477 Italia [SEP] discoverer or inventor
477 Italia
Italia (minor planet designation: 477 Italia) (1901 GR) is a main-belt asteroid that was discovered on 23 August 1901 by Italian astronomer Luigi Carnera at Heidelberg.
Photometric observations of this asteroid collected in 2005 gave a provisional rotation period of 19.4189 hours and a brightness variation of about 0.2 in magnitude.
Fritz Klatte
Fritz Klatte (28 March 1880, Diepholz – 11 February 1934) was a German chemist and the discoverer of polyvinyl acetate, with German patent (GP 281687 1912) for its preparation from acetylene gas.
Polyvinyl chloride (PVC) was discovered by French physicist Henri Victor Regnault, and German physicist Eugen Baumann. Klatte designed the production process, although never successfully commercialised it. Klatte is sometimes incorrectly attributed to be the discoverer or inventor of PVC.
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