(19)

(11)

EP 0 103 585 A1

(12)

(43) Date of publication: 28.03.1984 Bulletin 1984/13 (21) Application number: 83900728.0 (22) Date of filing: 25.02.1983

(51) International Patent Classification (IPC):  C22C 29/ 00( . ) C22C 29/ 02( . ) C22C 29/ 06( . ) C22C 1/ 05( . ) C22C 29/ 04( . ) C22C 29/ 08( . ) (86) International application number: PCT/GB1983/000056 (87) International publication number: WO 1983/003262 (29.09.1983 Gazette 1983/23)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 11.03.1982 GB 19820007117 (71) Applicant: METALLURG, INC. New York, NY 10016 (US)	(72) Inventors: HALL, Fred Woodcock London & Scandinavian South Yorkshire S60 1DL (GB) RETELSDORF, Hans-Joachim Gesellschaft für Postfach 2844 D-8500 Nürnberg 1 (DE) (74) Representative: Oliver, Roy Edward, et al  W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)