(19)

(11)

EP 0 752 026 A1

(12)

(43) Date of publication: 08.01.1997 Bulletin 1997/02 (21) Application number: 95906431.0 (22) Date of filing: 26.01.1995

(51) International Patent Classification (IPC):  D21F 3/ 00( . ) D21F 3/ 02( . ) (86) International application number: PCT/GB1995/000151 (87) International publication number: WO 1995/025200 (21.09.1995 Gazette 1995/40)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 15.03.1994 GB 19940004960 (71) Applicant: SCAPA GROUP PLC Blackburn, Lancashire BB2 6AY (GB)	(72) Inventors: SAYERS, Ian Christison Ribchester, Nr Preston, Lancs PR3 3XT (GB) JEFFERY, John Blackburn, Lancashire BD1 8RJ (GB) (74) Representative: Goodwin, Mark  Wilson, Gunn, M'Caw, 41-51 Royal Exchange, Cross Street Manchester M2 7BD Manchester M2 7BD (GB)