(19)

(11)

EP 0 451 149 A1

(12)

(43) Date of publication: 16.10.1991 Bulletin 1991/42 (21) Application number: 89910307.0 (22) Date of filing: 06.09.1989

(51) International Patent Classification (IPC):  C07C 19/ 12( . ) C11D 7/ 50( . ) C23G 5/ 032( . ) C11D 7/ 30( . ) C23G 5/ 028( . ) H05K 3/ 26( . ) (86) International application number: PCT/US1989/003838 (87) International publication number: WO 1990/007568 (12.07.1990 Gazette 1990/16)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 27.12.1988 US 19880290124 17.01.1989 US 19890297467 29.03.1989 US 19890330252 01.05.1989 US 19890345732 (71) Applicant: ALLIED-SIGNAL INC Morristown, NJ 07962-2245 (US)	(72) Inventors: SWAN, Ellen, Louise Ransomville, NY 14131 (US) BASU, Rajat, Subhra Williamsville, NY 14221 (US) SHANKLAND, Ian, Robert Williamsville, NY 14221 (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)