Aqueous polyolefin dispersion for packaging boards and papers, 2011 PaperCon Conference

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Various types of polyolefins are used in many industrial applications due to the combination of attractive performance attributes they offer. Extrusion coating has traditionally been the main technology for achieving relatively thin polyolefin coatings on a moving web.

Recently Dow introduced aqueous dispersions of polyolefins. The dispersions are produced by a proprietary mechanical dispersion technology. The delivery of polyolefins in a water-based dispersion enables the use of a variety of new coating application techniques available today for water or solvent borne systems. The delivery of polyolefins as aqueous dispersions introduces polyolefins into new application areas where current emulsions and binders are limited by their performance and where extrusion coating cannot be used or may not the most efficient coating method.

Aqueous dispersions of polyolefins offer the characteristics of polyolefins such as chemical resistance, thermoform ability, recyclability and adhesion to polyolefins in combination with a waterborne fabrication advantage. This presentation introduces the aqueous polyolefin dispersion technology with examples of application areas for the packaging industry where aqueous polyolefin dispersions provide synergies as well as new opportunities beyond extrusion coating of polyolefins.