C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/50 (2006.01) A01N 37/34 (2006.01) A01N 47/44 (2006.01) A01P 1/00 (2006.01)
Patent
CA 2671890
The present invention is directed to a composition for treating recirculating water systems, comprising: (1) a biocidal effective amount of a first nonoxidizing biocide comprising biguanide; and (2) a biocidal effective amount of a second nonoxidizing biocide comprising dibromonitrilopropionamide (DBNPA); wherein the composition is substantially free from oxidants. The present invention is also directed to a method of controlling the growth of microorganisms in recirculating water systems, comprising the step of treating the recirculating water systems with the above composition.
La présente invention concerne une composition pour traiter des systèmes d'eau recyclée, qui comprend : (1) une quantité biocide efficace d'un premier biocide non oxydant comportant du biguanide; et (2) une quantité biocide efficace d'un second biocide non oxydant comportant du dibromonitrilopropionamide (DBNPA); la composition étant sensiblement dépourvue d'oxydants. La présente invention concerne également un procédé de régulation de la croissance de micro-organismes dans des systèmes d'eau recyclée, comportant l'étape de traitement des systèmes d'eau recyclée avec la composition ci-dessus.
Choi Sungmee
O'malley Leon Peter
Roberts Kathrine P.
Unhoch Michael Joseph
Arch Chemicals Inc.
Smart & Biggar
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