Liquid color concentrate for use in particle articles

Abstract

A liquid color concentration for use in plastic articles comprises a non-orthophthalate plasticizer and at least one of a colorant, a functional additive or a special effect pigment.

1 - 21 . (canceled) 
     
     
         22 . A method of making a liquid color concentrate having a stable and pourable viscosity, consisting of:
 mixing a colorant,   a non-orthophthalate plasticizer, and   optionally one or more functional additives in a mixing mill or a “Cowles” type mixer at a speed of 100 to 10,000 rpms,   wherein the functional additive is selected from the group consisting anti-oxidants, anti-stats, acetaldehyde scavengers, blowing agents, thickeners, and ultraviolet stabilizers.   
     
     
         23 . The method of  claim 22 , wherein the non-orthophthalate plasticizer terephthalate. 
     
     
         24 . The method of  claim 23 , wherein the terephthalate is 1,4-bis(2-ethylhexyl) benzenedicarboxylate. 
     
     
         25 . The method of  claim 22 , wherein the liquid color concentrate includes about 8% to about 99.9% of non-orthophthalate plasticizer. 
     
     
         26 . A method of making a colored plastic article using a liquid color concentrate, comprising:
 preparing a liquid color concentrate using a process consisting of:
 mixing a colorant, 
 a non-orthophthalate plasticizer, and 
 optionally one or more functional additives in a mixing mill or a “Cowles” type mixer at a speed of 100 to 10,000 rpms, 
 wherein the functional additive is selected from the group consisting anti-oxidants, anti-stats, acetaldehyde scavengers, blowing agents, thickeners, and ultraviolet stabilizers; and 
   molding the liquid color concentrate with a polymer resin to provide a colored plastic article.   
     
     
         27 . The method of  claim 26 , wherein the non-orthophthalate plasticizer is a terephthalate. 
     
     
         28 . The method of  claim 27 , wherein the terephthalate is 1,4-bis(2-ethylhexyl) benzenedicarboxylate. 
     
     
         29 . The method of  claim 25 , wherein the liquid color concentrate includes about 8% to about 99.9% of non-orthophthalate plasticizer. 
     
     
         30 . The method of  claim 26 , wherein the colored plastic article includes about 0.01% to about 10% of the non-orthopthalate plasticizer. 
     
     
         31 . The method of  claim 26 , wherein the polymer resin is a polyester. 
     
     
         32 . The method of  claim 31 , wherein the polyester is selected from the group consisting of polyethylene terephthalate, glycol-modified polyethylene terepthalate, and polyethylene 2,6-naphthalate