Composition derived from a softening agent and a thermoplastic resin composition containing the same

Abstract

This invention provides a softening agent composition obtained by blending and heat treating (a) 100 parts by weight of at least one non-aromatic hydrocarbon softening agent for rubber; (b) 0.1 to 10 parts by weight of an organic peroxide; and (c) 0.1 to 50 parts by weight of a crosslinking aid. with the proviso that the weight ratio of component (b) to component (c) is 1 or less. The softening agent composition is useful and very easy to handle in the production of a thermoplastic resin composition.

1 . A composition derived from a softening agent for rubber, characterized in that the composition is obtainable by blending and heat treating 
 (a) 100 parts by weight of at least one non-aromatic hydrocarbon softening agent for rubber;    (b) 0.1 to 10 parts by weight of an organic peroxide; and    (c) 0.1 to 50 parts by weight of a crosslinking aid, with the proviso that the weight ratio of component (b) to component (c) is 1 or less.    
     
     
         2 . A composition according to    claim 1   , wherein component (a) is a saturated hydrocarbon having 4 to 155 carbon atoms.  
     
     
         3 . A composition according to    claim 1   , wherein component (a) is a saturated hydrocarbon having 4 to 50 carbon atoms.  
     
     
         4 . A composition according to    claim 1   , wherein component (a) is a linear saturated hydrocarbon.  
     
     
         5 . A composition according to    claim 1   , wherein component (a) is a branched saturated hydrocarbon.  
     
     
         6 . A composition according to    claim 1   , wherein component (a) is liquid at room temperature.  
     
     
         7 . A composition according to    claim 1   , wherein the composition has an extraction residue of 10% by weight or more after immersed in acetone.  
     
     
         8 . A thermoplastic resin composition comprising 100 parts by weight of a composition according to any one of claim 1 to 7 and 
 (d) 0.1 to 1500 parts by weight of a thermoplastic resin.    
     
     
         9 . A thermoplastic resin composition according to    claim 8   , wherein component (d) is selected from the group consisting of 
 (d1) a block copolymer consisting of at least one polymeric block A composed mainly of a vinyl aromatic compound and at least one polymeric block B composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating this block copolymer; and    (d2) an olefinic resin and/or olefinic copolymer rubber.    
     
     
         10 . A thermoplastic resin composition obtained by heat treating a thermoplastic resin composition according to    claim 8    or    9    in the presence of an organic peroxide.  
     
     
         11 . A thermoplastic resin composition, characterized in that the composition is obtainable by blending and heat treating 
 (a) 100 parts by weight of at least one non-aromatic hydrocarbon softening agent for rubber;    (b) 0.1 to 10 parts by weight of an organic peroxide;    (c) 0.1 to 50 parts by weight of a crosslinking aid; and    (d) 1500 parts by weight or less of a thermoplastic resin, with the proviso that the weight ratio of component (b) to component (c) is 1 or less.    
     
     
         12 . A thermoplastic resin composition according to    claim 11   , wherein the amount of component (d) is 100 to 1500 parts by weight.  
     
     
         13 . A thermoplastic resin composition according to    claim 11   , wherein component (a) is a saturated hydrocarbon having 4 to 155 carbon atoms.  
     
     
         14 . A thermoplastic resin composition according to    claim 11   , wherein component (a) is a saturated hydrocarbon having 4 to 50 carbon atoms.  
     
     
         15 . A thermoplastic resin composition according to    claim 11   , wherein component (a) is a linear saturated hydrocarbon.  
     
     
         16 . A thermoplastic resin composition according to    claim 11   , wherein component (a) is a branched saturated hydrocarbon.  
     
     
         17 . A thermoplastic resin composition according to    claim 11   , wherein component (a) is liquid at room temperature.  
     
     
         18 . A thermoplastic resin composition according to    claim 11   , wherein the composition has an extraction residue of 10% by weight or more after immersed in acetone.  
     
     
         19 . A thermoplastic resin composition according to    claim 11   , wherein component (d) is selected from the group consisting of 
 (d1) a block copolymer consisting of at least one polymeric block A composed mainly of a vinyl aromatic compound and at least one polymeric block B composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating this block copolymer; and    (d2) an olefinic resin and/or olefinic copolymer rubber.