EP 0975837 B1 20020731 - METHOD FOR PRODUCING PAPER, PULPBOARD AND CARDBOARD
Title (en)
METHOD FOR PRODUCING PAPER, PULPBOARD AND CARDBOARD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER, PAPPE UND KARTON
Title (fr)
PROCEDE POUR LA FABRICATION DE PAPIER, CARTON ET CARTON-PATE
Publication
Application
Priority
- DE 19715832 A 19970416
- EP 9801947 W 19980402
Abstract (en)
[origin: US6303002B1] Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass Mw of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.
IPC 1-7
IPC 8 full level
D21H 17/56 (2006.01); D21H 21/02 (2006.01)
CPC (source: EP US)
D21H 21/02 (2013.01 - EP US); Y10S 162/04 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
US 6303002 B1 20011016; AT E221595 T1 20020815; AU 7521698 A 19981111; CA 2286709 A1 19981022; CA 2286709 C 20080805; DE 19715832 A1 19981022; DE 59805005 D1 20020905; EP 0975837 A1 20000202; EP 0975837 B1 20020731; ES 2181220 T3 20030216; JP 2001518994 A 20011016; WO 9846828 A1 19981022; ZA 983137 B 19991015
DOCDB simple family (application)
US 40300899 A 19991015; AT 98922636 T 19980402; AU 7521698 A 19980402; CA 2286709 A 19980402; DE 19715832 A 19970416; DE 59805005 T 19980402; EP 9801947 W 19980402; EP 98922636 A 19980402; ES 98922636 T 19980402; JP 54342698 A 19980402; ZA 983137 A 19980415