Injection blow moulded single layer metallocene polyethylene container

Abstract

A single layer hollow packaging, comprising essentially a metallocene-produced polyethylene and produced by injection blow moulding, chasacterised in that said hollow packaging has an external and internal gloss of at least 30 and said metallocene-produced polyethylene has a density of from 0.910 up to 0.966 g/CM3 or up to homopolymer densities and a melt index MI2 of from 0.5 to 2.5 g/10 min.

1 - 8 . (Cancelled)  
     
     
         9 . A hollow, high-gloss packaging article produced by injection blow molding comprising a single layer wall structure having an external surface having a gloss of at least 30 and an internal surface having a gloss of at least 30 and defining an internal chamber, said wall structure formed of a single layer of a metallocene produced-polyethylene having a density of from 0.910 to 0.966 g/cm 3  and a melt index MI2 of from 0.2 to 5 g/10 min.  
     
     
         10 . The hollow packaging article of  claim 9  wherein said metallocene-produced polyethylene has a melt index MI2 of from 0.5 to 2.5 g/10 min.  
     
     
         11 . The hollow packaging article of  claim 9 , wherein the metallocene-produced polyethylene has a melt index M12 of from 0.5 to 2.0 g/10 min.  
     
     
         12 . The hollow packaging article of  claim 9  wherein the metallocene-produced polyethylene has a melt index M12 of from 0.5 to 2.0 g/10 min.  
     
     
         13 . The hollow packaging article of  claim 9  wherein said metallocene-produced polyethylene has a density within the range of 0.925 g/cm 3  to 0.966 g/cm 3 .  
     
     
         14 . The hollow packaging article of  claim 9  wherein said metallocene-produced polyethylene is produced by the polymerization of ethylene in the presence of a metallocene catalyst selected from the group consisting of ethylene bis-(tetrahydroindenyl) zirconium dichloride, ethylene bis-(indenyl) zirconium dichloride, and bis-(n-butylcyclopentadienyl) zirconium dichloride.  
     
     
         15 . The hollow packaging article of  claim 9  wherein the metallocene-produced polyethylene has a molecular weight distribution within the range of 2-5.  
     
     
         16 . The hollow packaging article of  claim 9  wherein said single layer wall structure is configured to define a chamber to provide a container for a liquid product.  
     
     
         17 . The hollow packaging article of  claim 9  wherein said single layer wall structure is configured to define a chamber to provide a container for a food product.  
     
     
         18 . The hollow packaging article of  claim 9  wherein said single layer wall structure is configured to define a chamber to provide packaging suitable for cosmetic or pharmaceutical products.  
     
     
         19 . The hollow packaging article of  claim 9  wherein said polyethylene is a co-polymer of ethylene and a higher molecular weight alpha olefin.  
     
     
         20 . The hollow packaging article of  claim 19  wherein said alpha olefin is selected from the group consisting of butene, hexene, octene and 4-methyl pentene.  
     
     
         21 . The hollow packaging article of  claim 20  wherein said higher molecular weight alpha olefin is hexene.  
     
     
         22 . The hollow packaging article of  claim 9  wherein said single layer wall structure is formed of a metallocene-produced polyethylene homopolymer.