Witco.Witco Witco brought on-stream a $25 million carbon black expansion in Ponca City Ponca City, city (1990 pop. 26,359), Kay co., N Okla., on the Arkansas River; founded 1893 with the opening of the Cherokee Strip, inc. 1899. It is a trade, processing, and shipping hub in a grain, livestock, and oil area. , OK, said to be the first grass roots grass roots pl.n. (used with a sing. or pl. verb) 1. People or society at a local level rather than at the center of major political activity. Often used with the. 2. The groundwork or source of something. carbon black unit to be built in the United States United States, officially United States of America, republic (2005 est. pop. 295,734,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third largest country in population and the fourth largest country in area. in the past 20 years. This capital investment increases Witco's total carbon black capacity by 25%. The new unit utilizes proprietary high-temperature reactor technology that provides both high efficiency and productivity for manufacture of tread-grade carbon blacks used by the tire industry. The expansion also allows the Concarb Division added capacity to make the patented LH (low hysteresis hysteresis (hĭs'tərē`sĭs), phenomenon in which the response of a physical system to an external influence depends not only on the present magnitude of that influence but also on the previous history of the system. ) carbon blacks, designed to help increase tire rolling resistance. |
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