(19)

(11)

EP 0 660 896 A1

(12)

(43) Date of publication: 05.07.1995 Bulletin 1995/27 (21) Application number: 92915696.0 (22) Date of filing: 29.06.1992

(51) International Patent Classification (IPC):  D21C 11/ 04( . ) D21C 11/ 12( . ) D21C 11/ 06( . ) (86) International application number: PCT/SE1992/000477 (87) International publication number: WO 1993/002249 (04.02.1993 Gazette 1993/04)

(84) Designated Contracting States: AT DE ES FR SE (30) Priority: 16.07.1991 SE 19910002186 (71) Applicant: CHEMREC AKTIEBOLAG S-651 15 Karlstad (SE)	(72) Inventor: KIGNELL, Jan-Erik S-194 40 Upplands Väsby (SE) (74) Representative: Kristiansen, Alf P.  Albihn West AB, Box 142 S-401 22 Göteborg S-401 22 Göteborg (SE)