(19)
(11) EP 4 352 295 A1

(12)

(43) Date of publication:
17.04.2024 Bulletin 2024/16

(21) Application number: 22740483.7

(22) Date of filing: 06.06.2022
(51) International Patent Classification (IPC): 
D21C 1/06(2006.01)
D21C 3/22(2006.01)
 D21C 3/02(2006.01)
D21H 11/04(2006.01)
(52) Cooperative Patent Classification (CPC):
D21C 1/06; D21C 3/02; D21C 3/22; D21H 11/04
(86) International application number:
PCT/IB2022/055259
(87) International publication number:
WO 2022/259124 (15.12.2022 Gazette 2022/50)
(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: 07.06.2021 PT 2021117273

(71) Applicant: RAIZ - Instituto De Investigação Da Floresta E Papel
3800-783 Eixo (PT)

(72) Inventors:
  • CRISTINA DE OLIVEIRA RODRIGUES PINTO,Paula
    3800-783 Eixo (PT)
  • ANDREIA ALVES ALMEIDA, Catia
    3800-783 Eixo (PT)
  • ISABEL GOMES SOARES, Belinda
    3800-783 Eixo (PT)
  • DE PASCOAL NETO, Carlos
    3800-783 Eixo (PT)

   


(54) PROCESS FOR THE PRODUCTION OF KRAFT PULP FROM HARDWOOD AND SOFTWOOD MIXTURES, KRAFT PULP OBTAINED BY THE PROCESS AND PAPER PRODUCTS PRODUCED FROM THE PULP