EP 0918104 A1 19990526 - A papermaking process and a cationic chemical
Title (en)
A papermaking process and a cationic chemical
Title (de)
Verfahren zur Papierherstellung und kationische Chemikalie
Title (fr)
Procédé pour faire du papier utilisant un produit chimique cationique
Publication
Application
Priority
- CA 2265432 A 19990316
- FI 974281 A 19971119
Abstract (en)
The invention relates to a process for the making of paper or a corresponding fiber product, in which process a cationic chemical is added to the paper or the corresponding fiber product in order to render hydrophobic the paper or the corresponding fiber product, the cationic chemical having the formula <CHEM> where R1, R2 and R3 are the same or different and are each a saturated or unsaturated acyclic, cyclic or aromatic hydrocarbon containing 1-41 carbon atoms, R4 is a saturated or unsaturated acyclic, cyclic or aromatic hydrocarbon containing 1-41 carbon atoms and at least one oxygen atom, and X<-> is an anion. The invention also relates to a cationic chemical which has an ability to attach to anionic surfaces.
IPC 1-7
IPC 8 full level
D21H 17/07 (2006.01); D06M 13/463 (2006.01); D21H 21/16 (2006.01)
CPC (source: EP)
D06M 13/463 (2013.01); D21H 21/16 (2013.01); D06M 2101/06 (2013.01); D06M 2200/12 (2013.01); D21H 17/07 (2013.01)
Citation (search report)
- [X] US 3872138 A 19750318 - OGATA YUZURU [JP]
- [X] DATABASE WPI Section Ch Week 9009, Derwent World Patents Index; Class A82, AN 90-064785, XP002094837
- [XA] DATABASE WPI Section Ch Week 8914, Derwent World Patents Index; Class A11, AN 89-104959, XP002094838
Designated contracting state (EPC)
AT BE CH DE ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0918104 A1 19990526; CA 2265432 A1 20000916; FI 103353 B1 19990615; FI 103353 B 19990615; FI 974281 A0 19971119; ID 21292 A 19990520; JP H11217791 A 19990810
DOCDB simple family (application)
EP 98660107 A 19981020; CA 2265432 A 19990316; FI 974281 A 19971119; ID 981514 A 19981119; JP 32850198 A 19981118