Metal nanostructured colorants for high redox glass composition

Abstract

A colorant for a high redox glass composition comprising: total iron (Fe 2 O 3 ) 0 to 1.1 weight percent; and from 0.0001 to 0.15 weight percent of at least one of the following: Cu nanostructures, Au nanostructures, or Ag nanostructures, wherein the weight percents are based on the total weight of the glass composition. The colorant of the invention can be used to make glass compositions having various colors.

1 . A colorant for a high redox glass composition comprising: 
 Total iron (Fe 2 O 3 ) 0 to 1.1 weight percent; and    from 0.0001 to 0.15 weight percent of at least one of the following: Cu nanostructures, Au nanostructures, or Ag nanostructures, wherein the weight percents are based on the total weight of the glass composition.    
     
     
         2 . The colorant according to  claim 1  wherein the amount of total iron ranges from 0.005 to 0.40 weight percent.  
     
     
         3 . The colorant according to  claim 1 , wherein Cu nanostructures are present in an amount ranging from 0.0001 to 0.15 weight percent.  
     
     
         4 . The colorant according to  claim 1 , wherein Au nanostructures are present in an amount ranging from 0.0001 to 0.05 weight percent.  
     
     
         5 . The colorant according to  claim 1 , wherein Ag nanostructures are present in an amount ranging from 0.0001 to 0.05 weight percent.  
     
     
         6 . The colorant according to  claim 1 , further comprising at least one of the following: cobalt, nickel, neodymium oxide, erbium, vanadium and chrome oxide.  
     
     
         7 . The colorant according to  claim 3 , further comprising cobalt in an amount ranging up to 500 PPM.  
     
     
         8 . The colorant according to  claim 1 , further comprising selenium in an amount up to 50 PPM.  
     
     
         9 . The colorant according to  claim 1 , wherein the high redox glass composition includes iron and has a redox ratio greater than 0.35.  
     
     
         10 . A high redox glass composition having a colorant portion comprising: 
 Total iron (Fe 2 O 3 ) 0 to 1.1 weight percent; and    from 0.0001 to 0.15 weight percent of at least one of the following: Cu nanostructures, Au nanostructures, or Ag nanostructures, wherein the weight percents are based on the total weight of the glass composition.    
     
     
         11 . The glass composition according to  claim 10 , wherein the amount of total iron ranges from 0.005 to 0.40 weight percent.  
     
     
         12 . The glass composition according to  claim 10 , wherein Cu nanostructures are present in an amount ranging from 0.0001 to 0.15 weight percent.  
     
     
         13 . The glass composition according to  claim 10 , wherein Au nanostructures are present in an amount ranging from 0.0001 to 0.05 weight percent.  
     
     
         14 . The glass composition according to  claim 10 , wherein Ag nanostructures are present in an amount ranging from 0.0001 to 0.05 weight percent.  
     
     
         15 . The glass composition according to  claim 10 , further comprising at least one of the following: cobalt, nickel, neodymium oxide, erbium, vanadium and chrome oxide.  
     
     
         16 . A glass sheet made from the glass composition according to  claim 10 .  
     
     
         17 . The glass sheet according to  claim 16  having a thickness ranging from 1 mm to 6 mm.  
     
     
         18 . The glass composition according to  claim 10 , further comprising an ultraviolet absorbing material.  
     
     
         19 . The glass composition according to  claim 18 , wherein the ultraviolet absorbing material is selected from TiO 2 .  
     
     
         20 . The glass composition according to  claim 10 , wherein the high redox glass composition includes iron and has a redox ratio greater than 0.35.  
     
     
         21 . The glass composition according to  claim 10 , further comprising a base glass portion comprising:  
       
         
           
                 
                 
                 
                 
               
                     
                     
                 
                     
                     
                 
                     
                   SiO 2   
                   66 to 75 
                   weight percent 
                 
                     
                   Na 2 O 
                   10 to 20 
                   weight percent 
                 
                     
                   CaO 
                   5 to 15 
                   weight percent 
                 
                     
                   MgO 
                   0 to 5 
                   weight percent 
                 
                     
                   Al 2 O 3   
                   0 to 5 
                   weight percent 
                 
                     
                   K 2 O 
                   0 to 5 
                   weight percent 
                 
                     
                   BaO 
                   0 to 1 
                   weight percent 
                 
                     
                   B 2 O 5   
                   0 to 5 
                   weight percent 
                 
                     
                     
                 
                     
                     
                 
             
                
                
               
               
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         22 . A method for forming a high redox glass composition comprising: 
 melting a glass batch material wherein the resulting glass composition comprises: a base glass portion comprising:                                                    SiO 2     66 to 75   weight percent         Na 2 O   10 to 20   weight percent         CaO   5 to 15   weight percent         MgO   0 to 5   weight percent         Al 2 O 3     0 to 5   weight percent         K 2 O   0 to 5   weight percent         BaO   0 to 1   weight percent         B 2 O 5     0 to 5   weight percent                                                    and a colorant portion comprising:    Total iron (Fe 2 O 3 ) 0 to 1.1 weight percent;    from 0.0001 to 0.15 weight percent of at least one of the following: Cu nanostructures, Au nanostructures, or Ag nanostructures, wherein the weight percents are based on the total weight of the glass composition.    
     
     
         23 . The method according to  claim 22 , wherein the high redox glass composition includes iron and has a redox ratio greater than 0.35.