Multilayered plastic container

Abstract

A three or more layered plastic container is provided, wherein the innermost first layer is a plastic layer, the intermediate second layer is a plastic layer adjacent the first layer containing an oxygen scavenging material, and the outermost third layer is a plastic layer. The thickness of the innermost layer is in the range of 0.1 to 3 mils and is controlled based on the desired shelf life of the container in the unfilled condition.

1 - 12 . (canceled)  
     
     
         13 . The process which comprises: 
 forming a multilayered plastic container having an upper wall portion, an intermediate sidewall portion and a self-supporting base portion, said portions formed from at least an innermost first layer, an intermediate second layer and an outermost third layer; and    wherein said innermost first layer is formed from a plastic material having a thickness of from 0.1 to 3 mils, said intermediate second-layer is formed from a plastic material containing at least one oxygen scavenging material and having a thickness of from 0.1 to 3 mils, and said outermost third layer is formed from a plastic material having a thickness of from 3 to 23 mils.    
     
     
         14 . The process according to  claim 13 , including forming the innermost first layer from a plastic material approved for contact with food or beverage products, and controlling the thickness of the innermost first layer in the range of 0.1 to 3 mils based on the desired shelf life of the container in the unfilled condition.  
     
     
         15 . The process according to  claim 13 , including the step of forming a blow molded container.  
     
     
         16 . The process according to  claim 13 , including forming said container from a multilayered preform, including forming extrusion molded innermost and intermediate layers and an injection molded outermost layer.  
     
     
         17 . The process according to  claim 13 , including providing at least 5% of recycled plastic material in the outermost layer.  
     
     
         18 . The process according to  claim 13 , including providing that the outermost layer comprises at least 40% by weight of the total weight of the container.  
     
     
         19 . The process according to  claim 13 , including providing that the intermediate layer contains a barrier material.  
     
     
         20 . The process according to  claim 13 , including providing that at least one layer has differing thicknesses.