The new Bioplastics Div. of Teknor Apex Co., Pawtucket, R.I., has expanded its brand-new line of Terraloy compounds with a blend of HIPS and up to 30% thermoplastic starch (TPS). Introduced last June at NPE 2009, Terraloy is based on technology licensed from Cerestech Inc., Montreal.

The new Bioplastics Div. of Teknor Apex Co., Pawtucket, R.I., has expanded its brand-new line of Terraloy compounds with a blend of HIPS and up to 30% thermoplastic starch (TPS). Introduced last June at NPE 2009, Terraloy is based on technology licensed from Cerestech Inc., Montreal. Terraloy HIPS/TPS blends now join blends of TPS with PP, LLDPE, or biodegradable (but petrochemical-based) polyester.
Terraloy BP-18003A (HIPS/TPS) is not biodegradable but offers the ability to incorporate renewable content in HIPS products, while maintaining typical HIPS properties. This is said to be the first PS/starch blend that can substitute completely for HIPS in many applications, without the dramatic loss of properties seen in previous blends, in which starch acted only as a filler. Teknor says no change in tooling is needed to switch from HIPS to BP-18003A.

Here are some properties:

Density 1.10 g/cc

MFR 10.3 g/10 min

Tensile modulus 255,300 psi

Tensile str., max. 2522 psi

Elongation @ break 17%

Flexural modulus 220,159 psi

Notched Izod impact 1.9 ft-lb/in.

Gloss 11.8%

Teknor also offers Terraloy MB-

18003A, a HIPS masterbatch with up to 50% TPS. It should be let down 1:1.

(401) 725-8000 • teknorapex.com


Teknor Apex Co.
505 Central Ave. Pawtucket, RI 02861
Phone (401) 725-8000 Fax (401) 729-0166