EP 0877120 B1 20000322 - PAPERMAKING PROCESS
Title (en)
PAPERMAKING PROCESS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER
Title (fr)
PROCEDE DE FABRICATION DE PAPIER
Publication
Application
Priority
- JP 9603748 W 19961224
- JP 35003595 A 19951225
- JP 1925096 A 19960111
- JP 26377496 A 19960913
Abstract (en)
[origin: EP0877120A1] There is provided a papermaking method which comprises the steps of adding to pulp in a papermaking step an ionic water-soluble polymer produced by a polymerization method for obtaining a dispersion of fine polymer particles by carrying out polymerization under agitation in an aqueous salt solution capable of dissolving monomers but not the produced polymer in the presence of a dispersant composed of a polymer electrolyte soluble in the aqueous salt solution and then adding an anionic additive selected from the group consisting of anionic colloidal silica, anionic (co)polymer, bentonite and a mixture thereof so as to improve retention and/or drainage property. The present invention makes it possible to greatly improve the retention and drainage property of paper stuff and fillers in the papermaking process and thereby enhance quality and productivity.
IPC 1-7
IPC 8 full level
D21H 21/10 (2006.01)
CPC (source: EP KR)
D21H 17/45 (2013.01 - KR); D21H 21/10 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0877120 A1 19981111; EP 0877120 A4 19990303; EP 0877120 B1 20000322; EP 0877120 B2 20060621; AT E191026 T1 20000415; AU 2011897 A 19970717; CN 1081705 C 20020327; CN 1205756 A 19990120; DE 69607394 D1 20000427; DE 69607394 T2 20000727; DE 69607394 T3 20070201; ES 2146920 T3 20000816; ES 2146920 T5 20070201; KR 100422282 B1 20050517; KR 19990063915 A 19990726; PT 877120 E 20000831; TW 342418 B 19981011; WO 9723691 A1 19970703
DOCDB simple family (application)
EP 96942614 A 19961224; AT 96942614 T 19961224; AU 2011897 A 19961224; CN 96199314 A 19961224; DE 69607394 T 19961224; ES 96942614 T 19961224; JP 9603748 W 19961224; KR 19980702388 A 19980331; PT 96942614 T 19961224; TW 85116014 A 19961224