EP 1581697 A1 20051005 - CELLULOSIC PRODUCT AND PROCESS FOR ITS PRODUCTION
Title (en)
CELLULOSIC PRODUCT AND PROCESS FOR ITS PRODUCTION
Title (de)
CELLULOSEHALTIGES PRODUKT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
PRODUIT CELLULOSIQUE ET PROCEDE DE FABRICATION CORRESPONDANT
Publication
Application
Priority
- EP 03811566 A 20031107
- EP 02445152 A 20021119
- SE 0301727 W 20031107
Abstract (en)
[origin: WO2004046464A1] The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous suspension containing cellulosic fibres, and optional filler; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. The invention also relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous suspension containing cellulosic fibres, and optional filler; (ii) adding to the suspension a cationic clay;(iii) adding to the suspension one or more drainage and retention aids comprising at least one cationic polymer; and (iv) dewatering the obtained suspension. The invention further relates to a cellulosic product comprising clay having 3R2 stacking.
IPC 1-7
IPC 8 full level
D21H 19/68 (2006.01); D21H 21/02 (2006.01); D21H 17/68 (2006.01); D21H 21/10 (2006.01)
CPC (source: EP KR)
D21H 19/68 (2013.01 - EP); D21H 21/00 (2013.01 - KR); D21H 21/02 (2013.01 - EP KR); D21H 21/04 (2013.01 - KR); D21H 17/68 (2013.01 - EP); D21H 21/10 (2013.01 - EP)
Citation (search report)
See references of WO 2004046464A1
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 2004046464 A1 20040603; AU 2003276798 A1 20040615; BR 0316393 A 20050927; CA 2506550 A1 20040603; CN 1714202 A 20051228; EP 1581697 A1 20051005; JP 2006506549 A 20060223; KR 20050083897 A 20050826; MX PA05005265 A 20050725; MY 158094 A 20160830; NO 20052997 D0 20050617; NO 20052997 L 20050819; NZ 539997 A 20071130; PL 376998 A1 20060123; RU 2005119148 A 20060310; RU 2300597 C2 20070610; TW 200420807 A 20041016; TW I263719 B 20061011; ZA 200503595 B 20060830
DOCDB simple family (application)
SE 0301727 W 20031107; AU 2003276798 A 20031107; BR 0316393 A 20031107; CA 2506550 A 20031107; CN 200380103606 A 20031107; EP 03811566 A 20031107; JP 2004553339 A 20031107; KR 20057009037 A 20050519; MX PA05005265 A 20031107; MY PI20034395 A 20031117; NO 20052997 A 20050617; NZ 53999703 A 20031107; PL 37699803 A 20031107; RU 2005119148 A 20031107; TW 92131502 A 20031111; ZA 200503595 A 20031107