1. Process and Production Technology Center, Sumitomo Chemical Co. Ltd., 1-98, Kasugadenaka 3-chome, Konohana-ku, Osaka 554-8558, Japan, Tsukuba Laboratory, Sumitomo Chemical Co. Ltd., Kitahara 6, Tsukuba 300-3294, Japan, and Department of Chemical Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan