Process for making a fabricated article from polyolefin

Abstract

The present disclosure describes a method for preparing a carbonized article comprising providing a fabricated polyolefin article; crosslinking the fabricated article with a boron-containing species (BCS); stabilizing the fabricated article by air oxidation; and carbonizing the fabricated article. The present disclosure further describes preparing a stabilized article.

What is claimed is: 
     
         1 . A method for preparing a carbonized article comprising:
 (a) providing a polyolefin resin;   (b) forming a fabricated article from the polyolefin resin;   (c) crosslinking the fabricated article with a boron-containing species (BCS);   (d) stabilizing the fabricated article by air oxidation; and   (e) carbonizing the fabricated article.   
     
     
         2 . The method of  claim 1 , wherein the BCS comprises borane, borate, borinic acid, boronic acid, boric acid, borinic or boronic ester, boroxine, aminoborane, borazine, borohydrides and derivatives and combinations thereof. 
     
     
         3 . The method of  claim 1 , wherein the method further comprises treating the crosslinked fabricated article prepared in step (c) with a BCS. 
     
     
         4 . The method of  claim 1 , wherein step (d) comprises heating the crosslinked fabricated article at or above 120° C. 
     
     
         5 . The method of  claim 1 , wherein step (b) comprises converting said polyolefin resin to a fabricated article by fiber spinning, film extrusion casting, blown film processing, profile extrusion through a die, injection molding, solution casting or compression molding. 
     
     
         6 . A method for preparing a boron-treated carbonized article comprising:
 (a) providing a fabricated polyolefin article;   (b) crosslinking the fabricated article with a boron-containing species (BCS);   (c) stabilizing the fabricated article by air oxidation; and   (d) carbonizing the fabricated article.   
     
     
         7 . The method of  claim 6 , wherein the BCS comprises borane, borate, borinic acid, boronic acid, boric acid, borinic or boronic ester, boroxine, aminoborane, borazine, borohydrides and derivatives and combinations thereof. 
     
     
         8 . The method of  claim 6 , wherein the method further comprises treating the crosslinked fabricated article prepared in step (b) with a BCS. 
     
     
         9 . The method of  claim 6 , wherein step (c) comprises heating the crosslinked fabricated article at or above 120° C. 
     
     
         10 . A method for preparing a stabilized article comprising:
 (a) providing a polyolefin fabricated article;   (b) crosslinking the fabricated article with a boron-containing species (BCS); and   (c) stabilizing the fabricated article by air oxidation.