PP Impact Copolymer Is Clear, Stiff & Tough

A new polypropylene impact copolymer for injection molding frozen-food packaging and freezer-to-microwave containers as well housewares and toys, boasts an excellent balance of high flow, clarity, and gloss plus stiffness and low-temperature toughness.

A new polypropylene impact copolymer for injection molding frozen-food packaging and freezer-to-microwave containers as well housewares and toys, boasts an excellent balance of high flow, clarity, and gloss plus stiffness and low-temperature toughness. Clyrell EC140R is the latest addition to a new line of heterophasic (impact) copolymers produced with the Catalloy process by Basell Polyolefins, Elkton, Md. Due to its outstanding clarity, Basell says, products can be transparent, tinted or molded in solid or bright colors with high gloss, and have the added benefit of minimal stress whitening. The 30-MFR resin has a tensile modulus of 123,250 psi and notched Charpy impact at -20 C of 4 KJ/m2. A 0.4-mm-thick plaque shows 9% haze and 98% light transmission.