Dow Chemical Co. has expanded its lineup of Versify plastomers and elastomers with eight new grades.
Six new plastomer grades of the propylene-ethylene copolymers include four for flexible packaging. Versify 2000, 2200, 3000 and 3200 provide new combinations of heat-sealability, shrink, optics, modulus and adhesion to polypropylene and polyethylene. The other two plastomers are aimed at uses requiring easier flow such as injection molding and extrusion coating. These two combine toughness, processability and modulus, and complement conventional PP resins.
Versify 2400 elastomer is well-suited to extrusion, calendering and thermoplastic elastomer applications. Dow of Midland, Mich., claims it is readily formulated to provide balanced flexibility, heat resistance, durability and optical properties.
Versify 3401 is particularly suitable for impact modifying PP to make transparent goods by injection molding and thermoforming. It can boost mechanical properties of cast film without any special blending or compounding equipment.
Dow introduced Versify materials in 2004 and says novel catalysts and the firm's Insite polymerization process allow precise control of the polymer's microstructure, and thus its properties.
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