Defect propagation resistant stretch films
AssigneeExxon Chemical Patents Inc.
InventorAnne M. Culotta
Life of this patent
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Abstract
A defect propagation resistant stretch film comprising a polymer of linear low density polyethylene and one or more copolymers selected from the group consisting of low density polyethylene, very low density polyethylene, and ultra low density polyethylene.
Claims2
A film comprising a polymer of linear low density polyethylene (LLDPE) and one or more copolymers selected from the group consisting of low density polyethylene (LDPE), very low density polyethylene (VLDPE), and ultra low density polyethylene (ULDPE).
A film comprising a polymer of linear low density polyethylene (LLDPE) and one or more copolymers selected from the group consisting of low density polyethylene (LDPE), very low density polyethylene (VLDPE), and ultra low density polyethylene (ULDPE), wherein the LLDPE comprises ethylene and at least one alpha olefin monomer selected from the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 3-methyl-1-pentene, 4-methyl-1-pentene, 1-octene, 1-decene, and 1-dodecene, the alpha olefin monomer having a content generally below about 1 to about 15 wt %;
- the LLDPE having:
- a) a melt index of from about 1 to about 5 dg/min;
- b) a density of from about 0.88 to about 0.94 g/cc;
- c) a molecular weight of from about 50,000 to about 200,000;
- d) a molecular weight distribution of from about 2 to about 4;
- e) a ratio of the third moment to the second moment below from about 1.6 to about 1.95;
- and
- f) a melt flow ratio from about 16 to about 18.
Dependencies are inferred from the claim text.