Polyphosphoric acid, pure, > 84% phosphate (as P2O5)..
Polysulfone resin, pellets, approx. M.W. 60,000..
Polyvinylpyrrolidone, average M.W. 1.300.000, K85-95..
Polyvinylpyrrolidone, average M.W. 3500, K12..
Polyvinylpyrrolidone, average M.W. 50.000, K30..
Polyvinylpyrrolidone, average M.W. 8.000, K16-18..
Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000..