PVC was geared up via the French chemist Henri Victor Regnault in 1835 and then through the German chemist Eugen Baumann in 1872, but it was not patented until eventually 1912, when A different German chemist, Friedrich Heinrich August Klatte, made use of daylight to initiate the polymerization of vinyl https://s90501.pennywiki.com/4623712/the_definitive_guide_to_pvc