Global Patent Index - EP 1220818 A1

EP 1220818 A1 20020710 - WATER TREATMENT AGENT FOR EXTENDING WATER EXCHANGE INTERVALS IN TANK SYSTEMS

Title (en)

WATER TREATMENT AGENT FOR EXTENDING WATER EXCHANGE INTERVALS IN TANK SYSTEMS

Title (de)

WASSERBEHANDLUNGSMITTEL ZUR VERLÄNGERUNG DER WASSERWECHSELINTERVALLE IN HÄLTERUNGSSYSTEMEN

Title (fr)

PRODUITS POUR LE TRAITEMENT DES EAUX EN VUE D'AVOIR DE PLUS LONGS INTERVALLES DE CHANGEMENTS D'EAUX DANS DES SYSTEMES DE RECEPTION

Publication

EP 1220818 A1 20020710 (DE)

Application

EP 00956453 A 20000816

Priority

  • DE 19944800 A 19990918
  • EP 0007981 W 20000816

Abstract (en)

[origin: DE19944800A1] A composition for long term improvement of water quality in biological tank systems is described and characterized by a content of: 1) at least one highly or poorly soluble Al<3+>-, Fe<3+>-, TiO<2+>- or ZrO<2+> salt of an organic carboxylic acid, optionally mixed with an organic carboxylic acid; 2) at least one water soluble N free biologically degradable organic compound; 3) at least one soluble alkali or earth alkali metal salt of an organic carboxylic acid; and 4) at least one Mg<2+> salt of an organic carboxylic acid optionally mixed with at least one Ca<2+> of an organic carboxylic acid and also 5) trace elements and vitamins, particularly water soluble vitamins of the B series. Changes in water quality determining parameters can be reduced, minimized or eliminated . by using the described agent and thus a significant reduction in partial water change frequency or a clear extension of periods without water changing can be achieved.

IPC 1-7

C02F 1/68; A01K 63/04; C02F 1/52; C02F 1/54

IPC 8 full level

A01K 63/04 (2006.01); C02F 1/68 (2006.01)

CPC (source: EP)

A01K 63/04 (2013.01); C02F 1/68 (2013.01); Y10S 426/805 (2013.01)

Citation (search report)

See references of WO 0121534A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

DE 19944800 A1 20010322; DE 19944800 B4 20120412; AU 6838800 A 20010424; AU 777871 B2 20041104; BR 0014069 A 20020514; BR 0014069 B1 20101228; CA 2382950 A1 20010329; CA 2382950 C 20090310; CN 100457648 C 20090204; CN 1374930 A 20021016; CZ 2002910 A3 20020911; EA 006817 B1 20060428; EA 200200384 A1 20020829; EP 1220818 A1 20020710; HK 1049992 A1 20030606; HK 1049992 B 20091211; JP 2003530824 A 20031021; JP 4820514 B2 20111124; KR 100747124 B1 20070809; KR 20020063857 A 20020805; PL 205060 B1 20100331; PL 353928 A1 20031215; US 6979411 B1 20051227; WO 0121534 A1 20010329

DOCDB simple family (application)

DE 19944800 A 19990918; AU 6838800 A 20000816; BR 0014069 A 20000816; CA 2382950 A 20000816; CN 00813023 A 20000816; CZ 2002910 A 20000816; EA 200200384 A 20000816; EP 0007981 W 20000816; EP 00956453 A 20000816; HK 03102162 A 20030325; JP 2001524918 A 20000816; KR 20027003599 A 20020318; PL 35392800 A 20000816; US 8804802 A 20020604