Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2006-08-15
2006-08-15
Walker, W. L. (Department: 1723)
Liquid purification or separation
Processes
Chemical treatment
C210S755000, C210S167150, C210S749000, C210S753000, C510S247000, C510S253000, C510S255000, C422S017000
Reexamination Certificate
active
07090780
ABSTRACT:
A water-treating microbicide, containing an inorganic acid and a corrosion inhibitor, and further containing a carboxylic acid having 8 or less carbon atoms or any of alkali metal salts thereof. The present invention can provide a water-treating microbicide, water treatment method and water treatment apparatus exhibiting a high sterilization effect in a membrane separation device for seawater desalination, etc.
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ALCO Chemical website <http://www.alcochemical.com/products-markets/combo/water/propAquatreat.asp> printed from the web on Jan. 7, 2005.
Fusaoka Yoshinari
Ito Akihiko
Oto Katsufumi
Sugita Kazuya
DLA Piper Rudnick Gray Cary US LLP
Menon Krishnan S.
Toray Industries Inc.
Walker W. L.
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