EP 1253238 A3 20040114 - Process for loading fibres
Title (en)
Process for loading fibres
Title (de)
Verfahren zum Beladen von Fasern
Title (fr)
Procédé pour charger des fibres
Publication
Application
Priority
DE 10120637 A 20010427
Abstract (en)
[origin: EP1253238A2] In a paper-making process an additive is introduced to a suspension of pre-prepared cellulose fibres by a process (28) of chemical precipitation driven by the introduction of carbon dioxide of ( 99% pref. ( 85% purity. The carbon dioxide is introduced from a tank in which it is stored in liquid form. The gas is released and heated to between 10 and 90 degrees C prior to discharge to the fibres. The gas is the by-product of e.g. power station combustion, the incineration of chalk or fossil fuel and is filtered and washed prior to use using an aqueous fluid containing mono-ethanolamine and/or soda ash and/or copper carbonate. The bound carbon dioxide is subsequently precipitated and chilled.
IPC 1-7
IPC 8 full level
D21C 9/00 (2006.01); D21H 17/70 (2006.01); D21H 17/67 (2006.01)
CPC (source: EP US)
D21C 9/004 (2013.01 - EP US); D21H 17/70 (2013.01 - EP US); D21H 17/675 (2013.01 - EP US)
Citation (search report)
- [X] EP 0892019 A1 19990120 - ECC INT LTD [GB]
- [X] US 6063237 A 20000516 - ADAMS JOHN MICHAEL [GB], et al
- [X] GB 2273701 A 19940629 - ECC INT LTD [GB]
- [X] WO 0078874 A1 20001228 - IMERYS PIGMENTS INC [US], et al
- [X] US 5665205 A 19970909 - SRIVATSA NARENDRA R [US], et al
- [X] US 5643415 A 19970701 - WISE KENNETH J [US]
- [X] US 2001000063 A1 20010329 - SILENIUS PETRI [FI], et al
- [AD] US 5223090 A 19930629 - KLUNGNESS JOHN H [US], 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 1253238 A2 20021030; EP 1253238 A3 20040114; DE 10120637 A1 20021031; US 2002162638 A1 20021107
DOCDB simple family (application)
EP 02002837 A 20020208; DE 10120637 A 20010427; US 12818902 A 20020423