C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/39
C02F 5/10 (2006.01) C23F 11/08 (2006.01)
Patent
CA 2035207
A method of treating water to inhibit the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium and barium scales in circulating aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a polyepoxysuccinic acid of the general formula Image where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na+, NH4+, or K+ and R is hydrogen, C1-4 alkyl or C1-4 substituted alkyl.
Brown J. Michael
Chang Kin-Tai
Mcdowell John F.
Betzdearborn Inc.
Borden Ladner Gervais Llp
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