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ExxonMobil’s two new grades of polyethylene (PE), Exceed XP 7021 and Exceed XP 7052, provide film processors and end users with benefits in a variety of applications from primary packaging to greenhouse agriculture.

These two products combine low density (0.911-0.912 g/cm³) and fractional melt index (MI) to produce films with enhanced bubble stability and potentially increase the output of the converter.

In general, the new polymer offers a variety of properties not previously available in a single resin. Product attributes include high levels of elasticity and retention, puncture energy (up to 2.3 joules/mil) and resistance to dart impact (up to 900 grams on 25.4 micron film).

Product applications include stretch hood films for wrapping pallet goods; finishing shrink films for consumer product packaging; films for primary packaging; and agricultural films for greenhouse fences.

For stretch hood packaging film processors, the new polymer has the dual advantages of high elastic recovery and high retention, thereby improving tray stability and enhancing product protection and safety. The stretch mask film also has high puncture resistance and dart impact resistance and low haze, which improves barcode and quick response (QR) code reading. According to ExxonMobil, these films are as flexible as hydrolyzed ethylene vinyl acetate (HEVA).

Packers using finishing shrink films made from the new polymer may save energy costs because the film is compatible with high shrink speeds at temperatures as low as 120°C/248°F. This low temperature is particularly beneficial to packagers of heat-sensitive products. In addition, packers who have used cardboard or corrugated pallets and shrink film may find that they no longer need pallets.

In the heat-sealing application of primary packaging, brand owners and co-packers using films made of Exceed XP 7021 and Exceed XP 7052 can seal the package at low temperatures without agglomeration (ie, the film’s Adjacent layers are glued together). These polymers are specifically designed for low seal initiation temperature (SIT) packaging applications. They improve the durability of the packaging through good optical properties and high flex cracking, dart impact and puncture resistance.

Finally, greenhouse growers will appreciate the properties of the film made from the new polymer. These greenhouse films are tough, transparent, and soft. In addition, they are extremely resistant to darts and punctures. Therefore, the film reduces the risk of failure and premature breakage during installation and maintenance.

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