Isopropenyl phosphonic acid copolymers and methods of use...

C - Chemistry – Metallurgy – 08 – F

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31/35, 402/353,

C08F 230/02 (2006.01) C02F 5/12 (2006.01) C02F 5/14 (2006.01) C08F 220/18 (2006.01) C08F 220/28 (2006.01) C08F 220/56 (2006.01)

Patent

CA 1181196

Abstract of the Disclosure A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula Image wherein X = OH or OM, wherein M is a cation; and repeat units (?? ?? the formula Image wherein R1 is chosen from the group consisting of hydroxy, hydroxy- lated alkoxy, and amide and water soluble salts thereof; R2 is H, or lower alkyl of from 1-3 carbon atoms. These copolymers are effective in inhibiting the precipitation of certain scale forming salts, and also act to inhibit corrosion in water systems.

391573

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