Nylon was the first commercially successful synthetic thermoplastic polymer.[6] DuPont began its research project in 1927.[2] The first example of nylon, (nylon 6,6), was synthesized using diamines on February 28, 1935 by Wallace Hume Carothers at DuPont's research facility at the DuPont Experimental Station.[8][9] In response to Carothers' work, Paul Schlack at IG Farben developed nylon 6, a different molecule based on caprolactam, on January 29, 1938.[10]:10[11]