(19)

(11)

EP 0 855 992 A1

(12)

(43) Date of publication: 05.08.1998 Bulletin 1998/32 (21) Application number: 96939479.0 (22) Date of filing: 18.10.1996

(51) International Patent Classification (IPC):  B01J 20/ 04( . ) C01G 23/ 00( . ) B01J 39/ 08( . ) E04H 15/ 20( . ) (86) International application number: PCT/US1996/016753 (87) International publication number: WO 1997/014652 (24.04.1997 Gazette 1997/18)

(84) Designated Contracting States: FR GB (30) Priority: 20.10.1995 US 19950546041 (71) Applicant: AlliedSignal Inc. Morristown, New Jersey 07962-2245 (US)

(72) Inventors: CAHILL, Roy College Station, TX 77840 (US) CLEARFIELD, Abraham College Station, TX 77840 (US) ANDREN, Christopher Oakwood Hills, IL 60017 (US) DEFILIPPI, Irene, C., G. Palatine, IL 60067 (US) SEDATH, Robert, Henry Bensenville, IL 60106 (US) SEMINARA, Gary, Joseph Chicago, IL 60638 (US) STRASZEWSKI, Michael, Peter Novi, MI 48375 (US) WANG, Li Bloomingdale, IL 60108 (US) YATES, Stephen, Frederic Arlington Heights, IL 60005 (US) (74) Representative: Brunner, Michael John, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)