Resin-Coated Metal Plate And Drawn Cans Using These Plates

Abstract

The present invention offers resin-coated metal plates that prevent wicket scars from occurring during processes of varnish, print and dry, and there are few scars on the resin-coated surface, the inner surface side of the can and that have superior corrosion resistance and workability, and drawn cans using these metal plates. Therefore, resin film that is applied to the metal plates, is comprised of two layers of a crystallized saturated polyester resin layer [A] and a layer composed of resin [B] that is comprised of saturated polyester resin (i) and ionomer resin (ii), wherein the layer composed of resin [B] is laminated on the above-mentioned metal plate to tightly contact with it, and on the polar surface of the saturated polyester resin layer that is crystallized [A] a highly crystallized layer (X) is formed. The drawn can 10 of the present invention is formed using the resin-coated metal plate 11.

1 . Resin-coated metal plates, comprised of metal plates, and resin film that is applied to the one surface side or to both sides of the metal plate, wherein the resin film is comprised of two layers of, 
 [A] a crystallized saturated polyester resin layer that is induced from dicarboxylic acid and dithydroxy compounds and, within the components of dicarboxylic acid are terephthalic acid and isophthalic acid, or only terephthalic acid, and    [B] a layer composed of resin that is comprised of saturated polyester resin (i) and ionomer resin (ii),    the layer composed of resin [B] is laminated on the metal plate to tightly contact with it,    and on the polar surface of the crystallized saturated polyester resin layer [A], a highly crystallized layer (X) is formed.    
     
     
         2 . Resin-coated metal plates according to  claim 1 , wherein the highly crystallized layer (X) is 10-60%.  
     
     
         3 . Drawn cans formed by drawing or re-drawing of the resin-coated metal plates according to  claim 1 , to have the highly crystallized layer (X) become the inner surface side of the can.  
     
     
         4 . Drawn cans formed by drawing or re-drawing of the resin-coated metal plates according to  claim 2 , to have the highly crystallized layer (X) become the inner surface side of the can.