(19)
(11) EP 3 966 386 A1

(12)

(43) Date of publication:
16.03.2022 Bulletin 2022/11

(21) Application number: 19726460.9

(22) Date of filing: 10.05.2019
(51) International Patent Classification (IPC): 
D21C 1/02(2006.01)
 D21C 9/00(2006.01)
(52) Cooperative Patent Classification (CPC):
D21C 1/02; D21C 9/002; D21C 9/007
(86) International application number:
PCT/FI2019/050371
(87) International publication number:
WO 2020/229722 (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

(71) Applicant: UPM-Kymmene Corporation
00100 Helsinki (FI)

(72) Inventors:
  • VIRTANEN, Pasi
    54920 TAIPALSAARI (FI)
  • RISTOLAINEN, Matti
    53900 LAPPEENRANTA (FI)
  • KOSONEN, Harri
    53300 LAPPEENRANTA (FI)
  • POHJALAINEN, Teemu
    53850 LAPPEENRANTA (FI)
  • MODIG, Sakari
    53900 LAPPEENRANTA (FI)
  • SAPKOTA, Janak
    53900 LAPPEENRANTA (FI)

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

   


(54) CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOSIC MATERIAL