(19)

(11)

EP 0 243 453 A1

(12)

(43) Date of publication: 04.11.1987 Bulletin 1987/45 (21) Application number: 86906575.0 (22) Date of filing: 06.10.1986

(51) International Patent Classification (IPC):  B22D 11/ 06( . ) (86) International application number: PCT/US1986/002125 (87) International publication number: WO 1987/002284 (23.04.1987 Gazette 1987/09)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.10.1985 US 19850786789 (71) Applicant: BATTELLE DEVELOPMENT CORPORATION Columbus, OH 43201-2693 (US)	(72) Inventors: BARTLETT, Edwin, S. Worthington, OH 43085 (US) MARINGER, Robert, E. Worthington, OH 43085 (US) RAYMENT, Judith, J. Columbus, OH 43201 (US) (74) Representative: Dousse, Blasco  7, route de Drize CH-1227 Carouge/Genève CH-1227 Carouge/Genève (CH)