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Machine translation
1. (WO2006123989) A PROCESS FOR THE PRODUCTION OF PAPER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/123989    International Application No.:    PCT/SE2006/050090
Publication Date: 23.11.2006 International Filing Date: 27.04.2006
Chapter 2 Demand Filed:    14.03.2007    
IPC:
D21H 21/10 (2006.01)
Applicants: AKZO NOBEL N.V. [NL/NL]; P.O. Box 9300, (velperweg 76 / 6824 Bm), NL-6800 SB Arnhem (NL) (For All Designated States Except US).
EKA CHEMICALS AB [SE/SE]; -, S-445 80 Bohus (SE) (SE only).
NYANDER, Johan [SE/SE]; (SE) (For US Only).
SOLHAGE, Fredrik [SE/SE]; (SE) (For US Only)
Inventors: NYANDER, Johan; (SE).
SOLHAGE, Fredrik; (SE)
Agent: NYANDER, Johan; Eka Chemicals AB, Intellectual Property, P.o. Box 11556, S-100 61 Stockholm (SE)
Priority Data:
05104066.5 16.05.2005 EP
Title (EN) A PROCESS FOR THE PRODUCTION OF PAPER
(FR) PROCÉDÉ DE PRODUCTION DE PAPIER
Abstract: front page image
(EN)The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibres, (ii) adding to the suspension after the last point of high shear: (a) a first anionic component which is a water-soluble anionic organic polymer; (b) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (c) a third anionic component which is an anionic siliceous material; and (iii) dewatering the obtained suspension to form paper. The invention further relates to composition which comprises the first, second and third anionic components and the use of the composition as a flocculating agent in the production of pulp and paper and for water purification.
(FR)Cette invention concerne un procédé de production de papier, qui consiste: (i) à former une suspension aqueuse comprenant des fibres cellulosiques; (ii) à ajouter à cette suspension après le dernier point de cisaillement élevé: (a) un premier composant anionique constitué par un polymère organique anionique soluble dans l'eau; (b) un second composant anionique constitué par un polymère organique anionique dispersible dans l'eau ou ramifié; et (c) un troisième composant anionique constitué par une matière siliceuse anionique; et (iii) à sécher la suspension ainsi obtenue pour former du papier. Cette invention concerne en outre une composition qui comprend ces premier, deuxième et troisième composants anioniques et l'utilisation de cette composition comme agent floculant dans la production de pâte et de papier et dans l'épuration d'eau.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)