"vinyl alcohol (PVA), polyvinyl chloride and polyvinylpyrrolidone), polyamides including nylon, polystyrene, polylactic acids, fluorinated hydrocarbon polymers, fluorinated carbon polymers (such as, for example, polytetrafluoro-ethylene), acrylate, methacrylate, and polymethylmethacrylate, and derivatives thereof." . . . . . .