polymer discovery By daniii00008 1845 Nitrocellulose 1865 celluloid 1908 rayon 1909 bakeite 1920 cellophane 1921 neoprene 1926 PVC 1935 nylon 1936 polyethylene 1938 teflon 1949 Tupperware 1966 Kevlar 1979 Pollysteramides
