(19)

(11)

EP 0 202 264 A1

(12)

(43) Date of publication: 26.11.1986 Bulletin 1986/48 (21) Application number: 85905521.0 (22) Date of filing: 04.11.1985

(51) International Patent Classification (IPC):  B01J 8/ 16( . ) C10J 3/ 20( . ) C10J 3/ 86( . ) C10J 3/ 02( . ) C10J 3/ 58( . ) (86) International application number: PCT/GB1985/000498 (87) International publication number: WO 1986/002940 (22.05.1986 Gazette 1986/11)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 09.11.1984 GB 19840028329 (71) Applicant: Willis, James David Letchworth Hertfordshire SG6 4TD (GB)	(72) Inventor: Willis, James David Letchworth Hertfordshire SG6 4TD (GB) (74) Representative: Oliver, Roy Edward, et al  W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)