(19)

(11)

EP 0 485 498 A1

(12)

(43) Date of publication: 20.05.1992 Bulletin 1992/21 (21) Application number: 90912618.0 (22) Date of filing: 30.07.1990

(51) International Patent Classification (IPC):  D21H 17/ 62( . ) D21H 23/ 14( . ) D21H 17/ 66( . ) D21H 23/ 20( . ) (86) International application number: PCT/GB1990/001176 (87) International publication number: WO 1991/002119 (21.02.1991 Gazette 1991/05)

(84) Designated Contracting States: DE ES FR GB NL (30) Priority: 29.07.1989 GB 19890017407 29.07.1989 GB 19890017408 (71) Applicant: ROE LEE PAPER CHEMICALS CO. LIMITED Blackburn, Lancashire BB1 2NW (GB)	(72) Inventors: STREET, Peter, Christopher, Robert Blackburn Lancashire BB2 6DR (GB) BARLOW, David Blackburn Lancashire BB2 5BD (GB) JAYCOCK, Michael, James Loughborough Leicestershire LE11 0NY (GB) (74) Representative: Atkinson, Peter Birch  Marks & Clerk Suite 301 Sunlight House Quay Street Manchester M3 3JY Manchester M3 3JY (GB)