Teknor Apex Licenses Innovative Starch-Blend Technology from Cerestech

Posted: November 2, 2009

Teknor Apex Company has signed a licensing agreement with Cerestech Inc. on a unique method for blending relatively low-cost thermoplastic starch (TPS) with synthetic polymers or other bioplastics while retaining high levels of key performance properties.

The agreement grants Teknor Apex exclusive worldwide rights to manufacture and market products based on Cerestech's patented technology and to sub-license use of the blending process. The technology involves preparing TPS from starch granules and then combining it as a masterbatch with bioplastics like polylactic acid (PLA) or polyhydroxyalkanoates (PHA), or with petrochemical-based polymers such as polyethylene.

"Teknor Apex is making this entry into the growing bioplastics market as a first step toward developing a family of bio-sustainable compounds," says Dr. Robert S. Brookman, v.p. for business development. "We intend to provide a range of options for customers looking to offer products that derive from renewable resources."

The Cerestech process is based on patented technology developed by Dr. Basil Favis, who founded Cerestech Inc. as a spinoff company from the École Polytechnique de Montréal. The technology makes it possible to combine other polymers with TPS from vegetable sources like corn, wheat, or potato while achieving better performance properties than are typical for conventional starch-containing blends.

"The Cerestech technology yields blends that, even at high starch loadings, retain a substantial portion of the mechanical properties of the bioplastic or synthetic base polymers," says Dr. John Andries, Teknor Apex senior v.p. of technology. "They exhibit lower levels of sensitivity to moisture than many other starch-containing plastics, are translucent, printable, and sealable, and can be formulated for biodegradable applications."

The company is installing a pilot plant at its world headquarters in Pawtucket, RI, where commercial production is anticipated to begin in 2009. Sales inquiries and sample requests should be directed to Edwin Tam, manager of strategic initiatives for Teknor Apex, at or at 401-725-8000.