Lead-free nontoxic priming mix

Abstract

The present invention is directed to a lead-free, non-toxic priming composition, comprising: 20-40 wt % of a dinitrobenzofuroxan salt; 2-10 wt % of a sensitizer; 0-30 wt % of an oxidizer; and 45-70 wt % of an abrasive, wherein all weight percents are based on the total weight of said composition.

What is claimed is:  
     
         1 . A lead-free, non-toxic priming composition, comprising: 
 20-40 wt % of a dinitrobenzofuroxan salt;    2-10 wt % of a sensitizer;    0-30 wt % of an oxidizer; and    48-70 wt % of an abrasive    wherein all weight percents are based on the total weight of said composition.    
     
     
         2 . The lead-free, non-toxic priming mix of  claim 1 , wherein said dinitrobenzofuran salt is the potassium salt.  
     
     
         3 . The lead-free, non-toxic priming mix of  claim 1 , wherein said dinitrobenzofuran salt comprises from about 30 to about 40 wt %, based on the total weight of said composition.  
     
     
         4 . The lead-free, non-toxic priming mix of  claim 1 , wherein said dinitrobenzofuran salt comprises approximately 35 wt %, based on the total weight of said composition.  
     
     
         5 . The lead-free, non-toxic priming mix of  claim 1 , wherein said sensitizer is tetrazene.  
     
     
         6 . The lead-free, non-toxic priming mix of  claim 1 , wherein said sensitizer comprises from about 3 to about 8 wt %, based on the total weight of said composition.  
     
     
         7 . The lead-free, non-toxic priming mix of  claim 1 , wherein said sensitizer comprises approximately 5 wt %, based on the total weight of said composition.  
     
     
         8 . The lead-free, non-toxic priming mix of  claim 1 , wherein said oxidizer is a nitrate salt.  
     
     
         9 . The lead-free, non-toxic priming mix of  claim 1 , wherein said oxidizer is potassium nitrate.  
     
     
         10 . The lead-free, non-toxic priming mix of  claim 1 , wherein said oxidizer comprises from about 0 to about 15 wt %, based on the total weight of said composition.  
     
     
         11 . The lead-free, non-toxic priming mix of  claim 1 , wherein said oxidizer comprises approximately 3 wt %, based on the total weight of said composition.  
     
     
         12 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive is glass particles.  
     
     
         13 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive comprises from about 50 to about 60 wt %, based on the total weight of said composition.  
     
     
         14 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive comprises approximately 57 wt %, based on the total weight of said composition.  
     
     
         15 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive has an average particle size of from about 75 to about 150 microns.  
     
     
         16 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive has an average particle size of from about 90 to about 150 microns.  
     
     
         17 . The lead-free, non-toxic priming mix of  claim 1 , wherein said abrasive has an average particle size of approximatly 110 microns.  
     
     
         18 . A lead-free, non-toxic priming composition, comprising: 
 30-40 wt % of potassium dinitrobenzofuroxan salt;    3-8 wt % of tetrazene;    0-15 wt % potassium nitrate; and    50-60 wt % of glass particles having an average particle size of from 90 to 150 microns,    wherein all weight percents are based on the total weight of said composition.