(19)

(11)

EP 0 281 594 A1

(12)

(43) Date of publication: 14.09.1988 Bulletin 1988/37 (21) Application number: 87905774.0 (22) Date of filing: 09.09.1987

(51) International Patent Classification (IPC):  B01J 13/ 00( . ) C07F 5/ 06( . ) C07F 7/ 04( . ) C04B 35/ 632( . ) C07F 7/ 00( . ) (86) International application number: PCT/GB1987/000630 (87) International publication number: WO 1988/001991 (24.03.1988 Gazette 1988/07)

(84) Designated Contracting States: BE DE FR GB IT LU NL (30) Priority: 09.09.1986 GB 19860021714 (71) Applicant: MANCHEM LIMITED London SW1P 1HT (GB)	(72) Inventors: ADAM, Ayub, Mahomed Bolton Lancashire BL1 6PE (GB) EMBLEM, Harold, Garton Merseyside PR8 5DY (GB) MacKINNON, Ian, Malcolm Hale, Nr. Altrincham Cheshire WA15 8SA (GB) WOMERSELY, Peter Stockport Cheshire (GB) (74) Representative: Orchard, Oliver John  JOHN ORCHARD & CO. Staple Inn Buildings North High Holborn London WC1V 7PZ London WC1V 7PZ (GB)