Green Matter: Green SAPs prove real suckersGreen Matter: Green SAPs prove real suckers

First, there were the superabsorbent polymers, those fantastical plastics that had the capability to absorb and hold up to 500 times their own weight in liquid-even under pressure.  Also called 'super slurpers', they debuted commercially in sanitary napkins in the seventies and were soon being used around the world in a host of products ranging from potting soil and fragrance carriers to  diapers, incontinence pads and artificial snow. It's a market that just keeps on expanding.And now these superabsorbent polymers, or SAPs, come in green versions as well.