The “Paxymer” halogen-free, non-toxic flame retardant produced by Sweden’s Paxymer (Vällingby; www.paxymer.se) has been approved in the US. The patent opens up the possibility for international collaborations, the company said. In Europe, Paxymer filed for a patent for the material, which is designed to synergistically interact with existing halogen-free systems, in 2006.

The system of Paxymer, which is a spin-off of PP Polymer (Vällingby / Sweden; www.pppolymer.se), propagates a cross-linking of the polymer backbone. This results in lower heat release rates, less toxic smoke and non-dripping fire performance, making the burning behaviour of plastics safer, Paxymer said (for details, see also Plasteurope.com of 30.03.2012). Use of Paxymer does not impact recyclability, the company added.