250 Bettina [SEP] discoverer or inventor
250 Bettina
Bettina (minor planet designation: 250 Bettina) is a large main belt asteroid that was discovered by Austrian astronomer Johann Palisa on September 3, 1885, in Vienna. It was named in honour of Baroness Bettina von Rothschild (née de Rothschild; 1858–1892)), wife of Baron Albert von Rothschild who had bought the naming rights for £50. Based upon the spectrum, it is classified as an M-type asteroid.
In 1988, the asteroid was observed from the Collurania-Teramo Observatory,
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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