(19)
(11) EP 3 959 373 A1

(12)

(43) Date of publication:
02.03.2022 Bulletin 2022/09

(21) Application number: 20729118.8

(22) Date of filing: 14.05.2020
(51) International Patent Classification (IPC): 
D21C 3/20(2006.01)
D21C 9/14(2006.01)
D21H 17/25(2006.01)
C08H 8/00(2010.01)
 D21C 9/10(2006.01)
D21C 9/16(2006.01)
D21H 27/10(2006.01)
(52) Cooperative Patent Classification (CPC):
D21C 3/20; D21C 9/10; D21C 9/14; D21C 9/16; D21C 9/1084; D21H 27/10; D21H 17/25; C08H 8/00; C08B 15/02; C08L 97/005; C08L 5/14; C08L 1/02
(86) International application number:
PCT/FI2020/050321
(87) International publication number:
WO 2020/229732 (19.11.2020 Gazette 2020/47)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 15.05.2019 FI 20195401

(71) Applicant: Lappeenrannan-Lahden teknillinen yliopisto LUT
53851 Lappeenranta (FI)

(72) Inventors:
  • KALLIOINEN, Mari
    53851 Lappeenranta (FI)
  • MÄNTTÄRI, Mika
    53851 Lappeenranta (FI)
  • ANUGWOM, Ikenna
    53851 Lappeenranta (FI)

(74) Representative: Berggren Oy 
P.O. Box 16 Eteläinen Rautatiekatu 10A
00101 Helsinki
00101 Helsinki (FI)

   


(54) A METHOD OF FRACTIONATING A LIGNOCELLULOSIC MATERIAL AND PRODUCTS OBTAINED BY SAID METHOD