C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/22 (2006.01) C11D 3/02 (2006.01) C11D 3/34 (2006.01) C11D 3/39 (2006.01) C23G 1/02 (2006.01)
Patent
CA 2168904
Limescale removing compositions are disclosed which comprise an arylsulfonic acid from a specific group. Said arylsulfonic acids are particularly efficient in removing limescale and they are furthermore stable to bleach/oxidants. Therefore, compositions can be formulated which further comprise acid-stable oxidant compounds. Also, mixtures of arylsulfonic acids and sulfamic acid are particularly effective in removing limescale. The compositions of the invention are used to remove limescale from a variety of surfaces.
Bianchetti Giulia Ottavia
Cardola Sergio
Scialla Stefano
Kirby Eades Gale Baker
The Procter & Gamble Company
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