Teknor Apex manufactures the blends using a patented process that incorporates high levels of starch without the usual substantial falloff in the physical properties of the host polymer, noted Edwin Tam, manager of strategic initiatives. “Many processors are looking for ways to help customers meet sustainability goals by incorporating 'green' content but are discouraged by the property tradeoffs often involved,” Tam said. “Our Terraloy products can help them meet sustainability goals while still obtaining performance comparable to those of standard polypropylene.”
Teknor Apex recommends the new blends for use in injection molded containers, extruded sheet, and blow molded jars and bottles.
Terraloy® BP-13020 ready-to-process compounds are blends of 25 to 30% TPS and 70 to 75% PP, of which 70 to 75% is recyclate. Terraloy® MB-13020 masterbatches have 35 to 50% TPS content and up to 50% recyclate. Customers can use the masterbatches in a 1:1 letdown with either virgin or recycled PP.