EP 0407501 A1 19910116 - METHOD AND COMPOSITION FOR DEINKING RECYCLED PAPER PULP.
Title (en)
METHOD AND COMPOSITION FOR DEINKING RECYCLED PAPER PULP.
Title (de)
VERFAHREN UND ZUSAMMENSETZUNG ZUR ENTFERNUNG DER TINTE BEI KREISLAUFPAPIERPULPE.
Title (fr)
PROCEDE ET COMPOSITION POUR LE DESENCRAGE DE PATE A PAPIER RECYCLE.
Publication
Application
Priority
US 26294788 A 19881026
Abstract (en)
[origin: WO9004674A1] Amphoteric surfactants are useful in flotation deinking of recycled waste paper especially that which has been subject to laser printing.
Abstract (fr)
Des agents tensioactifs amphotériques sont utiles dans le désencrage par flottation de papier de rebut recyclé, en particulier du papier qui a été soumis à une impression au laser.
IPC 1-7
IPC 8 full level
D21C 5/02 (2006.01)
CPC (source: EP)
D21C 5/027 (2013.01); Y02W 30/64 (2015.05)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9004674 A1 19900503; EP 0407501 A1 19910116; EP 0407501 A4 19910724; JP H03504523 A 19911003
DOCDB simple family (application)
US 8904694 W 19891020; EP 89912369 A 19891020; JP 51145689 A 19891020