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1. (WO2017134334) A PROCESS FOR PRODUCING MICROFIBRILLATED CELLULOSE AND A PRODUCT THEREOF
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134334 International Application No.: PCT/FI2016/050916
Publication Date: 10.08.2017 International Filing Date: 22.12.2016
IPC:
D21H 11/18 (2006.01) ,D21B 1/04 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
11
Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
16
modified by a particular after-treatment
18
Highly hydrated, swollen or fibrillatable fibres
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
B
FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1
Fibrous raw materials or their mechanical treatment
04
by dividing raw materials into small particles, e.g. fibres
Applicants:
KEMIRA OYJ [FI/FI]; Porkkalankatu 3 00180 Helsinki, FI
Inventors:
VANHATALO, Kari; FI
LUNDIN, Tom; FI
LILLANDT, Marcus; FI
Agent:
BERGGREN OY; P.O.Box 16 (Eteläinen Rautatiekatu 10 A) 00101 Helsinki, FI
Priority Data:
2016507403.02.2016FI
Title (EN) A PROCESS FOR PRODUCING MICROFIBRILLATED CELLULOSE AND A PRODUCT THEREOF
(FR) PROCÉDÉ DE PRODUCTION DE CELLULOSE MICROFIBRILLÉE ET PRODUIT CORRESPONDANT
Abstract:
(EN) The present invention relates to a method of producing microfibrillated cellu- lose (MFC) comprising (i) providing cellulosic material, (ii) drying the cellulosic material so that specific surface area (SSA), when measured with BET- method, is at most 10 m2/g, and (iii) subjecting the dried cellulosic material to mechanical treatment. The present invention additionally relates to microfibril- lated cellulose produced with the method of the present invention.
(FR) La présente invention concerne un procédé de production de cellulose microfibrillée (MFC), qui consiste à : (i) à fournir une matière cellulosique, (ii) sécher la matière cellulosique de sorte que la surface spécifique (SSA), mesurée par un procédé BET, soit de 10 m2/g au maximum et (iii) soumettre la matière cellulosique séchée à un traitement mécanique. La présente invention concerne en outre la cellulose microfibrillée produite à l'aide du procédé de la présente invention.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CA3012722KR1020180104066CN108603340EP3411526BR112018015846US20190040581