BPI Certifies as Compostable a Series of Starch-Blend Compounds from Teknor Apex for Film, Sheet, and Molded Parts

Blends of thermoplastic starch (TPS) and biodegradable copolyester (PBAT) recently introduced by Teknor Apex Company have received certification by the Biodegradable Products Institute (BPI) as products for commercial composting applications, it was announced today by the Bioplastics Division of Teknor Apex.
Terraloy™ 20000 Series compounds received the BPI Listing after passing requirements specified in the ASTM D6400 standard for plastics intended for composting. The listing applies to sheet, film, and thermoformed or molded parts with maximum thickness of 250 mils (0.250 in.).
Teknor Apex recommends the compounds for replacing polyolefins and polystyrene in applications such as shrink wrap, produce wraps and trays, cosmetics jars and containers, carrier bags, can liners, trays and plates, cutlery, and flower pots.

“Because 100% TPS biodegrades much more rapidly than 100% PBAT, the blends of these materials making up the Terraloy 20000 Series open new applications for PBAT,” said Edwin Tam, Teknor Apex manager of strategic initiatives. “Plastics processors can use Terraloy compounds to produce thicker sheet and parts than with PBAT alone and still meet requirements for compostability.”

BPI is a professional association of individuals and groups from government, industry and academia that promotes the use and recycling of biodegradable polymeric materials via composting, noted executive director Steve Mojo. “Compostable products make it possible to divert the waste stream away from landfills or incinerators, and replacing non-degradable products with compostable ones helps reduce the processing, separation, and disposal costs incurred by composting facilities.”