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Dow introduces an Enhanced LLDPE Resin for High-Throughput Flexible Packaging Films

Published on 2009-11-27. Author : SpecialChem

HORGEN, Switzerland -- Dow Europe GmbH ("Dow") reinforced its reputation as one of the leading suppliers of flexible packaging film resins by introducing an enhanced linear low density polyethylene (LLDPE) resin for high-throughput lamination and protective film applications. XZ 89446.00 Polyethylene Resin is a new higher-alpha polyolefin copolymer LLDPE specifically designed for high conversion rate processability and improved seal through contamination performance for both blown and cast flexible packaging film structures.

"Flexible packaging manufacturers are increasingly demanding blown and cast film resins that offer excellent processability on film conversion equipment and packaging lines, without impacting film performance," said Sander van Veen, Dow's Market Manager for Food and Specialty Packaging in Europe, the Middle East, India and Africa. "XZ 89446.00 addresses this need on both counts, exhibiting the physical and mechanical charateristics to make it a preferred choice for high-throughput lamination and protective film applications."

The new resin, which can be used alone or in blends with low density polyethylene (LDPE), has a 2 g/10-minutes Melt Flow index (MFI: 190°C/2.16 kg) and a density of 0.916 g/cm3. Its high-throughput processability, made possible by an exceptional polymer design, can offer clear advantages when compared to similar melt flow index resins, including equivalent metallocene linear low density polyethylene (mLLDPE) resins. The polymer design of XZ 89446.00 will potentially reduce overall processing costs in three ways: by helping to lower energy consumption by enabling processing at lower temperatures; by leveraging higher throughput efficiency to help improve the unit cost of producing films; and by helping reducing wear and tear costs for conversion equipment as a result of processing with lower extruder pressures.

For blown film lamination applications, such as for dry or frozen food packaging, XZ 89446.00 can provide improved seal through contamination performance with low seal and low hot-tack initiation temperatures. When tested against a comparable polyethylene resin used for such applications, XZ 89446.00 sealed at lower initiation temperatures by approximately 10°C.

For use in protective film applications, such as films used on glass, plastic sheet, appliances or consumer electronics products, the new resin's higher melt flow offers smoother, flatter film surfaces with good optics, continuous high quality processing (low gels) and good chemical resistance.

About Dow

Dow is a diversified chemical company that combines the power of science and technology with the "Human Element" to constantly improve what is essential to human progress. The Company delivers a broad range of products and services to customers in approximately 160 countries, connecting chemistry and innovation with the principles of sustainability to help provide everything from fresh water, food and pharmaceuticals to paints, packaging and personal care products. In 2008, Dow had annual sales of $57.4 billion and employed approximately 46,000 people worldwide. The Company has 150 manufacturing sites in 35 countries and produces approximately 3,300 products. On April 1, 2009, Dow acquired Rohm and Haas Company, a global specialty materials company with sales of $10 billion in 2008, 98 manufacturing sites in 30 countries and approximately 15,000 employees worldwide. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted.

Source: Dow


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