Poly olefin Dispersions, an Aqueous Moisture barrier

摘要

Polyolefins are used extensively in many industries due to the attractive combination of attributes they offer. Specifically Polyolefins are used extensively in extrusion coating paper applications for attributes such as moisture barrier. Recently Dow has introduced mechanical dispersions of Polyolefins which allows delivery of these polymers via low viscosity application techniques in an aqueous environment. This paper will discuss how these polyolefin dispersions can be used to combine moisture vapor barrier with other attributes such as i.e. good heat sealability, low temperature flexibility, adhesion to polar substrates and the ability to accept inorganic fillers. Polyolefin dispersions (PODs) can be applied using traditional low-viscosity application techniques, which include printing operations such as rotogravure. This combination of properties makes these materials ideal for use as a laminating adhesive and as a heat-sealable coating.