(19)
(11) EP 1 268 927 A1

(12)

(43) Date of publication:
02.01.2003 Bulletin 2003/01

(21) Application number: 00910574.3

(22) Date of filing: 16.03.2000
(51) International Patent Classification (IPC)7: D21H 17/00, D21H 21/20, D21H 11/20
(86) International application number:
PCT/DK0000/118
(87) International publication number:
WO 0006/8500 (16.11.2000 Gazette 2000/46)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.05.1999 DK 61199

(71) Applicant: Novozymes A/S
2880 Bagsvaerd (DK)

(72) Inventors:
  • LUND, Martin
    DK-1719 Copenhagen V (DK)
  • FELBY, Claus
    DK-3640 Vekso (DK)

   


(54) A PROCESS FOR PRODUCTION OF PAPER MATERIALS WITH IMPROVED WET STRENGTH