EP 1831459 B1 20160323 - METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD
Title (en)
METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER, PAPPE UND KARTON
Title (fr)
PROCEDE DE FABRICATION DE PAPIER, DE CARTON-PATE ET DE CARTON
Publication
Application
Priority
- EP 2005013631 W 20051217
- DE 102004063005 A 20041222
Abstract (en)
[origin: WO2006069660A1] A method for the production of paper, cardboard and card by adding a microparticle system consisting of a polymer retention agent having a molar mass M<SUB>w</SUB> of at least 2 million and a fine-part inorganic component in order to form a paper material having a material density of a 20 g/l maximum and by dewatering the paper material, wherein the paper material undergoes at least one shearing step prior to or after addition of the retention agent and wherein the retention agent is introduced in a dosed manner into the paper material in at least two places and the fine inorganic component is dosed prior to or after addition of the retention agent or between two dosing points for the retention agent.
IPC 8 full level
D21H 21/10 (2006.01)
CPC (source: EP US)
D21H 21/10 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/55 (2013.01 - EP US); D21H 17/56 (2013.01 - EP US); D21H 17/67 (2013.01 - EP US); D21H 23/18 (2013.01 - EP US)
Citation (opposition)
Opponent : Kemira Oyj
- US 6103065 A 20000815 - HUMPHREYS HARRY NELSON [US], et al
- EP 0223223 B1 19900307
- US 4913775 A 19900403 - LANGLEY JOHN [GB], et al
- WO 02072250 A1 20020919 - METSO PAPER INC [FI], et al
- WO 9943887 A1 19990902 - AHLSTROM MACHINERY OY [FI], et al
- WO 9426972 A1 19941124 - GRACE W R & CO [US]
- WO 0017450 A1 20000330 - ECC INT INC [US], et al
- WO 0003094 A1 20000120 - ECC INT INC [US], et al
- US 2002179268 A1 20021205 - SCHWARZ MICHAEL [DE]
- US 6719881 B1 20040413 - HUNTER CHARLES R [US], et al
- WO 0225012 A1 20020328 - WETEND TECHNOLOGIES OY [FI], et al
- JOHAN GULLICHSEN ET AL.: "Papermaking Science and Technology: Book 4, Papermaking Chemistry", 1999, article "chapter 3: Retention and drainage", pages: 42 - 63, XP055336563
- HANNU PAULAPURO ET AL.: "Papermaking Science and Technology: Book 8, Papermaking Part 1, Stock Preparation and Wet End", 2000, article "Chapter 5", pages: 128-129,155 - 156, XP055338672
- K. ANDERSSON ET AL.: "Important properties of colloidal silica in mi- croparticulate systems", NORDIC PULP AND PAPER RESEARCH JOURNAL, vol. 11, no. 1, 1996, pages 15 - 21, XP055336563
- P. MÜLLER ET AL.: "Untersuchungen zur Wirkungsweise von Zweikomponenten-Retentionssystemen", WOCHENBLATT FÜR PAPIERFABRI- KATION, vol. 7, 1999, pages 460 - 465, XP055336580
- PETER MÜLLER: "Untersuchungen zur Wechselwirkung von Mikropartikelsystemen mit Faserstoffsuspensionen", THESIS (DISSERTATION), 2001, pages VI - XI,1-3 ,122-123, XP055336583
- R. LAI ET AL.: "More effective retention system through new mixing technology and optimized residence time of the chemicals", 7TH INTERNATIONAL CONFERENCE ON NEW AVAILABLE TECHNOLOGIES, 4 June 2002 (2002-06-04), Stock- holm, Sweden, XP055336589
- "Eka PL 1510", DATA SHEET EKA FACTS, 1 March 2000 (2000-03-01), XP055336590
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006069660 A1 20060706; CA 2589653 A1 20060706; CA 2589653 C 20141007; CN 101084346 A 20071205; CN 101084346 B 20120530; DE 102004063005 A1 20060713; EP 1831459 A1 20070912; EP 1831459 B1 20160323; ES 2572776 T3 20160602; PT 1831459 E 20160602; US 2010282424 A1 20101111; US 7998314 B2 20110816
DOCDB simple family (application)
EP 2005013631 W 20051217; CA 2589653 A 20051217; CN 200580043807 A 20051217; DE 102004063005 A 20041222; EP 05817729 A 20051217; ES 05817729 T 20051217; PT 05817729 T 20051217; US 72246805 A 20051217