Aqueous-based coating composition containing an oleoresinous component

Abstract

An aqueous-based coating composition suitable as a container coating comprising: (A) a resinous phase of (i) a condensate of (a) an organic oil, a phenol and an aldehyde or (b) an organic oil and a phenol-formaldehyde, (ii) an at least partially neutralized acid functional polymer containing reactive functional groups, and optionally (iii) a phenol, an aldehyde or the reaction product thereof; the resinous phase dispersed in (B) aqueous medium.

What is claimed is: 
     
         1 . An aqueous-based coating composition comprising:
 (A) a resinous phase of
 (i) a condensate of
 (a) an organic oil, a phenol and an aldehyde or 
 (b) an organic oil and a phenol-formaldehyde, 
 
 (ii) an at least partially neutralized acid functional polymer containing reactive functional groups, and optionally 
 (iii) a phenol, an aldehyde or the reaction product thereof; 
 the resinous phase dispersed in 
   (B) aqueous medium.   
     
     
         2 . The aqueous-based coating composition of  claim 1  in which
 (i) is present in amounts of 5 to 60 percent by weight, 
 (ii) is present in amounts of 20 to 35 percent by weight, and 
 (iii) is present in amounts of 0 to 60 percent by weight; 
 
       the percentages by weight being based on weight of resin solids in the coating composition. 
     
     
         3 . The aqueous-based coating composition of  claim 1  in which at least a portion of the phenol, at least a portion of the aldehyde and at least a portion of the organic oil are heated together simultaneously at 80 to 130° F. (27 to 54° C.). 
     
     
         4 . The aqueous-based coating composition of  claim 1  in which the phenol is selected from the group consisting of phenol and an alkylated phenol. 
     
     
         5 . The aqueous-based coating composition of  claim 1  in which the aldehyde is formaldehyde. 
     
     
         6 . The aqueous-based coating composition of  claim 1  in which the organic oil has an iodine number of 10 to 180. 
     
     
         7 . The aqueous-based coating composition of  claim 1  in which the organic oil is a vegetable oil. 
     
     
         8 . The aqueous-based coating composition of  claim 1  in which the organic oil is tung oil. 
     
     
         9 . The aqueous-based coating composition of  claim 1  in which the acid functional polymer is a copolymer of (meth)acrylic monomers. 
     
     
         10 . The aqueous-based coating composition of  claim 1  in which the acid groups are carboxylic acid groups. 
     
     
         11 . The aqueous-based coating composition of  claim 1  in which the reactive functional groups are selected from hydroxyl and N-alkoxymethylol groups. 
     
     
         12 . The aqueous-based coating composition of  claim 1  containing an amine-terminated polyamide in the resinous phase. 
     
     
         13 . The aqueous-based coating composition of  claim 1  containing a polysilicone resin in the resinous phase. 
     
     
         14 . The aqueous-based coating composition of  claim 1  containing a copolymer of (meth)acrylic monomers free of acid functionality and containing reactive functional groups.