Methods for electrocoating full panel easy open ends

Abstract

A method for electrocoating a surface of a full panel easy open end is disclosed. The surface is substantially uncoated prior to electrodeposition. Full panel easy open ends prepared by the methods are also disclosed.

1 . A method for electrocoating a substantially uncoated surface of a full panel easy open end comprising electrodepositing on the end an electrodepositable coating.  
   
   
       2 . The method of  claim 1 , wherein said method is effected by anodic electrodeposition.  
   
   
       3 . The method of  claim 1 , wherein the coating comprises epoxy.  
   
   
       4 . The method of  claim 1 , wherein the coating is epoxy free.  
   
   
       5 . The method of  claim 4 , wherein the coating comprises acrylic.  
   
   
       6 . The method of  claim 5 , wherein the acrylic comprises hydroxyethylmethacrylate.  
   
   
       7 . The method of  claim 5 , wherein the coating further comprises a phenolic crosslinker.  
   
   
       8 . The method of  claim 7 , wherein the crosslinker comprises at least 50 weight percent of the coating, with weight percent being based on total solids weight.  
   
   
       9 . The method of  claim 7 , wherein the crosslinker comprises at least 60 weight percent of the coating, with weight percent being based on total solids weight.  
   
   
       10 . The composition of  claim 5 , further comprising polyester.  
   
   
       11 . The composition of  claim 10 , wherein the acrylic and polyester are a graft copolymer.  
   
   
       12 . The method of  claim 11 , wherein the coating is aqueous.  
   
   
       13 . The method of  claim 5 , wherein the coating is aqueous.  
   
   
       14 . A method for preparing a full panel easy open end comprising: 
 (a) stamping an end from a metal sheet; and    (b) electrodepositing on the end an electrodepositable coating;    wherein a surface of the end is substantially uncoated prior to step (b).    
   
   
       15 . The method of  claim 14 , wherein the metal sheet is lubricated prior to stamping.  
   
   
       16 . The method of  claim 15 , wherein the stamped end is cleaned prior to electrodeposition.  
   
   
       17 . The method of  claim 14 , wherein some portion of a surface has a coating applied thereto prior to electrodeposition.  
   
   
       18 . A full panel easy open end prepared according to  claim 1 .  
   
   
       19 . A full panel easy open end prepared according to  claim 14.