EP 1314822 A1 20030528 - Process for sizing paper and sizing composition
Title (en)
Process for sizing paper and sizing composition
Title (de)
Verfahren zur Papierleimung und Leimungsmittel
Title (fr)
Procédé de collage de papier et composition de collage
Publication
Application
Priority
EP 01850198 A 20011119
Abstract (en)
The present invention relates to a process for sizing paper comprising providing an aqueous suspension comprising cellulosic fibres, dewatering said aqueous suspension thereby forming a paper web, said process comprising adding to the cellulosic suspension an aqueous composition comprising particles comprising a sizing agent, the composition obtainable by mixing in any order prior to the addition to the aqueous suspension, (i) a solution comprising at least one coagulation agent, and (ii) an aqueous dispersion comprising a sizing agent, wherein the particles of the composition comprising a sizing agent have a weight average diameter of at least 5 mu m. The invention also refers to an aqueous sizing composition.
IPC 1-7
IPC 8 full level
D21H 17/00 (2006.01); D21H 17/08 (2006.01); D21H 17/11 (2006.01); D21H 17/13 (2006.01); D21H 17/14 (2006.01); D21H 17/17 (2006.01); D21H 17/69 (2006.01); D21H 21/10 (2006.01); D21H 21/16 (2006.01); D21H 23/04 (2006.01); D21H 23/08 (2006.01)
CPC (source: EP)
D21H 21/10 (2013.01); D21H 21/16 (2013.01); D21H 17/72 (2013.01)
Citation (search report)
- [XDY] WO 0034583 A1 20000615 - HERCULES INC [US]
- [Y] US 6159339 A 20001212 - HASSLER THORD G [US], et al
- [X] WO 9833979 A1 19980806 - AKZO NOBEL NV [NL], et al
- [A] US 4657946 A 19870414 - RENDE DOMINIC S [US], et al
- [A] WO 9749865 A1 19971231 - BUCKMAN LABOR INC [US]
- [A] EP 1099795 A1 20010516 - AKZO NOBEL NV [NL]
- [A] US 6284099 B1 20010904 - PEUTHERER PETER [GB], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1314822 A1 20030528; AU 2002349853 A1 20030610; AU 2002349853 B2 20050811; BR 0214270 A 20040921; CA 2473653 A1 20030530; CN 1259481 C 20060614; CN 1589351 A 20050302; EP 1446527 A1 20040818; JP 2005509764 A 20050414; JP 3998638 B2 20071031; PL 370323 A1 20050516; RU 2004118668 A 20050310; RU 2263172 C2 20051027; WO 03044274 A1 20030530; WO 03044274 A8 20041021
DOCDB simple family (application)
EP 01850198 A 20011119; AU 2002349853 A 20021115; BR 0214270 A 20021115; CA 2473653 A 20021115; CN 02822958 A 20021115; EP 02786334 A 20021115; JP 2003545884 A 20021115; PL 37032302 A 20021115; RU 2004118668 A 20021115; SE 0202095 W 20021115