(19)

(11)

EP 0 606 342 A1

(12)

(43) Date of publication: 20.07.1994 Bulletin 1994/29 (21) Application number: 92920818.0 (22) Date of filing: 23.09.1992

(51) International Patent Classification (IPC):  C07C 19/ 08( . ) F25B 1/ 00( . ) C09K 5/ 04( . ) (86) International application number: PCT/US1992/008065 (87) International publication number: WO 1993/007231 (15.04.1993 Gazette 1993/10)

(84) Designated Contracting States: AT BE CH DE ES FR GB GR IT LI NL SE (30) Priority: 03.10.1991 US 19910770688 (71) Applicant: AlliedSignal Inc. Morristown, New Jersey 07962-2245 (US)	(72) Inventors: LUND, Earl, August, Eugene West Seneca, NY 14224 (US) SHANKLAND, Ian, Robert Williamsville, NY 14220 (US) SINGH, Rajiv, Ratna Williamsville, NY 14221 (US) (74) Representative: Brock, Peter William  Urquhart-Dykes & Lord 1 Richfield Place Richfield Avenue Reading RG1 8EQ Berkshire Reading RG1 8EQ Berkshire (GB)