Container in which inner surface is formed from olefin resin layer

Abstract

A container of the present invention has an inner surface formed of an olefin resin layer that includes an organic bleeding lubricant and in which an inorganic porous agent is blended.

1 . A container having an inner surface formed of an olefin resin layer, wherein the olefin resin layer includes an organic bleeding lubricant and in which an inorganic porous agent is blended. 
     
     
         2 . The container according to  claim 1 , wherein the organic bleeding lubricant is at least one kind of saturated or unsaturated fatty acid having a melting point of not higher than 50° C. 
     
     
         3 . The container according to  claim 1 , wherein when extraction is conducted by filling the container with n-heptane as an extract, 10 to 150 μg/ml of an evaporation residue of the extract is obtained. 
     
     
         4 . The container according to  claim 1 , wherein the inorganic porous agent is high silica zeolite having a silica/alumina ratio of not less than 80. 
     
     
         5 . The container according to  claim 4 , wherein the container has a multilayered structure including the olefin resin layer of the inner surface, and the inorganic porous agent is blended selectively in the olefin resin layer of the inner surface. 
     
     
         6 . The container according to  claim 1 , wherein the inorganic porous agent is blended in an amount of 0.2 to 3.0% by mass in the olefin resin layer that forms the container inner surface. 
     
     
         7 . The container according to  claim 1 , wherein the inorganic porous agent has an average particle diameter in a range of 0.1 to 4.9 μm. 
     
     
         8 . The container according to  claim 1 , wherein an average surface roughness Ra of the inner surface of the container is not more than 0.3 μm. 
     
     
         9 . The container according to  claim 1 , which is filled with an emulsion as a content.