History
The Union Carbide and Carbon Corporation was formed in 1917 from the merger of the former Union Carbide founded in 1898 and the National Carbon Company founded in 1886. These companies made carbon rods for arc lights and electrodes for electric arc furnaces, and produced aluminium. Other companies merged included Linde Air Products, maker of liquid oxygen, Prest-O-Lite, manufacturer of calcium carbide, and Electro Metallurgical. In 1920 the company set up a chemicals division which manufactured ethylene glycol for use as automotive antifreeze. The company continued to acquire related chemical producers, for example, the Bakelite Corporation became a division in 1939. The company changed its name to "Union Carbide Corporation" in 1957 and often referred to as Carbide.
Ucar batteries was Carbide's industrial and consumer zinc chloride battery business. The business including Energizer alkaline batteries was sold to Ralston Purina in 1986, following a hostile takeover attempt.
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