Exemplary types of polymers include polystyrenes, polyvinyl chlorides, polyesters, polyethylene terephthalates, low density polyethylenes, polypropylenes, apolyamides, acrylonitrite butadiene styrenes, {HEAD ~ polycarbonates}, polycarbonate/acrylonitrite butadiene styrene blends, {TAIL ~ polyurethanes}, melamine formaldehydes, plastics, and elastomeric plastics 
Exemplary types of polymers include polystyrenes , polyvinyl chlorides , polyesters , polyethylene terephthalates , low density polyethylenes , polypropylenes , apolyamides , acrylonitrite butadiene styrenes , { HEAD ~ polycarbonates } , polycarbonate / acrylonitrite butadiene styrene blends , { TAIL ~ polyurethanes } , melamine formaldehydes , plastics , and elastomeric plastics
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