EP 1529133 A1 20050511 - METHOD FOR THE PRODUCTION OF PAPER, PAPERBOARD, AND CARDBOARD
Title (en)
METHOD FOR THE PRODUCTION OF PAPER, PAPERBOARD, AND CARDBOARD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER, PAPPE UND KARTON
Title (fr)
PROCEDE POUR PRODUIRE DU PAPIER, DU CARTON-PATE ET DU CARTON
Publication
Application
Priority
- DE 10236252 A 20020807
- EP 0308037 W 20030723
Abstract (en)
[origin: WO2004015200A1] Disclosed is a method for producing paper, paperboard, and cardboard by shearing the paper material, adding a microparticle system made of cationic polymers and a fine-particle inorganic component to the paper material following the last shearing step before agglomerating the material, dewatering the paper material so as to form sheets, and drying said sheets. Cationic polyacrylamides, polymers containing vinylamine units, and/or poly diallyl dimethyl ammonium chloride, each of which has an average molar weight Mw of at least 500,000 Dalton and a maximum charge density of 4.0 meq/g, is/are used as cationic polymers.
IPC 1-7
IPC 8 full level
D21H 23/10 (2006.01); D21H 17/45 (2006.01); D21H 23/18 (2006.01); D21H 17/37 (2006.01); D21H 17/68 (2006.01); D21H 21/10 (2006.01)
CPC (source: EP US)
D21H 23/18 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/455 (2013.01 - EP US); D21H 17/68 (2013.01 - EP US); D21H 21/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2004015200A1
Citation (third parties)
Third party :
- EP 0235893 B1 19900509
- DE 4493351 T1 19960822 - GRACE W R & CO [US]
- EP 0885328 B1 20011212 - CIBA SPEC CHEM WATER TREAT LTD [GB]
- EP 0223223 A1 19870527 - BASF AG [DE]
- WO 9533097 A1 19951207 - ALLIED COLLOIDS LTD [GB], et al
- AUHORN W.: "Blattbildung, Entwaesserung, Trocknung - verbessert durch die Chemie", WOCHENBLATT FUER PAPIERFABRIKATION, vol. 5, 1980, pages 155 - 162, XP003017491
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004015200 A1 20040219; AT E546587 T1 20120315; AU 2003250139 A1 20040225; BR 0313051 A 20050614; CA 2494648 A1 20040219; CA 2494648 C 20111004; CN 1291104 C 20061220; CN 1675432 A 20050928; DE 20220979 U1 20041014; EP 1529133 A1 20050511; EP 1529133 B1 20120222; ES 2380321 T3 20120510; JP 2005534824 A 20051117; JP 4518492 B2 20100804; PT 1529133 E 20120330; US 2005247420 A1 20051110; US 7306701 B2 20071211
DOCDB simple family (application)
EP 0308037 W 20030723; AT 03784048 T 20030723; AU 2003250139 A 20030723; BR 0313051 A 20030723; CA 2494648 A 20030723; CN 03818989 A 20030723; DE 20220979 U 20020807; EP 03784048 A 20030723; ES 03784048 T 20030723; JP 2004526759 A 20030723; PT 03784048 T 20030723; US 52341705 A 20050203