Sony and a polystyrene recycling process? (Score 2, Interesting)

I went to the Metreon in SF and saw a display/exhibit on how Sony has been working on a way to recycle polystyrene, since they use it to box and protect all their electronics (like the custom molded bricks for TV boxes). Supposedly they used d-Limonene, an oil from lemon and orange peels, to dissolve the polystyrene while keeping the polymer chains long. I think limonene is also found in some cleaners because of its solvent properties. Keeping the chains long was important because when you recycle the material to make fresh "foam", the longer the chains, the stronger the material, hence other methods of recycling resulted in weaker material due to more chain-breaking.

I think they even claimed it was implemented in Japan (I have no idea if this is true or not), with trucks that could pick up styrofoam and dissolve it en route, meaning they could pick up a LOT of material because most of the volume of styrofoam is air. Back at the processing plant, they clean the solution with filtering, recover the polymer chains, and make new materials, even stuff like pens, not just new styrofoam.

In short, does anyone know more about this, and why it hasn't been brought to the US? (besides our suckage at most things environmentally friendly)