Polyolefins and blowing technology for a lightweight bottle

Borealis and Trexel have developed a reusable and recyclable bottle made of polypropylene with attributed bio-circular content, made lighter by the use of MuCell foaming technology applied to blowing.

MuCell foaming process at microcellular level developed by Trexel involves the introduction of nitrogen in the supercritical fluid state inside the melted mass, causing an expansion of the polymer inside mould cavities. Among the benefits, it is worth highlighting the piece density reduction (by even 20%), with saving of raw materials, and of energy, without affecting mechanical properties and aesthetics.

Polyolefins by Borealis, called Bornewables@, can boast a small carbon footprint thanks to the use of renewable materials attributed through certified mass balance, maintaining the same performances as resin.