(19)

(11)

EP 0 646 039 A1

(12)

(43) Date of publication: 05.04.1995 Bulletin 1995/14 (21) Application number: 94903942.0 (22) Date of filing: 21.12.1993

(51) International Patent Classification (IPC):  B01D 46/ 00( . ) B01D 46/ 04( . ) B01D 46/ 52( . ) B01D 46/ 02( . ) B01D 46/ 24( . ) (86) International application number: PCT/GB1993/002619 (87) International publication number: WO 1994/014522 (07.07.1994 Gazette 1994/15)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.12.1992 DE 19920017529U (71) Applicant: SCAPA GROUP PLC Blackburn, Lancashire BB2 6AY (GB)	(72) Inventor: REBMANN, Joachim D-38640 Goslar (DE) (74) Representative: Goodwin, Mark, et al  Wilson, Gunn, M'Caw & Co., 41-51 Royal Exchange, Cross Street Manchester M2 7BD Manchester M2 7BD (GB)