Two new acrylic additives for packaging made from polylactic acid (PLA) biopolymer have been introduced by Rohm and Haas Co., Philadelphia: Paraloid BPMS 250 melt-strength enhancer reportedly improves processing of PLA and its alloys used in clear packaging such as thermoformed clamshell food containers. Just 2% of this additive reportedly increases melt elasticity without affecting clarity, enabling high line speeds. It reportedly complies with FDA requirements and EU Directive 2002/72/EC. Paraloid BPM 515 impact modifier does not impart as high clarity as the Paraloid BPM 500 product introduced last year, but BPM 515 is more efficient, requiring lower use levels—as little as 2%. It can thus cut the cost of impact modification by up to half compared with BPM 500. (215) 592-3000 • www.rohmhaas.com
Rohm and Haas Co.
P.O. Box 1310 Philadelphia, PA 19106