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IG Farben was a German chemical industry conglomerate. Its name is taken from ''Interessen-Gemeinschaft Farbenindustrie AktienGesellschaft'' (Plc Syndicate ("community of interests" ) of dye-making corporations). The company was formed in 1925 from a number of major chemical companies that had been working together closely since World War I. During its heyday, IG Farben was the largest chemical company in the world and the fourth largest overall industrial concern, after General Motors, U.S. Steel, and Standard Oil of New Jersey. IG Farben scientists made fundamental contributions to all areas of chemistry. Otto Bayer discovered the polyaddition for the synthesis of polyurethane in 1937. Several IG Farben scientists were awarded Nobel Prizes. Carl Bosch and Friedrich Bergius were awarded the Nobel Prize in Chemistry in 1931 "in recognition of their contributions to the invention and development of chemical high pressure methods". Gerhard Domagk was awarded the Nobel Prize in Physiology or Medicine in 1939 "for the discovery of the antibacterial effects of prontosil". Kurt Alder was awarded the Nobel Prize in Chemistry in 1950 for his "discovery and development of the diene synthesis". Following the Nazi takeover of Germany, the company became embroiled in the Nazi regime's policies as a large government contractor. In 1951, IG Farben was split into its four largest original constituent companies, which remain some of the world's largest chemical and pharmaceutical companies. The current main successor companies are AGFA, BASF, Bayer and Sanofi. ==Founding members== IG Farben was founded on December 25, 1925, as a merger of the following six companies: * BASF * Bayer * Hoechst (including Cassella and Chemische Fabrik Kalle) * Agfa * Chemische Fabrik Griesheim-Elektron * Chemische Fabrik vorm. Weiler Ter Meer 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IG Farben」の詳細全文を読む スポンサード リンク
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