C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/00 (2006.01)
Patent
CA 2631169
The present invention is directed to a water treatment composition, comprising: calcium hypochlorite coated with a coating comprising at least one hydrated or anhydrous salt. The present invention is also directed to a water treatment composition, comprising: (a) an inner core layer comprising calcium hypochlorite; (b) one or more interlayers of selected salts positioned on top of said inner core layer, and (c) one or more outer layers o selected salts positioned on top of said interlayer(s).
L'invention concerne une composition de traitement de l'eau comprenant de l'hypochlorite de calcium enrobé d'un revêtement comprenant au moins un sel hydraté ou anhydre. L'invention se rapporte également à une composition de traitement de l'eau comprenant: (a) une couche de noyau interne comprenant de l'hypochlorite de calcium; (b) au moins une couche intermédiaire de sels choisis disposée par-dessus la couche de noyau interne; et (c) au moins une couche externe de sels choisis disposée par-dessus la ou les couches intermédiaires précitées.
Kilby James D.
Lei Deqing
Meyer Ellen M.
Oberson Sonia
Polson George
Arch Chemicals Inc.
Smart & Biggar
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