component comprising a polylactic acid;   a second component comprising a reaction product of at least one of a polyol and a polyol dehydration condensate, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and   a third component comprising a fatty acid amide.   
     
     
         14 . The resin molded article according to  claim 13 , wherein the reaction product as said second component contains 20 to 95 wt % of an oxyethylene group. 
     
     
         15 . The resin molded article according to  claim 13 , wherein the polyol as a material for the reaction product as said second component comprises at least one component selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol. 
     
     
         16 . The resin molded article according to  claim 14 , wherein the polyol as a material for the reaction product as said second component comprises at least one component selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol.