As packaging applications become more demanding, film extruders look for resins with a combination of properties, including strength, clarity and stiffness. Many conventional resins, such as high-pressure low density polyethylene are clear, but lack the overall balance of toughness and stiffness that some applications require. Linear low density polyethylenes provide increased toughness and stiffness, but lack the high gloss and low haze required for high clarity applications. To achieve better film clarity, some extruders use lower density linear polyethylenes, thus sacrificing stiffness. A new polyethylene that combines good stiffness, clarity and toughness is now available for these demanding applications.
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