(19)

(11)

EP 0 713 526 A1

(12)

(43) Date of publication: 29.05.1996 Bulletin 1996/22 (21) Application number: 94922322.0 (22) Date of filing: 10.08.1994

(51) International Patent Classification (IPC):  C11D 13/ 00( . ) C11D 13/ 16( . ) C11D 13/ 14( . ) C11D 17/ 00( . ) (86) International application number: PCT/GB1994/001745 (87) International publication number: WO 1995/005450 (23.02.1995 Gazette 1995/09)

(84) Designated Contracting States: DE FR GB (30) Priority: 13.08.1993 GB 19930016900 (71) Applicant: HECHT, Samuel Edgeware Middlesex HA8 7PE (GB)	(72) Inventor: HECHT, Samuel Edgeware Middlesex HA8 7PE (GB) (74) Representative: Webb, Andrew John, et al  J.A. Kemp & Co., 14 South Square, Gray's Inn London WC1R 5LX London WC1R 5LX (GB)