Polyolefin Blends Used as Masterbatch Concentrates

Abstract

Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin.

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         14 . A polyolefin blend comprising:
 a polyolefin; and   a concentrated monomer system comprising the polyolefin and an acrylic monomer.   
     
     
         15 . The blend of  claim 14  further comprising 5 wt. % to about 40 wt. % of the monomer system comprising from about 25 wt. % to about 85 wt. % of the acrylic monomer. 
     
     
         16 . The blend of  claim 14 , wherein the polyolefin comprises polypropylene. 
     
     
         17 . The blend of  claim 14  further comprising from about 5 wt. % to about 25 wt. % of the monomer system. 
     
     
         18 . The blend of  claim 14 , wherein the acrylic monomer is selected from 2-(2-ethoxyethoxy) ethyl acrylate, diethylene glycol diacrylate, tridecyl acrylate, tridecylacrylate hexanediol diacrylate, lauryl acrylate, alkoxylated lauryl acrylate, caprolactone acrylate, 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, polyethylene glycol diacrylate, neopentane diol diacrylate, polyethylene glycol diacrylate and combinations thereof. 
     
     
         19 . The blend of  claim 14 , wherein the monomer system comprises from about 35 wt. % to about 75 wt. % of the acrylic monomer. 
     
     
         20 . The blend of  claim 14 , wherein the monomer system comprises hydrophilic monomers. 
     
     
         21 . The blend of  claim 14  further comprising a surface tension of from about 35 dyne/cm 2  to about 70 dyne/cm 2 . 
     
     
         22 . The blend of  claim 14  further comprising a surface tension of from about 45 dyne/cm 2  to about 60 dyne/cm 2 . 
     
     
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         28 . A polymer article formed from the blend of  claim 14 . 
     
     
         29 . The polymer article of  claim 28 , wherein the polymer article exhibits an enhanced paintability than over the paintability of a polymer article formed from a polyolefin formed with a monomer system in the absence of the concentrated monomer system.