Polyethers derived from benzene dimethanol

Abstract

Containers comprising a food-contacting surface and a coating thereon are disclosed. The coating comprises polyethers derived from benzene dimethanol.

1 . A container comprising a food-contacting surface wherein at least a portion of the food-contacting surface is coated with a composition comprising a polyether composition derived from benzene dimethanol containing at least one of the following segments: 
       
         
           
           
               
               
           
         
       
       where R 1  is phenylene; R 2  is a saturated aliphatic radical, R 3  is a (cyclo)aliphatic radical, an arylene radical or an alkarylene radical, m is 0 to 12, n is 1 to 12 and p is less than 5, or 
       
         
           
           
               
               
           
         
       
       where R 1  is phenylene, R 2  is a saturated aliphatic radical, R 3  is a (cyclo)aliphatic radical, an arylene radical or an alkarylene radical, t is less than 5, u is 0 to 12 and v is 1 to 12. 
     
     
         2 . The container of  claim 1  in which (A) is terminated with epoxy groups or phenolic hydroxyl groups. 
     
     
         3 . The container of  claim 1  in which (C) is terminated with epoxy groups or phenolic hydroxyl groups. 
     
     
         4 . The container of  claim 1  where Ar is phenylene. 
     
     
         5 . The container of  claim 1  where R 2  is a linear alkylene radical containing from 4 to 12 carbon atoms. 
     
     
         6 . The container of  claim 1  where p is 1 to 2. 
     
     
         7 . The container of  claim 1  where R 3  is 
       
         
           
           
               
               
           
         
       
     
     
         8 . The container of  claim 1  where R 3  is phenylene. 
     
     
         9 . The container of  claim 8  where the phenylene radical is derived from resorcinol, hydroquinone and/or catechol. 
     
     
         10 . The container of  claim 1  in which the polyether composition is aqueous based and in which the polyether (A) and/or (C) is grafted to a (meth)acrylic polymer.