(19)

(11)

EP 0 471 798 A1

(12)

(43) Date of publication: 26.02.1992 Bulletin 1992/09 (21) Application number: 90911041.0 (22) Date of filing: 30.04.1990

(51) International Patent Classification (IPC):  B22D 11/ 06( . ) (86) International application number: PCT/US1990/002387 (87) International publication number: WO 1990/013377 (15.11.1990 Gazette 1990/26)

(84) Designated Contracting States: DE FR GB (30) Priority: 01.05.1989 US 19890345254 (71) Applicant: ALLIED-SIGNAL INC Morristown, NJ 07962-2245 (US)	(72) Inventors: DAS, Santosh, Kumar Randolph, NJ 07869 (US) BYE, Richard, Lister, Jr. Morristown, NJ 07960 (US) LOBOVSKY, Alexander New Providence, NJ 07974 (US) (74) Representative: Brock, Peter William, et al  Urquhart-Dykes & Lord 1 Richfield Place Richfield Avenue Reading RG1 8EQ Berkshire Reading RG1 8EQ Berkshire (GB)