Injection blow moulded single layer metallocene polyethylene container
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.