Global Patent Index - EP 1183213 A1

EP 1183213 A1 20020306 - HIGHER ACTIVES DISPERSION POLYMER TO AID CLARIFICATION, DEWATERING, AND RETENTION AND DRAINAGE

Title (en)

HIGHER ACTIVES DISPERSION POLYMER TO AID CLARIFICATION, DEWATERING, AND RETENTION AND DRAINAGE

Title (de)

HOCHAKTIVES DISPERGIERUNGSPOLYMER ZUR UNTERSTÜZUNG VON KLÄRPROZESSEN, ENTWÄSSERUNGEN, RÜCKHALTUNG UND DRAINAGE

Title (fr)

DISPERSION POLYMERE A PRINCIPES ACTIFS SUPERIEURS POUR FAVORISER LA CLARIFICATION, LA DESHYDRATATION, ET LA RETENTION ET L'ECOULEMENT

Publication

EP 1183213 A1 20020306 (EN)

Application

EP 99917406 A 19990409

Priority

US 9907916 W 19990409

Abstract (en)

[origin: WO0061501A1] The invention is a method for clarifying, dewatering or improving retention and drainage of industrial waste water or paper furnish with an effective amount of at least one dispersion of a water soluble cationic polymer flocculant wherein the improvement comprises the addition of said polymer which has a concentration of at least twenty five percent to said waste water or paper furnish. The industrial waste is preferably food processing waste water, oily waste water, paper mill waste water and inorganic contaminated waste water. The paper furnish may be an aqueous cellulosic suspension.

IPC 1-7

C02F 1/56

IPC 8 full level

B01D 21/01 (2006.01); C02F 1/56 (2006.01); C02F 11/14 (2006.01); C08F 2/44 (2006.01); C08F 20/34 (2006.01); C08F 20/60 (2006.01); C08F 291/00 (2006.01)

CPC (source: EP KR US)

C02F 1/56 (2013.01 - EP KR US); C02F 11/14 (2013.01 - KR); C02F 11/147 (2019.01 - EP US); C02F 2103/28 (2013.01 - EP KR); C02F 2103/32 (2013.01 - EP KR)

Designated contracting state (EPC)

AT BE DE DK ES FI FR GB IT NL PT

DOCDB simple family (publication)

WO 0061501 A1 20001019; AU 3553899 A 20001114; AU 775362 B2 20040729; CA 2368604 A1 20001019; CA 2368604 C 20081202; EP 1183213 A1 20020306; EP 1183213 A4 20030528; JP 2002540941 A 20021203; KR 100625732 B1 20060920; KR 20010108482 A 20011207; NO 20014690 D0 20010927; NO 20014690 L 20011206; NO 326144 B1 20081006

DOCDB simple family (application)

US 9907916 W 19990409; AU 3553899 A 19990409; CA 2368604 A 19990409; EP 99917406 A 19990409; JP 2000610782 A 19990409; KR 20017012871 A 20011009; NO 20014690 A 20010927