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1. (WO2018197222) METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/197222 International Application No.: PCT/EP2018/059366
Publication Date: 01.11.2018 International Filing Date: 12.04.2018
IPC:
D21C 3/00 (2006.01) ,D21C 9/18 (2006.01) ,B27N 5/00 (2006.01) ,D21J 1/18 (2006.01) ,D21C 3/02 (2006.01) ,D21C 3/04 (2006.01) ,D21C 9/16 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
18
De-watering
B PERFORMING OPERATIONS; TRANSPORTING
27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
N
MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
5
Manufacture of non-flat articles
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
J
FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MÂCHÉ
1
Fibreboard
16
Special fibreboard
18
Hardboard
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
02
with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
04
with acids, acid salts, or acid anhydrides
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
10
Bleaching
16
with per compounds
Applicants:
ETH ZURICH [CH/CH]; Raemistrasse 101 / ETH transfer 8092 Zurich, CH
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT; Überlandstrasse 129 8600 Dübendorf, CH
Inventors:
SCHNIDER, Thomas; CH
BURGERT, Ingo; CH
SEGMEHL, Jana; CH
KEPLINGER, Tobias; CH
Priority Data:
17168238.826.04.2017EP
Title (EN) METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL
(FR) PROCÉDÉ DE PRODUCTION D'UN MATÉRIAU COMPOSITE CELLULOSIQUE DENSIFIÉ
Abstract:
(EN) The present invention provides a method for obtaining densified material comprising the steps of: a. providing lignocellulosic material, b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material, c. densification of the delignified material providing a densified material. Furthermore, a densified material is provided. The fibers and fibrils are maintained in the structural directionality of the raw material and that the cellulosic material is whitish.
(FR) La présente invention concerne un procédé d'obtention de matériau densifié comprenant les étapes consistant à: a. fournir un matériau lignocellulosique, b. délignifier le matériau lignocellulosique fournissant un matériau délignifié, l'étape de délignification étant effectuée de telle sorte que la lignine du matériau lignocellulosique est presque complètement éliminée et l'intégrité structurale du matériau lignocellulosique étant maintenue dans le matériau délignifié, c. densifier le matériau délignifié fournissant un matériau densifié. L'invention concerne en outre un matériau densifié. Les fibres et les fibrilles sont maintenues dans la directionnalité structurelle de la matière première et la matière cellulosique est blanchâtre.
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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, JO, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)