PARIS (March 19)—Atofina S.A. is negotiating the possible sale of at least part of its styrenic elastomers business to Asahi Kasei Corp. of Japan. "There are negotiations, but there are no conclusions to these yet," an Atofina spokeswoman said today. Early last year, Asahi signaled plans to collaborate with a European chemical supplier in the performance elastomers area. The company did not reveal the identity of any potential partners at the time. Any tie between Asahi and Atofina probably will center on the Japanese group's hydrogenated styrene butadiene block copolymer technology. Atofina has been looking to add SEBS products to its more conventional styrene-butadiene-styrene product portfolio. Atofina Elastomers operates a 100,000 metric ton-per-year plant in Antwerp, Belgium, producing Finaprene- and Finaclear-branded styrenic elastomers.