Where a contract did not obligate a buyer to buy a fixed quantity, the contract was not a requirements contract.The 7th U.S. Circuit Court of Appeals reversed a decision by U.S. Magistrate Judge Roger B. Cosbey, Northern District of Indiana.Continental Carbon Co. sells carbon black, a material used in rubber products. BRC Rubber & Plastics makes rubber products for the automotive industry. The companies contracted in January 2010 for Continental to supply carbon black to BRC.By April 2011, Continental was struggling to …