An iconic brand, tic tac mints, is making the switch in its rectangular packages from polystyrene ps to polypropylene pp under the banner of better recyclability. While the news is not necessarily huge, it represents another switch away from rigid ps due to recycling issues. Tic tac&rsquos parent, the ferrero co., claims the switch will allow the packages to be recycled, an aspect the company said was less available with ps packaging.