ALBERTA GAS CHEMICALS LIMITED AND ALBERTA GAS CHEMICALS, INCORPORATED, APPELLANTS, v. E.I. DU PONT DE NEMOURS AND COMPANY, DU PONT HOLDINGS, INC., AND CONOCO INC. No. 86-5662.United States Court of Appeals, Third Circuit.Argued February 25, 1987. Decided August 17, 1987. Rehearing and Rehearing In Banc Denied September 10, 1987. Page 1236 James M. Brachman (argued), […]