Masterbatch eliminates taste odor molecules in plastics packaging

03-Jan-06

A masterbatch that helps control taste and odor in plastics film applications for trash bags and flexible food packaging has been introduced by Ampacet. Several other end uses including injection blow molded and extrusion blow-molded containers, beverage bottle tops, polyolefin pipe and extrusion coatings can also benefit with the use of this new product. Ampacet 101787 removes taste and odor-causing molecules in low density polyethylene (LDPE), linear LDPE and ethylene vinyl acetate films for use in food and nonfood packaging and other applications. The active ingredient in Ampacet 101787 is highly porous and preferentially adsorbs smaller, odor-causing molecules, especially ammonium-based (nitrogen-based) and polar compounds. Being moderately hydrophobic, it readily removes organic and inorganic compounds in the presence of water. This high-surface-area material entraps offensive compounds originating either from outside or inside a package or from the resin itself, when placed in a polymer structure. The masterbatch is effective at relatively low loadings and is typically used at letdown ratios between 3 and 5%.