Cold Use Food Container Injection Compound (PLA/PBAT, FDA)

About This Product

A melt-compounded blend of polylactic acid and polybutylene adipate terephthalate, pelletised for injection moulding. PLA provides the stiffness, gloss and clarity of the wall; PBAT, an aliphatic-aromatic copolyester, is dispersed through it as a soft phase. Because it is a compounded blend it has no single CAS number. It is supplied FDA compliant for food contact. Cold-chain food containers do not need heat resistance, which frees the formulation to optimise for clarity, stiffness and impact at refrigerated temperatures, where many polymers become brittle. Low-temperature impact is a ductile-to-brittle transition: as the wall is chilled the polymer has less molecular mobility available to blunt a crack tip, and unmodified PLA is glassy and notch-sensitive well before it reaches the back of a chiller. The dispersed PBAT phase stays soft at those temperatures and absorbs that crack energy, so this grade is formulated for that duty: it keeps impact resistance at chill temperatures so a dropped pack does not shatter. For hot food or reheating, use the hot-use grade. Supplied as a raw material for processing on the buyer's own line. We do not produce finished articles. It is used in chilled food containers, salad and deli packs and dessert packaging. Bio Green Chem supplies this cold-use food container injection compound to specification on polymer base, pellet form, melt flow, clarity and FDA food-contact compliance.