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(11)

EP 0 889 995 A1

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(43) Date of publication: 13.01.1999 Bulletin 1999/02 (21) Application number: 97915804.0 (22) Date of filing: 21.03.1997

(51) International Patent Classification (IPC):  D04H 1/ 40( . ) D06M 11/ 77( . ) D06M 15/ 03( . ) D21H 17/ 67( . ) D06M 11/ 45( . ) D06M 11/ 79( . ) D21H 17/ 21( . ) D21H 17/ 68( . ) (86) International application number: PCT/SE1997/000493 (87) International publication number: WO 1997/036048 (02.10.1997 Gazette 1997/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB IT LI NL PT SE (30) Priority: 25.03.1996 SE 19960001134 (71) Applicant: Eka Chemicals AB 445 80 Bohus (SE)	(72) Inventors: CRUSLOCK, Ylva S-442 41 Kungälv (SE) DAHLGREN, Maj-Lis S-440 45 Nödinge (SE) LINDAHL, Lars S-430 33 Fjär s (SE) (74) Representative: Jönsson, Christer, et al  Eka Chemicals AB, Patent Department, Box 11556 100 61 Stockholm 100 61 Stockholm (SE)